10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

[X]   QUARTERLY REPORT UNDER SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934

For quarter ended June 30, 2015

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                to

Commission file number 0-15087

HEARTLAND EXPRESS, INC.

(Exact Name of Registrant as Specified in Its Charter)

Nevada	93-0926999
(State or Other Jurisdiction	(I.R.S. Employer
of Incorporation or organization)	Identification No.)
901 North Kansas Avenue, North Liberty, Iowa	52317
(Address of Principal Executive Offices)	(Zip Code)

319-626-3600

(Registrant’s telephone number, including area code)

Registrant's telephone number, including area code (319) 626-3600

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yes [X] No [  ]

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes [X] No [  ]

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer, or a smaller reporting company. See definition of “large accelerated filer,” “accelerated filer,” and “smaller reporting company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer [X] Accelerated filer [ ] Non-accelerated filer [ ] Smaller reporting company [ ]

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes [ ] No [ X ]

As of August 7, 2015 there were 87,862,138 shares of the Company’s common stock ($0.01 par value) outstanding.

1

HEARTLAND EXPRESS, INC.

AND SUBSIDIARIES

TABLE OF CONTENTS

	Page
PART I - FINANCIAL INFORMATION
Item 1. Financial Statements
Consolidated Balance Sheets as of June 30, 2015 and December 31, 2014 (unaudited)	3
Consolidated Statements of Comprehensive Income for the Three and Six Months Ended June 30, 2015 and 2014 (unaudited)	4
Consolidated Statements of Stockholders' Equity for the Six Months Ended June 30, 2015 (unaudited)	5
Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2015 and 2014 (unaudited)	6
Notes to Consolidated Financial Statements (unaudited)	8
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	16
Item 3. Quantitative and Qualitative Disclosures about Market Risk	23
Item 4. Controls and Procedures	24
PART II - OTHER INFORMATION
Item 1. Legal Proceedings	25
Item 2. Changes in Securities	25
Item 3. Defaults upon Senior Securities	25
Item 4. Mine Safety Disclosures	25
Item 5. Other Information	25
Item 6. Exhibits and Reports on Form 8-K	26
Signature	27

2

PART I

HEARTLAND EXPRESS, INC. AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (in thousands, except per share amounts) (unaudited)
ASSETS	June 30, 2015			December 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$	79,476		$	17,303
Trade receivables, net	70,460			77,034
Prepaid tires	9,399			10,160
Prepaid shop supplies	1,429			2,056
Other current assets	16,482			8,992
Income tax receivable	2,900			19,920
Deferred income taxes, net	16,536			14,767
Total current assets	196,682			150,232
PROPERTY AND EQUIPMENT
Land and land improvements	24,787			22,463
Buildings	39,548			34,151
Leasehold improvements	6,509			8,033
Furniture and fixtures	2,096			2,096
Shop and service equipment	10,691			10,820
Revenue equipment	583,275			600,335
Construction in progress	341			668
	667,247			678,566
Less accumulated depreciation	208,124			198,007
Property and equipment, net	459,123			480,559
GOODWILL	100,212			100,212
OTHER INTANGIBLES, NET	15,148			16,380
OTHER ASSETS	10,929			12,611
	$	782,094		$	759,994
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES
Accounts payable and accrued liabilities	$	16,834		$	8,261
Compensation and benefits	28,262			26,303
Insurance accruals	19,353			19,249
Other accruals	13,475			14,475
Total current liabilities	77,924			68,288
LONG-TERM LIABILITIES
Income taxes payable	15,498			18,296
Long-term debt	—			24,600
Deferred income taxes, net	101,311			101,605
Insurance accruals less current portion	60,998			59,300
Other long-term liabilities	11,653			11,318
Total long-term liabilities	189,460			215,119
COMMITMENTS AND CONTINGENCIES (Note 14)
STOCKHOLDERS' EQUITY
Preferred stock, par value $.01; authorized 5,000 shares; none issued	—			—
Capital stock, common, $.01 par value; authorized 395,000 shares; issued 90,689 in 2015 and 2014; outstanding 87,862 in 2015 and 87,781 in 2014, respectively	907			907
Additional paid-in capital	3,734			4,058
Retained earnings	547,243			509,834
Treasury stock, at cost; 2,827 shares in 2015 and 2,908 in 2014, respectively	(37,174		)	(38,212		)
	514,710			476,587
	$	782,094		$	759,994

The accompanying notes are an integral part of these consolidated financial statements.

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HEARTLAND EXPRESS, INC.
AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(in thousands, except per share amounts)
(unaudited)
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
OPERATING REVENUE	$	191,684		$	226,785		$	379,207		$	451,265
OPERATING EXPENSES
Salaries, wages, and benefits	70,904			$	71,240		$	141,900		$	142,185
Rent and purchased transportation	9,211			13,741			18,537			28,252
Fuel	34,196			59,338			68,452			122,563
Operations and maintenance	8,379			9,776			16,512			19,897
Operating taxes and licenses	4,378			5,319			9,192			10,165
Insurance and claims	3,469			4,370			10,113			11,465
Communications and utilities	1,453			1,553			2,996			3,383
Depreciation and amortization	26,876			26,668			52,850			51,241
Other operating expenses	6,747			7,997			14,505			16,687
Gain on disposal of property and equipment	(9,668		)	(13,859		)	(19,849		)	(15,903		)
	155,945			186,143			315,208			389,935
Operating income	35,739			40,642			63,999			61,330
Interest income	61			106			93			142
Interest expense	—			(132		)	(19		)	(287		)
Income before income taxes	35,800			40,616			64,073			61,185
Federal and state income taxes	12,484			14,144			23,145			20,634
Net income	$	23,316		$	26,472		$	40,928		$	40,551
Other comprehensive income, net of tax	—			—			—			—
Comprehensive income	$	23,316		$	26,472		$	40,928		$	40,551
Net income per share
Basic	$	0.27		$	0.30		$	0.47		$	0.46
Diluted	$	0.27		$	0.30		$	0.47		$	0.46
Weighted average shares outstanding
Basic	87,814			87,728			87,802			87,716
Diluted	87,967			87,900			87,966			87,908
Dividends declared per share	$	0.02		$	0.02		$	0.04		$	0.04

The accompanying notes are an integral part of these consolidated financial statements.

4

HEARTLAND EXPRESS, INC
ANDSUBSIDIARIES
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
(in thousands, except per share amounts)
(unaudited)
	Capital		Additional
	Stock,		Paid-In			Retained			Treasury
	Common		Capital			Earnings			Stock			Total
Balance, December 31, 2014	$	907	$	4,058		$	509,834		$	(38,212	)	$	476,587
Net income	—		—			40,928			—			40,928
Dividends on common stock, $0.04 per share	—		—			(3,519		)	—			(3,519		)
Stock-based compensation, net of tax	—		(324		)	—			1,038			714
Balance, June 30, 2015	$	907	$	3,734		$	547,243		$	(37,174	)	$	514,710

The accompanying notes are an integral part of these consolidated financial statements.

5

HEARTLAND EXPRESS, INC.
AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
(unaudited)
	Six Months Ended June 30,
	2015			2014
OPERATING ACTIVITIES
Net income	$	40,928		$	40,551
Adjustments to reconcile net income to net cash provided   by operating activities:
Depreciation and amortization	53,375			51,779
Deferred income taxes	(2,063		)	10,103
Amortization of stock-based compensation, net of tax	714			546
Gain on disposal of property and equipment	(19,849		)	(15,903		)
Changes in certain working capital items:
Trade receivables	6,574			(3,758		)
Prepaid expenses and other current assets	1,368			(2,237		)
Accounts payable, accrued liabilities, and accrued expenses	6,441			(6,979		)
Accrued income taxes	14,222			4,046
Net cash provided by operating activities	101,710			78,148
INVESTING ACTIVITIES
Proceeds from sale of property and equipment	57,349			29,432
Purchases of property and equipment, net of trades	(64,703		)	(72,384		)
Acquisition of business, net of cash acquired	—			(3,011		)
Change in designated funds for equipment purchases	(5,741		)	—
Change in other assets	1,682			(49		)
Net cash used in investing activities	(11,413		)	(46,012		)
FINANCING ACTIVITIES
Cash dividends	(1,759		)	(1,757		)
Contingent consideration related to acquisition	(1,765		)	—
Borrowings on line of credit	—			3,000
Repayments on line of credit	(24,600		)	(35,000		)
Net cash used in financing activities	(28,124		)	(33,757		)
Net increase (decrease) in cash and cash equivalents	62,173			(1,621		)
CASH AND CASH EQUIVALENTS
Beginning of period	17,303			17,763
End of period	$	79,476		$	16,142
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	$	40		$	306
Cash paid during the period for income taxes, net of refunds	$	10,802		$	6,486
Noncash investing and financing activities:
Fair value of revenue equipment traded	$	—		$	3,335
Purchased property and equipment in accounts payable	$	5,682		$	28,406
Sold property and equipment in other current assets	$	1,598		$	—
Common stock dividends declared in accounts payable	$	1,760		$	1,759

6

The accompanying notes are an integral part of these consolidated financial statements.

7

HEARTLAND EXPRESS, INC.

AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

Note 1.  Basis of Presentation

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.

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. The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and notes to the financial statements required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all normal, recurring adjustments considered necessary for a fair presentation have been included. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2014 included in the Annual Report on Form 10-K of the Company filed with the Securities and Exchange Commission on March 2, 2015. Interim results of operations are not necessarily indicative of the results to be expected for the full year or any other interim periods. There were no changes to the Company's significant accounting policies during the six month period ended June 30, 2015.

Note 2.  Use of Estimates

The preparation of the consolidated financial statements in conformity with 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. There were no significant changes in estimates and assumptions used by management related to our critical accounting policies during the three and six months ended June 30, 2015.

Note 3. 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 or geographical-based regional terminals individually meet the definition of a segment. Our Chief Operating Decision Maker oversees and manages all of our transportation services and regional terminals, on a combined basis, including the legacy transportation services of acquired entities. 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.

Note 4. 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 June 30, 2015, restricted and designated cash and investments totaled $16.7 million with $5.7 million included in other current assets and $11.0 million included in other non-current assets in the consolidated balance sheet. Restricted and designated cash and investments totaled $12.6 million at December 31, 2014, all of which was included in other non-current assets in the consolidated balance sheet.  The restricted funds represent deposits required by state agencies for self-insurance purposes and designated funds that are earmarked for a specific purpose and not for general business use.

Note 5. 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 $0.3 million and $0.3 million for the three

8

months ended June 30, 2015 and 2014 and $0.5 million and $0.5 million for the six months ended June 30, 2015 and 2014, respectively, have been included in communication 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 using the 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.

