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Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2014	Feb. 25, 2015	Jun. 30, 2014
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		29,960,414
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		9,943,045
Entity Registrant Name	RUSH ENTERPRISES INC \TX\
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Public Float			$ 1,232,949,299
Amendment Flag	false
Entity Central Index Key	0001012019
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Common Class B [Member]
Shareholders’ equity:
Treasury stock, at cost: 2,560,580 Class B shares	$ (41,904)	$ (30,821)
Cash and cash equivalents	191,463	217,305
Accounts receivable, net	170,027	103,293
Note receivable from affiliate	8,168
Inventories, net	1,024,104	802,220
Prepaid expenses and other	28,312	14,341
Asset held for sale	5,053
Deferred income taxes, net	18,387	16,277
Total current assets	1,445,514	1,153,436
Investments	6,905	6,628
Property and equipment, net	923,080	739,663
Goodwill, net	265,145	215,464
Other assets, net	53,618	52,607
Total assets	2,694,262	2,167,798
Floor plan notes payable	845,977	593,649
Current maturities of long-term debt	149,065	97,243
Current maturities of capital lease obligations	11,231	10,268
Liabilities directly associated with asset held for sale	6,160
Trade accounts payable	124,555	100,375
Customer deposits	44,879	58,319
Accrued expenses	92,743	69,321
Total current liabilities	1,274,610	929,175
Long-term debt, net of current maturities	429,189	385,538
Capital lease obligations, net of current maturities	46,019	35,199
Other long-term liabilities	4,470	4,683
Deferred income taxes, net	175,635	147,822
Preferred stock, par value $.01 per share; 1,000,000 shares authorized; 0 shares outstanding in 2014 and 2013	0	0
Common stock, par value $.01 per share; 60,000,000 Class A shares and 20,000,000 Class B shares authorized; 29,889,332 Class A shares and 9,999,122 Class B shares outstanding in 2014; and 28,910,505 Class A shares and 10,304,518 Class B shares outstanding in 2013	424	414
Additional paid-in capital	272,486	243,154
Retained earnings	533,793	453,836
Accumulated other comprehensive loss, net of tax	(460)	(1,202)
Total shareholders’ equity	764,339	665,381
Total liabilities and shareholders’ equity	$ 2,694,262	$ 2,167,798

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2014	Dec. 31, 2013
Common Class B [Member]
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares outstanding	9,999,122	10,304,518
Treasury stock, shares	2,560,580	2,560,580
Common Class A [Member]
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares outstanding	29,889,332	28,910,505
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues:
New and used commercial vehicle sales	$ 3,195,873	$ 2,239,847	$ 2,149,335
Parts and service sales	1,315,694	988,317	817,280
Lease and rental	177,561	129,638	100,247
Finance and insurance	19,988	15,320	13,638
Other	18,240	11,583	10,067
Total revenue	4,727,356	3,384,705	3,090,567
Cost of products sold:
New and used commercial vehicle sales	2,975,905	2,083,439	2,005,776
Parts and service sales	842,438	620,030	499,850
Lease and rental	152,967	109,222	84,174
Total cost of products sold	3,971,310	2,812,691	2,589,800
Gross profit	756,046	572,014	500,767
Selling, general and administrative	573,670	450,340	361,727
Depreciation and amortization	40,786	29,925	25,016
Gain on sale of assets	151	5	176
Operating income	141,741	91,754	114,200
Interest income (expense):
Interest income	239	41	21
Interest expense	(11,437)	(10,734)	(13,038)
Total interest expense, net	11,198	10,693	13,017
Income before taxes	130,543	81,061	101,183
Provision for income taxes	50,586	31,844	38,728
Net income	$ 79,957	$ 49,217	$ 62,455
Earnings per common share - Basic:
Net income (in Dollars per share)	$ 2.01	$ 1.25	$ 1.62
Earnings per common share - Diluted:
Net income (in Dollars per share)	$ 1.96	$ 1.22	$ 1.57

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income	$ 79,957	$ 49,217	$ 62,455
Other comprehensive income before tax and net of reclassification adjustments:
Change in fair value of interest rate swaps	789	892	317
Change in fair value of available-for-sale securities	427
Other comprehensive income, before tax	1,216	892	317
Income tax expense related to components of other comprehensive income	474	338	124
Other comprehensive income, net of tax	742	554	193
Comprehensive income	$ 80,699	$ 49,771	$ 62,648

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

Consolidated Statements of Shareholders’ Equity - USD ($) $ in Thousands	Common Class A [Member]	Common Class B [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance, amount at Dec. 31, 2011			$ 398	$ 208,569	$ (17,948)	$ 342,164	$ (1,949)	$ 531,234
Balance, shares (in Shares) at Dec. 31, 2011	27,406,000	10,777,000
Stock options exercised, amount			4	5,722				5,726
Stock options exercised, shares (in Shares)	439,000	15,000
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan				7,332				7,332
Vesting of restricted share awards, amount			1	(62)				(61)
Vesting of restricted share awards, shares (in Shares)	83,000
Issuance of common stock under employee stock purchase plan, amount			1	1,066				1,067
Issuance of common stock under employee stock purchase plan, shares (in Shares)	71,000
Other comprehensive income (loss)							193	193
Net income						62,455		62,455
Balance, amount at Dec. 31, 2012			404	222,627	(17,948)	404,619	(1,756)	607,946
Balance, shares (in Shares) at Dec. 31, 2012	27,999,000	10,792,000
Stock options exercised, amount			8	11,325				11,333
Stock options exercised, shares (in Shares)	747,000	43,000
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan				8,645				8,645
Vesting of restricted share awards, amount			1	(711)				(710)
Vesting of restricted share awards, shares (in Shares)	85,000	24,000
Issuance of common stock under employee stock purchase plan, amount			1	1,268				1,269
Issuance of common stock under employee stock purchase plan, shares (in Shares)	80,000
					(12,873)			(12,873)
(in Shares)		(554,000)
Other comprehensive income (loss)							554	554
Net income						49,217		49,217
Balance, amount at Dec. 31, 2013			414	243,154	(30,821)	453,836	(1,202)	665,381
Balance, shares (in Shares) at Dec. 31, 2013	28,911,000	10,305,000
Stock options exercised, amount			9	16,216				$ 16,225
Stock options exercised, shares (in Shares)	872,000	30,000						902,238
Stock-based compensation related to stock options, restricted shares and employee stock purchase plan				11,343				$ 11,343
Vesting of restricted share awards, amount			1	311				312
Vesting of restricted share awards, shares (in Shares)	42,000	113,000
Issuance of common stock under employee stock purchase plan, amount				1,462				1,462
Issuance of common stock under employee stock purchase plan, shares (in Shares)	64,000
Issuance of common stock related to business acquisition					1,170			1,170
					(12,253)			(12,253)
(in Shares)		(449,000)
Other comprehensive income (loss)							742	742
Net income						79,957		79,957
Balance, amount at Dec. 31, 2014			$ 424	$ 272,486	$ (41,904)	$ 533,793	$ (460)	$ 764,339
Balance, shares (in Shares) at Dec. 31, 2014	29,889,000	9,999,000

Consolidated Statements of Shareholders’ Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Additional Paid-in Capital [Member]
Tax effect, stock options exercised	$ 5,207	$ 2,566	$ 1,668
Tax effect, stock options exercised	$ 5,207	$ 2,566	$ 1,668

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$ 79,957	$ 49,217	$ 62,455
Adjustments to reconcile net income to net cash provided by (used in) operating activities-
Depreciation and amortization	126,452	93,486	73,289
Gain on sale of property and equipment, net	(151)	(5)	(176)
Stock-based compensation expense related to employee stock options and employee stock purchases	11,343	8,645	7,332
Provision for deferred income tax expense	25,229	22,081	28,164
Excess tax benefits from stock-based compensation	(5,207)	(2,566)	(1,668)
Acquired research and development	2,000
Change in accounts receivable, net	(67,664)	(10,358)	14,184
Change in inventories	(151,911)	(67,217)	32,579
Change in prepaid expenses and other, net	(13,215)	(1,789)	558
Change in trade accounts payable	24,180	38,105	(29)
Draws on floor plan notes payable – trade, net	44,870	13,044	34,504
Change in customer deposits	(13,802)	29,139	(25,347)
Change in accrued expenses	26,856	1,706	(6,509)
Net cash provided by operating activities	88,937	173,488	219,336
Cash flows from investing activities:
Acquisition of property and equipment	(260,820)	(191,584)	(170,951)
Proceeds from the sale of property and equipment	249	633	1,249
Business acquisitions	(157,626)	(72,725)	(104,571)
Proceeds from the sale of available for sale securities	150
Other	1,631	(5,992)	(24)
Net cash used in investing activities	(416,416)	(269,668)	(274,297)
Cash flows from financing activities:
Draws (payments) on floor plan notes payable – non-trade, net	207,458	46,085	(20,677)
Proceeds from long-term debt	214,622	171,166	144,639
Principal payments on long-term debt	(112,828)	(88,048)	(73,151)
Principal payments on capital lease obligations	(12,531)	(13,511)	(11,584)
Proceeds from issuance of shares relating to employee stock options and employee stock purchases	11,962	9,327	5,064
Excess tax benefits from stock-based compensation	5,207	2,566	1,668
Common stock repurchased	(12,253)	(12,873)
Net cash provided by financing activities	301,637	114,712	45,959
Net increase (decrease) in cash and cash equivalents	(25,842)	18,532	(9,002)
Cash and cash equivalents, beginning of year	217,305	198,773	207,775
Cash and cash equivalents, end of year	191,463	217,305	198,773
Cash paid during the year for:
Interest	29,539	24,195	23,275
Income taxes, net of refunds	29,795	9,314	7,122
Noncash investing and financing activities:
Common stock issued related to business acquisition	2,000
Assets acquired under capital leases	$ 24,314	$ 9,005	$ 15,892

Note 1 - Organization and Operations

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

1. ORGANIZATION AND OPERATIONS:

Rush Enterprises, Inc. (the “Company”) was incorporated in 1965 under the laws of the State of Texas. The Company operates a network of commercial vehicle dealerships that primarily sell commercial vehicles manufactured by Peterbilt, International, Hino, Ford, Isuzu, Mitsubishi Fuso, IC Bus or Blue Bird. Through its dealership network, the Company provides one-stop service for the needs of its customers, including retail sales of new and used commercial vehicles, aftermarket parts sales, service and repair facilities, financing, leasing and rental, and insurance products. The Company’s Rush Truck Centers are located throughout the United States.

Note 2 - Significant Accounting Policies

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Significant Accounting Policies [Text Block]

2. SIGNIFICANT ACCOUNTING POLICIES:

Principles of Consolidation

The consolidated financial statements presented herein include the accounts of Rush Enterprises, Inc. together with our consolidated subsidiaries. All significant inter-company balances and transactions have been eliminated in consolidation.

Estimates in Financial Statements

The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates.

Cash and Cash Equivalents

Cash and cash equivalents generally consist of cash and other money market instruments. The Company considers all highly liquid investments with an original maturity of ninety days or less to be cash equivalents.

Allowance for Doubtful Receivables and Repossession Losses

The Company provides an allowance for doubtful receivables and repossession losses after considering historical loss experience and other factors that might affect the collection of accounts receivable and the ability of customers to meet their obligations on finance contracts sold by the Company.

Inventories

Inventories are stated at the lower of cost or market value. Cost is determined by specific identification of new and used commercial vehicle inventory and by the first-in, first-out method for parts and accessories. An allowance is provided when it is anticipated that cost will exceed net realizable value less a reasonable profit margin.

Property and Equipment

Property and equipment are stated at cost and depreciated over their estimated useful lives. Leasehold improvements are amortized over the useful life of the improvement, or the term of the lease, whichever is shorter. Provision for depreciation of property and equipment is calculated primarily on a straight-line basis. The Company capitalizes interest on borrowings during the active construction period of major capital projects. Capitalized interest, when incurred, is added to the cost of underlying assets and is amortized over the estimated useful life of such assets. The Company capitalized interest of approximately $244,000 related to major capital projects during 2014. The cost, accumulated depreciation and amortization and estimated useful lives are summarized as follows (in thousands):

	2014			2013			Estimated Life (Years)
Land	$	98,033		$	81,196			–
Buildings and improvements		233,742			205,778		31	–	39
Leasehold improvements		27,100			25,681		2	–	39
Machinery and shop equipment		48,988			42,274		5	–	20
Furniture, fixtures and computers		57,730			45,723		3	–	15
Transportation equipment		47,758			45,005		2	–	15
Lease and rental vehicles		697,147			547,557		2	–	8
Construction in progress		39,775			6,000
Accumulated depreciation and amortization		(327,193	)		(259,551	)

Total	$	923,080		$	739,663

As of December 31, 2014, the Company had $54.8 million in lease and rental vehicles under various capital leases included in property and equipment, net of accumulated amortization of $21.5 million. The Company recorded depreciation expense of $115.3 million and amortization expense of $11.2 million for the year ended December 31, 2014, and depreciation expense of $82.3 million and amortization expense of $11.2 million for the year ended December 31, 2013. Depreciation and amortization of vehicles related to lease and rental operations is included in lease and rental cost of products sold.

Goodwill

Goodwill is the excess of the purchase price over the fair value of identifiable net assets acquired in business combinations accounted for under the purchase method. The Company tests goodwill for impairment annually in the fourth quarter, or when indications of potential impairment exist. These indicators would include a significant change in operating performance, or a planned sale or disposition of a significant portion of the business, among other factors. The Company tests for goodwill impairment utilizing a fair value approach at the reporting unit level. A reporting unit is an operating segment, for which discrete financial information is prepared and regularly reviewed by segment management. The Company has deemed its reporting unit to be the Truck Segment, which is the level at which management regularly reviews operating results and makes resource allocation decisions.

The impairment test for goodwill involves comparing the fair value of a reporting unit to its carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, a second step is required to measure the goodwill impairment loss. The second step includes hypothetically valuing all the tangible and intangible assets of the reporting unit as if the reporting unit had been acquired in a business combination and comparing the hypothetical implied fair value of the reporting unit’s goodwill to the carrying amount of that goodwill. If the carrying amount of the reporting unit’s goodwill exceeds the hypothetical implied fair value of the goodwill, the Company would recognize an impairment loss in an amount equal to the excess, not to exceed the carrying amount. The Company determines the fair values calculated in an impairment test using the discounted cash flow method, which requires assumptions and estimates regarding future revenue, expenses and cash flow projections. The analysis is based upon available information regarding expected future cash flows of its reporting unit discounted at rates consistent with the cost of capital specific to the reporting unit.

No impairment write down was required in the fourth quarter of 2014. However, the Company cannot predict the occurrence of certain events that might adversely affect the reported value of goodwill in the future.

The following table sets forth the change in the carrying amount of goodwill for the Company for the years ended December 31, 2014 and 2013 (in thousands):

Balance December 31, 2012	$	198,257
Acquisitions		17,182
Adjustment		25
Balance December 31, 2013		215,464
Acquisitions		49,609
Adjustment		72
Balance December 31, 2014	$	265,145

Other Assets

The total capitalized costs of the SAP enterprise software and SAP dealership management system of $38.5 million, including capitalized interest, are recorded on the Consolidated Balance Sheet in Other Assets, net of accumulated amortization of $10.3 million. The SAP software is being amortized over a period of 15 years. The Company is currently operating 101 Rush Truck Centers and all of its leasing operations on the SAP enterprise software and SAP dealership management system, which represent approximately 90% of the Company’s total revenues for the year ended December 31, 2014. The Company plans to convert all of its existing Rush Truck Centers to the SAP enterprise software and SAP dealership management system by the end of the second quarter of 2015.

Amortization expense relating to the SAP software, which is recognized in depreciation and amortization expense in the Consolidated Statements of Income, was $3.2 million for the year ended December 31, 2014, $3.0 million for the year ended December 31, 2013, and $3.0 million for the year ended December 31, 2012. The Company estimates that amortization expense relating to the SAP software will be approximately $3.2 million for each of the next five succeeding years.

The Company’s only significant identifiable intangible assets, other than goodwill, are rights under franchise agreements with manufacturers. The fair value of the franchise right is determined at the acquisition date by discounting the projected cash flows specific to each acquisition. The carrying value of the Company’s manufacturer franchise rights was $6.9 million at December 31, 2014, and $4.5 million at December 31, 2013, and is included in Other Assets on the accompanying consolidated balance sheets. The Company has determined that manufacturer franchise rights have an indefinite life as there are no economic or other factors that limit their useful lives and they are expected to generate cash flows indefinitely due to the historically long lives of the manufacturers’ brand names. Furthermore, to the extent that any agreements evidencing manufacturer franchise rights have expiration dates, the Company expects that it will be able to renew those agreements in the ordinary course of business. Accordingly, the Company does not amortize manufacturer franchise rights.

Due to the fact that manufacturer franchise rights are specific to geographic region, the Company has determined that the geographic region is the appropriate level for purposes of testing franchise rights for impairment. Management reviews indefinite-lived manufacturer franchise rights for impairment annually during the fourth quarter, or more often if events or circumstances indicate that an impairment may have occurred. The Company is subject to financial statement risk to the extent that manufacturer franchise rights become impaired due to decreases in the fair market value of its individual franchises.

The significant estimates and assumptions used by management in assessing the recoverability of manufacturer franchise rights include estimated future cash flows, present value discount rate, and other factors. Any changes in these estimates or assumptions could result in an impairment charge. The estimates of future cash flows, based on reasonable and supportable assumptions and projections, require management’s subjective judgment. Depending on the assumptions and estimates used, the estimated future cash flows projected in the evaluations of manufacturer franchise rights can vary within a range of outcomes.

