Heartland Express (HTLD) 10-K 2 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Feb. 26, 2015	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Document Information [Line Items]
Entity Registrant Name	HEARTLAND EXPRESS INC
Entity Central Index Key	799233
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Amendment Flag	FALSE
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		87,790,677
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	183,100	175,100		212,000	277,000	351,000
Entity Public Float			$959.20

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS
Cash and cash equivalents	$17,303	$17,763
Trade receivables, net	77,034	84,400
Prepaid tires	10,160	6,999
Prepaid shop supplies	2,056	4,194
Other current assets	8,992	11,061
Income tax receivable	19,920	5,706
Deferred income taxes, net	14,767	14,177
Total current assets	150,232	144,300
PROPERTY AND EQUIPMENT
Land and land improvements	22,463	17,069
Buildings	34,151	27,347
Leasehold improvements	8,033	16,134
Furniture and fixtures	2,096	1,829
Shop and service equipment	10,820	10,604
Revenue equipment	600,335	549,415
Construction in progress	668	466
Property and equipment, gross	678,566	622,864
Less accumulated depreciation	198,007	173,605
Property and equipment, net	480,559	449,259
Goodwill	100,212	98,686
OTHER INTANGIBLES, NET	16,380	18,746
OTHER ASSETS	12,611	13,850
Assets	759,994	724,841
CURRENT LIABILITIES
Accounts payable and accrued liabilities	8,261	26,912
Compensation and benefits	26,303	28,084
Insurance accruals	19,249	20,945
Other accruals	14,475	12,627
Total current liabilities	68,288	88,568
LONG-TERM LIABILITIES
Income taxes payable	18,296	20,089
Long-term debt	24,600	75,000
Deferred income taxes, net	101,605	61,948
Insurance accruals less current portion	59,300	67,965
Other long-term liabilities	11,318	13,618
Total long-term liabilities	215,119	238,620
COMMITMENTS AND CONTINGENCIES (Note 13)
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01; authorized 5,000 shares; none issued	0	0
Capital stock, common, $.01 par value; authorized 395,000 shares; issued 90,689 in 2014 and 2013; outstanding 87,781 and 87,705 in 2014 and 2013, respectively	907	907
Additional paid-in capital	4,058	5,897
Retained earnings	509,834	432,034
Treasury stock, at cost; 2,908 and 2,984 shares in 2014 and 2013, respectively	-38,212	-41,185
Stockholders' Equity Attributable to Parent	476,587	397,653
Liabilities and Stockholders' Equity	$759,994	$724,841

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets Parentheticals (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
Consolidated Balance Sheets Parentheticals [Abstract]
Preferred Stock, Par or Stated Value Per Share	$0.01	$0.01
Preferred Stock, Shares Authorized	5,000	5,000
Preferred Stock, Shares Issued	0	0
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Shares Authorized	395,000	395,000
Common Stock, Shares, Issued	90,689	90,689
Common Stock, Shares, Outstanding	87,781	87,705
Treasury Stock, Shares	2,908	2,984

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
OPERATING REVENUE	$871,355	$582,257	$545,745
Operating Expenses
Salaries, wages and benefits	278,126	178,736	167,073
Rent and purchased transportation	51,950	12,808	6,273
Fuel	219,261	172,315	168,981
Operations and maintenance	39,052	22,345	25,282
Operating taxes and licenses	20,370	10,516	8,694
Insurance and claims	17,946	14,888	14,906
Communications and utilities	6,494	3,552	2,953
Depreciation and amortization	108,566	68,908	57,158
Other operating expenses	31,266	19,157	14,633
Gain on disposal of property and equipment	-33,544	-33,270	-15,109
Total operating expenses	739,487	469,955	450,844
Operating income	131,868	112,302	94,901
Interest income	195	462	674
Interest expense	-446	-208	0
Income before income taxes	131,617	112,556	95,575
Federal and state income taxes	46,783	41,974	34,034
Net income	84,834	70,582	61,541
Other comprehensive income, net of tax	0	1,284	1,797
Comprehensive income	$84,834	$71,866	$63,338
Net income per share
Basic	$0.97	$0.83	$0.72
Diluted	$0.96	$0.83	$0.71
Weighted average shares outstanding
Basic	87,748	85,209	85,892
Diluted	87,923	85,441	86,201
Dividends declared per share	$0.08	$0.08	$1.08

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
In Thousands
Balance at Dec. 31, 2011	$340,771	$907	$589	$398,706	($56,350)	($3,081)
Net income	61,541	0	0	61,541	0	0
Other comprehensive income, net of tax	1,797	0	0	0	0	1,797
Dividends on common stock	-91,934	0	0	-91,934	0	0
Repurchases of common stock	-24,190	0	0	0	-24,190	0
Stock-based Compensation	2,379	0	2,379	0	0	0
Balance at Dec. 31, 2012	290,364	907	2,968	368,313	-80,540	-1,284
Net income	70,582	0	0	70,582	0	0
Other comprehensive income, net of tax	1,284	0	0	0	0	1,284
Dividends on common stock	-6,861	0	0	-6,861	0	0
Stock Issued During Period, Value, Treasury Stock Reissued	41,100	0	1,745	0	39,355	0
Stock-based Compensation	1,184	0	1,184	0	0	0
Balance at Dec. 31, 2013	397,653	907	5,897	432,034	-41,185	0
Net income	84,834	0	0	84,834	0	0
Other comprehensive income, net of tax	0					0
Dividends on common stock	-7,034	0	0	-7,034	0	0
Stock Issued During Period, Value, Treasury Stock Reissued	0
Stock-based Compensation	1,134	0	-1,839	0	2,973	0
Balance at Dec. 31, 2014	$476,587	$907	$4,058	$509,834	($38,212)	$0

Consolidated_Statement_of_Stoc

Consolidated Statement of Stockholders' Equity Parentheticals (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Dividends declared per share	$0.08	$0.08	$1.08

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
OPERATING ACTIVITIES
Net income	$84,834	$70,582	$61,541
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	109,629	69,649	57,821
Deferred income taxes	39,067	10,262	-5,751
Loss on sale of investments	0	200	0
Amortization of stock-based compensation	1,134	1,184	2,379
Gain on disposal of property and equipment	-33,544	-33,270	-15,109
Changes in certain working capital items:
Trade receivables	7,366	7,834	-2,357
Prepaid expenses and other current assets	-1,009	904	5,688
Accounts payable, accrued liabilities, and accrued expenses	-19,017	-9,722	953
Accrued income taxes	-16,007	-6,388	-2,992
Net cash provided by operating activities	172,453	111,235	102,173
INVESTING ACTIVITIES
Proceeds from sale of property and equipment	91,266	92,313	29,184
Purchases of property and equipment, net of trades	-204,973	-135,195	-66,811
Maturity, calls and sales of investments	0	21,100	32,350
Acquisition of business, net of cash acquired	-3,011	-110,900	0
Change in other assets	1,239	-825	-704
Net cash (used in) provided by investing activities	-115,479	-133,507	-5,981
FINANCING ACTIVITIES
Cash dividends paid	-7,034	-6,861	-91,934
Proceeds from Lines of Credit	19,100	75,000	0
Repayments of Lines of Credit	-69,500	0	0
Repayments on debt assumed	0	-147,942	0
Repurchases of common stock	0	0	-24,190
Net cash used in financing activities	-57,434	-79,803	-116,124
Net (decrease) increase in cash and cash equivalents	-460	-102,075	-19,932
CASH AND CASH EQUIVALENTS
Beginning of period	17,763	119,838	139,770
End of period	17,303	17,763	119,838
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	484	4	0
Cash paid during the period for income taxes, net of refunds	23,723	38,101	42,776
Noncash investing and financing activities:
Fair value of revenue equipment traded	3,393	2,138	0
Purchased property and equipment in accounts payable	230	11,191	698
Issuance of common stock in acquisition of business	$0	$41,100