Note 6. Other Intangibles, Net and Goodwill

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. There was no change in the gross amount of identifiable intangible assets during the three and six months ended June 30, 2015. Amortization expense of $0.6 million, $1.2 million and $0.6 million, $1.2 million for the three and six months ended June 30, 2015 and 2014, respectively, was included in depreciation and amortization in the consolidated statement of comprehensive income. Intangible assets subject to amortization consisted of the following at June 30, 2015:

	Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
		(in thousands)
Customer relationships	20	$	7,600	$	618	$	6,982
Tradename	6	7,400		2,004		5,396
Covenants not to compete	10	3,100		507		2,593
Real estate options	2.2	942		765		177
		$	19,042	$	3,894	$	15,148

Carrying amounts of goodwill were as follows:

	(in thousands)
Balance at December 31, 2014	$	100,212
Acquisitions	—
Balance at June 30, 2015	$	100,212

Note 7. 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 three and six months ended June 30, 2015 and June 30, 2014, we had outstanding restricted 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 the three and six months ended June 30, 2015 and June 30, 2014 is as follows (in thousands, except per share data):

	Three months ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	23,316	87,814	$	0.27
Effect of restricted stock	—		153
Diluted EPS	$	23,316	87,967	$	0.27

9

	Three months ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	26,472	87,728	$	0.30
Effect of restricted stock	—		172
Diluted EPS	$	26,472	87,900	$	0.30

	Six Months Ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,928	87,802	$	0.47
Effect of restricted stock	—		164
Diluted EPS	$	40,928	87,966	$	0.47

	Six Months Ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,551	87,716	$	0.46
Effect of restricted stock	—		192
Diluted EPS	$	40,551	87,908	$	0.46

Note 8. Equity

In September 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.  Approximately 3.2 million shares remain authorized for repurchase under the program as of June 30, 2015. There were no shares repurchased in the open market during the three and six months ended June 30, 2015 and 2014. The authorization remains open at June 30, 2015 and has no expiration date. The share repurchase authorization is discretionary and may be suspended or discontinued at any time without prior notice.  

During the three and six months ended June 30, 2015 and 2014, our Board of Directors declared regular quarterly dividends totaling $1.8 million, $3.5 million, and $1.8 million, $3.5 million respectively.  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.

Note 9. 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. As of June 30, 2015, there were 0.4 million shares that had been granted to employees. 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. There were no shares granted in 2012. The shares granted in 2013 through 2015 are also service based awards and generally vest evenly over two to four years from the date of grant. Once vested, there are no other restrictions on the awards. Compensation

10

expense associated with these awards is based on the market value of our stock on the grant date. Our market closing price on the December 14, 2011 grant date was $13.57 and ranged between $13.86 and $27.47 on the various grant dates for the shares issued in 2013 through June 30, 2015. 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 $0.3 million and $0.6 million and for the three and six months ended June 30, 2015, respectively. Compensation expense associated with restricted stock awards was $0.3 million and $0.5 million for the three and six months ended June 30, 2014. Unrecognized compensation expense was $0.9 million at June 30, 2015 which will be recognized over a remaining weighted average period of 1.3 years.

The following tables summarizes our restricted stock award activity for the three and six months ended June 30, 2015 and 2014.

	Three Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	175.1		$	16.49
Granted	2.2		21.19
Vested	(70.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Six Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	183.1		$	16.78
Granted	4.2		24.06
Vested	(80.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Three and Six Months Ended June 30, 2014
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	211.6		$	13.81
Granted	8.5		22.01
Vested	(72.7	)	—
Forfeited	—		—
Outstanding (unvested) at end of period	147.4		$	14.16

Note 10.  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. The line of credit is available 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 from November 1, 2016 through October 31, 2018.

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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 Revolver at 0.0625%, due monthly.

The Credit Agreement contains customary financial covenants including, but not limited to, (i) a maximum adjusted leverage ratio of 2:1, measured quarterly on a trailing twelve month basis, (ii) a minimum net income requirement of $1.00, measured quarterly on a trailing twelve month basis, (iii) a minimum tangible net worth of $200,000,000 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 respective financial covenants at June 30, 2015.

Long term debt consisted of the following at June 30, 2015 and December 31, 2014 (in thousands):

	June 30, 2015		December 31, 2014
Long-term debt	$	—	$	24,600

The weighted average variable annual percentage rate (“APR”) for amounts borrowed and outstanding at December 31, 2014 was 0.79%. 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 June 30, 2015 were $4.4 million. As of June 30, 2015, the line of credit available for future borrowing was $220.6 million.

Note 11.  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 temporary differences reverse. The effect of a change in tax rates on deferred taxes is recognized in the period that the change is enacted. A valuation allowance is recorded to reduce the Company's deferred tax assets to the amount that is more likely than not to be realized. We had no recorded valuation allowance at June 30, 2015 and December 31, 2014.

Our effective tax rate was 34.9% and 34.8% for the three months ended and 36.1%, and 33.7% for the six months ended June 30, 2015 and 2014, respectively.  The increase in the effective tax rate for 2015 is primarily attributable to a decrease in favorable income tax expense adjustments in 2015 when compared to the same period in 2014 which had a favorable provision to return adjustment that reduced income tax expense.

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.

At June 30, 2015 and December 31, 2014, we had a total of $11.0 million and $12.6 million in gross unrecognized tax benefits, respectively.  Of this amount, $7.0 million and $8.0 million represents the amount of unrecognized tax benefits that, if recognized, would impact our effective tax rate as of June 30, 2015 and December 31, 2014.  Unrecognized tax benefits were a net decrease of $1.1 million and $0.8 million during the three months ended June 30, 2015 and 2014, respectively. Unrecognized tax benefits were a net decrease of $1.6 million and $1.3 million during the six months ended June 30, 2015 and 2014, respectively. The net decreases during the three month periods of 2015 and 2014 were due mainly to the expiration of certain statutes of limitation net of additions with respective states.  This had the effect of decreasing the effective state tax rate during these respective periods. The total net amount of accrued interest and penalties for such unrecognized tax benefits was $4.4 million and $5.7 million at June 30, 2015 and December 31, 2014 and is included in income taxes payable in the consolidated balance sheets.  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. Net interest and penalties included in income tax expense for the three month period ended June 30, 2015 and 2014 was a benefit

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of approximately $0.7 million and $0.5 million, respectively. Net interest and penalties included in income tax expense for the six month period ended June 30, 2015 and 2014 was a benefit of approximately $1.2 million and $1.2 million, respectively. Income tax expense was reduced during the three and six months ended June 30, 2015 and 2014 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:

	2015
	(in thousands)
Balance at January 1, 2015	$	12,632
Additions based on tax positions related to current year	434
Additions for tax positions of prior years	—
Reductions for tax positions of prior years	(90		)
Reductions due to lapse of applicable statute of limitations	(1,927		)
Settlements	—
Balance at June 30, 2015	$	11,049

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 to be a decrease of approximately $1.0 million to a decrease of $2.0 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 2012 and forward. Tax years 2005 and forward are subject to audit by state tax authorities depending on the tax code and administrative practice of each state.

Note 12.  Operating Leases

We have operating leases for certain revenue equipment. During 2015, these leases are all with a commercial tractor dealership, owned by a board member and certain of our employees. During 2014, a portion of our operating leases were with the noted commercial tractor dealership. Rent expense for these leases were $0.8 million and $1.9 million (including related-party rental payments totaling $0.8 million and $1.9 million) for the three and six months ended June 30, 2015, respectively. Rent expense for these leases were $2.3 million and $4.6 million (including related-party rental payments totaling $1.8 million, and $3.6 million), for the three and six months ended 2014, respectively. These expenses were included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire in 2015 and 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. Rent expenses for terminal facilities were $1.0 million and $2.1 million (including related-party rental payments totaling $1.0 million and $1.9 million), for the three and six months ended June 30, 2015, respectively. Rent expenses for terminal facilities were $1.0 million and $2.1 million (including related-party rental payments totaling $1.0 million and $2.0 million), for the three and six months ended June 30, 2014, respectively. These expenses were included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire from 2015 through 2018 and the majority of these facilities contain options to renew. We exercised the purchase option on the Pontoon Beach, IL terminal and finalized this purchase during the second quarter of 2015. We paid $4.9 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 Notes 6 and 13 for additional information.

Note 13. 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, which began November 11, 2013, 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

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the property. We exercised our option to purchase and ultimately acquired one leased location from a limited liability company referenced above on June 30, 2015.

We purchased tractors from and sold tractors to the commercial tractor dealership noted above. We 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 the commercial tractor dealership $1.3 million and $0.1 million, included in accounts payable and accrued liabilities in the consolidated balance sheets at June 30, 2015 and December 31, 2014, respectively, for tractors delivered but not paid for prior to these dates and outstanding parts and services. The commercial tractor dealership owed us $0.5 million and $0.0 million, included in other current assets in the consolidated balance sheets at June 30, 2015 and December 31, 2014, respectively, for tractors traded but not paid for prior to those dates.

The related payments (receipts) with related parties for the three and six months ended June 30, 2015 and 2014 (in thousands) were as follows:

	Three months ended June 30,
	2015			2014
Payments for tractor purchases	$	22,795		$	505
Receipts for tractor sales	(11,041		)	(1,299		)
Revenue equipment lease payments	799			1,817
Payments for parts and services	1,065			1,364
Terminal lease payments	963			977
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(141		)
	$	19,456		$	6,048

	Six months ended June 30,
	2015			2014
Payments for tractor purchases	$	24,895		$	11,988
Receipts for tractor sales	(19,567		)	(4,497		)
Revenue equipment lease payments	1,884			3,646
Payments for parts and services	2,426			2,906
Terminal lease payments	1,919			2,005
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(282		)
	$	16,432		$	18,591

Note 14.  Commitments and Contingencies

We are a party to ordinary, routine litigation and administrative proceedings incidental to its 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, to be delivered through the remainder of 2015 was $58.3 million at June 30, 2015. We have a purchase commitment with a related party of $11.6 million$12.0 million related to our exercise of a purchase option on the Rancho Cucamonga, CA terminal expected to be finalized by September 30, 2015.

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Note 15.  Subsequent Events

We have evaluated events occurring subsequent to June 30, 2015 through the filing date of this Quarterly Report on Form 10-Q for disclosure. No events occurred requiring disclosure.

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ITEM 2.    MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS

OF OPERATIONS

This Item 2 contains certain statements that may be considered forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and such statements are subject to the safe harbor created by such sections. All statements, other than statements of historical fact, are statements that could be deemed forward-looking statements, including without limitation: any projections of earnings, revenues, or other financial items; any statement of plans, strategies, and objectives of management for future operations; any statements concerning proposed new services or developments; any statements regarding future economic conditions or performance; and any statements of belief and any statement of assumptions underlying any of the foregoing. Such statements may be identified by their use of terms or phrases such as “expects,” “estimates,” “projects,” “believes,” “anticipates,” “intends,” “may” “could," and similar terms and phrases. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, which could cause future events and actual results to differ materially from those set forth in, contemplated by, or underlying the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section entitled "Item 1A. Risk Factors," set forth in the Company's 2014 Annual Report on Form 10-K, filed with the Securities and Exchange Commission on March 2, 2015, which is by this reference incorporated herein. Readers should review and consider the factors discussed in “Risk Factors” of the Company's Annual Report on Form 10-K, along with various disclosures in our press releases, stockholder reports, and other filings with the Securities and Exchange Commission.

All such forward-looking statements speak only as of the date of this Quarterly Report. You are cautioned not to place undue reliance on such forward-looking statements. The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Company's expectations with regard thereto or any change in the events, conditions, or circumstances on which any such statement is based.

References in this Quarterly Report to “we,” “us,” “our,” “Heartland,” or the “Company” or similar terms refer to Heartland Express, Inc. and its subsidiaries.