No impairment write down was required in the fourth quarter of 2014. The Company cannot predict the occurrence of certain events that might adversely affect the reported value of manufacturer franchise rights in the future.

Income Taxes

Significant management judgment is required to determine the provisions for income taxes and to determine whether deferred tax assets will be realized in full or in part. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. When it is more likely than not that all or some portion of specific deferred income tax assets will not be realized, a valuation allowance must be established for the amount of deferred income tax assets that are determined not to be realizable. Accordingly, the facts and financial circumstances impacting state deferred income tax assets are reviewed quarterly and management’s judgment is applied to determine the amount of valuation allowance required, if any, in any given period.

In determining our provision for income taxes, the Company uses an annual effective income tax rate based on annual income, permanent differences between book and tax income, and statutory income tax rates. The effective income tax rate also reflects our assessment of the ultimate outcome of tax audits. The Company adjusts its annual effective income tax rate as additional information on outcomes or events becomes available. Discrete events such as audit settlements or changes in tax laws are recognized in the period in which they occur.

The Company’s income tax returns are periodically audited by U.S. federal, state and local tax authorities. These audits include questions regarding the Company’s tax filing positions, including the timing and amount of deductions. At any time, multiple tax years are subject to audit by the various tax authorities. In evaluating the tax benefits associated with the Company’s various tax filing positions, the Company records a tax benefit for uncertain tax positions. A number of years may elapse before a particular matter for which the Company has established a liability is audited and effectively settled. The Company adjusts its liability for unrecognized tax benefits in the period in which it determines the issue is effectively settled with the tax authorities, the statute of limitations expires for the relevant taxing authority to examine the tax position, or when more information becomes available. The Company includes its liability for unrecognized tax benefits, including accrued interest, in accrued liabilities on the Company’s Consolidated Balance Sheet and in income tax expense in the Company’s Consolidated Statements of Income. Unfavorable settlement of any particular issue would require use of the Company’s cash and a charge to income tax expense. Favorable resolution would be recognized as a reduction to income tax expense at the time of resolution.

Additionally, despite the Company’s belief that its tax return positions are consistent with applicable tax law, management expects that certain positions may be challenged by taxing authorities. Settlement of any challenge can result in no change, a complete disallowance, or some partial adjustment reached through negotiations.

Revenue Recognition Policies

Income on the sale of a vehicle is recognized when the Company and a customer execute a purchase contract, delivery has occurred and there are no significant uncertainties related to financing or the purchase price is paid by the customer. The Company generally sells finance contracts it enters into with customers to finance the purchase of commercial vehicles to third parties. These finance contracts are sold both with and without recourse. A majority of the Company’s finance contracts are sold without recourse. Finance income is recognized by the Company upon the sale of such finance contracts to the finance companies, net of a provision for estimated repossession losses and early repayment penalties.

Lease and rental income is recognized over the period of the related lease or rental agreement. Contingent rental income is recognized when it is earned. Parts and services revenue is earned at the time the Company sells the parts to its customers or at the time the Company completes the service work order related to service provided to the customer’s vehicle. Payments received on prepaid maintenance plans are deferred as a component of accrued expenses and recognized as income when the maintenance is performed.

Cost of Sales

For the Company’s new and used commercial vehicle operations and its parts operations, cost of sales consists primarily of the Company’s actual purchase price, less manufacturer’s incentives, for new and used commercial vehicles and parts. The Company is subject to a chargeback of manufacturer incentives for commercial vehicles that are not sold to the customer for which they were ordered. The Company records a liability for a potential chargeback of manufacturer incentives in its financial statements. For the Company’s service and body shop operations, technician labor cost is the primary component of cost of sales. For the Company’s rental and leasing operations, cost of sales consists primarily of depreciation and amortization, rent, and interest expense on the lease and rental fleet owned and leased by the Company, and the maintenance cost of the lease and rental fleet. There are no costs of sales associated with the Company’s finance and insurance revenue or other revenue.

Taxes Assessed by a Governmental Authority

The Company accounts for sales taxes assessed by a governmental authority, that are directly imposed on a revenue-producing transaction, on a net (excluded from revenues) basis.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist primarily of incentive based compensation for sales, finance and general management personnel, salaries for administrative personnel and expenses for rent, marketing, insurance, utilities, research and development and other general operating purposes.

In May 2013, the Company entered into a Retirement and Transition Agreement with the Company’s former Chairman, W. Marvin Rush, which resulted in the recognition of $10.8 million in retirement pay and benefits recorded in selling, general and administrative expense on the Consolidated Statements of Income.

Stock Based Compensation

The Company applies the provisions of ASC topic 718-10, “Compensation – Stock Compensation,” which requires the measurement and recognition of compensation expense for all share-based payment awards made to employees and directors including grants of employee stock options, restricted stock units, restricted stock awards and employee stock purchases under the Employee Stock Purchase Plan based on estimated fair values.

The Company uses the Black-Scholes option-pricing model to estimate the fair value of share-based payment awards on the date of grant. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods.

Compensation expense for all share-based payment awards is recognized using the straight-line single-option method. Stock-based compensation expense is recognized based on awards expected to vest. Accordingly, stock based compensation expense has been reduced for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

The Company’s determination of fair value of share-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of highly complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards and actual and projected stock option exercise behaviors. Option-pricing models were developed for use in estimating the value of traded options that have no vesting or hedging restrictions and are fully transferable. Because the Company’s stock options have characteristics that are significantly different from traded options and because changes in the subjective assumptions can materially affect the estimated value, in management’s opinion, the existing valuation models may not provide an accurate measure of the fair value that value may not be indicative of the fair value observed in a market transaction between a willing buyer and a willing seller.

The following table reflects the weighted-average fair value of stock options granted during each period using the Black-Scholes option valuation model with the following weighted-average assumptions used:

	2014		2013		2012
Expected stock volatility		51.51%		49.59%		53.64%
Weighted-average stock volatility		51.51%		49.59%		53.64%
Expected dividend yield		0.0%		0.0%		0.0%
Risk-free interest rate		2.14%		1.22%		1.11%
Expected life (years)		6.5		6.5		5.0
Weighted-average fair value of stock options granted	$	15.86	$	12.69	$	10.95

The Company computes its historical stock price volatility in accordance with ASC topic 718-10. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The dividend yield assumption is based on the Company’s history and expectation of dividend payouts. The expected life of stock options represents the weighted-average period the stock options are expected to remain outstanding.

Advertising Costs

Advertising costs are expensed as incurred. Advertising and marketing expense was $8.7 million for 2014, $6.8 million for 2013 and $4.4 million for 2012. Advertising and marketing expense is included in selling, general and administrative expense.

Accounting for Internal Use Software

The Company’s accounting policy with respect to accounting for computer software developed or obtained for internal use is consistent with ASC topic 350-40, which provides guidance on accounting for the costs of computer software developed or obtained for internal use and identifies characteristics of internal-use software. The Company has capitalized software costs, including capitalized interest, of approximately $38.5 million at December 31, 2014, net of accumulated amortization of $10.3 million, and $40.8 million, net of accumulated amortization of $7.1 million at December 31, 2013.

Insurance

The Company is partially self-insured for a portion of the claims related to its property and casualty insurance programs. Accordingly, the Company is required to estimate expected losses to be incurred. The Company engages a third-party administrator to assess any open claims and the Company adjusts its accrual accordingly on an annual basis. The Company is also partially self-insured for a portion of the claims related to its worker’s compensation and medical insurance programs. The Company uses actuarial information provided from third-party administrators to calculate an accrual for claims incurred, but not reported, and for the remaining portion of claims that have been reported.

Derivative Instruments and Hedging Activities

The Company utilizes derivative financial instruments to manage its interest rate risk. The types of risks hedged are those relating to the variability of cash flows and changes in the fair value of the Company’s financial instruments caused by fluctuations in interest rates. The Company assesses hedge effectiveness at the inception and during the term of each hedge. Derivatives are reported at fair value on the accompanying Consolidated Balance Sheets.

Fair Value Measurements

The Company has various financial instruments that it must measure at fair value on a recurring basis, including certain available for sale securities and derivatives. See Note 9 – Financial Instruments and Fair Value of the Notes to Consolidated Financial Statements, for further information. The Company also applies the provisions of fair value measurement to various nonrecurring measurements for its financial and nonfinancial assets and liabilities.

Applicable accounting standards define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (an exit price). The Company measures its assets and liabilities using inputs from the following three levels of the fair value hierarchy:

Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2 inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

Level 3 includes unobservable inputs that reflect the Company’s assumptions about what factors market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data.

Acquisitions

The Company uses the acquisition method of accounting for the recognition of assets acquired and liabilities assumed with acquisitions at their estimated fair values as of the date of acquisition. Any excess consideration transferred over the estimated fair values of the identifiable net assets acquired is recorded as goodwill. While the Company uses its best estimates and assumptions to measure the fair value of the identifiable assets acquired and liabilities assumed at the acquisition date, the estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which is not to exceed one year from the date of acquisition, any changes in the estimated fair values of the net assets recorded for the acquisitions will result in an adjustment to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our Consolidated Statements of Income.

New Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update that amends the accounting guidance on revenue recognition. The amendments in this accounting standard update are intended to provide a more robust framework for addressing revenue issues, improve comparability of revenue recognition practices, and improve disclosure requirements. The amendments in this accounting standard update are effective for interim and annual reporting periods beginning after December 15, 2016, and should be applied using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting the standard recognized at the date of adoption (which requires additional footnote disclosures). Early adoption is not permitted. The Company is currently evaluating the method of adoption and the impact of the provisions of the accounting standard update.

Note 3 - Supplier and Customer Concentration

12 Months Ended

Dec. 31, 2014

Risks and Uncertainties [Abstract]

Concentration Risk Disclosure [Text Block]

3. SUPPLIER AND CUSTOMER CONCENTRATION:

Major Suppliers and Dealership Agreements

The Company has entered into dealership agreements with various manufacturers of commercial vehicles and buses (“Manufacturers”). These agreements are nonexclusive agreements that allow the Company to stock, sell at retail and service commercial vehicles and products of the Manufacturers in the Company’s defined market. The agreements allow the Company to use the Manufacturers’ names, trade symbols and intellectual property and expire as follows:

Manufacturer		Expiration Dates
Peterbilt		August 2015 through May 2017
International		March 2016 through May 2020
Isuzu		Indefinite
Hino		Indefinite
Ford		Indefinite
Blue Bird		August 2016
IC Bus		May 2015 through December 2017

These agreements, as well as agreements with various other Manufacturers, impose a number of restrictions and obligations on the Company, including restrictions on a change in control of the Company and the maintenance of certain required levels of working capital. Violation of these restrictions could result in the loss of the Company’s right to purchase the Manufacturers’ products and use the Manufacturers’ trademarks.

The Company purchases its new Peterbilt vehicles from Peterbilt and most of its parts from PACCAR, Inc., the parent company of Peterbilt, at prevailing prices charged to all franchised dealers. Sales of new Peterbilt trucks accounted for approximately 63.5% of the Company’s new vehicle sales for the year ended December 31, 2014, 65.5% of the Company’s new vehicle sales for the year ended December 31, 2013, and 75.1% of the Company’s new vehicle sales for the year ended December 31, 2012.

Primary Lenders

The Company purchases its new and used commercial vehicle inventories with the assistance of floor plan financing programs. The Company’s floor plan financing agreements provide that the occurrence of certain events will be considered events of default. In the event that the Company’s floor plan financing becomes insufficient, or its relationship with any of its current primary lenders terminates, the Company would need to obtain similar financing from other sources. Management believes it can obtain additional floor plan financing or alternative financing if necessary.

The Company also acquires lease and rental vehicles with the assistance of financing agreements with PACCAR Leasing Company, Bank of America, GE Capital and Wells Fargo. The financing agreements are secured by a lien on the acquired vehicle. The terms of the financing agreements are similar to the corresponding lease agreements with the Company’s customers.

Concentrations of Credit Risks

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company places its cash and cash equivalents with what it considers to be quality financial institutions based on periodic assessments of such institutions. Our cash and cash equivalents may be uninsured or in deposit accounts that exceed the Federal Deposit Insurance Corporation insurance limit.

The Company controls credit risk through credit approvals and by selling a majority of its trade receivables, other than vehicle accounts receivable, without recourse. Concentrations of credit risk with respect to trade receivables are reduced because a large number of geographically diverse customers make up the Company’s customer base; however, substantially all of the Company’s business is concentrated in the United States commercial vehicle markets and related aftermarkets.

The Company generally sells finance contracts it enters into with customers to finance the purchase of commercial vehicles to third parties. These finance contracts are sold both with and without recourse. A majority of the Company’s finance contracts are sold without recourse. The Company provides an allowance for doubtful receivables and a reserve for repossession losses related to finance contracts sold with recourse. Historically, the Company’s allowance and reserve have covered losses inherent in these receivables.

Note 4 - Accounts Receivable

12 Months Ended

Dec. 31, 2014

Receivables [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

4. ACCOUNTS RECEIVABLE:

The Company’s accounts receivable, net, consisted of the following (in thousands):

	December 31,
	2014			2013

Trade accounts receivable from sale of vehicles	$	96,850		$	42,830
Trade receivables other than vehicles		34,404			27,387
Warranty claims		8,624			10,616
Other accounts receivable		30,928			23,700
Less allowance for bad debt and warranty receivable		(779	)		(1,240	)

Total	$	170,027		$	103,293

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Note 5 - Inventories

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

5. INVENTORIES:

The Company’s inventories, net, consisted of the following (in thousands):

	December 31,
	2014			2013

New commercial vehicles	$	749,615		$	566,396
Used commercial vehicles		84,972			75,731
Parts and accessories		186,208			157,873
Other		19,020			14,031
Less allowance		(15,711	)		(11,811	)

Total	$	1,024,104		$	802,220

Note 6 - Valuation Accounts

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

6. VALUATION ACCOUNTS:

Valuation and allowance accounts include the following (in thousands):

	Balance Beginning of Year		Net Charged to Costs and Expenses		Net Write-Offs			Balance End of Year

2014
Reserve for accounts receivable	$	821	$	919	$	(1,101	)	$	639
Reserve for warranty receivable		419		411		(690	)		140
Reserve for parts inventory		4,416		2,547		(1,896	)		5,067
Reserve for commercial vehicle inventory		7,395		17,416		(14,167	)		10,644

2013
Reserve for accounts receivable	$	540	$	1,163	$	(882	)	$	821
Reserve for warranty receivable		444		626		(651	)		419
Reserve for parts inventory		3,593		2,560		(1,737	)		4,416
Reserve for commercial vehicle inventory		6,839		13,020		(12,464	)		7,395

2012
Reserve for accounts receivable	$	480	$	922	$	(862	)	$	540
Reserve for warranty receivable		480		334		(370	)		444
Reserve for parts inventory		3,406		1,796		(1,609	)		3,593
Reserve for commercial vehicle inventory		1,624		12,944		(7,729	)		6,839

Allowance for Doubtful Receivables

The Company sells a majority of its customer accounts receivable on a non-recourse basis to a third-party that is responsible for qualifying the customer for credit at the point of sale. If the third-party approves the customer for credit, then the third-party assumes all credit risk related to the transaction. The Company provides an allowance for doubtful receivables after considering historical loss experience and other factors that might affect the collection of accounts receivable.

The Company provides an allowance for uncollectible warranty receivables. The Company evaluates the collectability of its warranty claims receivable based on a combination of factors, including aging and correspondence with the applicable manufacturer. Management reviews the warranty claims receivable aging and adjusts the allowance based on historical experience. The Company records charge-offs related to warranty receivables after it is determined that the receivable will not be fully collected.

Inventory

The Company provides a reserve for obsolete and slow moving parts. The reserve is reviewed and, if necessary, adjustments are made on a quarterly basis. The Company relies on historical information to support its reserve. Once the inventory is written down, the Company does not reverse any reserve balance until the inventory is sold.

The valuation for new and used commercial vehicle inventory is based on specific identification. A detail of new and used commercial vehicle inventory is reviewed and, if necessary, adjustments to the value of specific vehicles are made on a quarterly basis.

Note 7 - Floor Plan Notes Payable and Lines of Credit

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

7. FLOOR PLAN NOTES PAYABLE AND LINES OF CREDIT:

Floor Plan Notes Payable

Floor plan notes are financing agreements to facilitate the Company’s purchase of new and used commercial vehicles. These notes are collateralized by the inventory purchased and accounts receivable arising from the sale thereof. The GE Credit Agreement provides for a loan commitment of up to $750.0 million and has the interest rate benchmarked to LIBOR, as defined in the agreement.

The interest rate under the GE Credit Agreement is the three month LIBOR rate plus 2.03%. The interest rate applicable to the GE Credit Agreement was approximately 2.28% at December 31, 2014. The Company utilizes its excess cash on hand to pay down its outstanding borrowings under the GE Credit Agreement, and the resulting interest earned is recognized as an offset to the Company’s gross interest expense under the agreement. The Company is required to pay a monthly working capital fee equal to 0.35% per annum multiplied by the amount of voluntary prepayments of new and used inventory loans. GE Capital may terminate the agreement without cause upon 120 days written notice.

The Company finances substantially all of the purchase price of its new commercial vehicle inventory, and the loan value of its used commercial vehicle inventory under the GE Credit Agreement, under which GE Capital pays the manufacturer directly with respect to new commercial vehicles. Amounts borrowed under the GE Credit Agreement are due when the related commercial vehicle inventory (collateral) is sold and the sales proceeds are collected by the Company. Pursuant to the third amendment, the GE Credit Agreement expires July 11, 2016, although GE Capital has the right to terminate the GE Credit Agreement at any time upon 120 days’ written notice. We may terminate the agreement at any time, although, if we do so, we must pay the lenders a prepayment processing fee of (i) $7,500,000 if it terminates on or prior to July 11, 2015; and (ii) $300,000 if it terminates thereafter, subject in each case to specified limited exceptions. On December 31, 2014, the Company had approximately $677.8 million outstanding under the GE Credit Agreement.