Significant_Accounting_Policie

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Significant Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies
	Nature of Business
	Heartland Express, Inc., (the “Company,” “we,” “us,” or “our”) is a holding company incorporated in Nevada, which owns all of the stock of Heartland Express Inc. of Iowa, Gordon Trucking, Inc. (“GTI”), Heartland Express Services, Inc., Heartland Express Maintenance Services, Inc., and A & M Express, Inc. We and our subsidiaries operate as one segment. We, together with our subsidiaries, are a short-to-medium haul truckload carrier (predominately 500 miles or less per load) with corporate headquarters in North Liberty, Iowa. We primarily provide nationwide asset-based dry van truckload service for major shippers from Washington to Florida and New England to California.
	Principles of Consolidation
	The accompanying consolidated financial statements include the parent company, Heartland Express, Inc., and its subsidiaries, all of which are wholly owned.  All material intercompany items and transactions have been eliminated in consolidation.
	Use of Estimates
	The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) 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 could differ from those estimates.
	Segment Information
	We provide multiple transportation services across the United States (U.S.) and parts of Canada. We offer primarily asset-based transportation services in the dry van truckload market and also offer truckload temperature-controlled transportation services and non-asset based brokerage services. None of our transportation services individually meet the definition of a segment. Our Chief Operating Decision Maker oversees and manages all of our transportation services, on a combined basis, including the legacy transportation services of GTI, which was acquired on November 11, 2013. As a result of the foregoing, we have determined that we have one segment, consistent with the authoritative accounting guidance on disclosures about segments of an enterprise and related information.
	Cash and Cash Equivalents
	Cash equivalents are short-term, highly liquid investments with insignificant interest rate risk and original maturities of three months or less at acquisition. At December 31, 2014, restricted and designated cash and investments totaled $12.6 million, and all of which was included in other non-current assets in the consolidated balance sheets.  Restricted and designated cash and investments totaled $10.6 million at December 31, 2013 and $0.1 million was included in other current assets and $10.5 million was included in non-current assets in the consolidated balance sheets. The restricted and designated funds represent deposits required by state agencies for self-insurance purposes and funds that are earmarked for a specific purpose and not for general business use.
	Investments
	Municipal bonds of $1.4 million and $1.4 million at December 31, 2014 and 2013, respectively, are stated at amortized cost, are classified as held-to-maturity and are included in restricted cash in other non-current assets.  Investment income received on held-to-maturity investments is generally exempt from federal income taxes and is accrued as earned.
	Trade Receivables and Allowance for Doubtful Accounts
	Revenue is recognized when freight is delivered, creating a credit sale and an account receivable.  Credit terms for customer accounts are typically on a net 30 day basis.   We use a percentage of aged receivable method and our write off history in estimating the allowance for bad debts.  We review the adequacy of our allowance for doubtful accounts on a monthly basis.  We are aggressive in our collection efforts resulting in a low number of write-offs annually.  Conditions that would lead an account to be considered uncollectible include customers filing bankruptcy and the exhaustion of all practical collection efforts.  We will use the necessary legal recourse to recover as much of the receivable as is practical under the law.  Allowance for doubtful accounts was $1.3 million and $1.0 million at December 31, 2014 and 2013, respectively.
	Prepaid Shop Supplies
	Prepaid shop supplies consist mainly of parts for revenue equipment and are valued at the lower of average cost or market.
	Prepaid Tires, Property, Equipment, and Depreciation
	Property and equipment are reported at cost, net of accumulated depreciation. Maintenance and repairs are charged to operations as incurred.  Tires are capitalized separately from revenue equipment and are reported separately as “Prepaid tires” in the consolidated balance sheets and amortized over two years.  Depreciation expense of $1.1 million and $0.7 million for the years ended December 31, 2014 and 2013, respectively, has been included in communications and utilities in the consolidated statements of comprehensive income. Depreciation for financial statement purposes is computed by the straight-line method for all assets other than tractors.  We recognize depreciation expense on tractors at 125% declining balance method. New tractors are depreciated to salvage values of $15,000 while new trailers are depreciated to salvage values of $4,000.
	We changed to 150% declining balance depreciation from the historical 125% declining balance depreciation for tractors in 2009 due to lower used truck values, higher prices for new equipment, and uncertainty surrounding the reliability and resale value of tractors with 2010 emission-compliant engines. Effective July 1, 2013, we changed depreciation for tractors back to the historical 125% declining balance method as a stable used equipment market supported a return to our historical estimate of depreciation on tractor equipment over its expected useful life. Under the declining balance method, depreciation for each tractor is highest in the first year and declines in each year throughout the useful life. Changing to the 125% declining balance method from the 150% declining balance method increased operating income and decreased depreciation expense by $3.3 million ($0.02 per share, net of tax effect) during the year ended December 31, 2014.
	Lives of the assets are as follows:
		Years
	Land improvements and buildings	30-May
	Leasehold improvements	25-May
	Furniture and fixtures	5-Mar
	Shop and service equipment	10-Mar
	Revenue equipment	7-May
	Impairment of Long-Lived Assets
	We periodically evaluate property and equipment and amortizable intangible assets for impairment upon the occurrence of events or changes in circumstances that indicate the carrying amount of assets may not be recoverable. Recoverability of assets to be held and used is evaluated by a comparison of the carrying amount of an asset group to future net undiscounted cash flows expected to be generated by the group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount over which the carrying amount of the assets exceeds the fair value of the assets.  There were no impairment charges recognized during the years ended December 31, 2014, 2013, and 2012.
	Fair Value of Financial Instruments
	The fair values of cash and cash equivalents, trade receivables, held-to-maturity investments and accounts payable, which are recorded at cost, approximate fair value based on the short-term nature and high credit quality of these financial instruments. The fair value of long-term debt is equal to the carrying amount as all of the debt is variable rate debt at current market rates.
	Advertising Costs
	We expense all advertising costs as incurred.  Advertising costs are included in other operating expenses in the consolidated statements of comprehensive income. Advertising expense was $2.7 million, $0.9 million, and $1.0 million for the years ended December 31, 2014, 2013, and 2012, respectively.
	Goodwill
	Goodwill is tested at least annually for impairment by applying a fair value based analysis in accordance with the authoritative accounting guidance on goodwill and other intangible assets.  Our annual assessment is conducted as of the end of September each year and no indicators requiring assessment were identified during the period from this assessment through year-end.  Management determined that no impairment charge was required for the years ended December 31, 2014, 2013, and 2012.
	Other Intangibles, Net
	Other intangibles, net consists primarily of a tradename, covenants not to compete, customer relationships, and real estate purchase options. All intangible assets determined to have finite lives are amortized over their estimated useful lives. The useful life of an intangible asset is the period over which the asset is expected to contribute directly or indirectly to future cash flows. See Notes 3 and 4 for additional information regarding intangible assets.
	Contingent Consideration
	We estimate and record the acquisition date estimated fair value of contingent consideration as part of purchase price consideration for acquisitions. Additionally, each reporting period, we estimate changes in the fair value of contingent consideration, and any change in fair value is recognized in the consolidated statements of comprehensive income. An increase in the earn-out expected to be paid in connection with the GTI acquisition will result in a charge to operations in the year that the anticipated fair value of contingent consideration increases, while a decrease in the earn-out expected to be paid will result in a credit to operations in the year that the anticipated fair value of contingent consideration decreases. The estimate of the fair value of contingent consideration requires subjective assumptions to be made of future operating results, discount rates, and probabilities assigned to various potential operating result scenarios. Future revisions to these assumptions could materially change the estimate of the fair value of contingent consideration and, therefore, materially affect our future financial results.
	Insurance Accruals
	We are self-insured for auto liability, cargo loss and damage, bodily injury and property damage (BI/PD), and workers’ compensation. Insurance accruals reflect the estimated cost of claims, including estimated loss and loss adjustment expenses incurred but not reported, and not covered by insurance.  Accident and workers’ compensation accruals are based upon individual case estimates, including reserve development, and estimates of incurred-but-not-reported losses based upon our own historical experience and industry claim trends. Insurance accruals are not discounted. The cost of cargo and BI/PD insurance and claims are included in insurance and claims expense, while the costs of workers’ compensation insurance and claims are included in salaries, wages, and benefits in the consolidated statements of comprehensive income. Insurance accruals are presented as either current or non-current in the consolidated balance sheets based on our expectation of when payment will occur.
	Health insurance accruals reflect the estimated cost of health related claims, including estimated expenses incurred but not reported.  The cost of health insurance and claims are included in salaries, wages and benefits in the consolidated statements of comprehensive income.  Health insurance accruals of $6.7 million and $6.1 million are included in other accruals in the consolidated balance sheets as of December 31, 2014 and 2013, respectively.
	Revenue and Expense Recognition
	Revenue is generally recognized when freight is delivered. Revenue is estimated for multiple-stop loads based on the number of miles run prior to the end of the accounting period. Revenue associated with loads delivered but not billed as of the end of an accounting period are estimated as part of revenue for that period. Fuel surcharge revenue charged to customers and freight brokerage services on freight brokered to third party carriers are earned consistent with the timing of freight revenues and included in operating revenue in the consolidated statements of comprehensive income. Fuel surcharge revenues were $170.4 million, $118.4 million, and $112.4 million for the years ended December 31, 2014, 2013, and 2012, respectively, and are included in operating revenue in the consolidated statement of comprehensive income. Revenue associated with freight brokerage services is recognized on a gross basis and as freight is delivered, as the Company is the primary obligor, although revenues are not material to the Company's consolidated operations. Driver wages and other direct operating expenses are recognized when freight is delivered and are estimated for multiple-stop loads at the end of an accounting period.
	Stock-Based Compensation
	We have a stock-based compensation plan that provides for the grants of restricted stock awards to our employees. We account for restricted stock awards using the fair value method of accounting for stock-based compensation. Issuances of stock upon vesting of restricted stock are made from treasury stock. Compensation expense for restricted stock grants is recognized over the requisite service period of each award and is included in salaries, wages and benefits in the consolidated statements of comprehensive income. Total compensation of $6.5 million is being amortized over the requisite service period for each separate vesting period as if the award is, in substance, multiple awards.
	Earnings per Share
	Basic earnings per share is based upon the weighted average common shares outstanding during each year.  Diluted earnings per share is based on the basic weighted earnings per share with additional weighted common shares for common stock equivalents. During the years ended December 31, 2012, 2013 and 2014, we granted shares of common stock to certain of our employees under the Company's 2011 Restricted Stock Award Plan. A reconciliation of the numerator (net income) and denominator (weighted average number of shares outstanding of the basic and diluted earnings per share (“EPS”) for 2014, 2013, and 2012 is as follows (in thousands, except per share data):
		2014
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	84,834	87,748	$	0.97
	Effect of restricted stock	—		175
	Diluted EPS	$	84,834	87,923	$	0.96
		2013
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	70,582	85,209	$	0.83
	Effect of restricted stock	—		232
	Diluted EPS	$	70,582	85,441	$	0.83
		2012
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	61,541	85,892	$	0.72
	Effect of restricted stock	—		309
	Diluted EPS	$	61,541	86,201	$	0.71
	Income Taxes
We use the asset and liability method of accounting for income taxes.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statements carrying amount of existing assets and liabilities and their respective tax basis.  Deferred 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.  Such amounts are adjusted, as appropriate, to reflect changes in tax rates expected to be in effect when the temporary differences reverse.  The effect of a change in tax rates on deferred taxes is recognized in the period that the change in enacted.   A valuation allowance is recorded to reduce our deferred tax assets to the amount that is more likely than not to be realized.
Pursuant to the authoritative accounting guidance on income taxes, when establishing a valuation allowance, we consider future sources of taxable income such as “future reversals of existing taxable temporary differences and carry-forwards” and “tax planning strategies”.  In the event we determine that the deferred tax assets will not be realized in the future, the valuation adjustment to the deferred tax assets is charged to earnings or accumulated other comprehensive loss based on the nature of the asset giving rise to the deferred tax asset and the facts and circumstances resulting in that conclusion.
We calculate our current and deferred tax provision based on estimates and assumptions that could differ from the actual results reflected in income tax returns filed in subsequent years.  Adjustments based on filed returns are recorded when identified.
We recognize the effect of income tax positions only if those positions are more likely than not of being sustained.  Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.  We record interest and penalties related to unrecognized tax benefits in income tax expense.
Comprehensive Income
Comprehensive income consists of net income and other comprehensive income. Other comprehensive income refers to revenues, expenses, gains and losses that are not included in net income, but rather are recorded directly in stockholders' equity. For the years ended December 31, 2013 and 2012, comprehensive income consists of net income and unrealized gains on available-for-sale securities. For the year ended December 31, 2014, comprehensive income consisted of net income.
During the years ended December 31, 2013 and 2012, there was $0.0 million, $1.3 million, and $1.8 million, respectively, of income recorded directly in stockholders' equity related entirely to an unrealized gain on available for sale securities due to the reversal of a previously recorded reserve to adjust certain investments to estimated fair value based on calls of investments at par.

Concentrations_of_Credit_Risk_

Concentrations of Credit Risk and Major Customers	12 Months Ended
	Dec. 31, 2014
Concentrations of Credit Risk and Major Customers [Abstract]
Concentration of Credit Risk and Major Customers	Concentrations of Credit Risk and Major Customers
	Our major customers represent primarily the consumer goods, appliances, food products and automotive industries.  Credit is granted to customers on an unsecured basis.  Our five largest customers accounted for approximately 32%, 32%, and 39% of operating revenues for the years ended December 31, 2014, 2013 and 2012, respectively. Our five largest customers accounted for approximately 28% and 20% of gross accounts receivable as of December 31, 2014 and 2013, respectively.
	There was no single customer that accounted for more than 10% of operating revenues for the year ended December 31, 2014 and 2013. During the year ended December 31, 2012, one customer exceeded 10% of operating revenues.

Acquisition_of_Gordon_Trucking

Acquisition of Gordon Trucking, Inc. Acquisition of Gordon Trucking, Inc.	12 Months Ended
	Dec. 31, 2014
Acquisition of Gordon Trucking, Inc. [Abstract]
Acquisition of Gordon Trucking, Inc.	Acquisition of Gordon Trucking, Inc.
	On November 11, 2013, Heartland Express, Inc. of Iowa (the “Buyer”), our wholly owned subsidiary, entered into a Stock Purchase Agreement, dated November 11, 2013 (the “Stock Purchase Agreement”), with GTI, the stockholders of GTI (the “Sellers”), and Mr. Larry Gordon, in his capacity as Sellers' Representative. GTI is a truckload carrier headquartered near Seattle, Washington, offering primarily asset-based transportation services in the dry van truckload market.
	Pursuant to the Stock Purchase Agreement, the Buyer purchased 100% of GTI's issued and outstanding common stock (the “Transaction”). The Buyer paid $285.0 million of total consideration, for the issued and outstanding common stock of GTI, which was paid in cash, restricted shares of our common stock, and the assumption of certain indebtedness of GTI. The purchase price was adjusted in the first quarter of 2014 when a post-closing true-up of working capital that was finalized. Up to an additional $20.0 million is payable in an earn-out for performance through 2017 with certain maximum amounts payable each year, as described below. The Stock Purchase Agreement included an election under Internal Revenue Code Section 338(h)(10). In addition, the Buyer purchased the personal goodwill of Mr. Gordon for $15.0 million pursuant to an Asset Purchase Agreement.
	The Stock Purchase Agreement contains customary representations, warranties, covenants, and indemnification provisions. At closing, $24.0 million of the purchase price in the form of our common stock was placed in escrow to secure payment of any post-closing adjustments to the purchase price and to secure the Sellers' indemnification obligations to the Buyer, and $6.0 million of the purchase price in cash was placed in escrow to secure the post-closing working capital adjustment, which was released when the post-closing working capital adjustment was finalized in the first quarter of 2014.
	The funds to pay the cash consideration payable to the Sellers and Mr. Gordon were funded out of our available cash at the time of the acquisition. The shares issued as part of the purchase price were issued from treasury shares. In connection with the Transaction, the Buyer, as the borrower, as well as the Company, GTI, and the other members of our consolidated group entered into an unsecured revolving credit facility, initially in the amount of up to $250.0 million (the “Financing”). Proceeds of the Financing were used in part to repay all of GTI's debt assumed in the Transaction. See Note 5 for further details of the Financing.
	GTI's results have been included in the consolidated financial statements since the date of acquisition and represented 48.6% of consolidated total assets as of December 31, 2013 and 9.6% of operating revenue for 2013. Acquisition related expenses of $2.2 million are included in the consolidated statement of comprehensive income for the year ended December 31, 2013.
	The following unaudited pro forma consolidated results of operations for the years ended December 31, 2013 and 2012 assume that the acquisition of GTI occurred as of January 1, 2012.
		Year ended
		31-Dec-13				December 31, 2012
		(in thousands)
	Operating revenue	$	961,525			$	972,340
	Net income	90,821				64,769
	These pro forma amounts do not purport to be indicative of the results that would have actually been obtained if the acquisition had occurred at the beginning of the periods presented or that may be obtained in the future.
	The allocation of the purchase price is detailed in the tables below. The goodwill recognized represents expected synergies from combining our operations with those of GTI, as well as other intangible assets that did not meet the criteria for separate recognition. All tax goodwill recognized in the Transaction is deductible for tax purposes over 15 years.
	ALLOCATION OF PURCHASE PRICE	(in thousands)
	Cash paid (before netting $20 million cash acquired)				$	130,900
	Value of common stock issued (2.86 million shares)				41,100
	Total fair value of consideration transferred (before netting $20 million cash acquired), excluding debt assumed				172,000
	Allocated to:
	Historical book value of GTI's assets and liabilities	$	92,125
	Adjustments to recognize assets and liabilities at acquisition-date fair value:
	Property, plant, and equipment	(17,912		)
	Other assets	3,450
	Liabilities	(18,576		)
	Fair value of tangible net assets acquired				59,087
	Identifiable intangibles at acquisition-date fair value				19,042
	Excess of consideration transferred over the net amount of assets and liabilities recognized, including $13.6 million attributable to the fair value of a potential earn-out obligation (goodwill)				$	93,871
	Excess of consideration transferred over the net amount of assets and liabilities recognized, (goodwill), was still subject to final purchase price consideration related to post closing working capital adjustment as of December 31, 2013. The post-closing net working capital amount was finalized in the first quarter of 2014, see Note 4 for further discussion.
	The assets and liabilities associated with GTI were recorded at their fair values as of the acquisition date and the amounts are as follows:
		(in thousands)
	Cash and cash equivalents	$	21,485
	Accounts receivable	45,679
	Other current assets	14,371
	Property and equipment	189,409
	Other non-current assets	3,916
	Intangible assets	19,042
	Goodwill	93,871
	Total assets	387,773
	Accounts payable and accrued expenses	(29,165		)
	Insurance accruals	(23,821		)
	Long-term debt	(147,942		)
	Other accruals	(14,845		)
	Total consideration transferred	$	172,000
	TOTAL PURCHASE PRICE CONSIDERATION	(in thousands)
	Cash paid pursuant to Stock Purchase Agreement	$	115,900
	Cash paid pursuant to an Asset Purchase Agreement	15,000
	Cash acquired included in historical book value of GTI assets and liabilities	(20,000		)
	Net cash paid at closing	$	110,900
	Common stock issued (par value of $0.01)	$	41,100
	Debt assumption	148,000
		$	300,000
	Included in adjustments to recognize assets and liabilities at acquisition-date fair values was a liability of $1.5 million, which was included in accounts payable and accrued liabilities as of December 31, 2013, and which represented a working capital adjustment for additional amounts owed to the Sellers for the amount by which the cash balance actually delivered at closing exceeded the estimated cash balance of $20.0 million to be paid at closing and the amount by which the debt balance actually delivered at closing was less than the estimated debt balance of $148.0 million used in calculating the total purchase price consideration paid at closing.
	As part of the Stock Purchase Agreement, we entered into a contingent consideration agreement with certain stockholders of the Sellers. The contingent consideration agreement includes various earn-out targets tied to certain operational metrics of GTI as well as consolidated operational performance over the period of 2014 through 2017. The total potential earn-out is $20.0 million with maximum amounts payable each year as follows:
			(in thousands)
	2014		$	6,000
	2015		6,000
	2016-2017		8,000
			$	20,000
	Per the terms of the Stock Purchase Agreement, the Sellers will be entitled to any unearned earn-out amounts for 2014 and 2015 if the maximum earn-out target is achieved in either the 2016 or 2017 earn-out period, but in no event will the earn-out exceed $20.0 million in the aggregate for all earn-out periods. The contingent liability was estimated as of the acquisition date and has been included in the adjustments to liabilities at acquisition-date fair value recorded. Estimated fair value of this contingent liability as of the acquisition date was calculated using unobservable, Level 3 inputs, due to lack of observable market inputs. The original valuation of the contingent liability was generated by third party valuation personnel using a Monte Carlo, assuming Geometric Brownian Motion, simulation model to hypothetically replicate our future performance, which model was based on techniques that use significant assumptions not observable in the market including our estimated future operating performance, a risk-free rate, volatility rate, and the underlying time period. As such, the fair value of the contingent liability is subject to change based on actual results of GTI and us in future years. We may be required to record an operating expense in a future period for any difference in the recorded liability, at December 31, 2014, and the potential earn-out maximum payment of $20.0 million based on actual results. At December 31, 2014, the Company estimated the potential earn-out of $13.6 million, of which $2.3 million was included in other current liabilities and $11.3 million was included in other long-term liabilities at December 31, 2014. At December 31, 2013, the liability for the potential earn-out was $13.6 million, all of which were included in other long-term liabilities.