Overview

We 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. During 2013, through an acquisition, we expanded our historical asset-based dry van service offerings with temperature-controlled truckload, and non-asset-based freight brokerage services. Although these additional service offerings were added in late 2013, they are not significant to our operations. We generally earn revenue based on the number of miles per load delivered.  We believe the keys to success are maintaining high levels of customer service and safety which are predicated on the availability of late-model equipment and experienced drivers.  Management believes that our service standards, safety record, and equipment accessibility have made us a core carrier to many of our major customers, as well as allowed us to build solid, long-term relationships with customers and brand ourselves as an industry leader for on-time service.

We achieve operating efficiencies and cost controls through equipment utilization, which is optimized by a common information system platform, a fleet of late model equipment, industry-leading driver to non-driver employee ratio, and effective management of fixed and variable operating costs.  During 2014 and thus far in 2015, the demand for freight services has generally outpaced industry capacity. Industry capacity continues to be hindered by an insufficient quantity of qualified drivers, which is further challenged by various regulations that increasingly reduce drivers' availability. We cannot predict how future regulations will impact driver utilization. An industry shortage of qualified drivers, in conjunction with reduced driver utilization, creates a favorable rate environment, but also a general industry trend toward increased driver wages to attract and retain qualified drivers. We cannot currently predict how long this trend will continue.

Competition for drivers, which has historically been intense, has recently escalated due to higher demand for freight services and decreasing numbers of qualified drivers in the industry, and we have experienced increased difficulties attracting and retaining qualified drivers. We continue to explore new strategies to attract and retain qualified drivers. We hire the majority of our drivers with at least six to nine months of over-the-road experience and safe driving records. In order to attract and retain experienced drivers who understand the importance of customer service, we have sought to solidify our position as an industry leader in driver compensation in our operating markets. We implemented increases to our base driver pay package effective November 1, 2014, raising driver compensation. Our driver pay package includes future pay increases based on years of continued service to us and increased rates for accident-free miles of operation. Additionally, effective January 1, 2015 we improved detention pay to assist drivers to offset unproductive detention time. These increases have raised average driver pay by approximately 13% during the six months ended June 30, 2015 compared to the same period in 2014. We believe this compensation increase solidified our

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leadership position in terms of driver pay within the industry and rewards our drivers for years of service with safe operating mileage benchmarks which are critical to our operational and financial performance. This driver wage increase has assisted our driver retention efforts.

Containment of fuel cost continues to be one of management's top priorities as fuel expenses, at 18.3% of operating revenues at June 30, 2015, is our highest cost after salaries, wages and benefits to our drivers and other employees. The average price so far in 2015 has been $2.86 with the latest average Department of Energy ("DOE") price decreasing to $2.67 compared to an average DOE price of $3.94 during the quarter ended June 30, 2014. Although the average price per gallon in 2015 is the lowest it has been since 2010, we currently cannot predict if fuel prices will remain at this level for the remainder of 2015. We are not able to pass through all fuel price increases through fuel surcharge agreements with customers due to tractor idling time, along with empty and out-of-route miles. We continue to manage and implement fuel initiative strategies that we believe will effectively manage fuel costs.  These initiatives include strategic fueling of our trucks, whether it be terminal fuel or over-the-road fuel, reducing tractor idle time, controlling out-of-route miles, controlling empty miles, utilizing on-board power units to minimize idling, educating drivers to save energy, trailer skirting, and increasing fuel economy through the purchase of newer, more fuel efficient tractors.  At June 30, 2015, 99% of our over-the-road sleeper berth tractor fleet was equipped with idle management controls. At June 30, 2015, the Company’s tractor fleet had an average age of 1.7 years and the Company's trailer fleet had an average age of 4.5 years. As we continue to lower the age of our tractor fleet throughout the remainder of 2015 the overall fuel economy of the tractor fleet is expected to improve.

We continue to focus on growing organically by providing quality service to targeted customers with a high density of freight in our regional operating areas. In addition to the development of our regional operating areas, we have made six acquisitions since 1987.  Future growth depends upon several factors including the level of economic growth and the related customer demand, the available capacity in the trucking industry, our ability to identify and consummate future acquisitions, our ability to integrate operations of acquired companies to realize efficiencies, and our ability to attract and retain experienced drivers that meet our hiring standards.

We ended the first six months of 2015 with operating revenues of $379.2 million, including fuel surcharges, net income of $40.9 million, and basic net income per share of $0.47 on basic weighted average outstanding shares of 87.8 million compared to operating revenues of $451.3 million, including fuel surcharges, net income of $40.6 million, and basic net income per share of $0.46 on basic weighted average shares of 87.7 million in the first six months of 2014. We posted an 83.1% operating ratio (operating expenses as a percentage of operating revenues) for the six months ended June 30, 2015 compared to 86.4% for the same period of 2014 and a 10.8% net margin (net income as a percentage of operating revenues) for the six months ended June 30, 2015 compared to 9.0% in the same period of 2014. We had total assets of $782.1 million at June 30, 2015. We achieved a return on assets of 11.1% and a return on equity of 17.6% over the immediate past four quarters ended June 30, 2015, compared to 10.6% and 18.2%, respectively, for the immediate past four quarters ended June 30, 2014.  

Our cash flow from operating activities for the six months ended June 30, 2015 of $101.7 million was 26.8% of operating revenues, compared to $78.1 million and 17.3% in the same period of 2014.  During 2015, we used $11.4 million in net investing cash flows, which was the result of net cash used for revenue equipment purchases combined with changes in restricted cash funds. We used $28.1 million in financing activities directly related to debt repayments on our line of credit that we paid off in January 2015. As a result, our cash and cash equivalents increased $62.2 million during the six months ended June 30, 2015.  We ended the second quarter of 2015 with cash and cash equivalents of $79.5 million.

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Results of Operations

The following table sets forth the percentage relationships of expense items to total operating revenue for the periods indicated:

	Three Months Ended June 30,				Six months ended June 30,
	2015		2014		2015		2014
Operating revenue	100.0	%	100.0	%	100.0	%	100.0	%
Operating expenses:
Salaries, wages, and benefits	37.0	%	31.4	%	37.4	%	31.5	%
Rent and purchased transportation	4.8	%	6.1	%	4.9	%	6.3	%
Fuel	17.8	%	26.2	%	18.1	%	27.2	%
Operations and maintenance	4.4	%	4.3	%	4.4	%	4.4	%
Operating taxes and licenses	2.3	%	2.3	%	2.4	%	2.3	%
Insurance and claims	1.8	%	1.9	%	2.7	%	2.5	%
Communications and utilities	0.8	%	0.7	%	0.8	%	0.7	%
Depreciation and amortization	14.0	%	11.8	%	13.9	%	11.4	%
Other operating expenses	3.5	%	3.5	%	3.8	%	3.7	%
Gain on disposal of property and equipment	(5.0	)%	(6.1	)%	(5.2	)%	(3.5	)%
	81.4	%	82.1	%	83.1	%	86.4	%
Operating income	18.6	%	17.9	%	16.9	%	13.6	%
Interest income	0.03	%	0.05	%	0.02	%	0.03	%
Interest expense	—	%	(0.06	)%	(0.01	)%	(0.06	)%
Income before income taxes	18.7	%	17.9	%	16.9	%	13.6	%
Income taxes	6.5	%	6.2	%	6.1	%	4.6	%
Net income	12.2	%	11.7	%	10.8	%	9.0	%

Three Months Ended June 30, 2015 Compared With the Three Months Ended June 30, 2014

Operating revenue decreased$35.1 million (15.5%), to $191.7 million for the three months ended June 30, 2015 from $226.8 million for the three months ended June 30, 2014.  The decrease in revenue was the result of a $20.5 million (44.4%) decrease in fuel surcharge revenue from $46.2 million in 2014 to $25.7 million in 2015 and a decrease in trucking and other revenues of $14.6 million(8.1)%. Operating revenues (the total of trucking and fuel surcharge revenue) are primarily earned based on loaded miles driven in providing truckload transportation services. The number of loaded miles is affected by general freight supply and demand trends and the number of revenue earning equipment vehicles (tractors). The number of revenue earning equipment vehicles (tractors) is directly affected by the number of available company drivers and independent contractors providing capacity to us. Our operating revenues are reviewed regularly on a combined basis across the United States due to the similar nature of our service offerings and related similar base pricing structure. The net trucking revenue decrease was the result of a decrease in loaded miles due to a decrease in drivers, offset by an increase in the rate per loaded mile compared to the three months ended June 30, 2014. We expect revenue to be positively impacted through increases in rate per loaded mile due to current market conditions, including a lack of qualified drivers in the industry.

Fuel surcharge revenues represent fuel costs passed on to customers based on customer specific fuel surcharge recovery rates and billed loaded miles. Fuel surcharge revenues decreased primarily as a result of a 27.6%decrease in the average Department of Energy ("DOE") diesel fuel prices during the three months ended June 30, 2015 compared to June 30, 2014, as reported by the DOE, along with a decrease in loaded miles.

Salaries, wages, and benefits decreased$0.3 million (0.5%), to $70.9 million for the three months ended June 30, 2015 from $71.2 million in the 2014 period.  Salaries, wages and benefits were relatively flat period over period due to the offsetting changes in health insurance and workers compensation costs (increased $1.2 million), driver wages (decreased $1.2 million), and non-driver employee wages (decreased $0.3 million). Salaries, wages, and benefits overall increased 5.6% as a percentage of operating revenues. The increase as a percentage of operating revenues was driven mainly by our updated driver pay package which increased average driver wages paid per mile by 13%, including detention pay for our drivers after one hour. The increase in driver wages

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per mile are due to current market conditions caused by a lack of qualified drivers in the industry and competition to attract and retain drivers. We currently expect that our expenses relating to driver wages, as a percentage of revenues, will continue to increase in 2015 as compared to 2014, with or without changes in driver miles, due to increases in average driver wages paid per mile implemented in late 2014. Health insurance expense increased $1.2 million due to an increase in severity and frequency of claims. Non-driver wages decreased $0.3 million due to a reduction in number of non-driver employees as we continue to focus on creating operational efficiencies across our consolidated operations.

Rent and purchased transportation decreased$4.5 million (33.0%), to $9.2 million for the three months ended June 30, 2015 from $13.7 million in the comparable period of 2014.  The decrease was attributable to amounts paid to third party carriers on brokered loads (decreased $1.4 million), amounts paid to independent contractors (decreased $1.6 million), and amounts paid for operating leases of revenue equipment (decreased $1.5 million). The decrease in amounts paid were due to a decrease in loads brokered with third party carriers, a decrease in miles driven by independent contractors, and a reduction in leased revenue equipment units during the 2015 period as compared to 2014. During the three months ended June 30, 2015, independent contractors accounted for 3.2% of the total fleet miles compared to approximately 3.6% for the same period of 2014.

Fuel decreased$25.1 million (42.4%), to $34.2 million for the three months ended June 30, 2015 from $59.3 million for the same period of 2014. The decrease was primarily the result of cost savings attributable to decreased fuel prices ($17.7 million) and the combination of decreased miles and increased fuel economy on our tractor fleet ($7.5 million). Fuel cost per mile, net of fuel surcharge revenues, decreased27.7% in the 2015 period compared to the same period of 2014, due mainly to a 27.6%decrease in the average diesel price per gallon as reported by the DOE. Other factors contributing to the decrease in fuel cost per mile, net of fuel surcharge, included decreased miles and increased fuel economy due to newer, more fuel efficient, revenue equipment, and idle management controls. Although the average price per gallon in 2015 is the lowest it has been since 2010, we currently cannot predict if fuel prices will remain at this level for the remainder of 2015.