In June 2012, the Company entered into a wholesale financing agreement with Ford Motor Credit Company that provides for the financing of, and is collateralized by, the Company’s new Ford vehicle inventory. This wholesale financing agreement bears interest at a rate of Prime plus 150 basis points minus certain incentives and rebates; however, the prime rate is defined to be a minimum of 3.75%. As of December 31, 2014, the interest rate on the wholesale financing agreement was 5.25% before considering the applicable incentives. On December 31, 2014, the Company had an outstanding balance of $79.4 million under the Ford Motor Credit Company wholesale financing agreement.

The Company’s weighted average interest rate for floor plan notes payable was 1.16% for the year ended December 31, 2014, and 1.26% for the year ended December 31, 2013, which is net of interest related to prepayments of new and used inventory loans.

Assets pledged as collateral were as follows (in thousands):

	December 31,
	2014		2013
Inventories, new and used vehicles at cost based on specific identification, net of allowance	$	823,944	$	634,732
Vehicle sale related accounts receivable		96,853		42,830

Total	$	920,797	$	677,562

Floor plan notes payable related to vehicles	$	845,977	$	593,649

Lines of Credit

The Company has a secured line of credit that provides for a maximum borrowing of $17.5 million. There were no advances outstanding under this secured line of credit at December 31, 2014; however, $15.3 million was pledged to secure various letters of credit related to self-insurance products, leaving $2.2 million available for future borrowings as of December 31, 2014.

Note 8 - Long-term Debt

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Long-term Debt [Text Block]

8. LONG-TERM DEBT:

Long-term debt was comprised of the following (in thousands):

	December 31,
	2014			2013

Variable interest rate term notes	$	74,834		$	76,162
Fixed interest rate term notes		503,420			406,619

Total debt		578,254			482,781

Less: current maturities		(149,065	)		(97,243	)

Total long-term debt, net of current maturities	$	429,189		$	385,538

As of December 31, 2014, debt maturities were as follows (in thousands):

2015	$	149,065
2016		131,793
2017		105,649
2018		85,404
2019		59,168
Thereafter		47,175

Total	$	578,254

The interest rates on the Company’s variable interest rate notes are based on LIBOR. The interest rates on the notes range from approximately 1.6% to 3.0% on December 31, 2014. Payments on the notes range from approximately $1,910 to $80,000 per month, plus interest. Maturities of these notes range from June 2015 to December 2018.

The Company’s fixed interest rate notes are with financial institutions and had interest rates that ranged from approximately 2.42% to 8.02% on December 31, 2014. Payments on the notes range from $98 to $59,437 per month, plus interest. Maturities of these notes range from January 2015, to December 2023.

The proceeds from the issuance of the notes were used primarily to acquire land, buildings and improvements, transportation equipment and leasing vehicles. The notes are secured by the assets acquired with the proceeds of such notes.

The Company's long-term debt agreements and floor plan financing arrangements require it to satisfy various financial ratios such as the debt-to-worth ratio, leverage ratio and the fixed charge coverage ratio and certain requirements for tangible net worth and GAAP net worth. On December 31, 2014, the Company was in compliance with all of its debt covenants except with respect to the leverage ratio requirement in the GE Credit Agreement and the Wells Fargo Equipment Finance, Inc. loan agreement and the Company received waivers of noncompliance from each of these lenders. As of December 31, 2014, the Company had obligations under the GE Credit Agreement in the amount of $677.8 million and the Wells Fargo Equipment Finance, Inc. loan agreement in the amount of $82.7 million. Pursuant to the terms of such agreements, the Company is required to have a leverage ratio of 2.50:1 as of the end of each fiscal quarter. As of December 31, 2014, the Company's leverage ratio was 2.52:1. The noncompliance was primarily the result of inventories being at a higher level due to industry forecasted demand and not due to any existing financial problems that were materially affecting the Company's business. As a condition of the waivers, the Company is required to be back in compliance with the leverage ratio as of March 31, 2015, and for each quarter thereafter. The Company does not anticipate the breach of any of its debt covenants, including the leverage ratio covenant, in the foreseeable future.

Note 9 - Financial Instruments and Fair Value

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

9. FINANCIAL INSTRUMENTS AND FAIR VALUE:

The Company measures certain financial assets and liabilities at fair value on a recurring basis. Financial instruments consist primarily of cash, accounts receivable, accounts payable and floor plan notes payable. The carrying values of the Company’s financial instruments approximate fair value due either to their short-term nature or existence of variable interest rates, which approximate market rates. Certain methods and assumptions were used by the Company in estimating the fair value of financial instruments at December 31, 2014, and 2013. The carrying value of current assets and current liabilities approximates the fair value due to the short maturity of these items.

The fair value of the Company’s long-term debt is based on secondary market indicators. Because the Company’s debt is not quoted, estimates are based on each obligation’s characteristics, including remaining maturities, interest rate, credit rating, collateral and liquidity. Accordingly, the Company concluded the valuation measurement inputs of its long-term debt to represent, at its lowest level, current market interest rates available to the Company for similar debt and the Company’s current credit standing and has categorized such debt within Level 2 of the hierarchy framework. The carrying amount approximates fair value.

If investments are deemed to be impaired, the Company determines whether the impairment is temporary or other than temporary. If the impairment is deemed to be temporary, the Company records an unrealized loss in other comprehensive income. If the impairment is deemed other than temporary, the Company records the impairment in the Company’s Consolidated Statements of Income.

In prior years, the Company invested in interest-bearing short-term investments primarily consisting of investment-grade auction rate securities classified as available-for-sale and reported at fair value. These types of investments were designed to provide liquidity through an auction process that reset the applicable interest rates at predetermined periods ranging from 1 to 35 days. This reset mechanism was intended to allow existing investors to continue to own their respective interest in the auction rate security or to gain immediate liquidity by selling their interests at par.

Auctions for investment grade securities held by the Company have failed. However, a failed auction does not represent a default by the issuer. The auction rate securities continue to pay interest in accordance with the terms of the underlying security; however, liquidity will be limited until there is a successful auction or until such time as other markets for these investments develop. The Company has the intent and ability to hold these auction rate securities until liquidity returns to the market. The Company does not believe that the lack of liquidity relating to its auction rate securities will have a material impact on its ability to fund operations.

As of December 31, 2014, the Company held auction rate securities with underlying tax-exempt municipal bonds that mature in 2030 and have a fair value of $6.9 million and a cost basis of $7.4 million. As of December 31, 2013, the auction rate securities had a fair value of $6.6 million and a cost basis of $7.6 million. The Company redeemed $150,000 of the auction rate securities during the second quarter of 2014. These bonds have credit wrap insurance and a credit rating of A by a major credit rating agency.

The Company valued the auction rate securities at December 31, 2014 using a discounted cash flow model based on the characteristics of the individual securities, which the Company believes yields the best estimate of fair value. The first step in the valuation included a credit analysis of the security which considered various factors including the credit quality of the issuer, the instrument’s position within the capital structure of the issuing authority, and the composition of the authority’s assets including the effect of insurance and/or government guarantees. Next, the future cash flows of the instruments were projected based on certain assumptions regarding the auction rate market significant to the valuation including the auction rate market will remain illiquid and auctions will continue to fail causing the interest rate to be the maximum applicable rate. This assumption resulted in discounted cash flow analysis being performed through 2019, the point at which the Company estimates the securities will be redeemed by the municipality. The projected cash flows were then discounted using the applicable yield curve plus a 225 basis point liquidity premium added to the applicable discount rate.

The Company recorded a pre-tax impairment charge of $1.0 million on these auction rate securities in 2011 and a subsequent pre-tax increase in fair value of $427,000 during 2014. The Company believes that the impairment is temporary and has included the impairment in accumulated other comprehensive loss.

The table below presents disclosures about the auction rate securities measured at fair value on a recurring basis in the Company’s financial statements as follows (in thousands):

At December 31, 2014

At December 31, 2013

Level 1
Inputs

Level 2
Inputs

Level 3
Inputs

Level 1
Inputs

Level 2

Inputs

Level 3

Inputs

Investment in auction rate securities

—

6,905

—

6,628

	Cost Basis Amount		Gross Unrealized Loss In Accumulated OCI		Fair Value
December 31, 2014
Investment in auction rate securities	$	7,425	$	520	$	6,905

December 31, 2013
Investment in auction rate securities	$	7,575	$	947	$	6,628

Interest Rate Swap Agreements

The Company has entered into swap agreements to hedge against the potential impact of increases in interest rates on its floating-rate debt instruments. Swap agreements that hedge exposures to changes in interest rates expose us to credit risk and market risk. Credit risk is the potential failure of the counterparty to perform under the terms of the swap agreement. The Company attempts to minimize this risk by entering into transactions with high-quality counterparties. Market risk is the potential adverse effect on the value of the swap agreement that results from a decline in interest rates. The market risk associated with interest-rate contracts is managed by establishing and monitoring parameters that limit the types and degree of market risk that may be undertaken.

At December 31, 2014, the Company had an aggregate $20.9 million notional amount of interest rate swap contracts, which have been designated as cash flow hedges, to pay fixed rates of interest and receive a floating interest rate based on LIBOR. The fixed interest rates specified in the interest rate swap contracts became effective on or about January 1, 2012. The Company’s interest rate swaps qualify for cash flow hedge accounting treatment. Unrealized gains or losses are recorded in accumulated other comprehensive income. Realized gains and losses will be recognized in interest expense, if they occur. Amounts to be received or paid under the contracts will be recognized as interest expense over the life of the contracts. There was no ineffectiveness for these swaps during the years ended December 31, 2014 and December 31, 2013.

The fair value of cash flow hedges is calculated as the present value of expected future cash flows, determined on the basis of forward interest rates and present value factors. As such, the carrying amounts for these swaps are designated to be Level 2 fair values and totaled $235,000 as of December 31, 2014. The carrying value of these swaps is included in Other Long-Term Liabilities on the accompanying Consolidated Balance Sheet as of December 31, 2014.

As of December 31, 2014 the Company was party to derivative financial instruments, as described in the following table (in thousands):

Agreement	Current Notional Amount		Fixed Interest Rate		Underlying Rate	Expiration Date	Fair Value
Interest Rate Swap	$	1,708		5.075%	3 month LIBOR	July 1, 2015	$	(17	)
Interest Rate Swap		3,528		5.075%	3 month LIBOR	July 1, 2015		(36	)
Interest Rate Swap		4,368		5.38%	1 month LIBOR	June 29, 2015		(52	)
Interest Rate Swap		672		5.29%	1 month LIBOR	June 30, 2015		(8	)
Interest Rate Swap		1,288		5.29%	1 month LIBOR	June 30, 2015		(15	)
Interest Rate Swap		6,496		5.29%	1 month LIBOR	June 30, 2015		(75	)
Interest Rate Swap		560		5.29%	1 month LIBOR	June 30, 2015		(6	)
Interest Rate Swap		2,251		5.29%	1 month LIBOR	June 30, 2015		(26	)

Fair values of derivative instruments are on the accompanying Consolidated Balance Sheet as follows (in thousands):

		Fair Value at
Derivative Liabilities Designated as Hedging Instruments	Balance Sheet Location	December 31, 2014		December 31, 2013

Interest Rate Swaps	Other Long-Term Liabilities	$	235	$	1,024

(in thousands)	Gain (Loss) Recognized in OCI on Derivatives (Effective Portion) during the Year Ended				Location of Loss	Loss Reclassified from Accumulated OCI into Income (Effective Portion) during the Year Ended
	December 31, 2014		December 31, 2013		Reclassified into Income	December 31, 2014			December 31, 2013
Interest rate swaps	$	789	$	892	Interest Expense	$	(196	)	$	(290	)

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Note 10 - Leasing Activities

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Leases of Lessee Disclosure [Text Block]

10. LEASING ACTIVITIES:

Vehicle Leases as Lessee

The Company leases vehicles, as lessee, primarily over periods ranging from one to ten years under operating lease and capital lease arrangements. Generally, the Company is required to incur all operating costs and pay a minimum rental. The Company guarantees the residual value of vehicles under operating lease and capital lease arrangements. At December 31, 2014, the Company guaranteed vehicle residual values of $1.3 million under operating lease arrangements and $22.8 million under capital lease arrangements. Historically, the Company purchases these vehicles at the end of the lease term and recognizes a gain on the subsequent sale of the vehicle. The residual values are not reflected in the future minimum lease payments for operating leases. Vehicle lease expenses were approximately $4.1 million for the year ended December 31, 2014, $2.3 million for the year ended December 31, 2013, and $2.8 million for the year ended December 31, 2012.

As discussed below, these vehicles are then subleased by the Company to customers under various agreements. Future minimum sublease rentals to be received by the Company under non-cancelable subleases, as described below, are $54.0 million.

Future minimum lease payments under capital and non-cancelable vehicle leases as of December 31, 2014, are as follows (in thousands):

	Capital Leases			Operating Leases
2015	$	12,903		$	1,257
2016		11,176			447
2017		12,549			131
2018		9,113			73
2019		6,818			28
Thereafter		10,051			—

Total minimum lease payments	$	62,610		$	1,936
Less amount representing interest		(5,360	)
Present value of net minimum capital lease payments		57,250
Less current portion		(11,231	)
Obligations under capital leases less current portion	$	46,019

Customer Vehicle Leases as Lessor

The Company leases both owned and leased vehicles to customers, through PacLease and Idealease, primarily over periods of one to ten years under operating lease arrangements, which require a minimum rental payment and a contingent rental payment based on mileage. Rental income during the year ended December 31, 2014, consisted of minimum rental payments of approximately $154.8 million and contingent rental payments of $24.5 million. Rental income during the year ended December 31, 2013, consisted of minimum rental payments of approximately $112.0 million and contingent rental payments of $18.1 million. Rental income during the year ended December 31, 2012, consisted of minimum rental payments of approximately $86.3 million and contingent rental payments of $13.8 million. Minimum rental payments to be received for non-cancelable leases and subleases in effect at December 31, 2014, are as follows (in thousands):

2015	$	103,992
2016		91,383
2017		73,073
2018		51,156
2019		31,109
Thereafter		18,550

Total	$	369,263

As of December 31, 2014, the Company had $512.1 million of lease vehicles included in property and equipment, net of accumulated depreciation of $185.0 million. As of December 31, 2013, the Company had $405.2 million of lease vehicles included in property and equipment, net of accumulated depreciation of $142.4 million.

Other Leases - Land and Buildings

The Company leases various assets under operating leases with expiration dates ranging from January 2015 through April 2027. Monthly rental payments range from approximately $275 per month to $64,609 per month. Rental expense was $12.8 million for the year ended December 31, 2014, $9.1 million for the year ended December 31, 2013, and $6.8 million for the year ended December 31, 2012. Future minimum lease payments under non-cancelable leases at December 31, 2014, are as follows (in thousands):

2015	$	11,640
2016		8,664
2017		5,888
2018		4,461
2019		3,315
Thereafter		9,426

Total	$	43,394

Note 11 - Share Based Compensation and Employee Benefit Plans

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

11. SHARE BASED COMPENSATION AND EMPLOYEE BENEFIT PLANS:

Employee Stock Purchase Plan

The Company has an Employee Stock Purchase Plan that allows eligible employees to contribute up to $10,625 of their base earnings every six months toward the semi-annual purchase of the Company’s Class A Common Stock. The employee’s purchase price is 85% of the lesser of the closing price of the Class A Common Stock on the first business day or the last business day of the semi-annual offering period, as reported by The NASDAQ Global Select Market. Employees may purchase shares having a fair market value of up to $25,000 (measured as of the first day of each semi-annual offering period) for each calendar year. Under the Employee Stock Purchase Plan, there are approximately 250,500 shares remaining of the 900,000 shares of the Company’s Class A Common Stock that have been reserved for issuance. The Company issued 64,090 shares under the Employee Stock Purchase Plan during the year ended December 31, 2014 and 79,681 shares during the year ended December 31, 2013. Of the 6,297 employees eligible to participate, 837 elected to participate in the plan as of December 31, 2014.

Non-Employee Director Stock Option Plan

On May 16, 2006, the Board of Directors and shareholders adopted the Rush Enterprises, Inc. 2006 Non-Employee Director Stock Option Plan (the “Director Plan”), reserving 1,500,000 shares of Class A Common Stock for issuance upon exercise of any awards granted under the plan. This Director Plan was Amended and Restated on May 20, 2008 to expand the type of award that may be granted under the plan to include Class A Common Stock awards. The Director Plan was also amended on May 18, 2010 to reduce the number of shares reserved for issuance under the plan by 1,000,000 shares of Class A Common Stock.

The Director Plan is designed to attract and retain highly qualified non-employee directors. Prior to 2008, each non-employee director received options to purchase 20,000 shares of the Company’s Class A Common Stock upon their respective date of appointment and each year on the date that they are elected or reelected by the shareholders to serve on the Board of Directors. Each option has a ten year term from the grant date and vested immediately. Currently, each non-employee director receives a grant of the Company’s Class A Common Stock equivalent to a compensation value of $125,000. In 2013, three non-employee directors received a grant of 4,512 shares of the Company’s Class A Common Stock and one non-employee director received a grant of 2,707 shares of the Company’s Class A Common Stock and $50,000 cash, for total compensation equivalent to $125,000. In 2014, four non-employee directors received a grant of 3,877 shares of the Company’s Class A Common Stock, one non-employee director received a grant of 3,101 shares of the Company’s Class A Common Stock and $25,000 cash, for total compensation equivalent to $125,000, and one non-employee director received a grant of 2,326 shares of the Company’s Class A Common Stock and $50,000 cash, for total compensation equivalent to $125,000. Under the Director Plan, there are approximately 218,000 shares remaining for issuance of the 500,000 shares of the Company’s Class A Common Stock that have been reserved for issuance. The Company granted 20,935 shares of Class A Common Stock under the Director Plan during the year ended December 31, 2014 and 16,243 shares of Class A Common Stock under the Director Plan during the year ended December 31, 2013.