Intangible_Assets_and_Goodwill

Intangible Assets and Goodwill	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets and Goodwill	Intangible Assets and Goodwill
	The following tables summarize the intangible assets subject to amortization for the years ended December 31, 2014 and December 31, 2013.
		2014
		Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
			(in thousands)
	Customer relationships	20	$	7,600	$	428	$	7,172
	Tradename	6	7,400		1,388		6,012
	Covenants not to compete	10	3,100		351		2,749
	Real estate options	2.2	942		495		447
			$	19,042	$	2,662	$	16,380
		2013
		Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
			(in thousands)
	Customer relationships	20	$	7,600	$	48	$	7,552
	Tradename	6	7,400		154		7,246
	Covenants not to compete	10	3,100		39		3,061
	Real estate options	2.2	942		55		887
			$	19,042	$	296	$	18,746
	Amortization expense associated with identifiable intangible assets at acquisition-date fair values from the date of acquisition to December 31, 2013 and for the twelve months ended December 31, 2014 was $0.3 million and $2.4 million, respectively, and was included in depreciation and amortization in the consolidated statements of comprehensive income. Future amortization expense for intangible assets is estimated at $2.4 million the year ending December, 31, 2015, $1.9 million for 2016, $1.9 million for 2017, $1.9 million for 2018, and $1.8 million for 2019.
	Changes in carrying amount of goodwill were as follows:
		(in thousands)
	Balance at January 1, 2013	4,815
	Acquisitions	93,871
	Balance at December 31, 2013	98,686
	Acquisition adjustments	1,526
	Balance at December 31, 2014	100,212
	Included in the carrying amount of goodwill at December 31, 2013 was $1.5 million, which was included in accounts payable and accrued liabilities as of December 31, 2013, representing a working capital adjustment for additional amounts owed to the sellers of GTI for the amount by which the cash balance actually delivered at closing exceeded the estimated cash balance of $20.0 million to be paid at closing on November 11, 2013. The final consideration transferred over the net amount of assets and liabilities recognized on November 11, 2013 (goodwill) was still subject to post closing working capital adjustments at December 31, 2013. The working capital adjustments were finalized in March 2014 resulting in an additional payment of $3.0 million, which included the$1.5 million liability recorded at December 31, 2013.
	Goodwill and identifiable intangible assets are tested at least annually for impairment by applying a fair value based analysis in accordance with the authoritative accounting guidance on goodwill and other intangible assets. We perform an annual impairment test as of the end of September each year or any other time when indicators requiring further assessment are identified. There were no indicators requiring further assessment that were identified during the twelve month period ended December 31, 2014 and our 2014 annual impairment test resulted in no impairment.

LongTerm_Debt_Notes

Long-Term Debt (Notes)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Line of Credit and Long Term Debt	Long-Term Debt
	In November 2013, we entered into a credit agreement (the “Credit Agreement”) by and among Wells Fargo Bank, National Association, (the “Bank”), Heartland Express, Inc. of Iowa as the borrower (the “Borrower”), us, GTI, and the other members of our consolidated group, as Guarantors. Pursuant to the Credit Agreement, the Bank provided a five-year, $250.0 million unsecured revolving line of credit, which was used to finance the Transaction, including the payoff of debt assumed as part of the Transaction. We may also use the line of credit in the future for working capital, equipment financing, and general corporate purposes. The Bank's commitment decreased to $225.0 million on November 1, 2014, and will decrease to $200.0 million on November 1, 2015, and to $175.0 million on November 1, 2016 through October 31, 2018.
	The Credit Agreement is unsecured, with a negative pledge against all assets of our consolidated group, except for debt associated with permitted acquisitions, new purchase-money debt and capital lease obligations as described in the Credit Agreement. The Credit Agreement matures on October 31, 2018. The Borrower has the ability to terminate the commitment at any time at no additional cost to the Borrower. Borrowings under the Credit Agreement can either be, at Borrower's election, (i) one-month or three-month LIBOR (Index) plus 0.625%, floating, or (ii) Prime (Index) plus 0.0%, floating. There is a commitment fee on the unused portion of the revolving line of credit at 0.625%, due quarterly.
	The Credit Agreement contains customary financial covenants including, but not limited to, (i) a maximum adjusted leverage ratio of 2:1, measured quarterly, (ii) a minimum net income requirement of $1.00, measured quarterly, (iii) a minimum tangible net worth of $200 million requirement, measured quarterly, and (iv) limitations on other indebtedness and liens. The Credit Agreement also includes customary events of default, conditions, representations and warranties, and indemnification provisions. We were in compliance with the financial covenants at December 31, 2014.
	Long term debt consisted of the following at December 31 (in thousands):
		31-Dec-14		December 31, 2013
	Long-term debt	$	24,600	$	75,000
	The weighted average variable annual percentage rate (“APR”) for amounts borrowed and outstanding at December 31, 2014 and December 31, 2013 was 0.787% and 0.793%, respectively. Borrowing under the line of credit is recorded in “Long-term debt” in the consolidated balance sheets. Outstanding letters of credit associated with the revolving line of credit at December 31, 2014 were $4.4 million compared to $5.5 million at December 31, 2013. As of December 31, 2014, the line of credit available for future borrowing was $196.0 million compared to $169.5 million at December 31, 2013.

Accident_and_Workers_Compensat

Accident and Workers' Compensation Insurance Liabilities	12 Months Ended
	Dec. 31, 2014
Accident and Workers' Compensation Insurance Liabilities [Abstract]
Accident and Workers' Compensation Insurance Liabilities	Accident and Workers’ Compensation Insurance Accruals
	We act as a self-insurer for auto liability involving property damage, personal injury, or cargo based on defined insurance retention amounts ranging from $0.5 million to $2.0 million for any individual claim based on the insured party and circumstances of the loss event. Liabilities in excess of these amounts are covered by insurance up to $75.0 million. We retain any liability in excess of $75.0 million. We act as a self-insurer for property damage to our tractors and trailers.
	We act as a self-insurer for workers’ compensation liability ranging from $0.5 million to $1.0 million for any individual claim based on the insured party and circumstances of the loss event. Liabilities in excess of this amount are covered by insurance. The State of Iowa initially required us to deposit $0.7 million into a trust fund as part of the self-insurance program.  Earnings on this account become part of the required deposit and as of December 31, 2014 and December 31, 2013 total deposits in this account were $1.4 million. This deposit is in municipal bonds classified as held-to-maturity and is recorded in other non-current assets on the consolidated balance sheets.  The State of Washington required us to deposit $0.7 million into a trust fund as part of the self insurance program. As of December 31, 2014, $0.7 million of deposits was recorded in other non-current assets on the consolidated balance sheets. As of December 31, 2013, $0.6 million of deposits was recorded in other non-current assets and $0.1 million was included in other current assets.
	In addition, we have provided insurance carriers with letters of credit totaling approximately $7.5 million in connection with our liability and workers’ compensation insurance arrangements and self-insurance requirements of the Federal Motor Carrier Safety Administration.  There were no outstanding balances due on any letters of credit at December 31, 2014 or 2013.
	Accident and workers’ compensation accruals include the estimated settlements, settlement expenses and an estimate for claims incurred but not yet reported for property damage, personal injury and public liability losses from vehicle accidents and cargo losses as well as workers’ compensation claims for amounts not covered by insurance.  Accident and workers’ compensation accruals are based upon individual case estimates, including reserve development, and estimates of incurred-but-not-reported losses based upon our own historical experience and industry claim trends.  Since the reported liability is an estimate, the ultimate liability may be more or less than reported.  If adjustments to previously established accruals are required, such amounts are included in operating expenses in the current period.  These accruals are recorded on an undiscounted basis. Estimated claim payments to be made within one year of the balance sheet date have been classified as insurance accruals within current liabilities as of December 31, 2014 and 2013.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	Deferred tax assets and liabilities as of December 31 are as follows:
			2014				2013
			(in thousands)
	Deferred income tax assets:
	Allowance for doubtful accounts		$	478			$	291
	Accrued expenses		8,969				6,980
	Stock-based compensation		677				648
	Insurance accruals		25,395				26,000
	State net operating loss carryforward		3,241				682
	Indirect tax benefits of unrecognized tax benefits		4,595				4,846
	Other		772				1,207
	Total gross deferred tax assets		44,127				40,654
	Less valuation allowance		—				—
	Net deferred tax assets		44,127				40,654
	Deferred income tax liabilities:
	Property and equipment		(125,611		)		(85,849		)
	Goodwill		(2,385		)		(1,835		)
	Prepaid expenses		(2,969		)		(741		)
			(130,965		)		(88,425		)
	Net deferred tax liability		$	(86,838	)		$	(47,771	)
	The deferred tax amounts above have been classified in the accompanying consolidated balance sheets at December 31, 2014 and 2013 as follows:
			2014				2013
			(in thousands)
	Current assets, net		$	14,767			$	14,177
	Long-term liabilities, net		(101,605		)		(61,948		)
			$	(86,838	)		$	(47,771	)
	We have not recorded a valuation allowance against any deferred tax assets at December 31, 2014 and 2013.  In management’s opinion, it is more likely than not that we will be able to utilize these deferred tax assets in future periods as a result of our history of profitability, taxable income, and reversal of deferred tax liabilities.
	Income tax expense consists of the following:
			2014				2013			2012
			(in thousands)
	Current income taxes:
	Federal		$	6,860			$	30,560		38,148
	State		855				1,152			1,636
			7,715				31,712			39,784
	Deferred income taxes:
	Federal		36,706				7,192			(5,890		)
	State		2,362				3,070			140
			39,068				10,262			(5,750		)
	Total		$	46,783			$	41,974		$	34,034
	The income tax provision differs from the amount determined by applying the U.S. federal tax rate as follows:
			2014				2013			2012
			(in thousands)
	Federal tax at statutory rate (35%)		$	46,066			$	39,395		33,451
	State taxes, net of federal benefit		2,737				3,242			1,554
	Non-taxable interest income		(7		)		(20		)	(48		)
	Uncertain income tax penalties and interest, net		(993		)		(766		)	(616		)
	Other		(1,020		)		123			(307		)
			$	46,783			$	41,974		$	34,034
	At December 31, 2014 and December 31, 2013, we had a total of $12.6 million and $13.4 million in gross unrecognized tax benefits, respectively.  Of this amount, $8.0 million and $8.6 million represents the amount of unrecognized tax benefits that, if recognized, would impact our effective tax rate as of December 31, 2014 and December 31, 2013, respectively.  Unrecognized tax benefits were a net decrease of $0.8 million and $2.3 million during the years ended December 31, 2014 and 2013, respectively, due mainly to the expiration of certain statutes of limitation net of additions and settlements with respective states.  This had the effect of reducing the effective state tax rate during these respective periods. The total net amount of accrued interest and penalties for such unrecognized tax benefits was $5.7 million and $6.7 million at December 31, 2014 and December 31, 2013, respectively, and is included in income taxes payable in the consolidated balance sheets.  Net interest and penalties included in income tax expense for the years ended December 31, 2014, 2013 and 2012 was a benefit of approximately $1.0 million, $0.7 million, and $0.6 million respectively. Income tax expense is increased each period for the accrual of interest on outstanding positions and penalties when the uncertain tax position is initially recorded. Income tax expense is reduced in periods by the amount of accrued interest and penalties associated with reversed uncertain tax positions due to lapse of applicable statute of limitations, when applicable or when a position is settled. Income tax expense was reduced during the years ended December 31, 2014, 2013 and 2012 due to reversals of interest and penalties due to lapse of applicable statute of limitations and settlements, net of additions for interest and penalty accruals during the same period. These unrecognized tax benefits relate to risks associated with state income tax filing positions for our corporate subsidiaries.
	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
		2014				2013
		(in thousands)
	Balance at January 1,	$	13,432			$	15,723
	Additions based on tax positions related to current year	983				843
	Additions for tax positions of prior years	277				616
	Reductions for tax positions of prior years	—				(300		)
	Reductions due to lapse of applicable statute of limitations	(2,060		)		(1,984		)
	Settlements	—				(1,466		)
	Balance at December 31,	$	12,632			$	13,432
	A number of years may elapse before an uncertain tax position is audited and ultimately settled. It is difficult to predict the ultimate outcome or the timing of resolution for uncertain tax positions. It is reasonably possible that the amount of unrecognized tax benefits could significantly increase or decrease within the next twelve months. These changes could result from the expiration of the statute of limitations, examinations or other unforeseen circumstances. We do not have any outstanding litigation related to tax matters.  At this time, management’s best estimate of the reasonably possible change in the amount of gross unrecognized tax benefits is a decrease of approximately $0.7 million to a decrease of $1.7 million during the next twelve months, mainly due to the expiration of certain statute of limitations, net of additions.  The federal statute of limitations remains open for the years 2011 and forward. Tax years 2004 and forward are subject to audit by state tax authorities depending on the tax code and administrative practice of each state.