Depreciation increased$0.2 million (0.8%), to $26.9 million during the three months ended June 30, 2015 from $26.7 million in the same period of 2014.  The increase is mainly attributable to an increase in the average depreciation expense per revenue equipment units (tractors and trailers) being depreciated. Tractor depreciation increased $0.5 million, on a 10.6% decrease in the number of tractor units depreciated during the three months ended June 30, 2015 compared to the 2014 period. As tractors are depreciated using the declining balance method, depreciation expense is highest in the first year of use and declines in subsequent years and therefore depreciation increased due to continued upgrades to our tractor fleet in 2015. Compared to the same period in 2014, trailer depreciation decreased $0.3 million on an 13.2% decrease in the number of trailer units depreciated during the three months ended June 30, 2015. We currently expect this cost to increase in 2015 as we continue to upgrade our tractor and trailer fleets and discontinue use of leases for revenue equipment.

Operating and maintenance expense decreased$1.4 million (14.3%), to $8.4 million during the three months ended June 30, 2015 from $9.8 million in the same period of 2014. The decrease is mainly due to a decrease in the number of revenue equipment units in the fleet and miles driven period over period as noted. We expect these costs to fluctuate in 2015 based on revenue equipment trading activity and overall fleet reliability.

Gains on the disposal of property and equipment decreased$4.2 million (30.2%), to $9.7 million during the three months ended June 30, 2015 from $13.9 million in the same period of 2014.  The decrease resulted from a decrease in gains on sales of tractor equipment of $10.0 million and an increase in gains on trailer equipment sales of $4.4 million and gains on sale of other property of $1.4 million. The decrease in gains on tractor sales was the net effect of selling 62% less tractors during 2015, along with 73% lower gains per unit. The increase in gains on trailer sales was due to a 19% increase in the number of units sold along with a gain per unit increase of 123%. We currently anticipate tractor and trailer equipment sale activity to continue during 2015 as we continue to upgrade our tractor and trailer fleets.

Our effective tax rate was comparable at 34.9% and 34.8% for the three months ended June 30, 2015 and 2014, respectively.  

As a result of the foregoing, our operating ratio (operating expenses as a percentage of operating revenue) was 81.4% during the three months ended June 30, 2015, compared to 82.1% during the three months ended June 30, 2014.  Net income decreased$3.2 million11.9%, to $23.3 million for the three months ended June 30, 2015, from $26.5 million during the same period in 2014 as a result of the net effects discussed above.

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Six Months Ended June 30, 2015 Compared With the Six Months Ended June 30, 2014

Operating revenue decreased$72.1 million (16.0%), to $379.2 million for the six months ended June 30, 2015 from $451.3 million for the six months ended June 30, 2014.  The decrease in revenue was the result of a $40.3 million (43.8%) decrease in fuel surcharge revenue from $92.1 million in 2014 to $51.8 million in 2015 and a decrease in trucking and other revenues of $31.8 million (8.8%). The net trucking revenue decrease was the result of a decrease in loaded miles due to a decrease in drivers, offset by an increase in the rate per loaded mile compared to the six months ended June 30, 2014. We expect revenue to be positively impacted through increases in rate per loaded mile due to current market conditions, including a lack of qualified drivers in the industry. Fuel surcharge revenues decreased primarily as a result of a 27.3%decrease in the average Department of Energy ("DOE") diesel fuel prices during the six months ended June 30, 2015 compared to June 30, 2014, as reported by the DOE, along with a decrease in loaded miles.

Salaries, wages, and benefits decreased$0.3 million (0.2%), to $141.9 million for the six months ended June 30, 2015 from $142.2 million in the 2014 period.  Salaries, wages and benefits were relatively flat period over period due to the offsetting changes in health insurance and workers compensation costs (increased $3.0 million), driver wages (decreased $2.1 million), non-driver employee wages (decreased $1.0 million), and payroll taxes and other costs decreased ($0.2 million). Salaries, wages, and benefits overall increased 5.9% as a percentage of operating revenues. The increase as a percentage of operating revenues was driven mainly by our updated driver pay package which increased average driver wages paid per mile by 13%, including detention pay for our drivers after one hour. The increase in driver wages per mile are due to current market conditions caused by a lack of qualified drivers in the industry and competition to attract and retain drivers. We currently expect that our expenses relating to driver wages, as a percentage of revenues, will continue to increase in 2015 as compared to 2014, with or without changes in driver miles, due to increases in average driver wages paid per mile implemented in late 2014. Health insurance expense increased $3.0 million due to an increase in severity and frequency of claims. Non-driver wages decreased $1.0 million due to a reduction in number of non-driver employees as we continue to focus on creating operational efficiencies across our consolidated operations.

Rent and purchased transportation decreased $9.8 million (34.4%), to $18.5 million for the six months ended June 30, 2015 from $28.3 million in the comparable period of 2014.  The decrease was attributable to a decrease in amounts paid for operating leases of revenue equipment of $2.5 million, a decrease in amounts paid to third party carriers on brokered loads of $4.2 million, a decrease in amounts paid to independent contractors of $2.9 million and a decrease in leased property and other expense of $0.2 million. The decreases in these expenses was due to lower miles driven under leased arrangements and fewer leased properties during 2015 as compared to 2014. During the six months ended June 30, 2015, independent contractors accounted for 3.3% of the total fleet miles compared to 3.6% during the comparable period of 2014.

Fuel decreased$54.1 million (44.1%), to $68.5 million for the six months ended June 30, 2015 from $122.6 million for the same period of 2014. The decrease was primarily the result of cost savings attributable to decreased fuel prices ($38.4 million) and the combination of decreased miles and increased fuel economy on our tractor fleet ($15.7 million). Fuel cost per mile, net of fuel surcharge revenues, decreased36.7% in the 2015 period compared to the same period of 2014, due in part to a 27.3%decrease in the average diesel price per gallon as reported by the DOE. Other factors contributing to the decrease in fuel cost per mile, net of fuel surcharge, included decreased miles and increased fuel economy due to newer, more fuel efficient, revenue equipment, and idle management controls. Although the average price per gallon in 2015 is the lowest it has been since 2010, we currently cannot predict if fuel prices will remain at this level for the remainder of 2015.

Depreciation and amortization increased $1.7 million (3.1%), to $52.9 million during the six months ended June 30, 2015 from $51.2 million in the same period of 2014.  The increase is mainly attributable to an increase in the average depreciation expense per revenue equipment units (tractors and trailers) being depreciated. Tractor depreciation increased $2.3 million, on a 11.0% decrease in the number of tractor units depreciated during the six months ended June 30, 2015 compared to the 2014 period. As tractors are depreciated using the declining balance method, depreciation expense is highest in the first year of use and declines in subsequent years and therefore depreciation increased due to continued upgrades to our tractor fleet in 2015. Compared to the same period in 2014, trailer depreciation decreased $0.7 million on an 12.2% decrease in the number of trailer units depreciated during the six months ended June 30, 2015. We currently expect this cost to increase in 2015 as we continue to upgrade our tractor and trailer fleets and discontinue use of leases for revenue equipment.

Operating and maintenance expense decreased$3.4 million (17.0%), to $16.5 million during the six months ended June 30, 2015 from $19.9 million in the same period of 2014. The decrease is mainly due to a decrease in the number of revenue equipment units in the fleet and miles driven period over period. We expect these costs to fluctuate in 2015 based on revenue equipment trading activity and overall fleet reliability.

20

Gains on the disposal of property and equipment decreased$3.9 million24.8%, to $19.8 million during the six months ended June 30, 2015 from $15.9 million in the same period of 2014.  The decrease resulted from a decrease in gains on sales of tractor equipment of $7.2 million and an increase in gains on trailer equipment sales of $9.7 million and gains on sale of other property of $1.4 million. The decrease in gains on tractor sales was due mainly to 60% lower gains per unit. The increase in gains on trailer sales was due to a 71% increase in the number of units sold along with a gain per unit increase of 125%. We currently anticipate tractor and trailer equipment sale activity to continue during 2015 as we continue to upgrade our tractor and trailer fleets.

The Company’s effective tax rate was 36.1% and 33.7% for the six months ended June 30, 2015 and 2014, respectively.  The increase in the effective tax rate for 2015 is primarily attributable to a decrease in favorable income tax expense adjustments in 2015 when compared to the same period in 2014 which had a favorable provision to return adjustment offset by higher roll-offs of certain state tax contingencies in 2015 as compared to 2014.

As a result of the foregoing, the Company’s operating ratio (operating expenses as a percentage of operating revenue) was 83.1% during the six months ended June 30, 2015 compared with 86.4% during the six months ended June 30, 2014.  Net income increased $0.3 million 0.9%, to $40.9 million for the six months ended June 30, 2015 from $40.6 million during the compared 2014 period as a result of the net effects discussed above.

Liquidity and Capital Resources

The growth of our business requires significant investments in new revenue equipment.  Historically, we have been debt-free, funding revenue equipment purchases with cash flow provided by operating activities and sales of equipment. Our primary source of liquidity has been cash flow provided by operating activities. Our primary source of liquidity during 2015 remains cash flow generated from operating activities, although we maintain our line of credit to provide assistance with additional cash requirements to fund capital expenditures. During the six months ended June 30, 2015, we were able to fund revenue equipment purchases with cash flows provided by operating activities and sales of equipment as well as pay off the outstanding balance on our line of credit, $24.6 million. We currently have no outstanding borrowings on our line of credit.

On November 11, 2013, we entered into a Credit Agreement with Wells Fargo Bank, National Association, (the “Bank”). Pursuant to the Credit Agreement, the Bank provided a five-year, $250.0 million unsecured revolving line of credit which may be used for working capital, equipment financing, and general corporate purposes. The Bank's commitment decreased to $225.0 million on November 1, 2014 and will further decrease to $200.0 million on November 1, 2015, and to $175.0 million for the period 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, subject to the ability of Heartland Express, Inc. of Iowa (the “Borrower”) to terminate the commitment at any time at no additional cost to the Borrower. Borrowings under the Credit Agreement can either be, at the Borrower's election, (i) one-month or three-month LIBOR (Index) plus 0.625%, floating, or (ii) Prime (Index) plus 0%, floating. There is a commitment fee on the unused portion of the line of credit under the Credit Agreement at 0.0625%, due monthly.

The Credit Agreement contains customary financial covenants including, but not limited to, (i) a maximum adjusted leverage ratio of 2:1, measured quarterly, (ii) required minimum net income of $1.00, measured quarterly, (iii) required minimum tangible net worth of $200 million, 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 respective financial covenants at June 30, 2015.

Operating cash flow during the six months ended June 30, 2015 was $101.7 million compared to $78.1 million during the same period of 2014.  This was primarily a result of net income (excluding non-cash depreciation and amortization, changes in deferred taxes, and gains on disposal of equipment) being approximately $14.0 million lower during 2015 compared to 2014 offset by an increase in cash flow generated by operating assets and liabilities of approximately $35.8 million.  The net increase in cash provided by operating assets and liabilities for 2015 compared to the same period of 2014 was attributable to a decrease in trade receivables, net, due to an increase in cash collected, an increase in accounts payable, accrued liabilities, and other accrued expenses, primarily due to timing of revenue equipment payments, and an increase in the timing of income tax payments and associated net income tax payable position comparing the two periods. Cash flow from operating activities was 26.8% of operating revenues for the six months ended June 30, 2015 compared with 17.3% for the same period of 2014.