Employee Incentive Plans

In May 2007, the Board of Directors and shareholders adopted the Rush Enterprises, Inc. 2007 Long-Term Incentive Plan (the “2007 Incentive Plan”). The 2007 Incentive Plan provides for the grant of stock options (which may be nonqualified stock options or incentive stock options for tax purposes), stock appreciation rights issued independent of or in tandem with such options (“SARs”), restricted stock awards and performance awards. The 2007 Incentive Plan replaced the Rush Enterprises, Inc. Long-Term Incentive Plan (“Incentive Plan”) effective May 22, 2007. The 2007 Incentive Plan was Amended and Restated on May 20, 2014 to increase the number of shares available for issuance under the plan to 6,050,000 shares of Class A Common Stock and 1,450,000 shares of Class B Common Stock.

The aggregate number of shares of common stock subject to stock options or SARs that may be granted to any one participant in any year under the 2007 Incentive Plan is 100,000 shares of Class A Common Stock or 100,000 shares of Class B Common Stock. Each option, granted pursuant to the 2007 Incentive Plan, has a ten year term from the grant date and vests in three equal annual installments beginning on the third anniversary of the grant date. The Company has 6,050,000 shares of Class A Common Stock and 1,450,000 shares of Class B Common Stock reserved for issuance upon exercise of any awards granted under the Company’s 2007 Incentive Plan. As of December 31, 2014, approximately 1,805,000 shares of Class A Common Stock and 1,013,000 shares of Class B Common Stock are available for issuance upon exercise of any awards granted under the Company’s 2007 Incentive Plan. The Company issues new shares of its Class A or Class B Common Stock upon the exercise of stock options or vesting of restricted stock units. During the year ended December 31, 2014, the Company granted 459,058 options to purchase Class A Common Stock, 25,550 restricted Class A Common Stock units and 207,370 restricted Class B Common Stock units under the 2007 Incentive Plan. During the year ended December 31, 2013, the Company granted 400,633 options to purchase Class A Common Stock and 241,930 restricted Class A Common Stock units under the 2007 Incentive Plan.

Valuation and Expense Information

Stock-based compensation expense related to stock options, restricted stock awards, restricted stock units and employee stock purchases was $11.3 million for the year ended December 31, 2014, $8.6 million for the year ended December 31, 2013, and $7.3 million for the year ended December 31, 2012.

Cash received from options exercised and shares purchased under all share-based payment arrangements was $12.5 million for the year ended December 31, 2014, $10.0 million for the year ended December 31, 2013, and $5.1 million for the year ended December 31, 2012.

A summary of the Company’s stock option activity and related information for the year ended December 31, 2014, follows:

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
Options	Shares			Price		Life (in Years)		Value

Balance of Outstanding Options at January 1, 2014		3,642,156		$	16.41
Granted		459,058			30.27
Exercised		(902,238	)		12.21
Forfeited		(16,000	)		26.86

Balance of Outstanding Options at December 31, 2014		3,182,976		$	19.55		6.02	$	39,792,666

Expected to vest after December 31, 2014		1,950,078		$	23.61		7.49	$	16,465,041
Vested and exercisable at December 31, 2014		1,114,912		$	12.47		3.43	$	22,420,955

The aggregate intrinsic value in the preceding table represents the total pretax intrinsic value, based on the weighted-average of the closing price as of December 31, 2014, of the Company’s Class A common of $32.05. The total intrinsic value of options exercised was $18.7 million during the year ended December 31, 2014, $10.5 million during the year ended December 31, 2013, and $5.6 million during the year ended December 31, 2012.

A summary of the status of the number of shares underlying Company’s non-vested stock options as of December 31, 2014, and changes during the year ended December 31, 2014, follows:

				Weighted
				Average
	Number of			Grant Date
Non-vested Shares	Shares			Fair Value

Non-vested at January 1, 2014		2,152,940		$	9.13
Granted		459,058			15.86
Vested		(557,934	)		5.97
Forfeited		(16,000	)		13.43

Non-vested at December 31, 2014		2,038,064		$	11.48

The total fair value of vested options was $3.3 million during the year ended December 31, 2014, $3.4 million during the year ended December 31, 2013, and $2.4 million during the year ended December 31, 2012. The weighted-average grant date fair value of options granted was $15.86 per share during the year ended December 31, 2014, $12.69 per share during the year ended December 31, 2013, and $10.95 per share during the year ended December 31, 2012.

Stock Awards

The Company granted restricted stock units to its employees under the 2007 Incentive Plan and unrestricted stock awards to its non-employee directors under the Director Plan during the year ended December 31, 2014. The shares granted to employees vest in three equal installments on the first, second and third anniversary of the grant date and are forfeited in the event the recipient’s employment or relationship with the Company is terminated prior to vesting. The fair value of the restricted stock awards and units to the Company’s employees is amortized to expense on a straight-line basis over the restricted stock’s vesting period. The shares granted to non-employee directors are expensed on the grant date.

The following table presents a summary of the Company’s non-vested restricted stock awards and non-vested restricted stock units outstanding at December 31, 2014:

				Weighted
				Average				Weighted
				Remaining		Aggregate		Average
				Contractual		Intrinsic		Grant Date
Stock Awards and Units	Shares			Life (in Years)		Value		Fair Value

Outstanding Non-vested shares at January 1, 2014		302,015						$	21.81
Granted		253,855							26.81
Vested		(152,520	)						22.95
Forfeited		(1,000	)						25.76

Outstanding Non-vested at December 31, 2014		402,350			8.71	$	11,553,831	$	24.53

Expected to vest after December 31, 2014		398,268			8.71	$	11,459,524

The total fair value of the shares issued upon the vesting of stock awards during the year ended December 31, 2013 was $3.5 million. The weighted-average grant date fair value of stock awards and units granted was $26.81 per share during the year ended December 31, 2014, $22.12 per share during the year ended December 31, 2013, and $21.98 per share during the year ended December 31, 2012.

As of December 31, 2014, there was $15.8 million of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the Incentive Plan and the 2007 Incentive Plan. That cost is expected to be recognized over a weighted-average period of 2.7 years.

Defined Contribution Plan

The Company has a defined contribution plan (the “Rush 401k Plan”), which is available to all Company employees and the employees of certain affiliates. Each employee who has completed 90 days of continuous service is entitled to enter the Rush 401k Plan on the first day of the following month. Participating employees may contribute from 1% to 50% of total gross compensation. However, certain highly compensated employees are limited to a maximum contribution of 15% of total gross compensation. Effective January 1, 2011, for the first 10% of an employee’s contribution, the Company contributed an amount equal to 15% of the employees’ contributions for those employees with less than five years of service and an amount equal to 30% of the employees’ contributions for those employees with more than five years of service. Effective February 1, 2012, for the first 10% of an employee’s contribution, the Company contributed an amount equal to 20% of the employees’ contributions for those employees with less than five years of service and an amount equal to 40% of the employees’ contributions for those employees with more than five years of service. The Company incurred expenses related to the Rush 401k Plan of approximately $5.2 million during the year ended December 31, 2014, $4.4 million during the year ended December 31, 2013, and $3.7 million during the year ended December 31, 2012.

Deferred Compensation Plan

On November 6, 2010 the Board of Directors of the Company adopted the Rush Enterprises, Inc. Deferred Compensation Plan (the “Deferred Compensation Plan”) pursuant to which selected employees and directors may elect to defer a portion of their annual compensation. The Deferred Compensation Plan also provides the Company with the discretion to make matching contributions to participants’ accounts. The Company established a rabbi trust to finance obligations under the Deferred Compensation Plan with corporate-owned variable life insurance contracts. Participants are 100% vested in their respective deferrals and the earnings thereon. The first deferral election period began on January 1, 2011. The Company’s liability related to the Deferred Compensation Plan was $3.0 million on December 31, 2014 and $1.7 million on December 31, 2013. The related cash surrender value of the life insurance contracts was $2.9 million on December 31, 2014 and $1.6 million on December 31, 2013.

The Company currently does not provide any post-retirement benefits nor does it provide any post-employment benefits.

Note 12 - Earnings Per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

12. EARNINGS PER SHARE:

Basic earnings per share (“EPS”) were computed by dividing income from continuing operations by the weighted average number of shares of common stock outstanding during the period. Diluted EPS differs from basic EPS due to the assumed conversions of potentially dilutive options and restricted shares that were outstanding during the period. The Company’s Class A Common Stock and Class B Common Stock have equal claims on earnings of the Company. The following is a reconciliation of the numerators and the denominators of the basic and diluted per share computations for income from continuing operations (in thousands, except per share amounts):

	2014		2013		2012

Numerator-
Numerator for basic and diluted earnings per share -
Net income available to common shareholders	$	79,957	$	49,217	$	62,455
Denominator-
Denominator for basic earnings per share – weighted average shares		39,783		39,405		38,643
Effect of dilutive securities-
Employee and director stock options and restricted share awards		1,111		1,101		1,045
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions		40,894		40,506		39,688
Basic earnings per common share	$	2.01	$	1.25	$	1.62
Diluted earnings per common share and common share equivalents	$	1.96	$	1.22	$	1.57

Options to purchase shares of common stock that were outstanding for the years ended December 31, 2014, 2013 and 2012 that were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive are as follows (in thousands):

	2014		2013		2012
Options		482		928		1,124
Total anti-dilutive securities		482		928		1,124

Note 13 - Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

13. INCOME TAXES:

Provision for Income Taxes

The tax provisions are summarized as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012

Current provision-
Federal	$	21,826	$	7,755	$	8,647
State		3,531		2,008		1,917

		25,357		9,763		10,564

Deferred provision-
Federal		23,243		20,470		25,752
State		1,986		1,611		2,412

		25,229		22,081		28,164

Provision (benefit) for income taxes	$	50,586	$	31,844	$	38,728

A reconciliation of taxes based on the federal statutory rates and the provisions (benefits) for income taxes are summarized as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012

Income taxes at the federal statutory rate	$	45,691	$	28,371	$	35,414
State income taxes, net of federal benefit		3,398		2,259		2,753
Tax effect of permanent differences		1,069		802		766
Other, net		428		412		(205	)

Provision for income taxes	$	50,586	$	31,844	$	38,728

The components of income taxes for other than continuing operations consisted of the following (in thousands):

	Year Ended December 31,
	2014			2013			2012
Income tax expense (benefit) related to components of other comprehensive income:
Change in fair value of cash flow swaps	$	308		$	338		$	133
Change in fair value of available-for-sale securities		166		–				(9	)
Total	$	474		$	338		$	124

Paid in capital – stock based compensation	$	(5,207	)	$	(2,566	)	$	(1,668	)

The following summarizes the components of deferred tax assets and liabilities included in the balance sheet (in thousands):

	December 31,
	2014			2013
Current:
Deferred tax assets:
Inventory	$	6,786		$	4,673
Accounts receivable		304			304
Capital lease obligations		4,217			3,821
Stock options		1,764			1,474
Accrued liabilities		3,935			4,531
State net operating loss carry forward		1,436			1,071
State tax credit		354			403
		18,796			16,277
Valuation allowance		(409	)	–
Current deferred tax asset	$	18,387		$	16,277

Non-Current:
Deferred tax assets:
Capital lease obligations	$	16,965		$	13,002
Stock options		7,056			5,894
Other		1,839			1,821
		25,860			20,717
Deferred tax liabilities:
Difference between book and tax basis-
Depreciation and amortization		(201,495	)		(168,539	)

Net non-current tax liability	$	(175,635	)	$	(147,822	)

At December 31, 2014, the Company had approximately $35.28 million in state net operating loss carry forwards that expire from 2014 through 2034. The Company has a valuation allowance of $409,000 associated with U.S. state net operating losses. The valuation allowance increased by $409,000 due to uncertainty regarding the ability to utilize the losses.

The Company had unrecognized income tax benefits totaling $1.5 million as a component of accrued liabilities at December 31, 2014, and $1.0 million at December 31, 2013, the total of which, if recognized, would impact the Company’s effective tax rate. An unfavorable settlement would require a charge to income tax expense and a favorable resolution would be recognized as a reduction to income tax expense. The Company recognizes interest accrued related to unrecognized tax benefits in income tax expense. During the years ended December 31, 2014, 2013 and 2012, the Company recognized approximately $17,500, $32,000, and $2,300 in interest. No amounts were accrued for penalties. The Company had approximately $98,500, $81,000 and $49,000 for the payment of interest accrued at December 31, 2014, 2013 and 2012, respectively.

The Company does not anticipate a significant change in the amount of unrecognized tax benefits in the next 12 months. As of December 31, 2014, the tax years ended December 31, 2011 through 2014 remained subject to audit by federal tax authorities and the tax years ended December 31, 2010 through 2014, remained subject to audit by state tax authorities.

A reconciliation of the change in the unrecognized tax benefits is as follows (in thousands):

	2014			2013			2012
Unrecognized tax benefits at beginning of period	$	1,545		$	1,409		$	1,337
Gross increases – tax positions in current year		815			466			358
Gross increases – tax positions in a prior year		−			−			267
Reductions due to lapse of statute of limitations		(273	)		(330	)		(553	)
Unrecognized tax benefits at end of period	$	2,087		$	1,545		$	1,409

Note 14 - Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

14. COMMITMENTS AND CONTINGENCIES:

From time to time, the Company is involved in litigation arising out of its operations in the ordinary course of business. The Company maintains liability insurance, including product liability coverage, in amounts deemed adequate by management. To date, aggregate costs to us for claims, including product liability actions, have not been material. However, an uninsured or partially insured claim, or claim for which indemnification is not available, could have a material adverse effect on the Company’s financial condition or results of operations. The Company believes that there are no claims or litigation pending, the outcome of which could have a material adverse effect on its financial position or results of operations. However, due to the inherent uncertainty of litigation, there can be no assurance that the resolution of any particular claim or proceeding would not have a material adverse effect on the Company’s financial condition or results of operations for the fiscal period in which such resolution occurred.

The Company has purchase obligations of $49.0 million at December 31, 2014 related to the Company’s construction contracts for facilities in San Antonio, Dallas, and Odessa, Texas, Whittier, California, Chicago, Illinois, Cincinnati and Cleveland, Ohio and Denver, Colorado. The Company also has contractual obligations of $22.5 million with IBM for integration and management services related to the SAP enterprise software and dealership management system implementation and SAP America, Inc. with respect to the Software License Agreement for the SAP enterprise software and dealership management system.

Note 15 - Acquisitions

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combination Disclosure [Text Block]

15. ACQUISITIONS:

All of the following acquisitions, unless otherwise noted, were considered business combinations accounted for under ASC 805 “Business Combinations.” Pro forma information is not included in accordance with ASC 805 since no acquisitions were considered material individually or in the aggregate.

As the value of certain assets and liabilities acquired in 2014 are preliminary in nature, they are subject to adjustment as additional information is obtained about the facts and circumstances that existed at the acquisition date. The property and equipment, inventory and valuation of intangibles is subject to change during the purchase price allocation period.

On December 8, 2014, the Company acquired certain assets of North Florida Truck Parts, Inc. which included a commercial parts and service facility in Lake City, Florida. The Lake City location is operating as a full-service Rush Truck Center and offers commercial vehicles manufactured by Peterbilt. The transaction was valued at approximately $1.6 million, with the purchase price paid in cash. The preliminary purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Goodwill	$	1,048
Property and equipment		448
Inventory		50
Accounts receivable		20

Total	$	1,566

All of the goodwill acquired in the North Florida Truck Parts, Inc. acquisition will be amortized over 15 years for tax purposes.

On November 3, 2014, the Company acquired certain assets of House of Trucks, Inc. which included used commercial vehicle facilities in Willowbrook and Wilmington, Illinois. The transaction, including real estate, was valued at approximately $6.9 million, with the purchase price paid in cash. The preliminary purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Goodwill	$	1,968
Inventory		2,512
Property and equipment, including real estate		2,416
Prepaid expenses		6
Accrued expenses		(28	)

Total	$	6,874

All of the goodwill acquired in the House of Trucks, Inc. acquisition will be amortized over 15 years for tax purposes.

On July 1, 2014, the Company acquired certain assets of Truck Parts Depot, Inc. which included a commercial parts and service facility in Gainesville, Georgia. The Gainesville location is operating as a full-service Rush Truck Center and offers commercial vehicles manufactured by International. The transaction was valued at approximately $500,000, with the purchase price paid in cash.

On June 25, 2014, a joint venture was established to further expand the Company’s used commercial vehicle sales network. As a result, the Company owns 50% of CCTTS, which has locations in multiple locations in California that sell used trucks. In connection with the formation of this joint venture, the Company contributed $2.2 million. CCTTS is accounted for using the equity method of accounting in accordance with ASC 323, “Investments-Equity Method and Joint Venture,” and is recorded on the Consolidated Balance Sheet in Other Assets.

In May 2014, the Company announced an agreement with 3M to pursue the design, manufacture and installation of a portfolio of compressed natural gas CNG fuel systems for use in Class 6 through 8 vehicles. The Agreement allows the Company to engineer, assemble and install CNG fuel systems utilizing 3M’s CNG tanks, as well as provide market distribution and aftermarket support. In addition to the initial $2.0 million investment for research and development, which was recorded in selling, general and administrative expense, the Company will continue to incur expenses to bring its CNG fuel system to market. The transaction did not qualify as a business combination in accordance with ASC 805, “Business Combinations.”