Operating_Leases_Operating_Lea

Operating Leases Operating Leases	12 Months Ended
	Dec. 31, 2014
Leases [Abstract]
Operating Leases	Operating Leases
	We have operating leases for certain revenue equipment. A portion of these leases are with a commercial tractor dealership, which is owned by a board member and certain of our employees. Rent expense for these leases was $8.3 million and $1.3 million, (including related-party rental payments totaling $6.8 million and $0.9 million), for the year ended December 31, 2014 and 2013, respectively, and were included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire from 2015 through 2016.
	We lease certain terminal facilities under operating leases. A portion of these leases are with limited liability companies, whose members include a board member and certain of our employees and a commercial tractor dealership owned by a board member and certain of our employees. The related-party rental payments were entered into as a result of the Transaction. Rent expense for terminal facilities were $4.2 million and $0.7 million, (including related-party rental payments totaling $3.9 million and $0.6 million), for the years ended December 31, 2014 and 2013, respectively, and was included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire from 2015 through 2018 and contain options to renew. We have purchase options on the majority of these facilities. We exercised our purchase option on the Lathrop, California terminal and finalized this purchase during the second quarter of 2014. We paid $2.8 million to a limited liability company, whose members include a board member and certain of our employees, as a result of this transaction. We have a right of first refusal on the sale of the Pacific, Washington location property by the owners. We are responsible for all taxes, insurance, and utilities related to the terminal leases. See Note 4 for acquisition-date fair value of the “Real estate options”.
	As of December 31, 2014, we did not have any capital lease obligations. Future minimum lease payments related to the operating leases described above, as of December 31, 2014, are as follows:
		Amounts (in thousands)
		Related Party		Non-Related Party		Total
	2015	$	6,580	$	507	$	7,087
	2016	5,010		206		5,216
	2017	3,718		135		3,853
	2018	3,408		—		3,408
	Thereafter	—		—		—
	Total	$	18,716	$	848	$	19,564
	See Note 12 for additional information regarding related party transactions.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2014
Share Repurchases [Abstract]
Stockholders' Equity	Equity
	In 2001, our Board of Directors authorized a program to repurchase 15.4 million shares, adjusted for stock splits, of our common stock in open market or negotiated transactions using available cash, cash equivalents and investments which was subsequently amended in February 2012 to increase the remaining number of authorized shares for repurchase to 5 million.  Approximately 3.2 million shares remaining authorized for repurchase under the program as of December 31, 2014 and has no expiration date. There were no shares repurchased in the open market during the years ended December 31, 2014 and 2013 and 1.8 million shares repurchased during 2012. Shares repurchased during 2012 were accounted for as treasury stock. Shares purchased under the repurchase program prior to 2012 were retired. The share repurchase authorization is discretionary, and may be suspended or discontinued at any time without prior notice.
	During the years ended December 31, 2014, 2013 and 2012 our Board of Directors declared regular quarterly dividends totaling $7.0 million, $6.9 million, and $6.9 million for each year, respectively.  We paid a special dividend of $85.0 million during the fourth quarter of 2012. Future payment of cash dividends and the amount of such dividends will depend upon our financial conditions, our results of operations, our cash requirements, our tax treatment, and certain corporate law requirements, as well as factors deemed relevant by our Board of Directors.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2014
Stock-Based Compensation [Abstract]
Stock Based Compensation	Stock-Based Compensation
	In July 2011, a Special Meeting of Stockholders of Heartland Express, Inc. was held, at which meeting the approval of the Heartland Express, Inc. 2011 Restricted Stock Award Plan (the “Plan”) was ratified. The Plan is administered by the Compensation Committee of our Board of Directors. Per the terms of the awards, employees receiving awards will have all of the rights of a stockholder with respect to the unvested restricted shares including, but not limited to, the right to receive such cash dividends, if any, as may be declared on such shares from time to time and the right to vote such shares at any meeting of our stockholders.
	The Plan made available up to 0.9 million shares for the purpose of making restricted stock grants to our eligible officers and employees. During December 2011, 0.4 million shares were granted to employees and no additional shares were granted during 2012. There were 0.05 million shares granted during 2014 and 0.02 million shares were granted in 2013. The shares granted under the Plan during 2011 are service based awards beginning December 14, 2011 and 20% of the awards vest each June 1st through 2016. The shares issued in 2014 and 2013 are also service based awards and generally vest evenly from the date of grant through the fifth anniversary date of the grant. Once vested, there are no other restrictions on the awards. Compensation expense associated with these awards is based on the market value of our stock on the grant date. Our market closing price on December 14, 2011, grant date, was $13.57 and ranged between $13.86 and $18.18 on the various grant dates for the shares issued in 2013. The Company's market close price ranged between $21.72 and $27.47 on the various grant dates during 2014. There were no significant assumptions made in determining the fair value. Compensation expense associated with restricted stock awards is included in salaries, wages and benefits in the consolidated statements of comprehensive income. Compensation expense associated with restricted stock awards was $1.1 million, $1.2 million, and $2.4 million for the years ended December 31, 2014, 2013, and 2012 respectively. Unrecognized compensation expense was $1.3 million at December 31, 2014 which will be recognized over a weighted average period of 1.5 years.
	The following table summarizes our restricted stock award activity for the years ended December 31, 2014, 2013 and 2012. The vesting date for the majority of awards vested in 2014 was June 1, 2014. The fair value of awards vested during 2014, 2013 and 2012 was $1.1 million, $1.1 million and $1.0 million, respectively.
		2014
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	211.5		$	13.81
	Granted	52.2		25.4
	Vested	(75.6	)	14.34
	Forfeited	(5.0	)	13.57
	Outstanding (unvested) at end of year	183.1		$	16.78
		2013
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	276.8		$	13.57
	Granted	23		17.28
	Vested	(75.3	)	14.04
	Forfeited	(13.0	)	13.57
	Outstanding (unvested) at end of year	211.5		$	13.81
		2012
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	351		$	13.57
	Granted	—		—
	Vested	(70.2	)	13.57
	Forfeited	(4.0	)	13.57
	Outstanding (unvested) at end of year	276.8		$	13.57

Profit_Sharing_Plan_and_Retire

Profit Sharing Plan and Retirement Plan	12 Months Ended
	Dec. 31, 2014
Profit Sharing Plan and Retirement Plan [Abstract]
Profit Sharing Plan and Retirement Plan	Profit Sharing Plan and Retirement Plan
	We have retirement savings plans (the “Plans”) for substantially all employees who have completed one year of service and are 19 years of age or older.  Employees may make 401(k) contributions subject to Internal Revenue Code limitations. The Plans provide for a discretionary profit sharing contribution to non-driver employees and a matching contribution of a discretionary percentage to driver employees (Heartland Plan) and discretionary matching contributions to driver and non-driver employees (GTI Plan).  Our profit sharing contributions totaled approximately $2.1 million, $0.4 million, and $0.7 million, for the years ended December 31, 2014, 2013 and 2012, respectively.

Related_Party

Related Party	12 Months Ended
	Dec. 31, 2014
Related Party [Abstract]
Related Party	Related Party
	We lease terminal facilities for operations under operating leases from certain limited liability companies, whose members include a board member and certain of our employees, and a commercial tractor dealership owned by a board member and certain of our employees. The terminal facility leases have initial five year terms with options to renew and options to purchase with the exception of the Pacific, Washington location which contains a right of first refusal on any sale of the property.
	We purchased tractors from and sold tractors to the commercial tractor dealership noted above. We also have operating leases for certain revenue equipment with the commercial tractor dealership and we also purchased parts and services from the same commercial tractor dealership. We owed this commercial tractor dealership $0.1 million and $1.3 million, which were included in accounts payable and accrued liabilities in the consolidated balance sheet at December 31, 2014 and 2013, for parts and service and tractors delivered but not paid for prior to December 31, 2014 and 2013, respectively. We also provide certain administrative services to this commercial tractor dealership.
	The related payments (receipts) with related parties for the period after the close of the Transaction, November 11, 2013 through December 31, 2013 and for the year ended December 31, 2014 were as follows:
		31-Dec-14			November 11, 2013 to December 31, 2013
		(in thousands)
	Payments for tractor purchases	$	46,562		$	6,884
	Receipts for tractor sales	(15,564		)	(2,138		)
	Receipts for trailer sales	(103		)	—
	Revenue equipment lease payments	6,842			930
	Payments for parts and services	5,906			1,058
	Terminal lease payments	3,930			572
	Terminal lease purchase option payment	2,825			—
	Administrative services receipts	(516		)	(98		)
		$	49,882		$	7,208

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	We are a party to ordinary, routine litigation and administrative proceedings incidental to our business. In the opinion of management, our potential exposure under pending legal proceedings is adequately provided for in the accompanying consolidated financial statements.
	The total estimated purchase commitments for tractors, net of tractor sale commitments, and trailer equipment, at December 31, 2014, was $85.9 million.

