10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _____________________________________________________________________

Form 10-Q

 _____________________________________________________________________

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

For the Quarterly Period Ended March 31, 2015

OR

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

For the transition period from to

Commission File Number 001-35007

_____________________________________________________________________

Swift Transportation Company

(Exact name of registrant as specified in its charter)

_____________________________________________________________________

Delaware	20-5589597
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

2200 South 75th Avenue

Phoenix, AZ 85043

(Address of principal executive offices and zip code)

(602) 269-9700

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

______________________________________________________________________

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 ýNoo

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  ý No  o

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

Large accelerated filer	ý	Accelerated filer	o
Non-accelerated filer	o (Do not check if a smaller reporting company)	Smaller reporting company	o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yeso  No  ý

The number of outstanding shares of the registrant’s Class A common stock as of May 1, 2015 was 91,382,832 and the number of outstanding shares of the registrant’s Class B common stock as of May 1, 2015 was 50,991,938.

SWIFT TRANSPORTATION COMPANY

TABLE OF CONTENTS

PART I FINANCIAL INFORMATION	PAGE
Item 1. Financial Statements
Consolidated Balance Sheets as of March 31, 2015 (Unaudited) and December 31, 2014	4
Consolidated Income Statements (Unaudited) for the Three Months Ended March 31, 2015 and 2014	5
Consolidated Statements of Comprehensive Income (Unaudited) for the Three Months Ended March 31, 2015 and 2014	6
Consolidated Statement of Stockholders' Equity (Unaudited) for the Three Months Ended March 31, 2015	7
Consolidated Statements of Cash Flows (Unaudited) for the Three Months Ended March 31, 2015 and 2014	8
Notes to Consolidated Financial Statements (Unaudited)	10
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	22
Item 3. Quantitative and Qualitative Disclosures About Market Risk	43
Item 4. Controls and Procedures	43
PART II OTHER INFORMATION
Item 1. Legal Proceedings	44
Item 1A. Risk Factors	44
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	44
Item 3. Defaults Upon Senior Securities	44
Item 4. Mine Safety Disclosures	44
Item 5. Other Information	44
Item 6. Exhibits	44
Signatures	45

2

SWIFT TRANSPORTATION COMPANY

GLOSSARY OF TERMS

The following glossary provides definitions for certain acronyms and terms used in this Quarterly Report on Form 10-Q. These acronyms and terms are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document.
Term	Definition
Swift/the Company/Management/We/Us/Our	Unless otherwise indicated or the context otherwise requires, these terms represent Swift Transportation Company and its subsidiaries. Swift Transportation Company is the holding company for Swift Transportation Co., LLC (a Delaware limited liability company) and Interstate Equipment Leasing, LLC.
2007 Transactions	In April 2007, Jerry Moyes and his wife contributed their ownership of all of the issued and outstanding shares of IEL to Swift Corporation in exchange for additional Swift Corporation shares. In May 2007, the Moyes Affiliates, contributed their shares of Swift Transportation Co., Inc. common stock to Swift Corporation in exchange for additional Swift Corporation shares. Swift Corporation then completed its acquisition of Swift Transportation Co., Inc. through a merger on May 10, 2007, thereby acquiring the remaining outstanding shares of Swift Transportation Co., Inc. common stock. Upon completion of the 2007 Transactions, Swift Transportation Co., Inc. became a wholly-owned subsidiary of Swift Corporation. At the close of the market on May 10, 2007, the common stock of Swift Transportation ceased trading on NASDAQ.
2011 RSA	The Company's previous Receivables Sale Agreement, entered into in 2011, with unrelated financial entities
2013 Agreement	The Company's Second Amended and Restated Credit Agreement, replaced by the 2014 Agreement
2013 RSA	Second Amended and Restated Receivables Sale Agreement, entered into in 2013 by SRCII, with unrelated financial entities, "The Purchasers"
2014 Agreement	The Company's Third Amended and Restated Credit Agreement
AOCI	Accumulated Other Comprehensive Income (Loss)
ASC	Accounting Standards Codification
ASU	Accounting Standards Update
Central	Central Refrigerated Transportation, LLC (formerly Central Refrigerated Transportation, Inc.)
COFC	Container on Flat Car
CSA	Compliance Safety Accountability
Deadhead	Tractor movement without hauling freight (unpaid miles driven)
DOE	United States Department of Energy
EBITDA	Earnings Before Interest, Taxes, Depreciation and Amortization
EPS	Earnings Per Share
FASB	Financial Accounting Standards Board
IEL	Interstate Equipment Leasing, LLC (formerly Interstate Equipment Leasing, Inc.)
IPO	Initial Public Offering
LIBOR	London InterBank Offered Rate
Moyes Affiliates	Jerry Moyes, The Jerry and Vickie Moyes Family Trust dated December 11, 1987, and various Moyes children’s trusts
NASDAQ	National Association of Securities Dealers Automated Quotations
NLRB	National Labor Relations Board
OID	Original Issue Discount
Revenue xFSR	Revenue, Excluding Fuel Surcharge Revenue
Revolver	Revolving line of credit
SEC	United States Securities and Exchange Commission
Senior Notes	The Company's previously outstanding senior secured second priority notes
SRCII	Swift Receivables Company II, LLC
The Purchasers	Unrelated financial entities in the 2013 RSA, which was entered into by SRCII
Term Loan A	The Company's first lien term loan A under the 2014 Agreement
Term Loan B	The Company's first lien term loan B under the 2014 Agreement
TOFC	Trailer on Flat Car
US-GAAP (or GAAP)	United States Generally Accepted Accounting Principles

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PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

CONSOLIDATED BALANCE SHEETS

(UNAUDITED)