On January 13, 2014, the Company acquired certain assets of CIT, Inc., which did business as Chicago International Trucks, Mcgrenho L.L.C., which did business as Indy Truck Sales, and Indiana Mack Leasing, LLC; and the membership interests of Idealease of Chicago, LLC. The acquisition included International commercial truck dealerships and Idealease commercial vehicle rental and leasing businesses in Carol Stream, Chicago, Grayslake, Huntley, Joliet, Kankakee and Ottawa, Illinois, and Brazil, Gary and Indianapolis, Indiana.

The purchase price for the assets, membership interests, goodwill, franchise rights and dealership properties was approximately $146.6 million, which was paid in cash and 83,091 shares of the Company’s Class B Common Stock with a total value of $2.0 million on the date of acquisition. The operations of CIT, Inc. are included in the accompanying consolidated financial statements from the date of the acquisition. The preliminary purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Property and equipment	$	60,066
Goodwill		46,384
Franchise rights		2,442
Inventory		31,048
Accounts receivable		7,175
Prepaid expenses		750
Other		23
Accrued expenses		(1,325	)

Total	$	146,563

All of the goodwill acquired in the CIT, Inc. acquisition will be amortized over 15 years for tax purposes.

On October 28, 2013, the Company acquired certain assets of Prairie International Trucks, which operated International commercial vehicle dealerships in Champaign, Decatur, Bloomington, Quincy and Springfield, Illinois; a collision center in Champaign, Illinois and Idealease commercial lease and rental operations at the dealerships in Champaign, Decatur, Quincy and Springfield, Illinois.

The transaction was valued at approximately $9.5 million with the purchase price paid in cash. The operations of Prairie International Trucks are included in the accompanying consolidated financial statements from the date of the acquisition. The purchase price was allocated based on the fair values of the assets and liabilities at the date of acquisition as follows (in thousands):

Property and equipment	$	3,209
Goodwill		2,832
Inventory		2,174
Accounts receivable		1,401
Other		3
Accrued expenses		(23	)
Prepaid expenses		(56	)

Total	$	9,540

All of the goodwill acquired in the Prairie International Trucks acquisition will be amortized over 15 years for tax purposes.

On September 30, 2013, the Company acquired certain assets of Transauthority, Inc., Transauthority Idealease, LLC and Transauthority Idealease-Tidewater, LLC, which operated commercial vehicle dealerships and commercial vehicle leasing operations in Richmond, Suffolk, Fredericksburg and Chester, Virginia.

The transaction was valued at approximately $41.7 million, including real estate of $11.1 million. The purchase price for the assets of the business was financed under the Company’s floor plan and lease and rental truck financing arrangements with the remainder paid in cash. The operations of Transauthority, Inc., Transauthority Idealease, LLC and Transauthority Idealease-Tidewater, LLC are included in the accompanying consolidated financial statements from the date of the acquisition. The purchase price was allocated based on the fair values of the assets and liabilities at the date of acquisition as follows (in thousands):

Property and equipment	$	26,829
Goodwill		7,798
Inventory		5,177
Accounts receivable		1,554
Prepaid expenses		471
Other		66
Accrued expenses		(213	)

Total	$	41,682

All of the goodwill acquired in the Transauthority acquisition will be amortized over 15 years for tax purposes.

On July 29, 2013, the Company acquired certain assets of Midwest Truck Sales, which operated commercial vehicle dealerships in St. Peters and St. Louis, Missouri and Olathe, Kansas.

The transaction was valued at approximately $16.8 million, including real estate of $2.3 million. The purchase price for the assets of the business was financed under the Company’s floor plan and lease and rental truck financing arrangements with the remainder paid in cash. The operations of Midwest Truck Sales are included in the accompanying consolidated financial statements from the date of the acquisition. The purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Inventory	$	6,792
Goodwill		5,624
Property and equipment		4,333
Prepaid expenses		39
Other		53
Accrued expenses		(61	)

Total	$	16,780

All of the goodwill acquired in the Midwest Truck Sales acquisition will be amortized over 15 years for tax purposes.

On July 1, 2013, the Company acquired certain assets of The Larson Group, Inc., which included Ford and Mitsubishi Fuso truck franchises in Cincinnati Ohio. The transaction was valued at approximately $1.2 million, with the purchase price paid in cash.

On May 6, 2013, the Company acquired certain assets of Piedmont International Trucks, LLC, which operated commercial vehicle dealerships in Statesville, Hickory and Asheville, North Carolina. The acquisition included International and Idealease franchises. These locations are operating as Rush Truck Centers and offer commercial vehicles manufactured by International in addition to parts, service, body shop, leasing, financing and insurance capabilities.

The transaction was valued at approximately $3.5 million. The purchase price for the assets of the business was financed under the Company’s floor plan and lease and rental truck financing arrangements with the remainder paid in cash. The operations of Piedmont International Trucks, LLC are included in the accompanying consolidated financial statements from the date of the acquisition. The purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Inventory	$	1,720
Property and equipment		1,485
Prepaid expenses		10
Accounts receivable		364
Accrued expenses		(76	)

Total	$	3,503

On December 31, 2012, the Company acquired certain assets of MVI Group, which operated commercial vehicle and bus dealerships in Ohio under the names of Miami Valley International, Center City International, CCI North Coast and Buckeye Truck Centers. The acquisition included International, IC Bus, and Isuzu franchise locations in Akron, Cincinnati, Cleveland, Columbus, Dayton, Findlay and Lima, Ohio. Rush Truck Leasing now operates Idealease truck rental and leasing franchises in Cincinnati, Cleveland, Columbus, Dayton and Lima, Ohio.

The transaction, including real estate, was valued at approximately $104.5 million. The purchase price for the assets of the business was financed under the Company’s floor plan and lease and rental truck financing arrangements with the remainder paid in cash. The purchase price was allocated based on the fair values of the assets at the date of acquisition as follows (in thousands):

Property and equipment, including real estate	$	29,768
Inventory		51,476
Accounts receivable		5,638
Prepaid expenses		488
Accrued expenses		(200	)
Goodwill		17,365

Total	$	104,535

All of the goodwill acquired in the MVI Group acquisition will be amortized over 15 years for tax purposes.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1497-128463

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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+ Details

Note 16 - Accumulated Other Comprehensive Income

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Comprehensive Income (Loss) Note [Text Block]

16. ACCUMULATED OTHER COMPREHENSIVE INCOME

The following table shows the components of accumulated other comprehensive loss (in thousands):

	Cash Flow Swaps			Available for Sale Securities			Total
Balance as of December 31, 2012	$	(1,178	)	$	(578	)	$	(1,756	)
Changes in fair value		892			−			892
Income tax expense		(338	)		−			(338	)
Balance as of December 31, 2013	$	(624	)	$	(578	)	$	(1,202	)
Changes in fair value		789			427			1,216
Income tax expense		(308	)		(166	)		(474	)
Balance as of December 31, 2014	$	(143	)	$	(317	)	$	(460	)

The following table shows the amount of loss reclassified from accumulated other comprehensive loss into earnings (in thousands):

	Year Ended
	December 31, 2014			December 31, 2013			December 31, 2012
Losses on cash flow swaps to:
Interest expense	$	(196	)	$	(290	)		(393	)
Income tax benefit		76			113			153
Total reclassifications	$	(120	)	$	(177	)		(240	)

- Definition

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Glossary Reclassification Adjustments
-URI http://asc.fasb.org/extlink&oid=6522872

+ Details

Note 17 - Unaudited Quarterly Financial Data

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

17. UNAUDITED QUARTERLY FINANCIAL DATA:

(In thousands, except per share amounts.)

	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
2014

Revenues	$	958,667	$	1,182,461	$	1,241,022	$	1,345,206
Gross profit		165,925		193,349		198,739		198,033
Operating income		22,746		34,932		41,018		43,045
Income before income taxes		19,615		32,389		38,329		40,210
Net income	$	12,014	$	19,838	$	23,478	$	24,627

Earnings per share:
Basic	$	0.31	$	0.50	$	0.59	$	0.62
Diluted	$	0.30	$	0.49	$	0.57	$	0.60

Note 18 - Segments

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

18. SEGMENTS:

The Company currently has one reportable business segment - the Truck Segment. The Truck Segment includes the Company’s operation of a network of commercial vehicle dealerships that provide an integrated one-stop source for the commercial vehicle needs of its customers, including retail sales of new and used commercial vehicles; aftermarket parts, service and body shop facilities; and a wide array of financial services, including the financing of new and used commercial vehicle purchases, insurance products and truck leasing and rentals. The commercial vehicle dealerships are deemed a single reporting unit because they have similar economic characteristics. The Company’s chief operating decision maker considers the entire Truck Segment, not individual dealerships, when making decisions about resources to be allocated to the segment and assess its performance.

The Company also has revenues attributable to three other operating segments. These segments include a retail tire company, an insurance agency and a guest ranch operation and are included in the All Other column below. None of these segments has ever met any of the quantitative thresholds for determining reportable segments.

The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The Company evaluates performance based on income before income taxes, not including extraordinary items.

The Company accounts for intersegment sales and transfers as if the sales or transfers were to third parties, that is, at current market prices. There were no material intersegment sales during the years ended December 31, 2014, 2013 or 2012.

The following table contains summarized information about reportable segment revenue, segment income or loss from continuing operations and segment assets for the periods ended December 31, 2014, 2013 and 2012 (in thousands):

	Truck		All
	Segment		Other			Totals
2014
Revenues from external customers	$	4,708,978	$	18,378		$	4,727,356
Interest income		239	–				239
Interest expense		11,278		159			11,437
Depreciation and amortization		40,283		503			40,786
Segment income (loss) from continuing operations before taxes		131,035		(492	)		130,543
Segment assets		2,664,405		29,857			2,694,262
Goodwill		262,585		2,560			265,145
Expenditures for segment assets		262,613		510			263,123

2013
Revenues from external customers	$	3,365, 900	$	18,805		$	3,384,705
Interest income		41	–				41
Interest expense		10,559		175			10,734
Depreciation and amortization		29,403		522			29,925
Segment income (loss) from continuing operations before taxes		81,856		(795	)		81,061
Segment assets		2,140,008		27,790			2,167,798
Goodwill		212,904		2,560			215,464
Expenditures for segment assets		191,016		568			191,584

2012
Revenues from external customers	$	3,072,092	$	18,475		$	3,090,567
Interest income		21	–				21
Interest expense		12,830		208			13,038
Depreciation and amortization		24,482		534			25,016
Segment income (loss) from continuingoperations before taxes		102,392		(1,209	)		101,183
Segment assets		1,855,431		26,135			1,881,566
Goodwill		195,697		2,560			198,257
Expenditures for segment assets		170,436		515			170,951

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Note 19 - Asset Impairment

12 Months Ended

Dec. 31, 2014

Disclosure Text Block Supplement [Abstract]

Asset Impairment Charges [Text Block]

19. ASSET IMPAIRMENT:

During the fourth quarter of 2014, the Company initiated a plan to sell its corporate aircraft and met all of the initial criteria of ASC 360, “Property, Plant and Equipment” to classify the corporate asset as an asset held for sale. It was determined that the carrying value of the corporate aircraft was no longer recoverable, and the Company recognized a $3.4 million in pre-tax non-cash asset impairment charge during the twelve months ended December 31, 2014. As a result, the Company adjusted the carrying value of its corporate aircraft to its estimated fair market value less costs to sell in accordance with ASC 820, “Fair Value Measurement.” The impairment loss is included in depreciation and amortization expense as of December 31, 2014, on the Consolidated Statements of Income. At December 31, 2014, the corporate aircraft is presented on the Consolidated Balance Sheets as a current asset in asset held for sale and the related debt is presented in current liabilities in liabilities directly associated with asset held for sale. Depreciation will not be recorded on the corporate aircraft during the period in which it is classified as held for sale. At December 31, 2013, the corporate aircraft is presented on the Consolidated Balance Sheets as a non-current asset in property, plant and equipment at a cost of $9.9 million, net of accumulated depreciation of $3.9 million, and the related debt is presented in both current liabilities in the amount of $1.0 million and non-current liabilities in the amount of $6.2 million. The asset is reported under the Truck Segment.

Note 20 - Related Party Transactions

12 Months Ended

Dec. 31, 2014

20. RELATED PARTY TRANSACTIONS:

During the year ended December 31, 2014, the Company entered into a loan agreement with CCTTS, a related party, that provides for advances up to $10.0 million to finance commercial vehicle inventory. Borrowings under this loan agreement bear interest at the three month LIBOR rate plus 4.0% and the interest is payable monthly. Amounts advanced under the loan agreement are due when the related commercial vehicle inventory is sold by the related party. On December 31, 2014, the Company had a $8.2 million receivable under the loan agreement.

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References + Details

Accounting Policies, by Policy (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

	2014			2013			Estimated Life (Years)
Land	$	98,033		$	81,196			–
Buildings and improvements		233,742			205,778		31	–	39
Leasehold improvements		27,100			25,681		2	–	39
Machinery and shop equipment		48,988			42,274		5	–	20
Furniture, fixtures and computers		57,730			45,723		3	–	15
Transportation equipment		47,758			45,005		2	–	15
Lease and rental vehicles		697,147			547,557		2	–	8
Construction in progress		39,775			6,000
Accumulated depreciation and amortization		(327,193	)		(259,551	)

Total	$	923,080		$	739,663

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

Stock Based Compensation

	2014		2013		2012
Expected stock volatility		51.51%		49.59%		53.64%
Weighted-average stock volatility		51.51%		49.59%		53.64%
Expected dividend yield		0.0%		0.0%		0.0%
Risk-free interest rate		2.14%		1.22%		1.11%
Expected life (years)		6.5		6.5		5.0
Weighted-average fair value of stock options granted	$	15.86	$	12.69	$	10.95

Goodwill and Intangible Assets, Policy [Policy Text Block]

Goodwill

The following table sets forth the change in the carrying amount of goodwill for the Company for the years ended December 31, 2014 and 2013 (in thousands):

Balance December 31, 2012	$	198,257
Acquisitions		17,182
Adjustment		25
Balance December 31, 2013		215,464
Acquisitions		49,609
Adjustment		72
Balance December 31, 2014	$	265,145

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

Use of Estimates, Policy [Policy Text Block]

Estimates in Financial Statements

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]

Allowance for Doubtful Receivables and Repossession Losses

Inventory, Policy [Policy Text Block]

Inventories

Intangible Assets, Finite-Lived, Policy [Policy Text Block]

Other Assets

Income Tax, Policy [Policy Text Block]

Income Taxes

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition Policies

Cost of Sales, Policy [Policy Text Block]

Cost of Sales

Sales Taxes Policy [Policy Text Block]

Taxes Assessed by a Governmental Authority

The Company accounts for sales taxes assessed by a governmental authority, that are directly imposed on a revenue-producing transaction, on a net (excluded from revenues) basis.