Cash flows used by investing activities was $11.4 million during the six months ended June 30, 2015 compared to cash flows used in investing activities of $46.0 million during the comparative 2014 period or an increase in cash of $34.6 million. The increase

21

in cash provided by investing activities was primarily the net result of an increase in proceeds from sale of property and equipment, net of trades, offset by equipment purchases, $29.9 million. Net cash flows provided by equipment activity was mainly the result of the timing of equipment payments for purchases and receipts from equipment sales. The remaining increase was mainly due to having paid $3.0 million in 2014 related to acquisition activity and there were no payments of that nature during the three months ended June 30, 2015. We currently anticipate net capital expenditures of approximately $65 million to $75 million for calendar year 2015, most of which relates to upgrading our tractor fleet. We expect to sell trailers during 2015 to partially offset the price of new trailers, although there are no guaranteed commitments from third parties to buy trailers during the remaining months of 2015. Therefore, the estimated net capital expenditures for 2015 could increase if trailer sale commitments from third parties are canceled.

Cash used in financing activities decreased $5.6 million during the six months ended June 30, 2015 compared to the same period of 2014 due to less repayments of borrowings on the Credit Agreement.

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 remain authorized for repurchase under the program as of June 30, 2015. The repurchase program may be suspended, modified, or discontinued at any time without prior notice.  

We paid income taxes, net of refunds, of $10.8 million and $6.5 million in the six months ended June 30, 2015 and June 30, 2014. Management believes we have adequate liquidity to meet our current and projected needs in the foreseeable future.  Management believes we will continue to have significant capital requirements over the long-term, which we expect to fund with cash flows provided by operating activities, proceeds from the sale of used equipment and available capacity on the Credit Agreement.  At June 30, 2015, the Company had $79.5 million in cash and cash equivalents and $220.6 million available borrowing capacity on the Credit Agreement.

Off-Balance Sheet Transactions

Our liquidity or financial condition is not materially affected by off-balance sheet transactions. We are a party to certain operating leases to finance a portion of our revenue equipment requirements and terminal facilities. Operating lease expense during the six months ended June 30, 2015 was $4.0 million.

New Accounting Pronouncements

In May, 2014, the Financial Accounting Standards Board issued new accounting guidance, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The guidance will replace most existing revenue recognition in GAAP when it becomes effective. The original guidance was to be effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. In July 2015, the FASB agreed to defer the effective date of this guidance by one year, with early adoption permitted on the original effective date. The new guidance permits the use of either the retrospective or cumulative effect transition method. We are evaluating the effect that the new guidance will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor have we determined the effect of the standard on our ongoing financial reporting.

Risk Factors

You should refer to Item 1A of our Annual Report (Form 10-K) for the year ended December 31, 2014, under the caption “Risk Factors” for specific details on the following factors that are not within the control of the Company and could affect our financial results.

• Our business is subject to general economic and business factors affecting the trucking industry that are largely out of our control, any of which could have a materially adverse effect on our operating results.

• Our growth may not continue at historical rates, if at all, and any decrease in revenues or profits may impair our ability to implement our business strategy, which could have a materially adverse effect on our results of operations.

• We are highly dependent on a few major customers, the loss of one or more of which could have a materially adverse effect on our business.

• Indebtedness under our Credit Agreement could have adverse consequences on our future operations.

• We have significant ongoing capital requirements that could affect our profitability if we are unable to generate sufficient cash from operations and obtain financing on favorable terms.

• Increased prices, reduced productivity, and restricted availability of new revenue equipment and decreased demand and value of used equipment may adversely affect our earnings and cash flows.

22

• If diesel fuel prices increase significantly, our results of operations could be adversely affected.

• Difficulty in attracting and retaining drivers, including independent contractors, may have a materially adverse effect on our business.

• If our independent contractors are deemed by regulators or judicial process to be employees, our business and results of operations could be adversely affected.

• We operate in a highly regulated industry, and increased costs of compliance with, or liability for violation of, existing or future regulations could have a materially adverse effect on our business.

• Safety-related evaluations and rankings under Compliance, Safety, Accountability (CSA) could adversely affect our profitability and operations, our ability to maintain or grow our fleet, and our customer relationships.

• Our operations are subject to various environmental laws and regulations, the violations of which could result in substantial fines or penalties.

• We are exposed to risks related to our acquisition of Gordon Trucking, Inc. ("GTI") and we may not be able to achieve the benefits we expected at the time of the acquisition. Any failure to implement our business strategy with respect to the GTI acquisition could negatively impact our business, financial condition and results of operations.

• We may not make acquisitions in the future, or if we do, we may not be successful in integrating the acquired company, either of which could have a materially adverse effect on our business.

• If we are unable to retain our key employees or find, develop, and retain terminal managers, our business, financial condition, and results of operations could be adversely affected.

• Seasonality and the impact of weather affect our operations profitability.

• We self-insure for a significant portion of our claims exposure, which could significantly increase the volatility of, and decrease the amount of, our earnings.

• We are dependent on computer and communications systems, and a systems failure could cause a significant disruption to our business.

• Concentrated ownership of our stock can influence shareholder decisions, may discourage a change in control, and may have an adverse effect on the share price of our stock.

• Efforts by labor unions could divert management's attention and could have a materially adverse effect on our operating results.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

General

We are exposed to market risk changes in interest rates on our long-term debt and from changes in commodity prices, primarily fuel and rubber. We do not currently use derivative financial instruments for risk management purposes, although we have used instruments in the past for fuel price risk management, and do not use them for either speculation or trading. Because the majority of our operations are confined to the United States, we are not subject to a material foreign currency risk.

Interest Rate Risk

We had no debt outstanding at June 30, 2015 although we had $220.6 million in available borrowings on our Credit Agreement. Borrowings under the Credit Agreement can either be, at our election, (i) one-month or three-month LIBOR (Index) plus 0.625%, floating, or (ii) Prime (Index) plus 0%, floating. The current borrowing rate available on the Credit Agreement was 0.816%. Increases in interest rates could impact our interest expense on future borrowings.

Commodity Price Risk

We are subject to commodity price risk primarily with respect to purchases of diesel fuel and rubber. We have fuel surcharge agreements with most customers that enable us to pass through most long-term price increases therefore limiting our exposure to commodity price risk. Fuel surcharges that can be collected do not always fully offset an increase in the cost of diesel fuel as we are not able to pass through fuel costs associated with out-of-route miles, empty miles, and tractor idle time. Based on our expected fuel purchases for 2015, assuming miles driven, fuel surcharges as a percentage of revenue, percentage of unproductive miles, and miles per gallon remained consistent with 2014 and 2015 amounts, a $1.00 increase in the average price of fuel, year over year, would decrease our earnings by approximately $7.5 million. We use a significant amount of tires to maintain our revenue equipment. We are not able to pass through 100% of price increases from tire suppliers due to the severity and timing of increases and current rate environment. Historically, we have sought to minimize tire price increases through bulk tire purchases from our suppliers. Based on our expected tire purchases for 2015, a 10% increase in the price of tires would increase our tire purchase expense by $1.4 million, resulting in a corresponding decrease in earnings.

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ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures– We have established disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) to ensure that material information relating to us, including our consolidated subsidiaries, is made known to the officers who certify our financial reports and to other members of senior management and the Board of Directors.

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of our management, including the Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Accounting and Financial Officer), of the effectiveness of the design and operations of our disclosure controls and procedures, as defined in Exchange Act Rule 15d-15(e). Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective in enabling us to record, process, summarize and report information required to be included in our periodic SEC filings within the required time period.

Changes in Internal Control Over Financial Reporting – There have been no changes in our internal control over financial reporting that occurred during the quarter ended June 30, 2015, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

24

PART II

We are a party to ordinary, routine litigation and administrative proceedings incidental to our business. These proceedings primarily involve claims for personal injury, property damage, cargo, and workers’ compensation incurred in connection with the transportation of freight.  We maintain insurance to cover liabilities arising from the transportation of freight for amounts in excess of certain self-insured retentions.

None.

None.

Not applicable.

None.

25

(a) Exhibits

3.1	Articles of Incorporation. Incorporated by reference to the Company's registration statement on Form S-1, Registration No. 33-8165, effective November 5, 1986.
3.2	Amended and Restated Bylaws. Incorporated by reference to the Company's Form 10-K, for the year ended December 31, 2007, dated February 28, 2008
3.3	Certificate of Amendment to Articles of Incorporation. Incorporated by reference to the Company's Form 10-QA, for the quarter ended June 30, 1997, dated March 20, 1998.
4.1	Articles of Incorporation. Incorporated by reference to the Company's registration statement on Form S-1, Registration No. 33-8165, effective November 5, 1986.
4.2	Amended and Restated Bylaws. Incorporated by reference to the Company's Form 10-K, for the year ended December 31, 2007, dated February 28, 2008.
4.3	Certificate of Amendment to Articles of Incorporation. Incorporated by reference to the Company's Form 10-QA, for the quarter ended June 30, 1997, dated March 20, 1998.
31.1*	Certification of Principal Executive Officer Pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act, as amended.
31.2*	Certification of Principal Financial Officer Pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act, as amended.
32.1*	Certification of Principal Executive Officer Pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of the Principal Financial Officer Pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS**	XBRL Instance Document.
101.SCH**	XBRL Taxonomy Extension Schema Document
101.CAL**	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF**	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB**	XBRL Taxonomy Extension Label Linkbase Document
101.PRE**	XBRL Taxonomy Extension Presentation Linkbase Document

*Filed with the Company's Quarterly Report on Form 10-Q for the period ended June 30, 2015, filed with the Securities and Exchange Commission on August 10, 2015.

** In accordance with Regulation S-T, the XBRL-related information in Exhibit 101 shall be deemed to be "furnished" and not "filed."

(b) Reports on Form 8-K

None.

No other information is required to be filed under Part II of the form.

26

SIGNATURES

Pursuant to the requirements of Sections 13 or 15(d) of the Securities Act of 1934, the registrant has duly caused the report to be signed on its behalf by the undersigned thereunto duly authorized.