	March 31, 2015			December 31, 2014
	(In thousands, except share data)
ASSETS
Current assets:
Cash and cash equivalents	$	68,736		$	105,132
Restricted cash	61,692			45,621
Restricted investments, held to maturity, amortized cost	18,286			24,510
Accounts receivable, net	452,757			478,999
Equipment sales receivable	689			288
Income tax refund receivable	4,233			18,455
Inventories and supplies	18,074			18,992
Assets held for sale	3,438			2,907
Prepaid taxes, licenses, insurance and other	48,874			51,441
Deferred income taxes	35,276			44,861
Current portion of notes receivable	8,730			9,202
Total current assets	720,785			800,408
Property and equipment, at cost:
Revenue and service equipment	2,120,927			2,061,835
Land	122,835			122,835
Facilities and improvements	273,567			268,025
Furniture and office equipment	68,927			67,740
Total property and equipment	2,586,256			2,520,435
Less: accumulated depreciation and amortization	1,017,060			978,305
Net property and equipment	1,569,196			1,542,130
Other assets	37,957			41,855
Intangible assets, net	295,729			299,933
Goodwill	253,256			253,256
Total assets	$	2,876,923		$	2,937,582
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	162,226		$	160,186
Accrued liabilities	110,947			100,329
Current portion of claims accruals	73,429			81,251
Current portion of long-term debt	32,581			31,445
Current portion of capital lease obligations	45,891			42,902
Fair value of interest rate swaps	4,233			6,109
Total current liabilities	429,307			422,222
Revolving line of credit	—			57,000
Long-term debt, less current portion	867,042			871,615
Capital lease obligations, less current portion	153,786			158,104
Claims accruals, less current portion	152,732			143,693
Deferred income taxes	465,419			480,640
Securitization of accounts receivable	294,000			334,000
Other liabilities	32			14
Total liabilities	2,362,318			2,467,288
Contingencies (Note 9)
Stockholders’ equity:
Preferred stock, par value $0.01 per share; Authorized 10,000,000 shares; none issued	—			—
Class A common stock, par value $0.01 per share; Authorized 500,000,000 shares; 91,366,626 and 91,103,643 shares issued and outstanding as of March 31, 2015 and December 31, 2014, respectively	914			911
Class B common stock, par value $0.01 per share; Authorized 250,000,000 shares; 50,991,938 shares issued and outstanding as of March 31, 2015 and December 31, 2014	510			510
Additional paid-in capital	786,455			781,124
Accumulated deficit	(272,177		)	(310,017		)
Accumulated other comprehensive (loss) income	(1,199		)	(2,336		)
Noncontrolling interest	102			102
Total stockholders’ equity	514,605			470,294
Total liabilities and stockholders’ equity	$	2,876,923		$	2,937,582

See accompanying notes to consolidated financial statements.

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CONSOLIDATED INCOME STATEMENTS

(UNAUDITED)

	Three Months Ended March 31,
	2015			2014
	(In thousands, except per share data)
Operating revenue:
Revenue, excluding fuel surcharge revenue	$	894,864		$	816,999
Fuel surcharge revenue	120,280			191,447
Operating revenue	1,015,144			1,008,446
Operating expenses:
Salaries, wages and employee benefits	261,654			229,366
Operating supplies and expenses	94,204			80,825
Fuel	106,907			156,022
Purchased transportation	288,811			319,169
Rental expense	61,975			51,719
Insurance and claims	44,307			42,448
Depreciation and amortization of property and equipment	56,927			56,175
Amortization of intangibles	4,204			4,204
Gain on disposal of property and equipment	(3,932		)	(3,159		)
Communication and utilities	7,499			7,170
Operating taxes and licenses	17,588			18,337
Total operating expenses	940,144			962,276
Operating income	75,000			46,170
Other expenses (income):
Interest expense	10,388			23,225
Derivative interest expense	2,793			1,653
Interest income	(587		)	(766		)
Loss on debt extinguishment	—			2,913
Non-cash impairments of non-operating assets	1,480			—
Other	(605		)	(864		)
Total other expenses (income), net	13,469			26,161
Income before income taxes	61,531			20,009
Income tax expense	23,691			7,704
Net income	$	37,840		$	12,305
Basic earnings per share	$	0.27		$	0.09
Diluted earnings per share	$	0.26		$	0.09
Shares used in per share calculations:
Basic	142,199			140,981
Diluted	143,955			143,018

See accompanying notes to consolidated financial statements.

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

	Three Months Ended March 31,
	2015			2014
	(In thousands)
Net income	$	37,840		$	12,305
Accumulated losses on derivatives reclassified to derivative interest expense	1,848			1,314
Other comprehensive income before income taxes	1,848			1,314
Income tax effect of items within other comprehensive income	(711		)	(506		)
Other comprehensive income, net of income taxes	1,137			808
Total comprehensive income	$	38,977		$	13,113

See accompanying notes to consolidated financial statements.