Selling, General and Administrative Expenses, Policy [Policy Text Block]

Selling, General and Administrative Expenses

Fair Value Measurement, Policy [Policy Text Block]

Fair Value Measurements

Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Advertising Costs, Policy [Policy Text Block]

Advertising Costs

Internal Use Software, Policy [Policy Text Block]

Accounting for Internal Use Software

Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block]

Insurance

Derivatives, Policy [Policy Text Block]

Derivative Instruments and Hedging Activities

Business Combinations Policy [Policy Text Block]

Acquisitions

New Accounting Pronouncements, Policy [Policy Text Block]

New Accounting Pronouncements

Note 2 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

	2014			2013			Estimated Life (Years)
Land	$	98,033		$	81,196			–
Buildings and improvements		233,742			205,778		31	–	39
Leasehold improvements		27,100			25,681		2	–	39
Machinery and shop equipment		48,988			42,274		5	–	20
Furniture, fixtures and computers		57,730			45,723		3	–	15
Transportation equipment		47,758			45,005		2	–	15
Lease and rental vehicles		697,147			547,557		2	–	8
Construction in progress		39,775			6,000
Accumulated depreciation and amortization		(327,193	)		(259,551	)

Total	$	923,080		$	739,663

Schedule of Goodwill [Table Text Block]

Balance December 31, 2012	$	198,257
Acquisitions		17,182
Adjustment		25
Balance December 31, 2013		215,464
Acquisitions		49,609
Adjustment		72
Balance December 31, 2014	$	265,145

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2014		2013		2012
Expected stock volatility		51.51%		49.59%		53.64%
Weighted-average stock volatility		51.51%		49.59%		53.64%
Expected dividend yield		0.0%		0.0%		0.0%
Risk-free interest rate		2.14%		1.22%		1.11%
Expected life (years)		6.5		6.5		5.0
Weighted-average fair value of stock options granted	$	15.86	$	12.69	$	10.95

Note 3 - Supplier and Customer Concentration (Tables)

12 Months Ended

Dec. 31, 2014

Risks and Uncertainties [Abstract]

Major Suppliers and Dealership Agreements [Table Text Block]

Manufacturer		Expiration Dates
Peterbilt		August 2015 through May 2017
International		March 2016 through May 2020
Isuzu		Indefinite
Hino		Indefinite
Ford		Indefinite
Blue Bird		August 2016
IC Bus		May 2015 through December 2017

Note 4 - Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2014

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	December 31,
	2014			2013

Trade accounts receivable from sale of vehicles	$	96,850		$	42,830
Trade receivables other than vehicles		34,404			27,387
Warranty claims		8,624			10,616
Other accounts receivable		30,928			23,700
Less allowance for bad debt and warranty receivable		(779	)		(1,240	)

Total	$	170,027		$	103,293

Note 5 - Inventories (Tables)

12 Months Ended

Dec. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	December 31,
	2014			2013

New commercial vehicles	$	749,615		$	566,396
Used commercial vehicles		84,972			75,731
Parts and accessories		186,208			157,873
Other		19,020			14,031
Less allowance		(15,711	)		(11,811	)

Total	$	1,024,104		$	802,220

Note 6 - Valuation Accounts (Tables)

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Summary of Valuation Allowance [Table Text Block]

	Balance Beginning of Year		Net Charged to Costs and Expenses		Net Write-Offs			Balance End of Year

2014
Reserve for accounts receivable	$	821	$	919	$	(1,101	)	$	639
Reserve for warranty receivable		419		411		(690	)		140
Reserve for parts inventory		4,416		2,547		(1,896	)		5,067
Reserve for commercial vehicle inventory		7,395		17,416		(14,167	)		10,644

2013
Reserve for accounts receivable	$	540	$	1,163	$	(882	)	$	821
Reserve for warranty receivable		444		626		(651	)		419
Reserve for parts inventory		3,593		2,560		(1,737	)		4,416
Reserve for commercial vehicle inventory		6,839		13,020		(12,464	)		7,395

2012
Reserve for accounts receivable	$	480	$	922	$	(862	)	$	540
Reserve for warranty receivable		480		334		(370	)		444
Reserve for parts inventory		3,406		1,796		(1,609	)		3,593
Reserve for commercial vehicle inventory		1,624		12,944		(7,729	)		6,839

Note 7 - Floor Plan Notes Payable and Lines of Credit (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Assets Pledged As Collateral [Table Text Block]

	December 31,
	2014		2013
Inventories, new and used vehicles at cost based on specific identification, net of allowance	$	823,944	$	634,732
Vehicle sale related accounts receivable		96,853		42,830

Total	$	920,797	$	677,562

Floor plan notes payable related to vehicles	$	845,977	$	593,649

Note 8 - Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

	December 31,
	2014			2013

Variable interest rate term notes	$	74,834		$	76,162
Fixed interest rate term notes		503,420			406,619

Total debt		578,254			482,781

Less: current maturities		(149,065	)		(97,243	)

Total long-term debt, net of current maturities	$	429,189		$	385,538

Schedule of Maturities of Long-term Debt [Table Text Block]

2015	$	149,065
2016		131,793
2017		105,649
2018		85,404
2019		59,168
Thereafter		47,175

Total	$	578,254

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 1
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

Note 9 - Financial Instruments and Fair Value (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

At December 31, 2014

At December 31, 2013

Level 1
Inputs

Level 2
Inputs

Level 3
Inputs

Level 1
Inputs

Level 2

Inputs

Level 3

Inputs

Investment in auction rate securities

—

6,905

—

6,628

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Cost Basis Amount		Gross Unrealized Loss In Accumulated OCI		Fair Value
December 31, 2014
Investment in auction rate securities	$	7,425	$	520	$	6,905

December 31, 2013
Investment in auction rate securities	$	7,575	$	947	$	6,628

Schedule of Derivative Instruments [Table Text Block]

Agreement	Current Notional Amount		Fixed Interest Rate		Underlying Rate	Expiration Date	Fair Value
Interest Rate Swap	$	1,708		5.075%	3 month LIBOR	July 1, 2015	$	(17	)
Interest Rate Swap		3,528		5.075%	3 month LIBOR	July 1, 2015		(36	)
Interest Rate Swap		4,368		5.38%	1 month LIBOR	June 29, 2015		(52	)
Interest Rate Swap		672		5.29%	1 month LIBOR	June 30, 2015		(8	)
Interest Rate Swap		1,288		5.29%	1 month LIBOR	June 30, 2015		(15	)
Interest Rate Swap		6,496		5.29%	1 month LIBOR	June 30, 2015		(75	)
Interest Rate Swap		560		5.29%	1 month LIBOR	June 30, 2015		(6	)
Interest Rate Swap		2,251		5.29%	1 month LIBOR	June 30, 2015		(26	)

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

		Fair Value at
Derivative Liabilities Designated as Hedging Instruments	Balance Sheet Location	December 31, 2014		December 31, 2013

Interest Rate Swaps	Other Long-Term Liabilities	$	235	$	1,024

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

(in thousands)	Gain (Loss) Recognized in OCI on Derivatives (Effective Portion) during the Year Ended				Location of Loss	Loss Reclassified from Accumulated OCI into Income (Effective Portion) during the Year Ended
	December 31, 2014		December 31, 2013		Reclassified into Income	December 31, 2014			December 31, 2013
Interest rate swaps	$	789	$	892	Interest Expense	$	(196	)	$	(290	)

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=35706170&loc=d3e41641-113959

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Note 10 - Leasing Activities (Tables)

12 Months Ended

Dec. 31, 2014

Leases [Abstract]

Schedule of Future Minimum Lease Payments for Capital Leases and Operating Leases [Table Text Block]

	Capital Leases			Operating Leases
2015	$	12,903		$	1,257
2016		11,176			447
2017		12,549			131
2018		9,113			73
2019		6,818			28
Thereafter		10,051			—

Total minimum lease payments	$	62,610		$	1,936
Less amount representing interest		(5,360	)
Present value of net minimum capital lease payments		57,250
Less current portion		(11,231	)
Obligations under capital leases less current portion	$	46,019

Schedule of Future Minimum Rental Receivable for Operating Leases [Table Text Block]

2015	$	103,992
2016		91,383
2017		73,073
2018		51,156
2019		31,109
Thereafter		18,550

Total	$	369,263

Operating Leases of Lessee Disclosure [Table Text Block]

2015	$	11,640
2016		8,664
2017		5,888
2018		4,461
2019		3,315
Thereafter		9,426

Total	$	43,394

- Definition

Tabular disclosure of a lessee's leasing arrangements including: (1) the basis on which contingent rental payments are determined, (2) the existence and terms of renewal or purchase options and escalation clauses, (3) restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.

+ References + Details

Note 11 - Share Based Compensation and Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
Options	Shares			Price		Life (in Years)		Value

Balance of Outstanding Options at January 1, 2014		3,642,156		$	16.41
Granted		459,058			30.27
Exercised		(902,238	)		12.21
Forfeited		(16,000	)		26.86

Balance of Outstanding Options at December 31, 2014		3,182,976		$	19.55		6.02	$	39,792,666

Expected to vest after December 31, 2014		1,950,078		$	23.61		7.49	$	16,465,041
Vested and exercisable at December 31, 2014		1,114,912		$	12.47		3.43	$	22,420,955

Schedule of Nonvested Share Activity [Table Text Block]

				Weighted
				Average
	Number of			Grant Date
Non-vested Shares	Shares			Fair Value

Non-vested at January 1, 2014		2,152,940		$	9.13
Granted		459,058			15.86
Vested		(557,934	)		5.97
Forfeited		(16,000	)		13.43

Non-vested at December 31, 2014		2,038,064		$	11.48

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

				Weighted
				Average				Weighted
				Remaining		Aggregate		Average
				Contractual		Intrinsic		Grant Date
Stock Awards and Units	Shares			Life (in Years)		Value		Fair Value

Outstanding Non-vested shares at January 1, 2014		302,015						$	21.81
Granted		253,855							26.81
Vested		(152,520	)						22.95
Forfeited		(1,000	)						25.76

Outstanding Non-vested at December 31, 2014		402,350			8.71	$	11,553,831	$	24.53

Expected to vest after December 31, 2014		398,268			8.71	$	11,459,524

Note 12 - Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	2014		2013		2012

Numerator-
Numerator for basic and diluted earnings per share -
Net income available to common shareholders	$	79,957	$	49,217	$	62,455
Denominator-
Denominator for basic earnings per share – weighted average shares		39,783		39,405		38,643
Effect of dilutive securities-
Employee and director stock options and restricted share awards		1,111		1,101		1,045
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions		40,894		40,506		39,688
Basic earnings per common share	$	2.01	$	1.25	$	1.62
Diluted earnings per common share and common share equivalents	$	1.96	$	1.22	$	1.57

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	2014		2013		2012
Options		482		928		1,124
Total anti-dilutive securities		482		928		1,124

Note 13 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Year Ended December 31,
	2014		2013		2012

Current provision-
Federal	$	21,826	$	7,755	$	8,647
State		3,531		2,008		1,917

		25,357		9,763		10,564

Deferred provision-
Federal		23,243		20,470		25,752
State		1,986		1,611		2,412

		25,229		22,081		28,164

Provision (benefit) for income taxes	$	50,586	$	31,844	$	38,728

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year Ended December 31,
	2014		2013		2012

Income taxes at the federal statutory rate	$	45,691	$	28,371	$	35,414
State income taxes, net of federal benefit		3,398		2,259		2,753
Tax effect of permanent differences		1,069		802		766
Other, net		428		412		(205	)

Provision for income taxes	$	50,586	$	31,844	$	38,728

Schedule of Income Taxes Related to Other Comprehensive Income [Table Text Block]

	Year Ended December 31,
	2014			2013			2012
Income tax expense (benefit) related to components of other comprehensive income:
Change in fair value of cash flow swaps	$	308		$	338		$	133
Change in fair value of available-for-sale securities		166		–				(9	)
Total	$	474		$	338		$	124

Paid in capital – stock based compensation	$	(5,207	)	$	(2,566	)	$	(1,668	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2014			2013
Current:
Deferred tax assets:
Inventory	$	6,786		$	4,673
Accounts receivable		304			304
Capital lease obligations		4,217			3,821
Stock options		1,764			1,474
Accrued liabilities		3,935			4,531
State net operating loss carry forward		1,436			1,071
State tax credit		354			403
		18,796			16,277
Valuation allowance		(409	)	–
Current deferred tax asset	$	18,387		$	16,277

Non-Current:
Deferred tax assets:
Capital lease obligations	$	16,965		$	13,002
Stock options		7,056			5,894
Other		1,839			1,821
		25,860			20,717
Deferred tax liabilities:
Difference between book and tax basis-
Depreciation and amortization		(201,495	)		(168,539	)

Net non-current tax liability	$	(175,635	)	$	(147,822	)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2014			2013			2012
Unrecognized tax benefits at beginning of period	$	1,545		$	1,409		$	1,337
Gross increases – tax positions in current year		815			466			358
Gross increases – tax positions in a prior year		−			−			267
Reductions due to lapse of statute of limitations		(273	)		(330	)		(553	)
Unrecognized tax benefits at end of period	$	2,087		$	1,545		$	1,409

Note 15 - Acquisitions (Tables)

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

Goodwill	$	1,048
Property and equipment		448
Inventory		50
Accounts receivable		20

Total	$	1,566

Goodwill	$	1,968
Inventory		2,512
Property and equipment, including real estate		2,416
Prepaid expenses		6
Accrued expenses		(28	)

Total	$	6,874

Property and equipment	$	60,066
Goodwill		46,384
Franchise rights		2,442
Inventory		31,048
Accounts receivable		7,175
Prepaid expenses		750
Other		23
Accrued expenses		(1,325	)

Total	$	146,563

Property and equipment	$	3,209
Goodwill		2,832
Inventory		2,174
Accounts receivable		1,401
Other		3
Accrued expenses		(23	)
Prepaid expenses		(56	)

Total	$	9,540

Property and equipment	$	26,829
Goodwill		7,798
Inventory		5,177
Accounts receivable		1,554
Prepaid expenses		471
Other		66
Accrued expenses		(213	)

Total	$	41,682

Inventory	$	6,792
Goodwill		5,624
Property and equipment		4,333
Prepaid expenses		39
Other		53
Accrued expenses		(61	)

Total	$	16,780

Inventory	$	1,720
Property and equipment		1,485
Prepaid expenses		10
Accounts receivable		364
Accrued expenses		(76	)

Total	$	3,503

Property and equipment, including real estate	$	29,768
Inventory		51,476
Accounts receivable		5,638
Prepaid expenses		488
Accrued expenses		(200	)
Goodwill		17,365

Total	$	104,535

Note 16 - Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2014

Reclassifications [Member]

Note 16 - Accumulated Other Comprehensive Income (Tables) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Year Ended
	December 31, 2014			December 31, 2013			December 31, 2012
Losses on cash flow swaps to:
Interest expense	$	(196	)	$	(290	)		(393	)
Income tax benefit		76			113			153
Total reclassifications	$	(120	)	$	(177	)		(240	)

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Cash Flow Swaps			Available for Sale Securities			Total
Balance as of December 31, 2012	$	(1,178	)	$	(578	)	$	(1,756	)
Changes in fair value		892			−			892
Income tax expense		(338	)		−			(338	)
Balance as of December 31, 2013	$	(624	)	$	(578	)	$	(1,202	)
Changes in fair value		789			427			1,216
Income tax expense		(308	)		(166	)		(474	)
Balance as of December 31, 2014	$	(143	)	$	(317	)	$	(460	)

Note 17 - Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
2014

Revenues	$	958,667	$	1,182,461	$	1,241,022	$	1,345,206
Gross profit		165,925		193,349		198,739		198,033
Operating income		22,746		34,932		41,018		43,045
Income before income taxes		19,615		32,389		38,329		40,210
Net income	$	12,014	$	19,838	$	23,478	$	24,627

Earnings per share:
Basic	$	0.31	$	0.50	$	0.59	$	0.62
Diluted	$	0.30	$	0.49	$	0.57	$	0.60

Note 18 - Segments (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Truck		All
	Segment		Other			Totals
2014
Revenues from external customers	$	4,708,978	$	18,378		$	4,727,356
Interest income		239	–				239
Interest expense		11,278		159			11,437
Depreciation and amortization		40,283		503			40,786
Segment income (loss) from continuing operations before taxes		131,035		(492	)		130,543
Segment assets		2,664,405		29,857			2,694,262
Goodwill		262,585		2,560			265,145
Expenditures for segment assets		262,613		510			263,123

2013
Revenues from external customers	$	3,365, 900	$	18,805		$	3,384,705
Interest income		41	–				41
Interest expense		10,559		175			10,734
Depreciation and amortization		29,403		522			29,925
Segment income (loss) from continuing operations before taxes		81,856		(795	)		81,061
Segment assets		2,140,008		27,790			2,167,798
Goodwill		212,904		2,560			215,464
Expenditures for segment assets		191,016		568			191,584

2012
Revenues from external customers	$	3,072,092	$	18,475		$	3,090,567
Interest income		21	–				21
Interest expense		12,830		208			13,038
Depreciation and amortization		24,482		534			25,016
Segment income (loss) from continuingoperations before taxes		102,392		(1,209	)		101,183
Segment assets		1,855,431		26,135			1,881,566
Goodwill		195,697		2,560			198,257
Expenditures for segment assets		170,436		515			170,951

Note 2 - Significant Accounting Policies (Details)	1 Months Ended		12 Months Ended
Note 2 - Significant Accounting Policies (Details)	May 31, 2013 USD ($)	May 30, 2013 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)
Interest Rate Swap [Member] \| Cash Flow Hedging [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Derivative Asset, Notional Amount			$ 20,900,000
SAP Enterprise Software And SAP Dealership Management System [Member] \| Sales Revenue, Net [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage			90.00%
Rush Truck Centers [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Number of Stores			101
Vehicles [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Other Property, Plant, and Equipment, Net			$ 54,800,000
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Property, Plant, and Equipment Other, Accumulated Depreciation			21,500,000
Computer Software, Intangible Asset [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Interest Costs Capitalized			244,000
Capitalized Computer Software, Net			38,500,000	$ 40,800,000
Capitalized Computer Software, Accumulated Amortization			$ 10,300,000	7,100,000
Finite-Lived Intangible Asset, Useful Life			15 years
Amortization of Intangible Assets			$ 3,200,000	3,000,000	$ 3,000,000
Former Chairman [Member]
Note 2 - Significant Accounting Policies (Details) [Line Items]
Pension and Other Postretirement Benefit Expense	$ 10,800,000	$ 10,800,000
Depreciation			115,300,000	82,300,000
Amortization			11,200,000	11,200,000
Capitalized Computer Software, Net			38,500,000
Capitalized Computer Software, Accumulated Amortization			10,300,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two			3,200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three			3,200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four			3,200,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five			3,200,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months			3,200,000
Indefinite-Lived Franchise Rights			6,900,000	4,500,000
Goodwill and Intangible Asset Impairment			0
Advertising Expense			$ 8,700,000	$ 6,800,000	$ 4,400,000

Note 2 - Significant Accounting Policies (Details) - Property and Equipment - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 98,033	$ 81,196
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	31
Lease and rental vehicles	31
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	39
Lease and rental vehicles	39
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 233,742	205,778
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	2
Lease and rental vehicles	2
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	39
Lease and rental vehicles	39
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 27,100	25,681
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	5
Lease and rental vehicles	5
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	20
Lease and rental vehicles	20
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 48,988	42,274
Furniture and Fixtures [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	3
Lease and rental vehicles	3
Furniture and Fixtures [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	15
Lease and rental vehicles	15
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 57,730	45,723
Transportation Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	2
Lease and rental vehicles	2
Transportation Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	15
Lease and rental vehicles	15
Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 47,758	45,005
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 39,775	6,000
Vehicles [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	2
Lease and rental vehicles	2
Vehicles [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Life	8
Lease and rental vehicles	8
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Lease and rental vehicles	$ 697,147	547,557
Accumulated depreciation and amortization	(327,193)	(259,551)
Total	$ 923,080	$ 739,663

Note 2 - Significant Accounting Policies (Details) - Goodwill - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Abstract]
Balance December 31, 2012	$ 215,464	$ 198,257
Acquisitions	49,609	17,182
Adjustment	72	25
Goodwill, balance	$ 265,145	$ 215,464