Quarterly_Financial_Informatio

Quarterly Financial Information (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information (Unaudited) [Abstract]
Quarterly Financial Information (Unaudited)	Quarterly Financial Information (Unaudited)
			First		Second		Third		Fourth
			(In Thousands, Except Per Share Data)
	Year ended December 31, 2014
	Operating revenue		$	224,481	$	226,785	$	217,092	$	202,997
	Operating income		20,688		40,642		36,290		34,247
	Income before income taxes		20,569		40,616		36,214		34,216
	Net income		14,079		26,472		22,737		21,544
	Net income per share, basic		0.16		0.3		0.26		0.25
	Net income per share, diluted		0.16		0.3		0.26		0.25
	Year ended December 31, 2013(1)
	Operating revenue		$	134,273	$	133,992	$	130,645	$	183,348
	Operating income		30,207		29,375		26,000		26,720
	Income before income taxes		30,330		29,504		26,126		26,596
	Net income		19,734		19,138		15,868		15,842
	Net income per share, basic		0.23		0.23		0.19		0.18
	Net income per share, diluted		0.23		0.23		0.19		0.18
	-1	We acquired 100% of the outstanding stock of GTI on November 11, 2013 and therefore our operating results for the fourth quarter of 2013 includes the operating results of GTI for the period of November, 11, 2013 to December 31, 2013.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events
	We have evaluated events occurring subsequent to December 31, 2014 through the filing date of this Annual Report on Form 10-K for disclosure. As of January 31, 2015, we had no outstanding borrowings on our line of credit. No other events occurred requiring disclosure.

Schedule_II_Valuation_of_Quali

Schedule II Valuation of Qualifying Accounts and Reserves

12 Months Ended

Dec. 31, 2014

Schedule II Valuation and Qualifying Accounts and Reserves [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

(In Thousands, Except Per Share Data)

Column A

Column B

Column C

Column D

Column E

Charges To

Balance At

Cost

Balance

Beginning

And

Other

At End

Description

of Period

Expense

Accounts (1)

Deductions

of Period

Allowance for doubtful accounts:

Year ended December 31, 2014

$

1,028

$

466

$

—

$

232

$

1,262

Year ended December 31, 2013

829

(27

)

238

12

1,028

Year ended December 31, 2012

791

205

—

167

829

(1) Addition to allowance for doubtful accounts following acquisition of GTI.

See accompanying Report of Independent Registered Public Accounting Firm.

Significant_Accounting_Policie1

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Significant Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation
	The accompanying consolidated financial statements include the parent company, Heartland Express, Inc., and its subsidiaries, all of which are wholly owned.  All material intercompany items and transactions have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates
	The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) 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 could differ from those estimates.
Segment Reporting, Policy [Policy Text Block]	Segment Information
	We provide multiple transportation services across the United States (U.S.) and parts of Canada. We offer primarily asset-based transportation services in the dry van truckload market and also offer truckload temperature-controlled transportation services and non-asset based brokerage services. None of our transportation services individually meet the definition of a segment. Our Chief Operating Decision Maker oversees and manages all of our transportation services, on a combined basis, including the legacy transportation services of GTI, which was acquired on November 11, 2013. As a result of the foregoing, we have determined that we have one segment, consistent with the authoritative accounting guidance on disclosures about segments of an enterprise and related information.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents
	Cash equivalents are short-term, highly liquid investments with insignificant interest rate risk and original maturities of three months or less at acquisition. At December 31, 2014, restricted and designated cash and investments totaled $12.6 million, and all of which was included in other non-current assets in the consolidated balance sheets.  Restricted and designated cash and investments totaled $10.6 million at December 31, 2013 and $0.1 million was included in other current assets and $10.5 million was included in non-current assets in the consolidated balance sheets. The restricted and designated funds represent deposits required by state agencies for self-insurance purposes and funds that are earmarked for a specific purpose and not for general business use.
Marketable Securities, Held-to-maturity Securities, Policy [Policy Text Block]	Investments
	Municipal bonds of $1.4 million and $1.4 million at December 31, 2014 and 2013, respectively, are stated at amortized cost, are classified as held-to-maturity and are included in restricted cash in other non-current assets.  Investment income received on held-to-maturity investments is generally exempt from federal income taxes and is accrued as earned.
Trade and Other Accounts Receivable, Policy [Policy Text Block]	Trade Receivables and Allowance for Doubtful Accounts
	Revenue is recognized when freight is delivered, creating a credit sale and an account receivable.  Credit terms for customer accounts are typically on a net 30 day basis.   We use a percentage of aged receivable method and our write off history in estimating the allowance for bad debts.  We review the adequacy of our allowance for doubtful accounts on a monthly basis.  We are aggressive in our collection efforts resulting in a low number of write-offs annually.  Conditions that would lead an account to be considered uncollectible include customers filing bankruptcy and the exhaustion of all practical collection efforts.  We will use the necessary legal recourse to recover as much of the receivable as is practical under the law.  Allowance for doubtful accounts was $1.3 million and $1.0 million at December 31, 2014 and 2013, respectively.
Inventory Supplies, Policy [Policy Text Block]	Prepaid Shop Supplies
	Prepaid shop supplies consist mainly of parts for revenue equipment and are valued at the lower of average cost or market.
Property, Plant and Equipment, Policy [Policy Text Block]	Prepaid Tires, Property, Equipment, and Depreciation
	Property and equipment are reported at cost, net of accumulated depreciation. Maintenance and repairs are charged to operations as incurred.  Tires are capitalized separately from revenue equipment and are reported separately as “Prepaid tires” in the consolidated balance sheets and amortized over two years.  Depreciation expense of $1.1 million and $0.7 million for the years ended December 31, 2014 and 2013, respectively, has been included in communications and utilities in the consolidated statements of comprehensive income. Depreciation for financial statement purposes is computed by the straight-line method for all assets other than tractors.  We recognize depreciation expense on tractors at 125% declining balance method. New tractors are depreciated to salvage values of $15,000 while new trailers are depreciated to salvage values of $4,000.
	We changed to 150% declining balance depreciation from the historical 125% declining balance depreciation for tractors in 2009 due to lower used truck values, higher prices for new equipment, and uncertainty surrounding the reliability and resale value of tractors with 2010 emission-compliant engines. Effective July 1, 2013, we changed depreciation for tractors back to the historical 125% declining balance method as a stable used equipment market supported a return to our historical estimate of depreciation on tractor equipment over its expected useful life. Under the declining balance method, depreciation for each tractor is highest in the first year and declines in each year throughout the useful life. Changing to the 125% declining balance method from the 150% declining balance method increased operating income and decreased depreciation expense by $3.3 million ($0.02 per share, net of tax effect) during the year ended December 31, 2014.
	Lives of the assets are as follows:
		Years
	Land improvements and buildings	30-May
	Leasehold improvements	25-May
	Furniture and fixtures	5-Mar
	Shop and service equipment	10-Mar
	Revenue equipment	7-May
Property, Plant and Equipment, Impairment [Policy Text Block]	Impairment of Long-Lived Assets
	We periodically evaluate property and equipment and amortizable intangible assets for impairment upon the occurrence of events or changes in circumstances that indicate the carrying amount of assets may not be recoverable. Recoverability of assets to be held and used is evaluated by a comparison of the carrying amount of an asset group to future net undiscounted cash flows expected to be generated by the group. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount over which the carrying amount of the assets exceeds the fair value of the assets.  There were no impairment charges recognized during the years ended December 31, 2014, 2013, and 2012.
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value of Financial Instruments
	The fair values of cash and cash equivalents, trade receivables, held-to-maturity investments and accounts payable, which are recorded at cost, approximate fair value based on the short-term nature and high credit quality of these financial instruments. The fair value of long-term debt is equal to the carrying amount as all of the debt is variable rate debt at current market rates.
Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block]	Advertising Costs
	We expense all advertising costs as incurred.  Advertising costs are included in other operating expenses in the consolidated statements of comprehensive income. Advertising expense was $2.7 million, $0.9 million, and $1.0 million for the years ended December 31, 2014, 2013, and 2012, respectively.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill
	Goodwill is tested at least annually for impairment by applying a fair value based analysis in accordance with the authoritative accounting guidance on goodwill and other intangible assets.  Our annual assessment is conducted as of the end of September each year and no indicators requiring assessment were identified during the period from this assessment through year-end.  Management determined that no impairment charge was required for the years ended December 31, 2014, 2013, and 2012.
Intangible Assets, Finite-Lived, Policy [Policy Text Block]	Other Intangibles, Net
	Other intangibles, net consists primarily of a tradename, covenants not to compete, customer relationships, and real estate purchase options. All intangible assets determined to have finite lives are amortized over their estimated useful lives. The useful life of an intangible asset is the period over which the asset is expected to contribute directly or indirectly to future cash flows. See Notes 3 and 4 for additional information regarding intangible assets.
Commitments and Contingencies, Policy [Policy Text Block]	Contingent Consideration
	We estimate and record the acquisition date estimated fair value of contingent consideration as part of purchase price consideration for acquisitions. Additionally, each reporting period, we estimate changes in the fair value of contingent consideration, and any change in fair value is recognized in the consolidated statements of comprehensive income. An increase in the earn-out expected to be paid in connection with the GTI acquisition will result in a charge to operations in the year that the anticipated fair value of contingent consideration increases, while a decrease in the earn-out expected to be paid will result in a credit to operations in the year that the anticipated fair value of contingent consideration decreases. The estimate of the fair value of contingent consideration requires subjective assumptions to be made of future operating results, discount rates, and probabilities assigned to various potential operating result scenarios. Future revisions to these assumptions could materially change the estimate of the fair value of contingent consideration and, therefore, materially affect our future financial results.
Self-insurance Policy Text Block [Policy Text Block]	Insurance Accruals
	We are self-insured for auto liability, cargo loss and damage, bodily injury and property damage (BI/PD), and workers’ compensation. Insurance accruals reflect the estimated cost of claims, including estimated loss and loss adjustment expenses incurred but not reported, and not covered by insurance.  Accident and workers’ compensation accruals are based upon individual case estimates, including reserve development, and estimates of incurred-but-not-reported losses based upon our own historical experience and industry claim trends. Insurance accruals are not discounted. The cost of cargo and BI/PD insurance and claims are included in insurance and claims expense, while the costs of workers’ compensation insurance and claims are included in salaries, wages, and benefits in the consolidated statements of comprehensive income. Insurance accruals are presented as either current or non-current in the consolidated balance sheets based on our expectation of when payment will occur.
	Health insurance accruals reflect the estimated cost of health related claims, including estimated expenses incurred but not reported.  The cost of health insurance and claims are included in salaries, wages and benefits in the consolidated statements of comprehensive income.  Health insurance accruals of $6.7 million and $6.1 million are included in other accruals in the consolidated balance sheets as of December 31, 2014 and 2013, respectively.
Revenue Recognition, Policy [Policy Text Block]	Revenue and Expense Recognition
	Revenue is generally recognized when freight is delivered. Revenue is estimated for multiple-stop loads based on the number of miles run prior to the end of the accounting period. Revenue associated with loads delivered but not billed as of the end of an accounting period are estimated as part of revenue for that period. Fuel surcharge revenue charged to customers and freight brokerage services on freight brokered to third party carriers are earned consistent with the timing of freight revenues and included in operating revenue in the consolidated statements of comprehensive income. Fuel surcharge revenues were $170.4 million, $118.4 million, and $112.4 million for the years ended December 31, 2014, 2013, and 2012, respectively, and are included in operating revenue in the consolidated statement of comprehensive income. Revenue associated with freight brokerage services is recognized on a gross basis and as freight is delivered, as the Company is the primary obligor, although revenues are not material to the Company's consolidated operations.
Cost of Sales, Policy [Policy Text Block]	Driver wages and other direct operating expenses are recognized when freight is delivered and are estimated for multiple-stop loads at the end of an accounting period.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock-Based Compensation
	We have a stock-based compensation plan that provides for the grants of restricted stock awards to our employees. We account for restricted stock awards using the fair value method of accounting for stock-based compensation. Issuances of stock upon vesting of restricted stock are made from treasury stock. Compensation expense for restricted stock grants is recognized over the requisite service period of each award and is included in salaries, wages and benefits in the consolidated statements of comprehensive income. Total compensation of $6.5 million is being amortized over the requisite service period for each separate vesting period as if the award is, in substance, multiple awards.
Earnings Per Share, Policy [Policy Text Block]	Earnings per Share
	Basic earnings per share is based upon the weighted average common shares outstanding during each year.  Diluted earnings per share is based on the basic weighted earnings per share with additional weighted common shares for common stock equivalents. During the years ended December 31, 2012, 2013 and 2014, we granted shares of common stock to certain of our employees under the Company's 2011 Restricted Stock Award Plan. A reconciliation of the numerator (net income) and denominator (weighted average number of shares outstanding of the basic and diluted earnings per share (“EPS”) for 2014, 2013, and 2012 is as follows (in thousands, except per share data):
		2014
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	84,834	87,748	$	0.97
	Effect of restricted stock	—		175
	Diluted EPS	$	84,834	87,923	$	0.96
		2013
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	70,582	85,209	$	0.83
	Effect of restricted stock	—		232
	Diluted EPS	$	70,582	85,441	$	0.83
		2012
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	61,541	85,892	$	0.72
	Effect of restricted stock	—		309
	Diluted EPS	$	61,541	86,201	$	0.71
Income Tax, Policy [Policy Text Block]	Income Taxes
	We use the asset and liability method of accounting for income taxes.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statements carrying amount of existing assets and liabilities and their respective tax basis.  Deferred 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.  Such amounts are adjusted, as appropriate, to reflect changes in tax rates expected to be in effect when the temporary differences reverse.  The effect of a change in tax rates on deferred taxes is recognized in the period that the change in enacted.   A valuation allowance is recorded to reduce our deferred tax assets to the amount that is more likely than not to be realized.
	Pursuant to the authoritative accounting guidance on income taxes, when establishing a valuation allowance, we consider future sources of taxable income such as “future reversals of existing taxable temporary differences and carry-forwards” and “tax planning strategies”.  In the event we determine that the deferred tax assets will not be realized in the future, the valuation adjustment to the deferred tax assets is charged to earnings or accumulated other comprehensive loss based on the nature of the asset giving rise to the deferred tax asset and the facts and circumstances resulting in that conclusion.
	We calculate our current and deferred tax provision based on estimates and assumptions that could differ from the actual results reflected in income tax returns filed in subsequent years.  Adjustments based on filed returns are recorded when identified.
Income Tax Uncertainties, Policy [Policy Text Block]	We recognize the effect of income tax positions only if those positions are more likely than not of being sustained.  Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs.  We record interest and penalties related to unrecognized tax benefits in income tax expense.
Stockholders' Equity, Policy [Policy Text Block]	Comprehensive Income
	Comprehensive income consists of net income and other comprehensive income. Other comprehensive income refers to revenues, expenses, gains and losses that are not included in net income, but rather are recorded directly in stockholders' equity. For the years ended December 31, 2013 and 2012, comprehensive income consists of net income and unrealized gains on available-for-sale securities. For the year ended December 31, 2014, comprehensive income consisted of net income.
	During the years ended December 31, 2013 and 2012, there was $0.0 million, $1.3 million, and $1.8 million, respectively, of income recorded directly in stockholders' equity related entirely to an unrealized gain on available for sale securities due to the reversal of a previously recorded reserve to adjust certain investments to estimated fair value based on calls of investments at par.
Subsequent Events, Policy [Policy Text Block]	Subsequent Events
	We have evaluated events occurring subsequent to December 31, 2014 through the filing date of this Annual Report on Form 10-K for disclosure.