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CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

(UNAUDITED)

	Class A Common Stock			Class B Common Stock			Additional Paid-in Capital		Accumulated Deficit			Accumulated Other Comprehensive (Loss) Income			Noncontrolling Interest		Total Stockholders’ Equity
	Shares	Par Value		Shares	Par Value
	(In thousands, except per share data)
Balances, December 31, 2014	91,103,643	$	911	50,991,938	$	510	$	781,124	$	(310,017	)	$	(2,336	)	$	102	$	470,294
Common stock issued under stock plans	252,453	3					2,389										2,392
Stock-based compensation expense							1,483										1,483
Excess tax benefits from exercise of stock options							1,172										1,172
Shares issued under employee stock purchase plan	10,530	—					287										287
Net income									37,840								37,840
Other comprehensive income, net of income taxes												1,137					1,137
Balances, March 31, 2015	91,366,626	$	914	50,991,938	$	510	$	786,455	$	(272,177	)	$	(1,199	)	$	102	$	514,605

See accompanying notes to consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

	Three Months Ended March 31,
	2015			2014
	(In thousands)
Cash flows from operating activities:
Net income	$	37,840		$	12,305
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, equipment and intangibles	61,131			60,379
Amortization of debt issuance costs, original issue discount, and losses on terminated swaps	2,606			2,515
Gain on disposal of property and equipment less write-off of totaled tractors	(3,698		)	(2,958		)
Impairments	1,480			—
Deferred income taxes	(6,346		)	(7,942		)
Provision for losses on accounts receivable	1,913			792
Non-cash loss on debt extinguishment and write-offs of deferred financing costs and original issue discount	—			2,913
Non-cash equity compensation	1,483			1,061
Excess tax benefits from stock-based compensation	(1,172		)	(1,078		)
Income effect of mark-to-market adjustment of interest rate swaps	(119		)	(32		)
Increase (decrease) in cash resulting from changes in:
Accounts receivable	24,329			(37,064		)
Inventories and supplies	918			653
Prepaid expenses and other current assets	16,789			18,446
Other assets	1,450			2,871
Accounts payable, accrued and other liabilities	(10,447		)	23,296
Net cash provided by operating activities	128,157			76,157
Cash flows from investing activities:
(Increase) decrease in restricted cash	(16,071		)	3,821
Proceeds from maturities of investments	14,190			9,500
Purchases of investments	(8,016		)	(9,664		)
Proceeds from sale of property and equipment	13,370			28,428
Capital expenditures	(62,006		)	(60,058		)
Payments received on notes receivable	2,065			1,553
Expenditures on assets held for sale	(2,313		)	(1,521		)
Payments received on assets held for sale	1,815			2,269
Payments received on equipment sale receivables	352			469
Net cash used in investing activities	(56,614		)	(25,203		)
Cash flows from financing activities:
Repayment of long-term debt and capital leases	(19,294		)	(46,526		)
Proceeds from long-term debt	4,504			—
Net repayments on revolving line of credit	(57,000		)	(17,000		)
Borrowings under accounts receivable securitization	10,000			—
Repayment of accounts receivable securitization	(50,000		)	(5,000		)
Proceeds from common stock issued	2,679			3,414
Excess tax benefits from stock-based compensation	1,172			1,078
Net cash used in financing activities	(107,939		)	(64,034		)
Net decrease in cash and cash equivalents	(36,396		)	(13,080		)
Cash and cash equivalents at beginning of period	105,132			59,178
Cash and cash equivalents at end of period	$	68,736		$	46,098

 See accompanying notes to consolidated financial statements.

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CONSOLIDATED STATEMENTS OF CASH FLOWS — CONTINUED

(UNAUDITED)

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Supplemental disclosures of cash flow information:
Cash paid during the period for:
Interest	$	13,912	$	11,854
Income taxes	1,507		3,463
Non-cash investing activities:
Equipment purchase accrual	$	59,814	$	59,867
Notes receivable from sale of assets	1,298		2,762
Equipment sales receivables	753		7,376
Non-cash financing activities:
Capital lease additions	$	9,988	$	—

See accompanying notes to consolidated financial statements.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Note 1 — Introduction and Basis of Presentation

Certain acronyms and terms used throughout this Quarterly Report on Form 10-Q are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document.

Description of Business

Swift is a transportation solutions provider, headquartered in Phoenix, Arizona. As of March 31, 2015, the Company's fleet of revenue equipment included 19,535 tractors (comprised of 14,680 company tractors and 4,855 owner-operator tractors), 61,780 trailers and 9,150 intermodal containers. The Company’s four reportable segments are Truckload, Dedicated, Central Refrigerated and Intermodal.

Seasonality

In the truckload industry, results of operations generally show a seasonal pattern. As customers ramp up for the holiday season at year-end, the late third and fourth quarters have historically been the Company's strongest volume quarters. As customers reduce shipments after the winter holiday season, the first quarter has historically been a lower volume quarter than the other three quarters. In recent years, the macro consumer buying patterns combined with shippers’ supply chain management, which historically contributed to the fourth quarter “peak” season, continued to evolve. As a result, the Company's fourth quarter 2014, 2013 and 2012 volumes were more evenly disbursed throughout the quarter rather than peaking early in the quarter. In the eastern and mid-western United States, and to a lesser extent in the western United States, during the winter season the Company's equipment utilization typically declines and operating expenses generally increase, with fuel efficiency declining because of engine idling and severe weather sometimes creating higher accident frequency, increased claims, and more equipment repairs. Revenue may also be affected by holidays as a result of curtailed operations or vacation shutdowns, because the Company's revenue is directly related to available working days of shippers. From time to time, the Company also suffers short-term impacts from severe weather and similar events, such as tornadoes, hurricanes, blizzards, ice storms, floods, fires, earthquakes, and explosions that could add volatility to or harm the Company's results of operations.

Basis of Presentation

The consolidated financial statements and footnotes included in this Quarterly Report on Form 10-Q should be read in conjunction with the financial statements and footnotes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014. The consolidated financial statements include the accounts of Swift Transportation Company and its wholly-owned subsidiaries. In management's opinion, these financial statements were prepared in accordance with principles generally accepted in the United States and include all adjustments necessary for the fair presentation of the periods presented.