		HEARTLAND EXPRESS, INC.
Date:	August 10, 2015	By: /s/ John P. Cosaert
		John P. Cosaert
		Executive Vice President of Finance
		and Chief Financial Officer
		(Principal Accounting and Financial Officer)

27

EX-31.1

Exhibit No. 31.1

Certification

I, Michael J. Gerdin, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Heartland Express Inc. (the “Registrant”);
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;
3.	Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this quarterly report;
4.	The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the Registrant and we have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and
	d)	Disclosed in this quarterly report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant's fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and
5.	The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s independent registered public accounting firm and the audit committee of Registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date:	August 10, 2015	By:	/s/ Michael J. Gerdin
			Michael J. Gerdin
			Chairman, President and Chief Executive Officer
			(Principal Executive Officer)

EX-31.2

Exhibit No. 31.2

Certification

I, John P. Cosaert, certify that:

1.	I have reviewed this quarterly report on Form 10-Q of Heartland Express Inc. (the “Registrant”);
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;
3.	Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this quarterly report;
4.	The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rule 13a-15(f) and 15d-15(f)) for the Registrant and we have:
	a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly report is being prepared;
	b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and
	d)	Disclosed in this quarterly report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant's fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and
5.	The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s independent registered public accounting firm and the audit committee of Registrant’s board of directors (or persons performing the equivalent functions):
	a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and
	b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date:	August 10, 2015	By:	/s/ John P. Cosaert
			John P. Cosaert
			Executive Vice President-Finance
			Treasurer and Chief Financial Officer
			(Principal Accounting and Financial Officer)

EX-32.1

Exhibit No. 32.1

CERTIFICATION OF

PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Heartland Express, Inc. (the "Company"), on Form 10-Q for the period ended June 30, 2015 (the "Report"), filed with the Securities and Exchange Commission, I, Michael J. Gerdin, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:
1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 10, 2015	By:	/s/ Michael J. Gerdin
			Michael J. Gerdin
			Chairman, President and Chief Executive Officer

EX-32.2

Exhibit No. 32.2

CERTIFICATION OF

PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Heartland Express, Inc. (the "Company"), on Form 10-Q for the period ended June 30, 2015 (the "Report"), filed with the Securities and Exchange Commission, I, John P. Cosaert, Executive Vice President, Treasurer-Finance and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:
1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:	August 10, 2015	By:	/s/ John P. Cosaert
			John P. Cosaert
			Executive Vice President-Finance, Treasurer
			and Chief Financial Officer

XML

Long-Term Debt (Details)	6 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 01, 2014 USD ($)	Dec. 31, 2013 USD ($)
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate		0.00%
Line of Credit Facility, Maximum Borrowing Capacity, Current			$ 225,000,000	$ 250,000,000
Line of Credit Facility, Maximum Borrowing Capacity, Period 2	$ 200,000,000
Line of Credit Facility, Maximum Borrowing Capacity, Period 3	$ 175,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.0625%
Debt Instrument, Covenant, Leverage Ratio	2
Debt Covenant, Minimum Net Income Requirement	$ 1
Debt Instrument, Minimum Tangible Net Worth	200,000,000
Long-term Debt	0	$ 24,600,000
letters of credit outstanding on a line of credit	4,400,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 220,600,000
London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.625%
Prime Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.00%

XML

Other Intangible, Net and Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Change In Gross Amount of Identifiable Intangible Assets			$ 0
Finite-Lived Intangible Assets, Amortization Expense	$ 607	$ 591	1,214	$ 1,182
Finite-Lived Intangible Assets [Line Items]
Gross Amount	19,042		19,042
Accumulated Amortization	3,894		3,894
Net Intangible Assets	15,148		$ 15,148
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)			20 years
Gross Amount	7,600		$ 7,600
Accumulated Amortization	618		618
Net Intangible Assets	6,982		$ 6,982
Tradename
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)			6 years
Gross Amount	7,400		$ 7,400
Accumulated Amortization	2,004		2,004
Net Intangible Assets	5,396		$ 5,396
Covenants Not to Compete
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)			10 years
Gross Amount	3,100		$ 3,100
Accumulated Amortization	507		507
Net Intangible Assets	2,593		$ 2,593
Real Estate Options
Finite-Lived Intangible Assets [Line Items]
Amortization period (years)			2 years 2 months 12 days
Gross Amount	942		$ 942
Accumulated Amortization	765		765
Net Intangible Assets	$ 177		$ 177

XML

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

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

	Three months ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	23,316	87,814	$	0.27
Effect of restricted stock	—		153
Diluted EPS	$	23,316	87,967	$	0.27

	Three months ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	26,472	87,728	$	0.30
Effect of restricted stock	—		172
Diluted EPS	$	26,472	87,900	$	0.30

	Six Months Ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,928	87,802	$	0.47
Effect of restricted stock	—		164
Diluted EPS	$	40,928	87,966	$	0.47

	Six Months Ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,551	87,716	$	0.46
Effect of restricted stock	—		192
Diluted EPS	$	40,551	87,908	$	0.46

XML

Related Party (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Due to Related Parties, Current	$ 1,300		$ 1,300		$ 100
Receipts for tractor sales			0	$ 3,335
Operating Leases, Rent Expense	800	$ 2,300	1,900	4,600
related party payment for terminal purchase	4,875	2,825	4,875	2,825
Due from Related Parties, Current	500		500		$ 0
Costs and Expenses, Related Party	19,456	6,048	16,432	18,591
Related Party
Related Party Transaction [Line Items]
Payments for tractor purchase	22,795	505	24,895	11,988
Receipts for tractor sales	(11,041)	(1,299)	(19,567)	(4,497)
Operating Leases, Rent Expense	799	1,817	1,884	3,646
Payments for parts and services	1,065	1,364	2,426	2,906
Administrative Services Revenue	0	(141)	0	(282)
Terminal Facilities
Related Party Transaction [Line Items]
Operating Leases, Rent Expense	1,000	1,000	2,100	2,100
Terminal Facilities | Related Party
Related Party Transaction [Line Items]
Operating Leases, Rent Expense	$ 963	$ 977	$ 1,900	$ 2,000

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Equity Dividends Paid (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stockholders' Equity Attributable to Parent [Abstract]
Dividends, Common Stock, Cash	$ 1.8	$ 1.8	$ 3.5	$ 3.5

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Use of Estimates

6 Months Ended

Jun. 30, 2015

Use of Estimates [Abstract]

Use of Estimates

Use of Estimates

The preparation of the consolidated financial statements in conformity with 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. There were no significant changes in estimates and assumptions used by management related to our critical accounting policies during the three and six months ended June 30, 2015.

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Commitments and Contingencies (Details) - USD ($) $ in Millions	Aug. 07, 2015	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Unrecorded Unconditional Purchase Obligation		$ 58.3
related party terminal purchase commitment	$ 11.6

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Related Party (Tables)

6 Months Ended

Jun. 30, 2015

Related Party [Abstract]

Schedule of Related Party Transactions [Table Text Block]

The related payments (receipts) with related parties for the three and six months ended June 30, 2015 and 2014 (in thousands) were as follows:

	Three months ended June 30,
	2015			2014
Payments for tractor purchases	$	22,795		$	505
Receipts for tractor sales	(11,041		)	(1,299		)
Revenue equipment lease payments	799			1,817
Payments for parts and services	1,065			1,364
Terminal lease payments	963			977
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(141		)
	$	19,456		$	6,048

	Six months ended June 30,
	2015			2014
Payments for tractor purchases	$	24,895		$	11,988
Receipts for tractor sales	(19,567		)	(4,497		)
Revenue equipment lease payments	1,884			3,646
Payments for parts and services	2,426			2,906
Terminal lease payments	1,919			2,005
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(282		)
	$	16,432		$	18,591

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Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

	2015
	(in thousands)
Balance at January 1, 2015	$	12,632
Additions based on tax positions related to current year	434
Additions for tax positions of prior years	—
Reductions for tax positions of prior years	(90		)
Reductions due to lapse of applicable statute of limitations	(1,927		)
Settlements	—
Balance at June 30, 2015	$	11,049

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Segment Information (Details)	6 Months Ended
	Jun. 30, 2015 segments
Segment Information [Abstract]
Number of Segments	1

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Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Cash and Cash Equivalents [Abstract]
Restricted Cash and Cash Equivalents	$ 16.7	$ 12.6
Restricted Cash and Investments, Current	5.7	0.0
Restricted Cash and Cash Equivalents, Noncurrent	$ 11.0	$ 12.6

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Basis of Presentation

6 Months Ended

Jun. 30, 2015

Basis of Presentation [Abstract]

Basis of Presentation

Basis of Presentation

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.

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. The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and notes to the financial statements required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all normal, recurring adjustments considered necessary for a fair presentation have been included. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2014 included in the Annual Report on Form 10-K of the Company filed with the Securities and Exchange Commission on March 2, 2015. Interim results of operations are not necessarily indicative of the results to be expected for the full year or any other interim periods. There were no changes to the Company's significant accounting policies during the six month period ended June 30, 2015.

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Prepaid Tires, Property, Equipment and Depreciation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Line Items]
Amortization Period of Tires			2 years
Tractors
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Salvage Value	$ 15		$ 15
Trailers
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Salvage Value	4		4
Communications and Utilities Expense
Property, Plant and Equipment [Line Items]
Depreciation	$ 300	$ 300	$ 500	$ 500

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Effective Income Tax Rate, Percent	34.90%	34.80%	36.10%	33.70%
Valuation Allowance [Abstract]
Valuation Allowance, Amount	$ 0		$ 0		$ 0
Income Tax Uncertainties [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	7,000		7,000		8,000
Unrecognized Tax Benefits, Period Increase (Decrease)	(1,100)	$ (800)	(1,600)	$ (1,300)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	4,400		4,400		$ 5,700
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	(709)	$ (500)	(1,215)	$ (1,208)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance beginning of period			12,632
Additions based on tax positions related to current year			434
Additions for tax positions of prior years			0
Reductions for tax positions of prior years			(90)
Reductions due to lapse of applicable statute of limitations			(1,927)
Settlements			0
Balance end of period	11,049		11,049
Maximum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	(2,000)		(2,000)
Minimum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	$ (1,000)		$ (1,000)

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Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 79,476	$ 17,303
Trade receivables, net	70,460	77,034
Prepaid tires	9,399	10,160
Prepaid shop supplies	1,429	2,056
Other current assets	16,482	8,992
Income tax receivable	2,900	19,920
Deferred income taxes, net	16,536	14,767
Total current assets	196,682	150,232
PROPERTY AND EQUIPMENT
Land and land improvements	24,787	22,463
Buildings	39,548	34,151
Leasehold improvements	6,509	8,033
Furniture and fixtures	2,096	2,096
Shop and service equipment	10,691	10,820
Revenue equipment	583,275	600,335
Construction in progress	341	668
Property, Plant and Equipment, Gross	667,247	678,566
Less accumulated depreciation	208,124	198,007
Property and equipment, net	459,123	480,559
GOODWILL	100,212	100,212
OTHER INTANGIBLES, NET	15,148	16,380
OTHER ASSETS	10,929	12,611
Assets	782,094	759,994
CURRENT LIABILITIES
Accounts payable and accrued liabilities	16,834	8,261
Compensation and benefits	28,262	26,303
Insurance accruals	19,353	19,249
Other accruals	13,475	14,475
Total current liabilities	77,924	68,288
LONG-TERM LIABILITIES
Income taxes payable	15,498	18,296
Long-term debt	0	24,600
Deferred income taxes, net	101,311	101,605
Insurance accruals less current portion	60,998	59,300
Other long-term liabilities	11,653	11,318
Total long-term liabilities	$ 189,460	$ 215,119
COMMITMENTS AND CONTINGENCIES (Note 14)
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 2015 and 2014; outstanding 87,862 in 2015 and 87,781 in 2014, respectively	907	907
Additional paid-in capital	3,734	4,058
Retained earnings	547,243	509,834
Treasury stock, at cost; 2,827 shares in 2015 and 2,908 in 2014, respectively	(37,174)	(38,212)
Stockholders' Equity Attributable to Parent	514,710	476,587
Liabilities and Stockholders' Equity	$ 782,094	$ 759,994

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Consolidated Statement of Stockholders' Equity Parentheticals - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Dividends declared per share	$ 0.02	$ 0.02	$ 0.04	$ 0.04

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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income	$ 23,316	$ 26,472	$ 40,928	$ 40,551
Basic EPS, Shares	87,814	87,728	87,802	87,716
Basic EPS, Per Share Amount	$ 0.27	$ 0.30	$ 0.47	$ 0.46
Effect of restricted stock	$ 0	$ 0	$ 0	$ 0
Effect of restricted stock, Shares	153	172	164	192
Diluted EPS, Net Income	$ 23,316	$ 26,472	$ 40,928	$ 40,551
Diluted EPS, Shares	87,967	87,900	87,966	87,908
Diluted EPS, Per Share Amount	$ 0.27	$ 0.30	$ 0.47	$ 0.46

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Subsequent Events

6 Months Ended

Jun. 30, 2015

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Events

We have evaluated events occurring subsequent to June 30, 2015 through the filing date of this Quarterly Report on Form 10-Q for disclosure. No events occurred requiring disclosure.