Significant_Accounting_Policie2

Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Significant Accounting Policies [Abstract]
Property, Plant and Equipment [Table Text Block]
	Lives of the assets are as follows:
		Years
	Land improvements and buildings	30-May
	Leasehold improvements	25-May
	Furniture and fixtures	5-Mar
	Shop and service equipment	10-Mar
	Revenue equipment	7-May
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block]	A reconciliation of the numerator (net income) and denominator (weighted average number of shares outstanding of the basic and diluted earnings per share (“EPS”) for 2014, 2013, and 2012 is as follows (in thousands, except per share data):
		2014
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	84,834	87,748	$	0.97
	Effect of restricted stock	—		175
	Diluted EPS	$	84,834	87,923	$	0.96
		2013
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	70,582	85,209	$	0.83
	Effect of restricted stock	—		232
	Diluted EPS	$	70,582	85,441	$	0.83
		2012
		Net Income (numerator)		Shares (denominator)	Per Share Amount
	Basic EPS	$	61,541	85,892	$	0.72
	Effect of restricted stock	—		309
	Diluted EPS	$	61,541	86,201	$	0.71

Acquisition_of_Gordon_Trucking1

Acquisition of Gordon Trucking, Inc. (Tables)	12 Months Ended
	Dec. 31, 2014
Acquisition of Gordon Trucking, Inc. [Abstract]
Business Acquisition, Pro Forma Information [Table Text Block]	The following unaudited pro forma consolidated results of operations for the years ended December 31, 2013 and 2012 assume that the acquisition of GTI occurred as of January 1, 2012.
		Year ended
		31-Dec-13				December 31, 2012
		(in thousands)
	Operating revenue	$	961,525			$	972,340
	Net income	90,821				64,769
Allocation of Purchase Price [Table Text Block]	The allocation of the purchase price is detailed in the tables below. The goodwill recognized represents expected synergies from combining our operations with those of GTI, as well as other intangible assets that did not meet the criteria for separate recognition. All tax goodwill recognized in the Transaction is deductible for tax purposes over 15 years.
	ALLOCATION OF PURCHASE PRICE	(in thousands)
	Cash paid (before netting $20 million cash acquired)				$	130,900
	Value of common stock issued (2.86 million shares)				41,100
	Total fair value of consideration transferred (before netting $20 million cash acquired), excluding debt assumed				172,000
	Allocated to:
	Historical book value of GTI's assets and liabilities	$	92,125
	Adjustments to recognize assets and liabilities at acquisition-date fair value:
	Property, plant, and equipment	(17,912		)
	Other assets	3,450
	Liabilities	(18,576		)
	Fair value of tangible net assets acquired				59,087
	Identifiable intangibles at acquisition-date fair value				19,042
	Excess of consideration transferred over the net amount of assets and liabilities recognized, including $13.6 million attributable to the fair value of a potential earn-out obligation (goodwill)				$	93,871
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The assets and liabilities associated with GTI were recorded at their fair values as of the acquisition date and the amounts are as follows:
		(in thousands)
	Cash and cash equivalents	$	21,485
	Accounts receivable	45,679
	Other current assets	14,371
	Property and equipment	189,409
	Other non-current assets	3,916
	Intangible assets	19,042
	Goodwill	93,871
	Total assets	387,773
	Accounts payable and accrued expenses	(29,165		)
	Insurance accruals	(23,821		)
	Long-term debt	(147,942		)
	Other accruals	(14,845		)
	Total consideration transferred	$	172,000
Total Purchase Price Consideration [Table Text Block]
	TOTAL PURCHASE PRICE CONSIDERATION	(in thousands)
	Cash paid pursuant to Stock Purchase Agreement	$	115,900
	Cash paid pursuant to an Asset Purchase Agreement	15,000
	Cash acquired included in historical book value of GTI assets and liabilities	(20,000		)
	Net cash paid at closing	$	110,900
	Common stock issued (par value of $0.01)	$	41,100
	Debt assumption	148,000
		$	300,000
Schedule of Business Acquisitions by Acquisition, Equity Interest Issued or Issuable [Table Text Block]	The total potential earn-out is $20.0 million with maximum amounts payable each year as follows:
			(in thousands)
	2014		$	6,000
	2015		6,000
	2016-2017		8,000
			$	20,000

Intangible_Assets_and_Goodwill1

Intangible Assets and Goodwill (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets [Table Text Block]
		2014
		Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
			(in thousands)
	Customer relationships	20	$	7,600	$	428	$	7,172
	Tradename	6	7,400		1,388		6,012
	Covenants not to compete	10	3,100		351		2,749
	Real estate options	2.2	942		495		447
			$	19,042	$	2,662	$	16,380
		2013
		Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
			(in thousands)
	Customer relationships	20	$	7,600	$	48	$	7,552
	Tradename	6	7,400		154		7,246
	Covenants not to compete	10	3,100		39		3,061
	Real estate options	2.2	942		55		887
			$	19,042	$	296	$	18,746
Schedule of Goodwill [Table Text Block]	Changes in carrying amount of goodwill were as follows:
		(in thousands)
	Balance at January 1, 2013	4,815
	Acquisitions	93,871
	Balance at December 31, 2013	98,686
	Acquisition adjustments	1,526
	Balance at December 31, 2014	100,212

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2014
Line of Credit, Long-Term Debt [Abstract]
Schedule of Maturities of Long-term Debt [Table Text Block]	Long term debt consisted of the following at December 31 (in thousands):
		31-Dec-14		December 31, 2013
	Long-term debt	$	24,600	$	75,000

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	Deferred tax assets and liabilities as of December 31 are as follows:
			2014				2013
			(in thousands)
	Deferred income tax assets:
	Allowance for doubtful accounts		$	478			$	291
	Accrued expenses		8,969				6,980
	Stock-based compensation		677				648
	Insurance accruals		25,395				26,000
	State net operating loss carryforward		3,241				682
	Indirect tax benefits of unrecognized tax benefits		4,595				4,846
	Other		772				1,207
	Total gross deferred tax assets		44,127				40,654
	Less valuation allowance		—				—
	Net deferred tax assets		44,127				40,654
	Deferred income tax liabilities:
	Property and equipment		(125,611		)		(85,849		)
	Goodwill		(2,385		)		(1,835		)
	Prepaid expenses		(2,969		)		(741		)
			(130,965		)		(88,425		)
	Net deferred tax liability		$	(86,838	)		$	(47,771	)
Summary of Deferred Tax Assets (Liabilities) by Balance Sheet Classification [Table Text Block]	The deferred tax amounts above have been classified in the accompanying consolidated balance sheets at December 31, 2014 and 2013 as follows:
			2014				2013
			(in thousands)
	Current assets, net		$	14,767			$	14,177
	Long-term liabilities, net		(101,605		)		(61,948		)
			$	(86,838	)		$	(47,771	)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Income tax expense consists of the following:
			2014				2013			2012
			(in thousands)
	Current income taxes:
	Federal		$	6,860			$	30,560		38,148
	State		855				1,152			1,636
			7,715				31,712			39,784
	Deferred income taxes:
	Federal		36,706				7,192			(5,890		)
	State		2,362				3,070			140
			39,068				10,262			(5,750		)
	Total		$	46,783			$	41,974		$	34,034
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	The income tax provision differs from the amount determined by applying the U.S. federal tax rate as follows:
			2014				2013			2012
			(in thousands)
	Federal tax at statutory rate (35%)		$	46,066			$	39,395		33,451
	State taxes, net of federal benefit		2,737				3,242			1,554
	Non-taxable interest income		(7		)		(20		)	(48		)
	Uncertain income tax penalties and interest, net		(993		)		(766		)	(616		)
	Other		(1,020		)		123			(307		)
			$	46,783			$	41,974		$	34,034
Reconciliation of Unrecognized Tax Benefits [Table Text Block]	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
		2014				2013
		(in thousands)
	Balance at January 1,	$	13,432			$	15,723
	Additions based on tax positions related to current year	983				843
	Additions for tax positions of prior years	277				616
	Reductions for tax positions of prior years	—				(300		)
	Reductions due to lapse of applicable statute of limitations	(2,060		)		(1,984		)
	Settlements	—				(1,466		)
	Balance at December 31,	$	12,632			$	13,432

Operating_Leases_Operating_Lea1

Operating Leases Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2014
Leases [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Future minimum lease payments related to the operating leases described above, as of December 31, 2014, are as follows:
		Amounts (in thousands)
		Related Party		Non-Related Party		Total
	2015	$	6,580	$	507	$	7,087
	2016	5,010		206		5,216
	2017	3,718		135		3,853
	2018	3,408		—		3,408
	Thereafter	—		—		—
	Total	$	18,716	$	848	$	19,564

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Stock-Based Compensation [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	The following table summarizes our restricted stock award activity for the years ended December 31, 2014, 2013 and 2012. The vesting date for the majority of awards vested in 2014 was June 1, 2014. The fair value of awards vested during 2014, 2013 and 2012 was $1.1 million, $1.1 million and $1.0 million, respectively.
		2014
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	211.5		$	13.81
	Granted	52.2		25.4
	Vested	(75.6	)	14.34
	Forfeited	(5.0	)	13.57
	Outstanding (unvested) at end of year	183.1		$	16.78
		2013
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	276.8		$	13.57
	Granted	23		17.28
	Vested	(75.3	)	14.04
	Forfeited	(13.0	)	13.57
	Outstanding (unvested) at end of year	211.5		$	13.81
		2012
		Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
	Unvested at beginning of year	351		$	13.57
	Granted	—		—
	Vested	(70.2	)	13.57
	Forfeited	(4.0	)	13.57
	Outstanding (unvested) at end of year	276.8		$	13.57

Related_Party_Tables

Related Party (Tables)	12 Months Ended
	Dec. 31, 2014
Related Party [Abstract]
Schedule of Related Party Transactions [Table Text Block]	e related payments (receipts) with related parties for the period after the close of the Transaction, November 11, 2013 through December 31, 2013 and for the year ended December 31, 2014 were as follows:
		31-Dec-14			November 11, 2013 to December 31, 2013
		(in thousands)
	Payments for tractor purchases	$	46,562		$	6,884
	Receipts for tractor sales	(15,564		)	(2,138		)
	Receipts for trailer sales	(103		)	—
	Revenue equipment lease payments	6,842			930
	Payments for parts and services	5,906			1,058
	Terminal lease payments	3,930			572
	Terminal lease purchase option payment	2,825			—
	Administrative services receipts	(516		)	(98		)
		$	49,882		$	7,208

Quarterly_Financial_Informatio1

Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information (Unaudited) [Abstract]
Schedule of Quarterly Financial Information [Table Text Block]
			First		Second		Third		Fourth
			(In Thousands, Except Per Share Data)
	Year ended December 31, 2014
	Operating revenue		$	224,481	$	226,785	$	217,092	$	202,997
	Operating income		20,688		40,642		36,290		34,247
	Income before income taxes		20,569		40,616		36,214		34,216
	Net income		14,079		26,472		22,737		21,544
	Net income per share, basic		0.16		0.3		0.26		0.25
	Net income per share, diluted		0.16		0.3		0.26		0.25
	Year ended December 31, 2013(1)
	Operating revenue		$	134,273	$	133,992	$	130,645	$	183,348
	Operating income		30,207		29,375		26,000		26,720
	Income before income taxes		30,330		29,504		26,126		26,596
	Net income		19,734		19,138		15,868		15,842
	Net income per share, basic		0.23		0.23		0.19		0.18
	Net income per share, diluted		0.23		0.23		0.19		0.18
	-1	We acquired 100% of the outstanding stock of GTI on November 11, 2013 and therefore our operating results for the fourth quarter of 2013 includes the operating results of GTI for the period of November, 11, 2013 to December 31, 2013.