Changes in Presentation

Beginning in 2015, the Company separately presents excess tax benefits from stock-based compensation within "Net cash provided by operating activities" in the consolidated statements of cash flows. The prior period presentation has been retrospectively adjusted to reclassify the amount out of "Accounts payable, accrued and other liabilities" and into the new line item "Excess tax benefits from stock-based compensation."  The change in presentation has no net impact on “Net cash provided by operating activities."

Also beginning in 2015, the Company presents gross amounts of its investment in securities activities as "Proceeds from maturities of investments" and "Purchases of investments" in the consolidated statements of cash flows. The prior period presentation has been retrospectively adjusted to accommodate this gross presentation. The change in presentation has no net impact on "Net cash used in investing activities."

Beginning in 2015, the Company has disaggregated "Operating revenue" in the consolidated income statements into the line items "Revenue, excluding fuel surcharge revenue" and "Fuel surcharge revenue." The change in presentation has no net impact on "Operating revenue."

Note 2 — Recently Issued Accounting Pronouncements

In April 2015, FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which amends ASC Subtopic 835-30, Interest — Imputation of Interest. The amendments in this ASU simplify the presentation of debt issuance costs and align the presentation with debt discounts. Entities will be required to present debt issuance costs as a direct deduction from the face amount of the related note, rather than as a deferred charge. Upon adoption, the amended guidance will affect Swift's classification of debt issuance costs, which are currently classified in "Other assets" in the consolidated balance sheets. The reclassification of debt

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) — CONTINUED

issuance costs will effectively decrease "Other assets" and correspondingly decrease the respective long-term debt balances. The amendments in this ASU require retrospective application, with related disclosures for a change in accounting principle. Upon adoption, the Company will comply with these disclosure requirements by providing the nature and reason for the change, the transition method, a description of the adjusted prior period information and the effect of the change on the financial statement line items. For public business entities, the amendments in this ASU will be effective for financial statements issued for fiscal years beginning after December 15, 2015, and the interim periods within those fiscal years. Early adoption is permitted; however, the Company expects to adopt this guidance at the beginning of 2016.

In February 2015, FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which amends ASC Topic 810, Consolidation, by changing the analysis that reporting entities are required to perform to determine whether certain types of legal entities should be consolidated. The amendments in this ASU focus on limited partnerships and similar legal entities (such as limited liability companies); however, all legal entities are subject to reevaluation under the revised consolidation model. The revised consolidation model modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, and eliminates the presumption that a general partner should consolidate a limited partnership. It also affects the consolidation analysis of reporting entities that are involved with variable interest entities, especially those that have fee arrangements and related-party relationships. The amendments in the ASU also affect certain investment funds. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2015, and the interim periods within those fiscal years. Early adoption is permitted. Entities may use a retrospective approach, or a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the year of adoption. The Company is currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

Note 3 — Restricted Investments

The following table presents the cost or amortized cost, gross unrealized gains and temporary losses, and estimated fair value of the Company’s restricted investments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	16,861	$	6	$	(3	)	$	16,864
Negotiable certificates of deposit	1,425		1		—			1,426
Total restricted investments	$	18,286	$	7	$	(3	)	$	18,290
	December 31, 2014
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	20,892	$	2	$	(10	)	$	20,884
Foreign corporate securities	1,503		—		—			1,503
Negotiable certificates of deposit	2,115		—		—			2,115
Total restricted investments	$	24,510	$	2	$	(10	)	$	24,502

As of March 31, 2015, the contractual maturities of the restricted investments were one year or less. There were 11 securities and 24 securities that were in an unrealized loss position for less than twelve months as of March 31, 2015 and December 31, 2014, respectively. The Company did not recognize any impairment losses for the three months ended March 31, 2015 or 2014.

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Note 4 — Goodwill and Other Intangible Assets

There were no goodwill impairments recorded during the three months ended March 31, 2015 or 2014. Intangible assets as of March 31, 2015 and December 31, 2014 were as follows (in thousands):

	March 31, 2015			December 31, 2014
Customer Relationships:
Gross carrying value	$	275,324		$	275,324
Accumulated amortization	(160,632		)	(156,428		)
Trade Name:
Gross carrying value	181,037			181,037
Intangible assets, net	$	295,729		$	299,933

The following table presents amortization of intangibles for the three months ended March 31, 2015 and 2014, related to intangible assets recognized in conjunction with the 2007 going private transaction and the previous intangible assets existing prior to the 2007 going private transaction (in thousands):

	Three Months Ended March 31,
	2015		2014
Amortization of intangible assets related to 2007 going private transaction	$	3,912	$	3,912
Amortization related to intangible assets existing prior to the 2007 going private transaction	292		292
Amortization of intangibles	$	4,204	$	4,204

Note 5 — Accounts Receivable Securitization

In June 2013, SRCII entered into the 2013 RSA with the Purchasers to replace the Company's prior 2011 RSA, and to sell, on a revolving basis, undivided interests in the Company’s accounts receivable. Pursuant to the 2013 RSA, the Company’s receivable originator subsidiaries sell all of their eligible accounts receivable to SRCII, which in turn sells a variable percentage ownership interest in its accounts receivable to the Purchasers. On September 26, 2014, the Company exercised an accordion option, increasing the maximum borrowing capacity on the 2013 RSA from $325.0 million to $375.0 million. The Company entered into an amendment to the 2013 RSA, effective March 31, 2015, to clarify when the Company’s consent is required in conjunction with a Purchaser’s sale or assignment of any portion of its purchased interest in the receivables and to amend certain of the performance ratios to provide increased flexibility to the Company in managing its receivables.

The facility qualifies for treatment as a secured borrowing under ASC Topic 860, Transfers and Servicing. As such, outstanding amounts are classified as liabilities on the Company’s consolidated balance sheets in "Securitization of accounts receivable."