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Equity (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Sep. 30, 2001
Share Repurchases [Abstract]
Stock Repurchase Shares Authorized					15,400
Number of Shares Authorized to be Repurchased	3,225		3,225
Treasury Stock, Shares, Acquired	0		0	0
Dividends, Common Stock, Cash	$ 1.8	$ 1.8	$ 3.5	$ 3.5

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Other Intangible, Net and Goodwill (Tables)

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
		(in thousands)
Customer relationships	20	$	7,600	$	618	$	6,982
Tradename	6	7,400		2,004		5,396
Covenants not to compete	10	3,100		507		2,593
Real estate options	2.2	942		765		177
		$	19,042	$	3,894	$	15,148

Schedule of Goodwill [Table Text Block]

Carrying amounts of goodwill were as follows:

	(in thousands)
Balance at December 31, 2014	$	100,212
Acquisitions	—
Balance at June 30, 2015	$	100,212

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES
Net income	$ 40,928	$ 40,551
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	53,375	51,779
Deferred income taxes	(2,063)	10,103
Amortization of stock-based compensation, net of tax	(714)	(546)
Gain on disposal of property and equipment	(19,849)	(15,903)
Changes in certain working capital items:
Trade receivables	6,574	(3,758)
Prepaid expenses and other current assets	1,368	(2,237)
Accounts payable, accrued liabilities, and accrued expenses	6,441	(6,979)
Accrued income taxes	14,222	4,046
Net cash provided by operating activities	101,710	78,148
INVESTING ACTIVITIES
Proceeds from sale of property and equipment	57,349	29,432
Purchases of property and equipment, net of trades	(64,703)	(72,384)
Acquisition of business, net of cash acquired	0	(3,011)
Change in designated funds for equipment purchases	(5,741)	0
Change in other assets	1,682	(49)
Net cash used in investing activities	(11,413)	(46,012)
FINANCING ACTIVITIES
Payments of Ordinary Dividends, Common Stock	(1,759)	(1,757)
Contingent consideration related to acquisition	(1,765)	0
Proceeds from Lines of Credit	0	3,000
Repayments on line of credit	(24,600)	(35,000)
Net cash used in financing activities	(28,124)	(33,757)
Net increase (decrease) in cash and cash equivalents	62,173	(1,621)
CASH AND CASH EQUIVALENTS
Beginning of period	17,303	17,763
End of period	79,476	16,142
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	40	306
Cash paid during the period for income taxes, net of refunds	10,802	6,486
Noncash investing and financing activities:
Fair value of revenue equipment traded	0	3,335
Purchased property and equipment in accounts payable	5,682	28,406
Sold property and equipment in other current assets	1,598	0
Common stock dividends declared in accounts payable	$ 1,760	$ 1,759

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Consolidated Balance Sheets Consolidated Balance Sheets (Parentheticals) - $ / shares shares in Thousands	Jun. 30, 2015	Dec. 31, 2014
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	87,862	87,781
Treasury Stock, Shares	2,827	2,908

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Long-Term Debt

6 Months Ended

Jun. 30, 2015

Line of Credit, Long-Term Debt [Abstract]

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. The line of credit is available 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 from 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 Revolver at 0.0625%, due monthly.

The Credit Agreement contains customary financial covenants including, but not limited to, (i) a maximum adjusted leverage ratio of 2:1, measured quarterly on a trailing twelve month basis, (ii) a minimum net income requirement of $1.00, measured quarterly on a trailing twelve month basis, (iii) a minimum tangible net worth of $200,000,000 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 respective financial covenants at June 30, 2015.

Long term debt consisted of the following at June 30, 2015 and December 31, 2014 (in thousands):

	June 30, 2015		December 31, 2014
Long-term debt	$	—	$	24,600

The weighted average variable annual percentage rate (“APR”) for amounts borrowed and outstanding at December 31, 2014 was 0.79%. 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 June 30, 2015 were $4.4 million. As of June 30, 2015, the line of credit available for future borrowing was $220.6 million.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 07, 2015
Document Information [Line Items]
Entity Registrant Name	HEARTLAND EXPRESS INC
Entity Central Index Key	0000799233
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		87,862,138

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Income Taxes

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

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 temporary differences reverse. The effect of a change in tax rates on deferred taxes is recognized in the period that the change is enacted. A valuation allowance is recorded to reduce the Company's deferred tax assets to the amount that is more likely than not to be realized. We had no recorded valuation allowance at June 30, 2015 and December 31, 2014.

Our effective tax rate was 34.9% and 34.8% for the three months ended and 36.1%, and 33.7% for the six months ended June 30, 2015 and 2014, respectively.  The increase in the effective tax rate for 2015 is primarily attributable to a decrease in favorable income tax expense adjustments in 2015 when compared to the same period in 2014 which had a favorable provision to return adjustment that reduced income tax expense.

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.

At June 30, 2015 and December 31, 2014, we had a total of $11.0 million and $12.6 million in gross unrecognized tax benefits, respectively.  Of this amount, $7.0 million and $8.0 million represents the amount of unrecognized tax benefits that, if recognized, would impact our effective tax rate as of June 30, 2015 and December 31, 2014.  Unrecognized tax benefits were a net decrease of $1.1 million and $0.8 million during the three months ended June 30, 2015 and 2014, respectively. Unrecognized tax benefits were a net decrease of $1.6 million and $1.3 million during the six months ended June 30, 2015 and 2014, respectively. The net decreases during the three month periods of 2015 and 2014 were due mainly to the expiration of certain statutes of limitation net of additions with respective states.  This had the effect of decreasing the effective state tax rate during these respective periods. The total net amount of accrued interest and penalties for such unrecognized tax benefits was $4.4 million and $5.7 million at June 30, 2015 and December 31, 2014 and is included in income taxes payable in the consolidated balance sheets.  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. Net interest and penalties included in income tax expense for the three month period ended June 30, 2015 and 2014 was a benefit of approximately $0.7 million and $0.5 million, respectively. Net interest and penalties included in income tax expense for the six month period ended June 30, 2015 and 2014 was a benefit of approximately $1.2 million and $1.2 million, respectively. Income tax expense was reduced during the three and six months ended June 30, 2015 and 2014 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:

	2015
	(in thousands)
Balance at January 1, 2015	$	12,632
Additions based on tax positions related to current year	434
Additions for tax positions of prior years	—
Reductions for tax positions of prior years	(90		)
Reductions due to lapse of applicable statute of limitations	(1,927		)
Settlements	—
Balance at June 30, 2015	$	11,049

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 to be a decrease of approximately $1.0 million to a decrease of $2.0 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 2012 and forward. Tax years 2005 and forward are subject to audit by state tax authorities depending on the tax code and administrative practice of each state.

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Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Operating Revenue	$ 191,684	$ 226,785	$ 379,207	$ 451,265
Operating Expenses
Salaries, wages, and benefits	70,904	71,240	141,900	142,185
Rent and purchased transportation	9,211	13,741	18,537	28,252
Fuel	34,196	59,338	68,452	122,563
Operations and maintenance	8,379	9,776	16,512	19,897
Operating taxes and licenses	4,378	5,319	9,192	10,165
Insurance and claims	3,469	4,370	10,113	11,465
Communications and utilities	1,453	1,553	2,996	3,383
Depreciation and amortization	26,876	26,668	52,850	51,241
Other operating expenses	6,747	7,997	14,505	16,687
Gain on disposal of property and equipment	(9,668)	(13,859)	(19,849)	(15,903)
Total operating expenses	155,945	186,143	315,208	389,935
Operating income	35,739	40,642	63,999	61,330
Interest income	61	106	93	142
Interest expense	0	(132)	(19)	(287)
Income before income taxes	35,800	40,616	64,073	61,185
Federal and state income taxes	12,484	14,144	23,145	20,634
Net income	23,316	26,472	40,928	40,551
Other comprehensive income, net of tax	0	0	0	0
Comprehensive income	$ 23,316	$ 26,472	$ 40,928	$ 40,551
Net income per share
Basic	$ 0.27	$ 0.30	$ 0.47	$ 0.46
Diluted	$ 0.27	$ 0.30	$ 0.47	$ 0.46
Weighted average shares outstanding
Basic	87,814	87,728	87,802	87,716
Diluted	87,967	87,900	87,966	87,908
Dividends declared per share	$ 0.02	$ 0.02	$ 0.04	$ 0.04

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Prepaid Tires, Property, Equipment and Depreciation

6 Months Ended

Jun. 30, 2015

Property, Plant and Depreciation [Abstract]

Property, Equipment, and Depreciation

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 $0.3 million and $0.3 million for the three months ended June 30, 2015 and 2014 and $0.5 million and $0.5 million for the six months ended June 30, 2015 and 2014, respectively, have been included in communication 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 using the 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.

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Cash and Cash Equivalents

6 Months Ended

Jun. 30, 2015

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalents

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 June 30, 2015, restricted and designated cash and investments totaled $16.7 million with $5.7 million included in other current assets and $11.0 million included in other non-current assets in the consolidated balance sheet. Restricted and designated cash and investments totaled $12.6 million at December 31, 2014, all of which was included in other non-current assets in the consolidated balance sheet.  The restricted funds represent deposits required by state agencies for self-insurance purposes and designated funds that are earmarked for a specific purpose and not for general business use.

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Basis of Presentation Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2015

Basis of Presentation [Abstract]

Basis of Presentation [Policy Text Block]

Basis of Presentation

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.

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. The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information and notes to the financial statements required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, all normal, recurring adjustments considered necessary for a fair presentation have been included. The consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes for the year ended December 31, 2014 included in the Annual Report on Form 10-K of the Company filed with the Securities and Exchange Commission on March 2, 2015. Interim results of operations are not necessarily indicative of the results to be expected for the full year or any other interim periods.

Use of Estimates, Policy [Policy Text Block]

Use of Estimates

The preparation of the consolidated financial statements in conformity with 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 or geographical-based regional terminals individually meet the definition of a segment. Our Chief Operating Decision Maker oversees and manages all of our transportation services and regional terminals, on a combined basis, including the legacy transportation services of acquired entities. 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.

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

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 for financial statement purposes is computed by the straight-line method for all assets other than tractors.  We recognize depreciation expense on tractors using the 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.

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.