Significant_Accounting_Policie3

Significant Accounting Policies Segment Information (Details)	Dec. 31, 2014
	segments
Significant Accounting Policies [Abstract]
Numer of Segments	1

Significant_Accounting_Policie4

Significant Accounting Policies Cash and Cash Equivalents (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Significant Accounting Policies [Abstract]
Restricted Cash and Cash Equivalents		$10.60
Restricted Cash and Investments, Current		0.1
Restricted Cash and Cash Equivalents, Noncurrent	$12.60	$10.50

Significant_Accounting_Policie5

Significant Accounting Policies Investments (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Significant Accounting Policies [Abstract]
Held-to-maturity Securities	$1.40	$1.40

Significant_Accounting_Policie6

Significant Accounting Policies Trade Receivables and Allowance for Doubtful Accounts (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified	D
Significant Accounting Policies [Abstract]
Customer credit terms (in days)	30
Allowance for Doubtful Accounts Receivable, Current	$1.30	$1

Significant_Accounting_Policie7

Significant Accounting Policies Property, Equipment and Depreciation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment
Amortization Period of Tires	2 years
Accumulated Depreciation, Depletion and Amortization, Property, Plant and Equipment, Period Increase (Decrease)	$3,300,000
change in estimate financial impact, per share, net of tax	0.02
Communications and Utilities Expense [Member]
Property, Plant and Equipment
Depreciation	1,100,000	700,000
Tractors [Member]
Property, Plant and Equipment
Property, Plant, and Equipment, Salvage Value	15,000
Trailers [Member]
Property, Plant and Equipment
Property, Plant, and Equipment, Salvage Value	$4,000
Minimum [Member] | Land Improvements and Buildings [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Shop and Service Equipment [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Revenue Equipment [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Maximum [Member] | Land Improvements and Buildings [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	30 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	25 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	5 years
Maximum [Member] | Shop and Service Equipment [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	10 years
Maximum [Member] | Revenue Equipment [Member]
Property, Plant and Equipment
Property, Plant and Equipment, Useful Life	7 years

Significant_Accounting_Policie8

Significant Accounting Policies Impairment of Long-Lived Assets (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Asset Impairment Charges	$0	$0	$0

Significant_Accounting_Policie9

Significant Accounting Policies Advertising Costs (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Advertising Expense	$2.70	$0.90	$1

Recovered_Sheet1

Significant Accounting Policies Goodwill (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Goodwill, Impairment Loss	$0	$0	$0

Recovered_Sheet2

Significant Accounting Policies Self-Insurance Accruals (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Significant Accounting Policies [Abstract]
Health insurance reserves	$6.70	$6.10

Recovered_Sheet3

Significant Accounting Policies Revenue and Expense Recognition (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Fuel surcharge revenue	$170.40	$118.40	$112.40

Recovered_Sheet4

Significant Accounting Policies Stock-based compensation (Details) (USD $)	12 Months Ended			76 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2018
Significant Accounting Policies [Abstract]
Stock-based Compensation	$1,134	$1,184	$2,379	$6,500

Recovered_Sheet5

Significant Accounting Policies Earnings per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Accounting Policies [Abstract]
Net income	$21,544	$22,737	$26,472	$14,079	$15,842	$15,868	$19,138	$19,734	$84,834	$70,582	$61,541
Weighted Average Number of Shares Outstanding, Basic									87,748	85,209	85,892
Basic EPS	$0.25	$0.26	$0.30	$0.16	$0.18	$0.19	$0.23	$0.23	$0.97	$0.83	$0.72
Dilutive Securities, Effect on Basic Earnings Per Share, Including Options and Restrictive Stock Units											0
Incremental Common Shares Attributable to Share-based Payment Arrangements									175	232	309
Net Income (Loss) Available to Common Stockholders, Diluted									$84,834	$70,582	$61,541
Weighted Average Number of Shares Outstanding, Diluted									87,923	85,441	86,201
Diluted EPS	$0.25	$0.26	$0.30	$0.16	$0.18	$0.19	$0.23	$0.23	$0.96	$0.83	$0.71

Recovered_Sheet6

Significant Accounting Policies Income Taxes (Details)	12 Months Ended
	Dec. 31, 2014
Significant Accounting Policies [Abstract]
PortionOfTaxBenefitRecordedPositionsMoreLikelyThanNotToBeSustained	50.00%

Recovered_Sheet7

Significant Accounting Policies Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, net of tax	$0	$1,284	$1,797
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, net of tax	$0	$1,284	$1,797

Concentrations_of_Credit_Risk_1

Concentrations of Credit Risk and Major Customers (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
									Customer
Concentration Risk
Concentration of risk, number of customers									5
Entity-Wide Revenue, Major Customer, Amount	$202,997	$217,092	$226,785	$224,481	$183,348	$130,645	$133,992	$134,273	$871,355	$582,257	$545,745
Sales Revenue, Services, Net [Member] | Customer Concentration Risk [Member]
Concentration Risk
Concentration of risk, number of customers									0	0	1
Baseline percentage for customer concentration of risk									10.00%	10.00%	10.00%
Concentration Risk, Percentage									32.00%	32.00%	39.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk
Concentration Risk, Percentage									28.00%	20.00%

Acquisition_of_Gordon_Trucking2

Acquisition of Gordon Trucking, Inc. (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2017	Nov. 01, 2016	Dec. 31, 2015	Nov. 01, 2015	Nov. 01, 2014	Nov. 11, 2013
Business Acquisition [Line Items]
change in estimate financial impact, per share, net of tax	$0.02
Total acquisition purchase price		300,000,000
Payments to Acquire Intangible Assets		-15,000,000
Fair Value of Stock in Escrow Related To Acquisition of Business								24,000,000
Fair Value of Cash in Escrow as a Result of Business Combination								6,000,000
Noncash or Part Noncash Acquisition, Debt Assumed		148,000,000
Line of Credit Facility, Maximum Borrowing Capacity		250,000,000		175,000,000		200,000,000	225,000,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	6,000,000	20,000,000	8,000,000		6,000,000			20,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net								1,500,000
Cash Acquired from Acquisition		-20,000,000
Business Combination, Acquisition Related Costs		2,200,000
Gordon Trucking Company, Inc [Member]
Business Acquisition [Line Items]
Total acquisition purchase price		$285,000,000

Acquisition_of_Gordon_Trucking3

Acquisition of Gordon Trucking, Inc. Allocation of Purchase Price (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Business Acquisition [Line Items]
Cash Acquired from Acquisition	($20,000,000)
Cash paid (before netting $20 million cash acquired)	115,900,000
Stock Issued During Period, Shares, Acquisitions	2,860,000
Earn Out Agreement	13,600,000	13,600,000
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Gordon Trucking Company, Inc [Member]
Business Acquisition [Line Items]
Cash paid (before netting $20 million cash acquired)	130,900,000
Value of common stock issued (2.86 million shares)	41,100,000
Total fair value of consideration transferred (before netting $20 million cash acquired), excluding debt assumed	172,000,000
Historical book value of GTI assets and liabilities	92,125,000
Property, Plant, and Equipment	-17,912,000
Other assets	3,450,000
Liabilities	-18,576,000
Fair value of tangible net assets acquired	59,087,000
Identifiable intangibles at acquisition-date fair value	19,042,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	$93,871,000

Acquisition_of_Gordon_Trucking4

Acquisition of Gordon Trucking, Inc. Total Purchase Price Consideration (Details) (USD $)	3 Months Ended	12 Months Ended
Share data in Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Acquisition of Gordon Trucking, Inc [Abstract]
Payments to Acquire Businesses, Gross			$115,900,000
Payments to Acquire Intangible Assets			15,000,000
Cash Acquired from Acquisition			-20,000,000
Payments to Acquire Businesses, Net of Cash Acquired	3,000,000	3,011,000	110,900,000	0
Business Combination, Acquisition Related Costs			148,000,000
Common stock issued (par value of $0.01)			41,100
Total acquisition purchase price			$300,000,000

Acquisition_of_Gordon_Trucking5

Acquisition of Gordon Trucking, Inc. Potential Earn Out Schedule (Details) (USD $)	Dec. 31, 2017	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 11, 2013
Acquisition of Gordon Trucking [Abstract]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$8,000,000	$6,000,000	$6,000,000	$20,000,000	$20,000,000
Earn Out Agreement			13,600,000	13,600,000
Business Combination, Contingent Consideration, Liability, Current			2,300,000
business combination contingent consideration fair value non-current			$11,300,000	$13,600,000

Acquisition_of_Gordon_Trucking6

Acquisition of Gordon Trucking, Inc. Assets acquired and liabilities assumed (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2014	Nov. 11, 2013	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Assets of business combination as percentage total assets	0.486
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Cash and cash equivalents	$17,763	$17,303		$119,838	$139,770
Other current assets	11,061	8,992
Property, Plant and Equipment, Gross	622,864	678,566
Other Assets, Noncurrent	13,850	12,611
Finite-Lived Intangible Assets, Gross	19,042	19,042
Goodwill	98,686	100,212		4,815
Assets	724,841	759,994
Other long-term liabilities	13,618	11,318
Revenues of business combination as percentage of total revenues	0.096
Gordon Trucking Company, Inc [Member]
Business Acquisition [Line Items]
Cash and cash equivalents			21,485
Accounts Receivable, Net			45,679
Other current assets			14,371
Property, Plant and Equipment, Gross			189,409
Other Assets, Noncurrent			3,916
Finite-Lived Intangible Assets, Gross			19,042
Goodwill			93,871
Assets			387,773
Accounts Payable and Accrued Liabilities			-29,165
Self Insurance Reserve			-23,821
Long-term Debt			-147,942
Other long-term liabilities			-14,845
Total consideration transferred to acquire a business	$172,000

Acquisition_of_Gordon_Trucking7

Acquisition of Gordon Trucking, Inc. Acquisition pro forma information (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Acquisition of Gordon Trucking, Inc. [Abstract]
Business Acquisition, Pro Forma Revenue	$961,525	$972,340
Business Acquisition, Pro Forma Net Income (Loss)	$90,821	$64,769

Intangible_Assets_and_Goodwill2

Intangible Assets and Goodwill (Details) (USD $)	2 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$19,042,000	$19,042,000	$19,042,000
Finite-Lived Intangible Assets, Accumulated Amortization	296,000	2,662,000	296,000
Finite-Lived Intangible Assets, Accumulated Amortization	296,000	2,366,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months		2,367,000
Finite-Lived Intangible Assets, Net	18,746,000	16,380,000	18,746,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two		1,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three		1,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four		1,900,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five		1,800,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		20 years	20 years
Finite-Lived Intangible Assets, Gross	7,600,000	7,600,000	7,600,000
Finite-Lived Intangible Assets, Accumulated Amortization	48,000	428,000	48,000
Finite-Lived Intangible Assets, Net	7,552,000	7,172,000	7,552,000
Real Estate [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		2 years 2 months 12 days	2 years 2 months 12 days
Finite-Lived Intangible Assets, Gross	942,000	942,000	942,000
Finite-Lived Intangible Assets, Accumulated Amortization	55,000	495,000	55,000
Finite-Lived Intangible Assets, Net	887,000	447,000	887,000
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		10 years	10 years
Finite-Lived Intangible Assets, Gross	3,100,000	3,100,000	3,100,000
Finite-Lived Intangible Assets, Accumulated Amortization	39,000	351,000	39,000
Finite-Lived Intangible Assets, Net	3,061,000	2,749,000	3,061,000
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		6 years	6 years
Finite-Lived Intangible Assets, Gross	7,400,000	7,400,000	7,400,000
Finite-Lived Intangible Assets, Accumulated Amortization	154,000	1,388,000	154,000
Finite-Lived Intangible Assets, Net	$7,246,000	$6,012,000	$7,246,000