As of March 31, 2015 and December 31, 2014, interest accrues on the aggregate principal balance at a rate of 0.8% and 0.8%, respectively. Program fees and unused commitment fees are recorded in interest expense in the Company's consolidated income statements. The Company incurred program fees of $1.0 million and $0.8 million, during the three months ended March 31, 2015 and 2014, respectively.

The 2013 RSA is subject to customary fees and contains various customary affirmative and negative covenants, representations and warranties, and default and termination provisions. Collections on the underlying receivables by the Company are held for the benefit of SRCII and the Purchasers in the facility and are unavailable to satisfy claims of the Company and its subsidiaries.

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Note 6 — Debt and Financing

Other than the Company’s accounts receivable securitization, as discussed in Note 5, and its outstanding capital lease obligations as discussed in Note 7, the Company's long-term debt consisted of the following (in thousands):

	March 31, 2015			December 31, 2014
2014 Agreement: Term loan A, due June 2019	$	494,375		$	500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115			396,080
Other	10,133			6,980
Long-term debt	899,623			903,060
Less: current portion of long-term debt	(32,581		)	(31,445		)
Long-term debt, less current portion	$	867,042		$	871,615
Revolving line of credit (1)	$	—		$	57,000
Long-term debt, including revolving line of credit	$	899,623		$	960,060

____________

(1) The Company had outstanding letters of credit, primarily related to workers' compensation and self-insurance liabilities, of $100.3 million at March 31, 2015 and $100.3 million at December 31, 2014, under the revolving line of credit.

Credit Agreement

The Company entered into the 2014 Agreement on June 9, 2014, which included a delayed-draw first lien Term Loan A tranche, a first lien Term Loan B tranche, and a revolving credit line. The following table presents the key terms of the 2014 Agreement (dollars in thousands):

Description	Term Loan A	Term Loan B	Revolver (2)
Maximum borrowing capacity	$500,000	$400,000	$450,000
Final maturity date	June 9, 2019	June 9, 2021	June 9, 2019
Interest rate base	LIBOR	LIBOR	LIBOR
LIBOR floor	—%	0.75%	—%
Interest rate minimum margin (1)	1.50%	2.75%	1.50%
Interest rate maximum margin (1)	2.25%	3.00%	2.25%
Minimum principal payment - amount (3)	$5,625	$1,000	$—
Minimum principal payment - frequency	Quarterly	Quarterly	Once
Minimum principal payment - commencement date (3)	March 31, 2015	June 30, 2014	June 30, 2019

(1) Interest rate margins for the Term Loan A, Term Loan B and Revolver are based on the Company's consolidated leverage ratio. As of March 31, 2015, interest accrues at 1.93% and 3.75% on the Term Loan A and Term Loan B, respectively. As of December 31, 2014, interest accrued at 2.16% and 3.75% on the Term Loan A and Term Loan B, respectively. Prior to January 1, 2015, the minimum and maximum interest rate margins on the Term Loan B were both 3.00%.

(2) The commitment fee for the unused portion of the Revolver is also based on the Company's consolidated leverage ratio, and ranges from 0.25% to 0.35%. As of March 31, 2015, commitment fees on the unused portion of the Revolver accrue at 0.25% and outstanding letter of credit fees accrue at 1.75%. As of December 31, 2014, commitment fees on the unused portion of the Revolver accrued at 0.30% and outstanding letter of credit fees accrued at 2.00%.    

(3) Commencing in March 2017, the minimum quarterly principal payment amount on the Term Loan A is $11.3 million.

The Revolver and Term Loan A of the 2014 Agreement contain certain financial covenants with respect to a maximum leverage ratio and a minimum consolidated interest coverage ratio. The 2014 Agreement provides flexibility regarding the use of proceeds from asset sales, payment of dividends, stock buybacks, and equipment financing. In addition to the financial covenants, the 2014 Agreement includes customary events of default, including a change in control default and certain affirmative and negative covenants, including, but not limited to, restrictions, subject to certain exceptions, on incremental indebtedness, asset sales, certain restricted payments (including dividends), certain incremental investments or advances, transactions with affiliates, engaging in additional business activities, and prepayments of certain other indebtedness.

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Borrowings under the credit facility are secured by substantially all of the assets of the Company and are guaranteed by Swift Transportation Company, IEL, Central Refrigerated Transportation, LLC and its subsidiaries, Swift Transportation Co., LLC and its domestic subsidiaries other than its captive insurance subsidiaries, driver academy subsidiary, and its bankruptcy-remote special purpose subsidiary.

Deferred Loan Costs and Loss on Debt Extinguishment

Deferred loan costs, reported in "Other assets" in the Company's consolidated balance sheets, were $9.7 million and $10.4 million, as of March 31, 2015 and December 31, 2014, respectively.

For the three months ended March 31, 2015, the Company did not incur any loss on debt extinguishment. For the three months ended March 31, 2014, the Company incurred a $2.9 million loss on debt extinguishment related to the Company's repurchase of its Senior Notes.

Note 7 — Leases

The Company finances a portion of its revenue equipment under capital and operating leases and certain terminals under operating leases.

Capital - The Company’s capital leases are typically structured with balloon payments at the end of the lease term equal to the residual value the Company is contracted to receive from certain equipment manufacturers upon sale or trade back to the manufacturers. If the Company does not receive proceeds of the contracted residual value from the manufacturer, the Company is still obligated to make the balloon payment at the end of the lease term. Certain leases contain renewal or fixed price purchase options. The present value of obligations under capital leases is included under "Current portion of capital lease obligations" and "Capital lease obligations, less current portion" in the consolidated balance sheets. As of March 31, 2015, the leases were collateralized by revenue equipment with a cost of $266.7 million and accumulated amortization of $71.6 million. As of December 31, 2014, the leases were collateralized by revenue equipment with a cost of $270.6 million and accumulated amortization of $68.0 million. Amortization of the equipment under capital leases is included in "Depreciation and amortization of property and equipment" in the Company’s consolidated income statements.