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 temporary differences reverse. The effect of a change in tax rates on deferred taxes is recognized in the period that the change is enacted. A valuation allowance is recorded to reduce the Company's deferred tax assets to the amount that is more likely than not to be realized.

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.

Subsequent Events, Policy [Policy Text Block]

Subsequent Events

We have evaluated events occurring subsequent to June 30, 2015 through the filing date of this Quarterly Report on Form 10-Q for disclosure.

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Operating Leases

6 Months Ended

Jun. 30, 2015

Leases [Abstract]

Operating Leases

 Operating Leases

We have operating leases for certain revenue equipment. During 2015, these leases are all with a commercial tractor dealership, owned by a board member and certain of our employees. During 2014, a portion of our operating leases were with the noted commercial tractor dealership. Rent expense for these leases were $0.8 million and $1.9 million (including related-party rental payments totaling $0.8 million and $1.9 million) for the three and six months ended June 30, 2015, respectively. Rent expense for these leases were $2.3 million and $4.6 million (including related-party rental payments totaling $1.8 million, and $3.6 million), for the three and six months ended 2014, respectively. These expenses were included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire in 2015 and 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. Rent expenses for terminal facilities were $1.0 million and $2.1 million (including related-party rental payments totaling $1.0 million and $1.9 million), for the three and six months ended June 30, 2015, respectively. Rent expenses for terminal facilities were $1.0 million and $2.1 million (including related-party rental payments totaling $1.0 million and $2.0 million), for the three and six months ended June 30, 2014, respectively. These expenses were included in rent and purchased transportation in the consolidated statements of comprehensive income. The various leases expire from 2015 through 2018 and the majority of these facilities contain options to renew. We exercised the purchase option on the Pontoon Beach, IL terminal and finalized this purchase during the second quarter of 2015. We paid $4.9 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 Notes 6 and 13 for additional information.

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Equity

6 Months Ended

Jun. 30, 2015

Share Repurchases [Abstract]

Stockholders' Equity

Equity

In September 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.  Approximately 3.2 million shares remain authorized for repurchase under the program as of June 30, 2015. There were no shares repurchased in the open market during the three and six months ended June 30, 2015 and 2014. The authorization remains open at June 30, 2015 and has no expiration date. The share repurchase authorization is discretionary and may be suspended or discontinued at any time without prior notice.  

During the three and six months ended June 30, 2015 and 2014, our Board of Directors declared regular quarterly dividends totaling $1.8 million, $3.5 million, and $1.8 million, $3.5 million respectively.  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.

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Other Intangible, Net and Goodwill

6 Months Ended

Jun. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and Goodwill

Other Intangibles, Net and Goodwill

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. There was no change in the gross amount of identifiable intangible assets during the three and six months ended June 30, 2015. Amortization expense of $0.6 million, $1.2 million and $0.6 million, $1.2 million for the three and six months ended June 30, 2015 and 2014, respectively, was included in depreciation and amortization in the consolidated statement of comprehensive income. Intangible assets subject to amortization consisted of the following at June 30, 2015:

	Amortization period (years)	Gross Amount		Accumulated Amortization		Net intangible assets
		(in thousands)
Customer relationships	20	$	7,600	$	618	$	6,982
Tradename	6	7,400		2,004		5,396
Covenants not to compete	10	3,100		507		2,593
Real estate options	2.2	942		765		177
		$	19,042	$	3,894	$	15,148

Carrying amounts of goodwill were as follows:

	(in thousands)
Balance at December 31, 2014	$	100,212
Acquisitions	—
Balance at June 30, 2015	$	100,212

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Earnings Per Share

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Earnings Per Share

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 three and six months ended June 30, 2015 and June 30, 2014, we had outstanding restricted 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 the three and six months ended June 30, 2015 and June 30, 2014 is as follows (in thousands, except per share data):

	Three months ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	23,316	87,814	$	0.27
Effect of restricted stock	—		153
Diluted EPS	$	23,316	87,967	$	0.27

	Three months ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	26,472	87,728	$	0.30
Effect of restricted stock	—		172
Diluted EPS	$	26,472	87,900	$	0.30

	Six Months Ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,928	87,802	$	0.47
Effect of restricted stock	—		164
Diluted EPS	$	40,928	87,966	$	0.47

	Six Months Ended June 30, 2014
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,551	87,716	$	0.46
Effect of restricted stock	—		192
Diluted EPS	$	40,551	87,908	$	0.46

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2015

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. As of June 30, 2015, there were 0.4 million shares that had been granted to employees. 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. There were no shares granted in 2012. The shares granted in 2013 through 2015 are also service based awards and generally vest evenly over two to four years from the date of 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 the December 14, 2011 grant date was $13.57 and ranged between $13.86 and $27.47 on the various grant dates for the shares issued in 2013 through June 30, 2015. 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 $0.3 million and $0.6 million and for the three and six months ended June 30, 2015, respectively. Compensation expense associated with restricted stock awards was $0.3 million and $0.5 million for the three and six months ended June 30, 2014. Unrecognized compensation expense was $0.9 million at June 30, 2015 which will be recognized over a remaining weighted average period of 1.3 years.

The following tables summarizes our restricted stock award activity for the three and six months ended June 30, 2015 and 2014.

	Three Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	175.1		$	16.49
Granted	2.2		21.19
Vested	(70.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Six Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	183.1		$	16.78
Granted	4.2		24.06
Vested	(80.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Three and Six Months Ended June 30, 2014
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	211.6		$	13.81
Granted	8.5		22.01
Vested	(72.7	)	—
Forfeited	—		—
Outstanding (unvested) at end of period	147.4		$	14.16

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Other Intangible, Net and Goodwill Changes carrying amount of goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2015 USD ($)
Intangible Assets and Goodwill [Abstract]
Goodwill, Beginning balance	$ 100,212
Acquisitions	0
Goodwill, Ending Balance	$ 100,212

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

We are a party to ordinary, routine litigation and administrative proceedings incidental to its 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, to be delivered through the remainder of 2015 was $58.3 million at June 30, 2015. We have a purchase commitment with a related party of $11.6 million$12.0 million related to our exercise of a purchase option on the Rancho Cucamonga, CA terminal expected to be finalized by September 30, 2015.

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

Stock-Based Compensation [Abstract]

Disclosure of restricted stock award activity

The following tables summarizes our restricted stock award activity for the three and six months ended June 30, 2015 and 2014.

	Three Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	175.1		$	16.49
Granted	2.2		21.19
Vested	(70.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Six Months Ended June 30, 2015
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	183.1		$	16.78
Granted	4.2		24.06
Vested	(80.5	)	—
Forfeited	(2.2	)	—
Outstanding (unvested) at end of period	104.6		$	18.04

	Three and Six Months Ended June 30, 2014
	Number of Shares of Restricted Stock Awards (in thousands)		Weighted Average Grant Date Fair Value
Unvested at beginning of period	211.6		$	13.81
Granted	8.5		22.01
Vested	(72.7	)	—
Forfeited	—		—
Outstanding (unvested) at end of period	147.4		$	14.16

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Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 800	$ 2,300	$ 1,900	$ 4,600
related party payment for terminal purchase	4,875	2,825	4,875	2,825
Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	799	1,817	1,884	3,646
Terminal Facilities
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	1,000	1,000	2,100	2,100
Terminal Facilities | Related Party
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 963	$ 977	$ 1,900	$ 2,000

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Consolidated Statements of Stockholders' Equity - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands	Total	Capital Stock, Common	Additional Paid-in Capital	Retained Earnings	Treasury Stock
Balance at Dec. 31, 2014	$ 476,587	$ 907	$ 4,058	$ 509,834	$ (38,212)
Net income	40,928	0	0	40,928	0
Dividends on common stock, $0.04 per share	(3,519)	0	0	3,519	0
Stock-based compensation, net of tax	714	0	(324)	0	1,038
Balance at Jun. 30, 2015	$ 514,710	$ 907	$ 3,734	$ 547,243	$ (37,174)

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Segment Information

6 Months Ended

Jun. 30, 2015

Segment Information [Abstract]

Segment Information

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 or geographical-based regional terminals individually meet the definition of a segment. Our Chief Operating Decision Maker oversees and manages all of our transportation services and regional terminals, on a combined basis, including the legacy transportation services of acquired entities. 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.

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2015

Line of Credit, Long-Term Debt [Abstract]

Schedule of Long-term Debt

Long term debt consisted of the following at June 30, 2015 and December 31, 2014 (in thousands):

	June 30, 2015		December 31, 2014
Long-term debt	$	—	$	24,600

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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		40 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2015	Jun. 30, 2015	Dec. 14, 2011	Jul. 11, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual Vesting Percentage			20.00%
Weighted Average Exercise Price of Stock Awards	$ 16.49	$ 14.16	$ 16.78	$ 13.81	$ 16.49	$ 18.04	$ 13.57
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition					1 year 3 months
Restricted Stock Shares Authorized								900,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			430,000
Stock-based Compensation	$ 292	$ 285	$ 575	$ 546
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized						$ 900
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)	175,100		183,100	211,600
Unvested at beginning of year, Weighted Average Grant Date Fair Value (in dollars)	$ 16.49		$ 16.78	$ 13.81
Share-based Compensation Arrangements by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,200		4,200	8,500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 21.19		$ 24.06	$ 22
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(70,500)		(80,500)	(72,700)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value			$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	2,200		2,200	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 0		$ 0	$ 0
Outstanding (unvested) at end of year, Number of Restricted Stock Awards (in shares)	104,600	147,400	104,600	147,400	175,100
Outstanding (unvested) at end of year, Weighted Average Grant Date Fair Value (in dollars)	$ 18.04	$ 14.16	$ 18.04	$ 14.16	$ 16.49
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value price of stock awards lower			13.86
weighted average fair value price of stock awards upper			$ 27.47

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Related Party

6 Months Ended

Jun. 30, 2015

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, which began November 11, 2013, 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 exercised our option to purchase and ultimately acquired one leased location from a limited liability company referenced above on June 30, 2015.

We purchased tractors from and sold tractors to the commercial tractor dealership noted above. We 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 the commercial tractor dealership $1.3 million and $0.1 million, included in accounts payable and accrued liabilities in the consolidated balance sheets at June 30, 2015 and December 31, 2014, respectively, for tractors delivered but not paid for prior to these dates and outstanding parts and services. The commercial tractor dealership owed us $0.5 million and $0.0 million, included in other current assets in the consolidated balance sheets at June 30, 2015 and December 31, 2014, respectively, for tractors traded but not paid for prior to those dates.

The related payments (receipts) with related parties for the three and six months ended June 30, 2015 and 2014 (in thousands) were as follows:

	Three months ended June 30,
	2015			2014
Payments for tractor purchases	$	22,795		$	505
Receipts for tractor sales	(11,041		)	(1,299		)
Revenue equipment lease payments	799			1,817
Payments for parts and services	1,065			1,364
Terminal lease payments	963			977
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(141		)
	$	19,456		$	6,048

	Six months ended June 30,
	2015			2014
Payments for tractor purchases	$	24,895		$	11,988
Receipts for tractor sales	(19,567		)	(4,497		)
Revenue equipment lease payments	1,884			3,646
Payments for parts and services	2,426			2,906
Terminal lease payments	1,919			2,005
Terminal lease purchase option payment	4,875			2,825
Administrative services receipts	—			(282		)
	$	16,432		$	18,591