Intangible_Assets_and_Goodwill3

Intangible Assets and Goodwill Changes carrying amount of goodwill (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2017	Dec. 31, 2015	Nov. 11, 2013
Intangible Assets and Goodwill [Abstract]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		$6,000,000	$20,000,000		$8,000,000	$6,000,000	$20,000,000
amount recorded for unsettled working capital adjustment							1,500,000
change in estimate financial impact, per share, net of tax		0.02
Goodwill, Beginning balance	98,686,000	98,686,000	4,815,000
Goodwill, Acquired During Period		1,526,000	93,871,000
Goodwill, Ending Balance		100,212,000	98,686,000	4,815,000
Cash Acquired from Acquisition			-20,000,000
Payments to Acquire Businesses, Net of Cash Acquired	3,000,000	3,011,000	110,900,000	0
Goodwill, Impairment Loss		$0	$0	$0

LongTerm_Debt_Details

Long-Term Debt (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Nov. 01, 2016	Nov. 01, 2015	Jan. 31, 2015	Nov. 01, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Long-term Line of Credit	$24,600,000			$0		$75,000,000
Debt Instrument, Interest Rate, Stated Percentage	0.79%					0.79%
Line of Credit Facility, Maximum Borrowing Capacity		175,000,000	200,000,000		225,000,000	250,000,000
Debt Instrument, Covenant, Leverage Ratio	2
Debt Covenant, Minimum Net Income Requirement	1
Line of Credit Facility, Remaining Borrowing Capacity	196,000,000					169,500,000
Debt Instrument, Covenant Description	200,000,000
Line of Credit Facility, Amount Outstanding	$4,400,000					$5,500,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.63%
Prime Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%

Accident_and_Workers_Compensat1

Accident and Workers' Compensation Insurance Liabilities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Excess Insurance Coverage Limit	$75
Trust fund requirements	0.7
Restricted Cash and Cash Equivalents, Noncurrent	12.6	10.5
Restricted Cash and Investments, Noncurrent	0.6
Restricted Cash and Investments, Current		0.1
Letters of Credit Outstanding, Amount	7.5
Auto liability retention limit minimum [Member]
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Auto liability retention limit	0.5
Auto liability retention limit maximum [Member] [Member]
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Auto liability retention limit	2
workers compensation retention limit minimum [Member]
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Workers compensation retention limit	0.5
workers compensation retention limit maximum [Member]
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Workers compensation retention limit	1
Gordon Trucking Company, Inc [Member]
Accident and Workers' Compensation Insurance Liabilities [Line Items]
Trust fund requirements	0.7
Restricted Cash and Cash Equivalents, Noncurrent	$0.70

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
PortionOfTaxBenefitRecordedPositionsMoreLikelyThanNotToBeSustained	50.00%
Income Tax Uncertainties [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$8,000,000	$8,600,000
Unrecognized Tax Benefits, Period Increase (Decrease)	-800,000	-2,300,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	5,700,000	6,700,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1,000,000	700,000	600,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	-700,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	-1,700,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance beginning of period	13,432,000	15,723,000
Additions based on tax positions related to current year	983,000	843,000
Additions for tax positions of prior years	277,000	616,000
Reductions for tax positions of prior years	0	-300,000
Reductions due to lapse of applicable statute of limitations	-2,060,000	-1,984,000
Settlements	0	-1,466,000
Balance end of period	12,632,000	13,432,000	15,723,000
Valuation Allowance [Abstract]
Valuation Allowance, Amount	$0	$0

Income_Taxes_Income_Tax_Rate_R

Income Taxes Income Tax Rate Reconciliation (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Income Tax Reconciliation, Income Tax Expense (Benefit), at Federal Statutory Income Tax Rate	$46,066	$39,395	$33,451
Income Tax Reconciliation, State and Local Income Taxes	2,737	3,242	1,554
Income Tax Reconciliation, Tax Exempt Income	-7	-20	-48
Income Tax Reconciliation, Tax Contingencies	-993	-766	-616
Income Tax Reconciliation, Other Adjustments	-1,020	123	-307
Income Tax Expense (Benefit)	$46,783	$41,974	$34,034

Income_Taxes_Income_Tax_Expens

Income Taxes Income Tax Expense Detail (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Current Federal Tax Expense (Benefit)	$6,860	$30,560	$38,148
Current State and Local Tax Expense (Benefit)	855	1,152	1,636
Current Income Tax Expense (Benefit)	7,715	31,712	39,784
Deferred Federal Income Tax Expense (Benefit)	36,706	7,192	-5,890
Deferred State and Local Income Tax Expense (Benefit)	2,362	3,070	140
Deferred Income Tax Expense (Benefit)	39,068	10,262	-5,750
Income Tax Expense (Benefit)	$46,783	$41,974	$34,034

Income_Taxes_Deferred_Tax_Summ

Income Taxes Deferred Tax Summary (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Income Taxes [Abstract]
Net deferred tax assets	$14,767	$14,177
Deferred Tax Liabilities, Noncurrent	-101,605	-61,948
Deferred Tax Assets (Liabilities), Net	($86,838)	($47,771)

Income_Taxes_Deferred_tax_asse

Income Taxes Deferred tax assets and liabilties (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Income Taxes [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	$478	$291
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	8,969	6,980
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	677	648
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance	25,395	26,000
Deferred Tax Assets, Operating Loss Carryforwards	3,241	682
Deferred Tax Assets, Tax Deferred Expense	4,595	4,846
Deferred Tax Assets, Other	772	1,207
Deferred Tax Assets, Gross	44,127	40,654
Deferred Tax Assets, Valuation Allowance	0	0
Deferred Tax Assets, Net	44,127	40,654
Deferred Tax Liabilities, Property, Plant and Equipment	-125,611	-85,849
Deferred Tax Liabilities, Goodwill and Intangible Assets	-2,385	-1,835
Deferred Tax Liabilities, Deferred Expense	-2,969	-741
Deferred Income Tax Liabilities	-130,965	-88,425
Deferred Tax Assets (Liabilities), Net	($86,838)	($47,771)

Operating_Leases_Operating_Lea2

Operating Leases Operating Leases (Details) (USD $)	0 Months Ended	2 Months Ended	12 Months Ended
	8-May-14	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months			$7,087,000
Operating Leases, Future Minimum Payments, Due in Two Years			5,216,000
Operating Leases, Future Minimum Payments, Due in Three Years			3,853,000
Operating Leases, Future Minimum Payments, Due in Four Years			3,408,000
Operating Leases, Future Minimum Payments, Due Thereafter			0
Operating Leases, Future Minimum Payments Due			19,564,000
Operating Leases, Rent Expense			8,300,000	1,300,000
Related Party Transaction, Expenses from Transactions with Related Party		7,208,000	49,882,000
Payments to Acquire Property, Plant, and Equipment	2,800,000		204,973,000	135,195,000	66,811,000
Related Party [Member]
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months			6,580,000
Operating Leases, Future Minimum Payments, Due in Two Years			5,010,000
Operating Leases, Future Minimum Payments, Due in Three Years			3,718,000
Operating Leases, Future Minimum Payments, Due in Four Years			3,408,000
Operating Leases, Future Minimum Payments, Due Thereafter			0
Operating Leases, Future Minimum Payments Due			18,716,000
Operating Leases, Rent Expense		930,000	6,842,000	930,000
Payments to Acquire Property, Plant, and Equipment	2,800,000	0
Equipment Leased to Other Party [Member]
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months			507,000
Operating Leases, Future Minimum Payments, Due in Two Years			206,000
Operating Leases, Future Minimum Payments, Due in Three Years			135,000
Operating Leases, Future Minimum Payments, Due in Four Years			0
Operating Leases, Future Minimum Payments, Due Thereafter			0
Operating Leases, Future Minimum Payments Due			848,000
Terminal Facilities [Member]
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense			4,200,000	700,000
Terminal Facilities [Member] | Related Party [Member]
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense		572,000	3,930,000
Related Party Transaction, Expenses from Transactions with Related Party			$3,900,000	$600,000

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 10, 2012	Sep. 30, 2001
Share Repurchases [Abstract]
Stock Repurchase Shares Authorized	3,225			5,000	15,400
Treasury Stock, Shares, Acquired	0		1,775
Repurchases of Common Stock	$0	$0	$24,190

Stockholders_Equity_Dividends_

Stockholders' Equity Dividends Paid (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity Attributable to Parent [Abstract]
Payments of Dividends	$85	$7	$6.90	$6.90

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended	12 Months Ended			76 Months Ended	6 Months Ended
	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2018	Dec. 31, 2013	Feb. 26, 2015	Jul. 11, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$1,100,000	$1,100,000	$1,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		$13.57	$13.57	$13.57
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	20.00%
Stock-based Compensation		1,134,000	1,184,000	2,379,000	6,500,000
Restricted Stock Shares Authorized								900,000
Stock Issued During Period, Shares, Restricted Stock Award, Gross	351,000			0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized		$1,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$13.57	$16.78	$13.81	$13.57		$13.81
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested at beginning of year, Number of Restricted Stock Awards (in shares)		212,000	277,000	351,000			175,100
Unvested at beginning of year, Weighted Average Grant Date Fair Value (in dollars)		$13.81	$13.57	$13.57	$13.57
Share-based Compensation Arrangements by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		52,000	23,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$25.40	$17.28	$0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period		-76,000	-75,000	-70,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value		$14.34	$14.04	$13.57
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period		-5,000	-13,000	-4,000
Outstanding (unvested) at end of year, Number of Restricted Stock Awards (in shares)	351,000	183,100	212,000	277,000		212,000	175,100
Outstanding (unvested) at end of year, Weighted Average Grant Date Fair Value (in dollars)	$13.57	$16.78	$13.81	$13.57		$13.81
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (in years)		1 year 5 months 21 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
weighted average fair value price of stock awards upper		$27.47				$18.18
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
weighted average fair value price of stock awards lower		$21.72				$13.86

Profit_Sharing_Plan_and_Retire1

Profit Sharing Plan and Retirement Plan (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Profit Sharing Plan and Retirement Plan [Abstract]
Defined Contribution Plan, Cost Recognized	$2.10	$0.40	$0.70

Related_Party_Details

Related Party (Details) (USD $)	0 Months Ended	2 Months Ended	12 Months Ended
	8-May-14	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transaction [Line Items]
Due to Related Parties, Current		$1,300,000	$100,000	$1,300,000
Operating Leases, Rent Expense			8,300,000	1,300,000
Payments to Acquire Property, Plant, and Equipment	2,800,000		204,973,000	135,195,000	66,811,000
Related Party Transaction, Expenses from Transactions with Related Party		7,208,000	49,882,000
Related Party [Member]
Related Party Transaction [Line Items]
Payments for tractor purchase		6,884,000	46,562,000
proceeds from sale of trailers		0	-103,000
proceeds from sale of tractors		-2,138,000	-15,564,000
Payments for parts and services		1,058,000	5,906,000
Operating Leases, Rent Expense		930,000	6,842,000	930,000
Payments to Acquire Property, Plant, and Equipment	2,800,000	0
Administrative Services Revenue		-98,000	-516,000
Terminal Facilities [Member]
Related Party Transaction [Line Items]
Operating Leases, Rent Expense			4,200,000	700,000
Terminal Facilities [Member] | Related Party [Member]
Related Party Transaction [Line Items]
Operating Leases, Rent Expense		572,000	3,930,000
Related Party Transaction, Expenses from Transactions with Related Party			$3,900,000	$600,000

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]
Unrecorded Unconditional Purchase Obligation	$85.90

Quarterly_Financial_Informatio2

Quarterly Financial Information (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information (Unaudited) [Abstract]
OPERATING REVENUE	$202,997	$217,092	$226,785	$224,481	$183,348	$130,645	$133,992	$134,273	$871,355	$582,257	$545,745
Operating Income (Loss)	34,247	36,290	40,642	20,688	26,720	26,000	29,375	30,207	131,868	112,302	94,901
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	34,216	36,214	40,616	20,569	26,596	26,126	29,504	30,330	131,617	112,556	95,575
Net income	$21,544	$22,737	$26,472	$14,079	$15,842	$15,868	$19,138	$19,734	$84,834	$70,582	$61,541
Basic EPS	$0.25	$0.26	$0.30	$0.16	$0.18	$0.19	$0.23	$0.23	$0.97	$0.83	$0.72
Diluted EPS	$0.25	$0.26	$0.30	$0.16	$0.18	$0.19	$0.23	$0.23	$0.96	$0.83	$0.71

Subsequent_Events_Subsequent_E

Subsequent Events Subsequent Events (Details) (USD $)	Jan. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Subsequent Events [Abstract]
Long-term Line of Credit	$0	$24,600	$75,000

Schedule_II_Valuation_of_Quali1

Schedule II Valuation of Qualifying Accounts and Reserves (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Valuation Allowances and Reserves, Balance Beginning of Period	$1,028	$829	$791
Valuation Allowances and Reserves, Charged to Cost and Expense	466	-27	205
Valuation Allowances and Reserves, Charged to Other Accounts	0	238	0
Valuation Allowances and Reserves, Deductions	232	12	167
Valuation Allowances and Reserves, Balance End of Period	$1,262	$1,028	$829