Operating - Rent expense related to operating leases was $62.0 million and $51.7 million for the three months ended March 31, 2015 and 2014, respectively.

Note 8 — Purchase Commitments

As of March 31, 2015, the Company had commitments outstanding to acquire revenue equipment for the remainder of 2015 for approximately $705.5 million ($569.4 million of which were tractor commitments) and in 2016 to 2017 for approximately $380.5 million (all of which were tractor commitments). The Company generally has the option to cancel tractor purchase orders with 60 to 90 days notice prior to the scheduled production, although the notice period has lapsed for approximately 31.3% of the tractor commitments outstanding as of March 31, 2015. These purchases are expected to be financed by the combination of operating leases, capital leases, debt, proceeds from sales of existing equipment and cash flows from operations.

As of March 31, 2015, the Company had outstanding purchase commitments of approximately $8.6 million for facilities and non-revenue equipment. Factors such as costs and opportunities for future terminal expansions may change the amount of such expenditures.

Note 9 — Contingencies

The Company is involved in certain claims and pending litigation primarily arising in the normal course of business. The majority of these claims relate to workers' compensation, auto collision and liability, and physical damage and cargo damage. The Company expenses legal fees as incurred and accrues for the uninsured portion of contingent losses from these and other pending claims when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Based on the knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of claims and pending litigation, taking into account existing reserves, will not have a material adverse effect on the Company. Moreover, the results of complex legal proceedings are difficult to predict and the Company’s view of these matters may change in the future as the litigation and events related thereto unfold.

For certain cases described below, management is unable to provide a meaningful estimate of the possible loss or range of loss because, among other reasons, (i) the proceedings are in various stages; (ii) damages have not been sought; (iii) damages are unsupported and/or exaggerated; (iv) there is uncertainty as to the outcome of pending appeals; and/or (v) there are significant

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factual issues to be resolved. For these cases, however, management does not believe, based on currently available information, that the outcomes of these proceedings will have a material adverse effect on our financial condition, though the outcomes could be material to our operating results for any particular period, depending, in part, upon the operating results for such period.

Arizona Owner-operator Class Action Litigation

On January 30, 2004, a class action lawsuit was filed by Leonel Garza on behalf of himself and all similarly situated persons against Swift Transportation: Garza v. Swift Transportation Co., Inc., Case No. CV7-472 ("the Garza Complaint"). The putative class originally involved certain owner-operators who contracted with the Company under a 2001 Contractor Agreement that was in place for one year. The putative class is alleging that the Company should have reimbursed owner-operators for actual miles driven rather than the contracted and industry standard remuneration based upon dispatched miles. The trial court denied plaintiff’s petition for class certification, the plaintiff appealed and on August 6, 2008, the Arizona Court of Appeals issued an unpublished Memorandum Decision reversing the trial court’s denial of class certification and remanding the case back to the trial court. On November 14, 2008, the Company filed a petition for review to the Arizona Supreme Court regarding the issue of class certification as a consequence of the denial of the Motion for Reconsideration by the Court of Appeals. On March 17, 2009, the Arizona Supreme Court granted the Company’s petition for review, and on July 31, 2009, the Arizona Supreme Court vacated the decision of the Court of Appeals opining that the Court of Appeals lacked automatic appellate jurisdiction to reverse the trial court’s original denial of class certification and remanded the matter back to the trial court for further evaluation and determination. Thereafter, the plaintiff renewed the motion for class certification and expanded it to include all persons who were employed by Swift as employee drivers or who contracted with Swift as owner-operators on or after January 30, 1998, in each case who were compensated by reference to miles driven. On November 4, 2010, the Maricopa County trial court entered an order certifying a class of owner-operators and expanding the class to include employees. Upon certification, the Company filed a motion to compel arbitration, as well as filing numerous motions in the trial court urging dismissal on several other grounds including, but not limited to the lack of an employee as a class representative, and because the named owner-operator class representative only contracted with the Company for a three-month period under a one-year contract that no longer exists. In addition to these trial court motions, the Company also filed a petition for special action with the Arizona Court of Appeals, arguing that the trial court erred in certifying the class because the trial court relied upon the Court of Appeals ruling that was previously overturned by the Arizona Supreme Court. On April 7, 2011, the Arizona Court of Appeals declined jurisdiction to hear this petition for special action and the Company filed a petition for review to the Arizona Supreme Court. On August 31, 2011, the Arizona Supreme Court declined to review the decision of the Arizona Court of Appeals. In April 2012, the trial court issued the following rulings with respect to certain motions filed by Swift: (1) denied Swift’s motion to compel arbitration; (2) denied Swift’s request to decertify the class; (3) granted Swift’s motion that there is no breach of contract; and (4) granted Swift’s motion to limit class size based on statute of limitations. On November 13, 2014, the court denied plaintiff's motion to add new class representatives for the employee class and therefore the employee class remains without a plaintiff class representative. On March 18, 2015, the court denied Swift's two motions for summary judgment 1) to dismiss any claims related to the employee class since there is no class representative; and 2) to dismiss plaintiff's claim of breach of a duty of good faith and fair dealing. Swift filed a motion to decertify the entire class which remains pending before the court. The matter is scheduled for trial in October 2015. The Company intends to continue to pursue all available appellate relief supported by the record, which the Company believes demonstrates that the class is improperly certified and, further, that the claims raised have no merit. The Company retains all of its defenses against liability and damages. The final disposition of this case and the impact of such final disposition cannot be determined at this time.