Note 2 - Significant Accounting Policies (Details) - Fair Value Assumption - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value Assumption [Abstract]
Expected stock volatility	51.51%	49.59%	53.64%
Weighted-average stock volatility	51.51%	49.59%	53.64%
Expected dividend yield	0.00%	0.00%	0.00%
Risk-free interest rate	2.14%	1.22%	1.11%
Expected life (years)	6 years 6 months	6 years 6 months	5 years
Weighted-average fair value of stock options granted (in Dollars per share)	$ 15.86	$ 12.69	$ 10.95

Note 3 - Supplier and Customer Concentration (Details)	12 Months Ended
Note 3 - Supplier and Customer Concentration (Details)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Sales Revenue, Goods, Net [Member] \| Product Concentration Risk [Member]
Note 3 - Supplier and Customer Concentration (Details) [Line Items]
Concentration Risk, Percentage	63.50%	65.50%	75.10%

Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements	12 Months Ended
	Dec. 31, 2014
Peterbilt [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	August 2015 through May 2017
International [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	March 2016 through May 2020
Isuzu [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	Indefinite
Hino [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	Indefinite
Ford [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	Indefinite
Blue Bird [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	August 2016
IC Bus [Member]
Note 3 - Supplier and Customer Concentration (Details) - Major Suppliers and Dealership Agreements [Line Items]
Expiration Dates, by Distributor	May 2015 through December 2017

Note 4 - Accounts Receivable (Details) - Accounts Receivable - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Trade Accounts Receivable From Sale of Vehicles [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	$ 96,850	$ 42,830
Trade Receivable Other Than Vehicles [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade receivables	34,404	27,387
Warranty claims	8,624	10,616
Other accounts receivable	30,928	23,700
Less allowance for bad debt and warranty receivable	(779)	(1,240)
Total	$ 170,027	$ 103,293

Note 5 - Inventories (Details) - Inventories - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Inventories [Abstract]
New commercial vehicles	$ 749,615	$ 566,396
Used commercial vehicles	84,972	75,731
Parts and accessories	186,208	157,873
Other	19,020	14,031
Less allowance	(15,711)	(11,811)
Total	$ 1,024,104	$ 802,220

Note 6 - Valuation Accounts (Details) - Valuation and Allowance Accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Trade Receivables [Member]
2014
Balance	$ 821	$ 540	$ 480
Net Charged to Costs and Expenses	919	1,163	922
Net Write - Offs	(1,101)	(882)	(862)
Balance	639	821	540
Allowance for Warranty Receivables from Manufacturers [Member]
2014
Balance	419	444	480
Net Charged to Costs and Expenses	411	626	334
Net Write - Offs	(690)	(651)	(370)
Balance	140	419	444
Parts Inventory [Member]
2014
Balance	4,416	3,593	3,406
Net Charged to Costs and Expenses	2,547	2,560	1,796
Net Write - Offs	(1,896)	(1,737)	(1,609)
Balance	5,067	4,416	3,593
Commercial Vehicle Inventory [Member]
2014
Balance	7,395	6,839	1,624
Net Charged to Costs and Expenses	17,416	13,020	12,944
Net Write - Offs	(14,167)	(12,464)	(7,729)
Balance	$ 10,644	$ 7,395	$ 6,839

Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
If Terminated after January 11, 2015 and On or Prior to July 11, 2015 [Member] \| GE Capital Credit Agreement [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Debt Instrument, Prepayment Processing Fee, Amount	$ 7,500,000
If Terminated After July 11, 2015[Member] \| GE Capital Credit Agreement [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Debt Instrument, Prepayment Processing Fee, Amount	$ 300,000
GE Capital Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.03%
GE Capital Credit Agreement [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 750,000,000
Debt Instrument, Interest Rate, Effective Percentage	2.28%
Debt Instrument, Working Capital Fee, Percentage	0.35%
Floor Plan Notes Payable	$ 677,800,000
Ford Motor Financing Agreement [Member] \| Prime Rate [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	3.75%
Ford Motor Financing Agreement [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	5.25%
Floor Plan Notes Payable	$ 79,400,000
Line of Credit [Member]
Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	17,500,000
Long-term Line of Credit	0
Line of Credit, Amount Pledged to Secure Letters of Credit	15,300,000
Line of Credit Facility, Remaining Borrowing Capacity	2,200,000
Floor Plan Notes Payable	$ 845,977,000	$ 593,649,000
Debt, Weighted Average Interest Rate	1.16%	1.26%

Note 7 - Floor Plan Notes Payable and Lines of Credit (Details) - Assets Pledged as Collateral - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Assets Pledged as Collateral [Abstract]
Inventories, new and used vehicles at cost based on specific identification, net of allowance	$ 823,944	$ 634,732
Vehicle sale related accounts receivable	96,853	42,830
Total	920,797	677,562
Floor plan notes payable related to vehicles	$ 845,977	$ 593,649

Note 8 - Long-term Debt (Details) - USD ($)	12 Months Ended
Note 8 - Long-term Debt (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Variable Interest Rate Notes [Member] \| Minimum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Debt Instrument, Periodic Payment	$ 1,910
Variable Interest Rate Notes [Member] \| Maximum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Debt Instrument, Periodic Payment	80,000
Fixed Interest Rate Notes [Member] \| Minimum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Debt Instrument, Periodic Payment	98
Fixed Interest Rate Notes [Member] \| Maximum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Debt Instrument, Periodic Payment	59,437
GE Capital Credit Agreement [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Long-term Debt	677,800,000
Wells Fargo Equipment Finance, Inc. Loan Agreement [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Long-term Debt	$ 82,700,000
Minimum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	1.60%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	2.42%
Maximum [Member]
Note 8 - Long-term Debt (Details) [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.00%
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	8.02%
Long-term Debt	$ 578,254,000	$ 482,781,000
Debt Instrument, Covenant, Leverage Ratio Maximum	2.50
Leverage Ratio	2.52

Note 8 - Long-term Debt (Details) - Long-term Debt - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Long-term Debt, Unclassified [Abstract]
Variable interest rate term notes	$ 74,834	$ 76,162
Fixed interest rate term notes	503,420	406,619
Total debt	578,254	482,781
Less: current maturities	(149,065)	(97,243)
Total long-term debt, net of current maturities	$ 429,189	$ 385,538

Note 8 - Long-term Debt (Details) - Debt Maturities - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Debt Maturities [Abstract]
2015	$ 149,065
2016	131,793
2017	105,649
2018	85,404
2019	59,168
Thereafter	47,175
Total	$ 578,254	$ 482,781

Note 9 - Financial Instruments and Fair Value (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2011	Dec. 31, 2013
Interest Rate Swap [Member] \| Cash Flow Hedging [Member]
Note 9 - Financial Instruments and Fair Value (Details) [Line Items]
Derivative Asset, Notional Amount		$ 20,900,000
Auction Rate Securities [Member]
Note 9 - Financial Instruments and Fair Value (Details) [Line Items]
Available-for-sale Securities		6,905,000		$ 6,628,000
Available-for-sale Securities, Amortized Cost Basis		$ 7,425,000		$ 7,575,000
Auction Rate Securities Redeemed	$ 150,000
Derivative, Basis Spread on Variable Rate		2.25%
Asset Impairment Charges			$ 1,000,000
Available-for-sale Debt Securities Gross Unrealized Gain		$ 427,000
Interest Rate Cash Flow Hedge Liability at Fair Value		$ 235,000

Note 9 - Financial Instruments and Fair Value (Details) - Investment in Auction Rate Securities - Fair Value - Auction Rate Securities [Member] - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Inputs, Level 3 [Member]
Note 9 - Financial Instruments and Fair Value (Details) - Investment in Auction Rate Securities - Fair Value [Line Items]
Investment in auction rate securities	$ 6,905	$ 6,628
Investment in auction rate securities	$ 6,905	$ 6,628

Note 9 - Financial Instruments and Fair Value (Details) - Investment in Auction Rate Securities - Auction Rate Securities [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Note 9 - Financial Instruments and Fair Value (Details) - Investment in Auction Rate Securities [Line Items]
Cost Basis Amount	$ 7,425	$ 7,575
Gross Unrealized Loss In Accumulated OCI	520	947
Fair Value	$ 6,905	$ 6,628

Note 9 - Financial Instruments and Fair Value (Details) - Derivative Financial Instruments $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($)
Interest Rate Swap Agreement 1 [Member]
Derivative [Line Items]
Current Notional Amount	$ 1,708
Fixed Interest Rate	5.075%
Expiration Date	Jul. 01, 2015
Fair Value	$ (17)
Interest Rate Swap Agreement 2 [Member]
Derivative [Line Items]
Current Notional Amount	$ 3,528
Fixed Interest Rate	5.075%
Expiration Date	Jul. 01, 2015
Fair Value	$ (36)
Interest Rate Swap Agreement 3 [Member]
Derivative [Line Items]
Current Notional Amount	$ 4,368
Fixed Interest Rate	5.38%
Expiration Date	Jun. 29, 2015
Fair Value	$ (52)
Interest Rate Swap Agreement 4 [Member]
Derivative [Line Items]
Current Notional Amount	$ 672
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (8)
Interest Rate Swap Agreement 5 [Member]
Derivative [Line Items]
Current Notional Amount	$ 1,288
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (15)
Interest Rate Swap Agreement 6 [Member]
Derivative [Line Items]
Current Notional Amount	$ 6,496
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (75)
Interest Rate Swap Agreement 7 [Member]
Derivative [Line Items]
Current Notional Amount	$ 560
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (6)
Interest Rate Swap Agreement 8 [Member]
Derivative [Line Items]
Current Notional Amount	$ 2,251
Fixed Interest Rate	5.29%
Expiration Date	Jun. 30, 2015
Fair Value	$ (26)

Note 9 - Financial Instruments and Fair Value (Details) - Fair Values of Derivative Instruments - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Swaps	$ 235	$ 1,024

Note 9 - Financial Instruments and Fair Value (Details) - Pre-tax Effect of Interest Rate Swaps - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pre-tax Effect of Interest Rate Swaps [Abstract]
Interest rate swaps	$ 789	$ 892	$ 317
Interest rate swaps	$ (196)	$ (290)	$ (393)

Note 10 - Leasing Activities (Details) - USD ($)	12 Months Ended
Note 10 - Leasing Activities (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Vehicles [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Operating Leases, Rent Expense	$ 4,100,000	$ 2,300,000	$ 2,800,000
Land and Building [Member] \| Minimum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Monthly Rental Payment, Operating Lease	275
Land and Building [Member] \| Maximum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Monthly Rental Payment, Operating Lease	64,609
Land and Building [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Operating Leases, Rent Expense	$ 12,800,000	9,100,000	6,800,000
Vehicle Leases As Lessee [Member] \| Minimum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Lease Term	1 year
Vehicle Leases As Lessee [Member] \| Maximum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Lease Term	10 years
Vehicle Leases As Lessor [Member] \| Minimum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Lease Term	1 year
Vehicle Leases As Lessor [Member] \| Maximum [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Lease Term	10 years
Vehicle Leases As Lessee [Member]
Note 10 - Leasing Activities (Details) [Line Items]
Guaranteed Residual Value under Operating Lease Arrangements	$ 1,300,000
Guaranteed Residual Value under Capital Lease Arrangements	22,800,000
Operating Leases, Rent Expense	152,967,000	109,222,000	84,174,000
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	54,000,000
Operating Leases, Income Statement, Minimum Lease Revenue	154,800,000	112,000,000	86,300,000
Operating Leases, Income Statement, Contingent Revenue	24,500,000	18,100,000	$ 13,800,000
Property Subject to or Available for Operating Lease, Net	512,100,000	405,200,000
Property Subject to or Available for Operating Lease, Accumulated Depreciation	$ 185,000,000	$ 142,400,000

Note 10 - Leasing Activities (Details) - Future Minimum Lease Payments Under Capital and Non-cancelable Vehicle Leases - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Future Minimum Lease Payments Under Capital and Non-cancelable Vehicle Leases [Abstract]
2015	$ 12,903,000
2015	1,257,000
2016	11,176,000
2016	447,000
2017	12,549,000
2017	131,000
2018	9,113,000
2018	73,000
2019	6,818,000
2019	28
Thereafter	10,051,000
Total minimum lease payments	62,610,000
Total minimum lease payments	1,936,000
Less amount representing interest	(5,360,000)
Present value of net minimum capital lease payments	57,250,000
Less current portion	(11,231,000)	$ (10,268,000)
Obligations under capital leases less current portion	$ 46,019,000	$ 35,199,000

Note 10 - Leasing Activities (Details) - Future Minimum Rental Receivable $ in Thousands	Dec. 31, 2014 USD ($)
Future Minimum Rental Receivable [Abstract]
2015	$ 103,992
2016	91,383
2017	73,073
2018	51,156
2019	31,109
Thereafter	18,550
Total	$ 369,263

Note 10 - Leasing Activities (Details) - Future Minimum Lease Payments Under Operating Leases	Dec. 31, 2014 USD ($)
Other Leases, Land and Buildings [Member]
Operating Leased Assets [Line Items]
2015	$ 11,640,000
2016	8,664,000
2017	5,888,000
2018	4,461,000
2019	3,315,000
Thereafter	9,426,000
Total	43,394,000
2015	1,257,000
2016	447,000
2017	131,000
2018	73,000
2019	28
Total	$ 1,936,000

Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - USD ($)	11 Months Ended	12 Months Ended			13 Months Ended
	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2012	May 20, 2014	May 18, 2010	May 16, 2006
Every Six Months [Member] \| Employee Stock Purchase Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount		$ 10,625
Common Class A [Member] \| Restricted Stock Units (RSUs) [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		25,550
Common Class A [Member] \| Restricted Stock Units (RSUs) [Member] \| The 2007 Long-Term Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)			241,930
Common Class A [Member] \| Shares Issued to Three Non-Employee Directors [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued (in Shares)			4,512
Common Class A [Member] \| Shares Issued to One Non-Employee Director [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued (in Shares)		3,101	2,707
Common Class A [Member] \| Shares Issued to Four Nonemployee Directors [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued (in Shares)		3,877
Common Class A [Member] \| Shares Issued to One Non-Employee Director 2 [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued (in Shares)		2,326
Common Class A [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)		218,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)		500,000
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures (in Shares)		20,935	16,243
Common Class A [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)		1,805,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)						6,050,000
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee (in Shares)		100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)		459,058
Common Class A [Member] \| The 2007 Long-Term Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)			400,633
Common Class A [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share Price (in Dollars per share)		$ 32.05
Common Class B [Member] \| Per Year [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee (in Shares)		100,000
Common Class B [Member] \| Restricted Stock Units (RSUs) [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		207,370
Common Class B [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)		1,013,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)						1,450,000
Restricted Stock Units (RSUs) [Member] \| Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Restricted Stock [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in Shares)		253,855
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value			$ 3,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)		$ 26.81
Deferred Compensation Plan [Member
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Deferred Compensation Arrangement With Individual, Vested Percentage			100.00%
Deferred Compensation Liability, Current		$ 3,000,000	$ 1,700,000
Cash Surrender Value of Life Insurance		$ 2,900,000	1,600,000
Rush 401k Plan [Member] \| Minimum [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent		1.00%
Rush 401k Plan [Member] \| Maximum [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent		50.00%
Rush 401k Plan [Member] \| Highly Compensated Employees [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent		15.00%
Rush 401k Plan [Member] \| Employees With Less Than Five Years Of Service [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	20.00%				15.00%
Rush 401k Plan [Member] \| Employees With More Than Five Years Of Service [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	40.00%				30.00%
Rush 401k Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Contribution Plan Period For Eligibility		90 days
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	10.00%				10.00%
Defined Contribution Plan, Cost Recognized		$ 5,200,000	4,400,000	$ 3,700,000
Shares Issued to One Non-Employee Director [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Payment to Non-Employee Directors		25,000	50,000
Issuance of Stock and Cash for Non-employee Director Compensation		125,000	$ 125,000
Shares Issued to One Non-Employee Director 2 [Member] \| The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Payment to Non-Employee Directors		50,000
Issuance of Stock and Cash for Non-employee Director Compensation		$ 125,000
Employee Stock Purchase Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		85.00%
Maximum Fair Value for Employee Stock Purchase Per Year		$ 25,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)		250,500
Common Stock, Capital Shares Reserved for Future Issuance (in Shares)		900,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in Shares)		64,090	79,681
Number Of Employees Eligible To Participate In Stock Purchase Plan		6,297
Number Of Employees Participating In Stock Purchase Plan		837
The 2006 Non-Employee Director Stock Option Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)								1,500,000
Reduction in Number of Shares Reserved for Issuance (in Shares)							1,000,000
Number of Shares Available for Purchase with Options by Non-Employee Director Each Year (in Shares)		20,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Amended and Restated 2007 Incentive Plan [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares)		459,058
Allocated Share-based Compensation Expense		$ 11,300,000	$ 8,600,000	7,300,000
Proceeds from Stock Options Exercised		12,500,000	10,000,000	5,100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value		18,700,000	10,500,000	5,600,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		$ 3,300,000	$ 3,400,000	$ 2,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)		$ 15.86	$ 12.69	$ 10.95
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)		$ 26.81	$ 22.12	$ 21.98
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized		$ 15,800,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 255 days

Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - Stock Option	12 Months Ended
	Dec. 31, 2014 USD ($) $ / shares shares
Stock Option [Abstract]
Outstanding options, shares \| shares	3,642,156
Outstanding options, weighted average exercise price \| $ / shares	$ 16.41
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	6 years 7 days
Expected to vest after December 31, 2014 \| shares	1,950,078
Expected to vest after December 31, 2014 \| $ / shares	$ 23.61
Expected to vest after December 31, 2014	7 years 178 days
Expected to vest after December 31, 2014 \| $	$ 16,465,041
Vested and exercisable at December 31, 2014 \| shares	1,114,912
Vested and exercisable at December 31, 2014 \| $ / shares	$ 12.47
Vested and exercisable at December 31, 2014	3 years 156 days
Vested and exercisable at December 31, 2014 \| $	$ 22,420,955
Granted \| shares	459,058
Granted \| $ / shares	$ 30.27
Exercised \| shares	(902,238)
Exercised \| $ / shares	$ 12.21
Forfeited \| shares	(16,000)
Forfeited \| $ / shares	$ 26.86
Outstanding options, shares \| shares	3,182,976
Outstanding options, weighted average exercise price \| $ / shares	$ 19.55
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	6 years 7 days
Outstanding options, aggregate intrinsic value \| $	$ 39,792,666

Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - Non-vested Options - $ / shares	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Non-Vested Shares [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - Non-vested Options [Line Items]
Outstanding options, shares	2,152,940
Non-vested, weighted average grant date fair value	$ 9.13
Forfeited	(16,000)
Forfeited	$ 13.43
Outstanding options, shares	2,038,064	2,152,940
Non-vested, weighted average grant date fair value	$ 11.48	$ 9.13
Outstanding options, shares	3,642,156
Granted	459,058
Granted	$ 15.86	$ 12.69	$ 10.95
Vested	(557,934)
Vested	$ 5.97
Forfeited	(16,000)
Outstanding options, shares	3,182,976	3,642,156

Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - Non-vested Restricted Stock Awards and RSU's - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock [Member]
Note 11 - Share Based Compensation and Employee Benefit Plans (Details) - Non-vested Restricted Stock Awards and RSU's [Line Items]
Stock Awards and Units, Shares	302,015
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	8 years 259 days
Weighted Average Grant Date Fair Value (in Dollars per share)	$ 21.81
Expected to vest after December 31, 2014	398,268
Expected to vest after December 31, 2014	8 years 259 days
Expected to vest after December 31, 2014 (in Dollars)	$ 11,459,524
Granted	253,855
Granted (in Dollars per share)	$ 26.81
Vested	(152,520)
Vested (in Dollars per share)	$ 22.95
Forfeited	(1,000)
Forfeited (in Dollars per share)	$ 25.76
Stock Awards and Units, Shares	402,350	302,015
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	8 years 259 days
Aggregate Intrinsic Value (in Dollars)	$ 11,553,831
Weighted Average Grant Date Fair Value (in Dollars per share)	$ 24.53	$ 21.81
Granted (in Dollars per share)	$ 26.81	$ 22.12	$ 21.98

Note 12 - Earnings Per Share (Details) - Earnings Per Share Calculation - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator for basic and diluted earnings per share -
Net income available to common shareholders (in Dollars)	$ 79,957	$ 49,217	$ 62,455
Denominator-
Denominator for basic earnings per share – weighted average shares	39,783	39,405	38,643
Effect of dilutive securities-
Employee and director stock options and restricted share awards	1,111	1,101	1,045
Denominator for diluted earnings per share - adjusted weighted average shares and assumed conversions	40,894	40,506	39,688
Basic earnings per common share (in Dollars per share)	$ 2.01	$ 1.25	$ 1.62
Diluted earnings per common share and common share equivalents (in Dollars per share)	$ 1.96	$ 1.22	$ 1.57

Note 12 - Earnings Per Share (Details) - Anti-Dilutive Securities - shares shares in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities	482	928	1,124
Anti-dilutive securities	482	928	1,124

Note 13 - Income Taxes (Details) - USD ($)	12 Months Ended
Note 13 - Income Taxes (Details) - USD ($)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 35,280,000
Deferred Tax Assets, Valuation Allowance	409,000,000,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	409,000,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1,500,000	$ 1,000,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	17,500	32,000	$ 2,300
Unrecognized Tax Benefits, Income Tax Penalties Accrued	0	0	0
Unrecognized Tax Benefits, Interest on Income Taxes Expense	$ 98,500	$ 81,000	$ 49,000

Note 13 - Income Taxes (Details) - Income Tax Expense (Benefits) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current provision-
Federal	$ 21,826	$ 7,755	$ 8,647
State	3,531	2,008	1,917
	25,357	9,763	10,564
Deferred provision-
Federal	23,243	20,470	25,752
State	1,986	1,611	2,412
	25,229	22,081	28,164
Provision (benefit) for income taxes	$ 50,586	$ 31,844	$ 38,728

Note 13 - Income Taxes (Details) - Reconciliation - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation [Abstract]
Income taxes at the federal statutory rate	$ 45,691	$ 28,371	$ 35,414
State income taxes, net of federal benefit	3,398	2,259	2,753
Tax effect of permanent differences	1,069	802	766
Other, net	428	412	(205)
Provision for income taxes	$ 50,586	$ 31,844	$ 38,728

Note 13 - Income Taxes (Details) - Components of Income Taxes Related to Other Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income tax expense (benefit) related to components of other comprehensive income:
Change in fair value of cash flow swaps	$ 308	$ 338	$ 133
Change in fair value of available-for-sale securities	166		(9)
Total	474	338	124
Paid in capital – stock based compensation	$ (5,207)	$ (2,566)	$ (1,668)

Note 13 - Income Taxes (Details) - Deferred Tax Assets and Liabilities - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets:
Inventory	$ 6,786	$ 4,673
Accounts receivable	304	304
Capital lease obligations	4,217	3,821
Stock options	1,764	1,474
Accrued liabilities	3,935	4,531
State net operating loss carry forward	1,436	1,071
State tax credit	354	403
	18,796	16,277
Valuation allowance	(409)
Current deferred tax asset	18,387	16,277
Deferred tax assets:
Capital lease obligations	16,965	13,002
Stock options	7,056	5,894
Other	1,839	1,821
	25,860	20,717
Difference between book and tax basis-
Depreciation and amortization	(201,495)	(168,539)
Net non-current tax liability	$ (175,635)	$ (147,822)

Note 13 - Income Taxes (Details) - Unrecognized Tax Benefits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Unrecognized Tax Benefits [Abstract]
Unrecognized tax benefits	$ 1,545	$ 1,409	$ 1,337
Gross increases – tax positions in current year	815	466	358
Gross increases – tax positions in a prior year			267
Reductions due to lapse of statute of limitations	(273)	(330)	(553)
Unrecognized tax benefits	$ 2,087	$ 1,545	$ 1,409

Note 14 - Commitments and Contingencies (Details) $ in Millions	Dec. 31, 2014 USD ($)
Construction Contracts for Facilities [Member]
Note 14 - Commitments and Contingencies (Details) [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$ 49.0
Information Technology Contracts [Member]
Note 14 - Commitments and Contingencies (Details) [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	$ 22.5

Note 15 - Acquisitions (Details) - USD ($) $ in Thousands												1 Months Ended	12 Months Ended
Note 15 - Acquisitions (Details) - USD ($) $ in Thousands	Dec. 08, 2014	Nov. 03, 2014	Jul. 01, 2014	Jun. 25, 2014	Jan. 13, 2014	Oct. 28, 2013	Sep. 30, 2013	Jul. 29, 2013	Jul. 01, 2013	May 06, 2013	Dec. 31, 2012	May 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Selling, General and Administrative Expenses [Member] \| CNG Fuel Systems [Member]
Note 15 - Acquisitions (Details) [Line Items]
Research and Development Expense												$ 2,000
CCTTS [Member]
Note 15 - Acquisitions (Details) [Line Items]
Equity Method Investment, Ownership Percentage				50.00%
Payments to Acquire Equity Method Investments				$ 2,200
North Florida Truck Parts, Inc [Member]
Note 15 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross	$ 1,600
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
House of Trucks, Inc [Member]
Note 15 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross		$ 6,900
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		15 years
Truck Parts Depot Inc [Member]
Note 15 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross			$ 500,000,000
CIT, Inc [Member]
Note 15 - Acquisitions (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years
Business Combination, Consideration Transferred					$ 146,600
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in Shares)					83,091
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned					$ 2,000
Prairie International Trucks [Member]
Note 15 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross						$ 9,500
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life						15 years
TransAuthority, Inc. [Member]
Note 15 - Acquisitions (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life							15 years
Business Combination, Consideration Transferred							$ 41,700
Business Combination, Value of Real Estate Transferred							$ 11,100
Midwest Truck Sales [Member]
Note 15 - Acquisitions (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life								15 years
Business Combination, Consideration Transferred								$ 16,800
Business Combination, Value of Real Estate Transferred								$ 2,300
Larson Group [Member]
Note 15 - Acquisitions (Details) [Line Items]
Payments to Acquire Businesses, Gross									$ 1,200
Piedmont International Trucks, LLC [Member]
Note 15 - Acquisitions (Details) [Line Items]
Business Combination, Consideration Transferred										$ 3,500
Acquisition of MVI Group [Member]
Note 15 - Acquisitions (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life											15 years
Business Combination, Consideration Transferred											$ 104,500
Payments to Acquire Businesses, Gross													$ 157,626	$ 72,725	$ 104,571
Research and Development Expense													$ 2,000

Note 15 - Acquisitions (Details) - Purchase Price Allocation - USD ($) $ in Thousands	Dec. 31, 2014	Dec. 08, 2014	Nov. 03, 2014	Jan. 13, 2014	Dec. 31, 2013	Oct. 28, 2013	Sep. 30, 2013	Jul. 29, 2013	May 06, 2013	Dec. 31, 2012
North Florida Truck Parts, Inc [Member]
Business Acquisition [Line Items]
Goodwill		$ 1,048
Property, plant and equipment		448
Inventory		50
Accounts receivable		20
Total purchase price		$ 1,566
House of Trucks, Inc [Member]
Business Acquisition [Line Items]
Goodwill			$ 1,968
Property, plant and equipment			2,416
Prepaid expenses			6
Accrued expenses			(28)
Inventory			2,512
Total purchase price			$ 6,874
CIT, Inc [Member]
Business Acquisition [Line Items]
Goodwill				$ 46,384
Franchise rights				2,442
Property, plant and equipment				60,066
Prepaid expenses				750
Other				23
Accrued expenses				(1,325)
Inventory				31,048
Accounts receivable				7,175
Total purchase price				$ 146,563
Prairie International Trucks [Member]
Business Acquisition [Line Items]
Goodwill						$ 2,832
Property, plant and equipment						3,209
Prepaid expenses						(56)
Other						3
Accrued expenses						(23)
Inventory						2,174
Accounts receivable						1,401
Total purchase price						$ 9,540
Transauthority, Inc., Transauthority Idealease, LLC and Transauthority Idealease-Tidewater, LLC [Member]
Business Acquisition [Line Items]
Goodwill							$ 7,798
Property, plant and equipment							26,829
Prepaid expenses							471
Other							66
Accrued expenses							(213)
Inventory							5,177
Accounts receivable							1,554
Total purchase price							$ 41,682
Midwest Truck Sales [Member]
Business Acquisition [Line Items]
Goodwill								$ 5,624
Property, plant and equipment								4,333
Prepaid expenses								39
Other								53
Accrued expenses								(61)
Inventory								6,792
Total purchase price								$ 16,780
Piedmont International Trucks, LLC [Member]
Business Acquisition [Line Items]
Property, plant and equipment									$ 1,485
Prepaid expenses									10
Accrued expenses									(76)
Inventory									1,720
Accounts receivable									364
Total purchase price									$ 3,503
Acquisition of MVI Group [Member]
Business Acquisition [Line Items]
Goodwill										$ 17,365
Property, plant and equipment										29,768
Prepaid expenses										488
Accrued expenses										(200)
Inventory										51,476
Accounts receivable										5,638
Total purchase price										104,535
Goodwill	$ 265,145				$ 215,464					$ 198,257

Note 16 - Accumulated Other Comprehensive Income (Details) - Accmulated Other Comprehensive (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accmulated Other Comprehensive (Loss) [Abstract]
Balance as of December 31, 2012	$ (624)	$ (1,178)
Balance as of December 31, 2012	(578)	(578)
Balance as of December 31, 2012	(1,202)	(1,756)
Income Tax Expense, Cash Flow Swaps	(308)	(338)
Income Tax Expense, Available for Sale Securities	(474)	(338)	$ (124)
Income Tax Expense, Total	(166)		9
Balance, Cash Flow Swaps	(143)	(624)	(1,178)
Balance, Available for Sale Securities	(317)	(578)	(578)
Balance, Total	(460)	(1,202)	(1,756)
Changes in Value, Cash Flow Swaps	789	892	$ 317
Changes in Value, Available for Sale Securities	427
Changes in Value, Total	$ 1,216	$ 892

Note 16 - Accumulated Other Comprehensive Income (Details) - Loss Reclassified from Accumulated Other Comprehensive (Loss) into Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Losses on cash flow swaps to:
Interest expense	$ (196)	$ (290)	$ (393)
Income tax benefit	76	113	153
Total reclassifications	$ (120)	$ (177)	$ (240)

Note 17 - Unaudited Quarterly Financial Data (Details) - USD ($) $ in Millions	1 Months Ended
	May 31, 2013	May 30, 2013
Former Chairman [Member]
Note 17 - Unaudited Quarterly Financial Data (Details) [Line Items]
Pension and Other Postretirement Benefit Expense	$ 10.8	$ 10.8

Note 17 - Unaudited Quarterly Financial Data (Details) - Quarterly Financial Data - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
First Quarter [Member]
2014
Revenues	$ 958,667
Gross profit	165,925
Operating income	22,746
Income before income taxes	19,615
Net income	$ 12,014
Earnings per share:
Basic (in Dollars per share)	$ 0.31
Diluted (in Dollars per share)	$ 0.30
Second Quarter [Member]
2014
Revenues	$ 1,182,461
Gross profit	193,349
Operating income	34,932
Income before income taxes	32,389
Net income	$ 19,838
Earnings per share:
Basic (in Dollars per share)	$ 0.50
Diluted (in Dollars per share)	$ 0.49
Third Quarter [Member]
2014
Revenues	$ 1,241,022
Gross profit	198,739
Operating income	41,018
Income before income taxes	38,329
Net income	$ 23,478
Earnings per share:
Basic (in Dollars per share)	$ 0.59
Diluted (in Dollars per share)	$ 0.57
Fourth Quarter [Member]
2014
Revenues	$ 1,345,206
Gross profit	198,033
Operating income	43,045
Income before income taxes	40,210
Net income	$ 24,627
Earnings per share:
Basic (in Dollars per share)	$ 0.62
Diluted (in Dollars per share)	$ 0.60
Revenues	$ 4,727,356	$ 3,384,705	$ 3,090,567
Gross profit	756,046	572,014	500,767
Operating income	141,741	91,754	114,200
Income before income taxes	130,543	81,061	101,183
Net income	$ 79,957	$ 49,217	$ 62,455
Basic (in Dollars per share)	$ 2.01	$ 1.25	$ 1.62
Diluted (in Dollars per share)	$ 1.96	$ 1.22	$ 1.57

Note 18 - Segments (Details)	12 Months Ended
Note 18 - Segments (Details)	Dec. 31, 2014
Segment Reporting [Abstract]
Number of Reportable Segments	1
Number of Operating Segments	3

Note 18 - Segments (Details) - Segment Reporting Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Truck Segment [Member]
2014
Revenues from external customers, by segment	$ 4,708,978	$ 3,365,900	$ 3,072,092
Interest income, by segment	239	41	21
Interest expense, by segment	11,278	10,559	12,830
Depreciation and amortization, by segment	40,283	29,403	24,482
Segment income (loss) from continuing operations before taxes, by segment	131,035	81,856	102,392
Segment assets, by segment	2,664,405	2,140,008	1,855,431
Goodwill, by segment	262,585	212,904	195,697
Expenditures for segment assets, by segment	262,613	191,016	170,436
Other Segments [Member]
2014
Revenues from external customers, by segment	18,378	18,805	18,475
Interest expense, by segment	159	175	208
Depreciation and amortization, by segment	503	522	534
Segment income (loss) from continuing operations before taxes, by segment	(492)	(795)	(1,209)
Segment assets, by segment	29,857	27,790	26,135
Goodwill, by segment	2,560	2,560	2,560
Expenditures for segment assets, by segment	510	568	515
Revenues from external customers, by segment	4,727,356	3,384,705	3,090,567
Interest income, by segment	239	41	21
Interest expense, by segment	11,437	10,734	13,038
Depreciation and amortization, by segment	40,786	29,925	25,016
Segment income (loss) from continuing operations before taxes, by segment	130,543	81,061	101,183
Segment assets, by segment	2,694,262	2,167,798	1,881,566
Goodwill, by segment	265,145	215,464	198,257
Expenditures for segment assets, by segment	$ 263,123	$ 191,584	$ 170,951

Note 19 - Asset Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Air Transportation Equipment [Member] \| Truck Segment [Member]
Note 19 - Asset Impairment (Details) [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 3,400
Property, Plant and Equipment, Gross		$ 9,900
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		3,900
Disposal Group, Including Discontinued Operation, Liabilities, Current		1,000
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent		6,200
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	327,193	$ 259,551
Disposal Group, Including Discontinued Operation, Liabilities, Current	$ 6,160

Note 20 - Related Party Transactions (Details) - CCTTS [Member] $ in Millions	12 Months Ended
	Dec. 31, 2014 USD ($)
London Interbank Offered Rate (LIBOR) [Member]
Note 20 - Related Party Transactions (Details) [Line Items]
Related Party Transaction, Rate	4.00%
Related Party Transaction, Amounts of Transaction	$ 10.0
Due to Related Parties	$ 8.2