Ninth Circuit Owner-operator Misclassification Class Action Litigation

On December 22, 2009, a class action lawsuit was filed against Swift Transportation and IEL: Virginia VanDusen, John Doe 1 and Joseph Sheer, individually and on behalf of all other similarly situated persons v. Swift Transportation Co., Inc., Interstate Equipment Leasing, Inc., Jerry Moyes, and Chad Killebrew, Case No. 9-CIV-10376 filed in the United States District Court for the Southern District of New York ("the Sheer Complaint"). The putative class involves owner-operators alleging that Swift Transportation misclassified owner-operators as independent contractors in violation of the federal Fair Labor Standards Act ("FLSA"), and various New York and California state laws and that such owner-operators should be considered employees. The lawsuit also raises certain related issues with respect to the lease agreements that certain owner-operators have entered into with IEL. At present, in addition to the named plaintiffs, approximately 200 other current or former owner-operators have joined this lawsuit. Upon Swift’s motion, the matter has been transferred from the United States District Court for the Southern District of New York to the United States District Court in Arizona. On May 10, 2010, the plaintiffs filed a motion to conditionally certify an FLSA collective action and authorize notice to the potential class members. On September 23, 2010, plaintiffs filed a motion for a preliminary injunction seeking to enjoin Swift and IEL from collecting payments from plaintiffs who are in default under their lease agreements and related relief. On September 30, 2010, the District Court granted Swift’s motion to compel arbitration and ordered that the class action be stayed pending the outcome of arbitration. The District Court further denied plaintiff’s motion for preliminary injunction and motion for conditional class certification. The District Court also denied plaintiff’s request to arbitrate the matter as a class.

The plaintiff filed a petition for a writ of mandamus to the Ninth Circuit Court of Appeals asking that the District Court’s September 30, 2010 order be vacated. On July 27, 2011, the Ninth Circuit Court of Appeals denied the plaintiff’s petition for writ of mandamus and thereafter the District Court denied plaintiff’s motion for reconsideration and certified its September 30, 2010 order. The plaintiffs

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filed an interlocutory appeal to the Ninth Circuit Court of Appeals to overturn the District Court’s September 30, 2010 order to compel arbitration, alleging that the agreement to arbitrate is exempt from arbitration under Section 1 of the Federal Arbitration Act (“FAA”) because the class of plaintiffs allegedly consists of employees exempt from arbitration agreements. On November 6, 2013, the Ninth Circuit Court of Appeals reversed and remanded, stating its prior published decision, “expressly held that a district court must determine whether an agreement for arbitration is exempt from arbitration under Section 1 of the FAA as a threshold matter." As a consequence of this determination by the ninth Circuit Court of Appeals being different from a decision of the Eighth Circuit Court of Appeals on a similar issue, on February 4, 2014, the Company filed a petition for writ of certiorari to the United States Supreme Court to address whether the district court or arbitrator should determine whether the contract is an employment contract exempt from Section 1 of the Federal Arbitration Act. On June 16, 2014, the United States Supreme Court denied the Company’s petition for writ of certiorari. The matter remains pending in the District Court and is currently in discovery. The Company intends to vigorously defend against any proceedings. The final disposition of this case and the impact of such final disposition cannot be determined at this time.

California Wage, Meal and Rest Employee Class Actions

On March 22, 2010, a class action lawsuit was filed by John Burnell, individually and on behalf of all other similarly situated persons against Swift Transportation: John Burnell and all others similarly situated v. Swift Transportation Co., Inc., Case No. CIVDS 1004377 filed in the Superior Court of the State of California, for the County of San Bernardino ("the Burnell Complaint"). On September 3, 2010, upon motion by Swift, the matter was removed to the United States District Court for the Central District of California, Case No. EDCV10-809-VAP. The putative class includes drivers who worked for Swift during the four years preceding the date of filing alleging that Swift failed to pay the California minimum wage, failed to provide proper meal and rest periods and failed to timely pay wages upon separation from employment. The Burnell Complaint was subject to a stay of proceedings pending determination of similar issues in a case unrelated to Swift, Brinker v. Hohnbaum, which was then pending before the California Supreme Court. A ruling was entered in the Brinker matter and in August 2012 the stay in the Burnell Complaint was lifted. On April 9, 2013 the Company filed a motion for judgment on the pleadings requesting dismissal of plaintiff's claims related to alleged meal and rest break violations under the California Labor Code alleging that such claims are preempted by the Federal Aviation Administration Authorization Act. On May 29, 2013, the U.S. District Court for the Central District of California granted the Company's motion for judgment on the pleadings and dismissed plaintiff's claims that are based on alleged violations of meal and rest periods set forth in the California Labor Code. Plaintiff has appealed. Minimum wage claims (specifically that pay per-mile fails to compensate drivers for non-driving-related services), timeliness of such pay and the issue of class certification remain pending.

On April 5, 2012, the Company was served with an additional class action complaint alleging facts similar to those as set forth in the Burnell Complaint. This class action is James R. Rudsell, on behalf of himself and all others similarly situated v. Swift Transportation Co. of Arizona, LLC and Swift Transportation Company, Case No. CIVDS 1200255, in the Superior Court of California for the County of San Bernardino ("the Rudsell Complaint"). The Rudsell Complaint has been stayed pending a resolution in the Burnell Complaint.

The issue of class certification must first be resolved before the court will address the merits of the case, and the Company retains all of its defenses against liability and damages pending a determination of class certification. The Company intends to vigorously defend certification of the class in both matters, as well as the merits of these matters, should the classes be certified. The final disposition of both cases and the impact of such final dispositions of these cases cannot be determined at this time. There have been no significant developments to these cases since December 31, 2014.

California Wage and Hour Class Action

On September 25, 2014, a class action lawsuit was filed by Lawrence Peck on behalf of himself and all other similarly situated persons against Swift Transportation: Peck v. Swift Transportation Co. Arizona, LLC in the Superior Court of California, County of Riverside ("the Peck Complaint"). The putative class includes current and former non-exempt employee truck drivers who performed services in California within the four-year statutory period alleging that Swift failed to pay for all hours worked (specifically that pay-per-mile fails to compensate drivers for non-driving related services), failed to pay overtime, failed to properly reimburse work-related expenses, failed to timely pay wages and failed to provide accurate wage statements.

Peck is currently stayed, pending a resolution in the Burnell and Rudsell cases, based on the similarity of the Peck claims to the claims in those earlier filed cases. The final disposition of the case and the impact of such final disposition cannot be determined at this time.

Washington Overtime Class Action

On September 9, 2011, a class action lawsuit was filed by Troy Slack and several other drivers on behalf of themselves, and all similarly situated persons, against Swift Transportation: Troy Slack, et al v. Swift Transportation Co. of Arizona, LLC and Swift Transportation Corporation in the State Court of Washington, Pierce County ("the Slack Complaint"). The Slack Complaint was removed to federal court on October 12, 2011, case number 11-2-114380. The putative class includes all current and former Washington State-based employee drivers during the three-year statutory period prior to the filing of the lawsuit through to present

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and alleges that they were not paid minimum wage and overtime in accordance with Washington State law and that they suffered unlawful deductions from wages. On November 23, 2013, the court entered an order on plaintiffs' motion to certify the class. The court only certified the class as it pertains to "dedicated" drivers and did not certify any other class, including any class related to over the road drivers (“OTR Drivers”). The parties dispute the definition of "dedicated" as used by the court and a class notice has not yet been issued. The matter is now anticipated to move into discovery. The Company retains all of its defenses against liability and damages. The Company intends to vigorously defend the merits of these claims and to challenge certification. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.

Utah Collective and Individual Arbitration

On June 1, 2012, a collective and class action complaint was filed by Gabriel Cilluffo, Kevin Shire and Bryan Ratterree individually and on behalf of themselves and all similarly situated persons against Central Refrigerated Services, Inc., Central Leasing, Inc., Jon Isaacson, and Jerry Moyes: Gabriel Cilluffo, Kevin Shire and Bryan Ratterree individually and on behalf themselves and all similarly situated persons v. Central Refrigerated Services, Inc., Central Leasing, Inc., Jon Isaacson, and Jerry Moyes in the United States District Court for the Central District of California, Case No. ED CV 12-00886 ("the Cilluffo Complaint"). The putative class involves owner-operators alleging that Central misclassified owner-operators as independent contractors in violation of the FLSA, and that such owner-operators should be considered employees. The lawsuit also raises a claim of forced labor and state law contractual claims. On September 24, 2012, the California District Court ordered that the FLSA claim proceed to collective arbitration under the Utah Uniform Arbitration Act (“UUAA”) and not the FAA. The September 24, 2012 order directed the arbitrator to determine the validity of proceeding as a collective arbitration under the UUAA, and then if the arbitrator determines that such collective action is permitted, then the arbitrator is to consider the plaintiff’s FLSA claim. On November 8, 2012, the California District Court entered a clarification order clarifying that the plaintiff’s FLSA claim was to proceed to collective arbitration under the UUAA, but the plaintiff’s forced labor claim and state law contractual claims were to proceed as individual arbitrations for those plaintiffs seeking to pursue those specific claims. Central filed a motion for reconsideration and a motion for interlocutory appeal of the California District Court’s orders, both of which were denied and the claims are proceeding to collective and individual arbitration as originally ordered. On December 9, 2013, the arbitrator determined that the issue of misclassification as it relates to the FLSA will proceed as a collective arbitration; however, the plaintiffs forced labor claim and state law claims of contractual misrepresentation and breach of contract must proceed on an individual arbitration basis and not as a class. The matter is currently in discovery.

Central intends to vigorously defend collective arbitration in the Cilluffo Complaint, as well as the merits of the FLSA claim and any individual arbitration matters that are filed, and proceed on the forced labor and state contract law claims. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.

Environmental Notice

On April 17, 2009, the Company received a notice from the Lower Willamette Group ("LWG"), advising that there was a total of 250 potentially responsible parties ("PRPs"), with respect to alleged environmental contamination of the Lower Willamette River in Portland, Oregon designated as the Portland Harbor Superfund site ("the Site"), and that as a previous landowner at the Site, the Company was asked to join a group of 60 PRPs and proportionately contribute to (i) reimbursement of funds expended by LWG to investigate environmental contamination at the Site and (ii) remediation costs of the same, rather than be exposed to potential litigation. Although the Company does not believe it contributed any contaminants to the Site, the Company was at one time the owner of property at the Site and the Comprehensive Environmental Response, Compensation and Liability Act imposes a standard of strict liability on property owners with respect to environmental claims. Notwithstanding this standard of strict liability, management believes the Company's potential proportionate exposure to be minimal and not material. No formal complaint has been filed in this matter. The Company’s pollution liability insurer has been notified of this potential claim. Management does not believe the outcome of this matter is likely to have a material adverse effect on Swift. However, the final disposition of this matter and the impact of such final disposition cannot be determined at this time. There have been no significant developments pertaining to this matter since December 31, 2014.

Other Environmental

The Company's tractors and trailers are involved in motor vehicle accidents, experience damage, mechanical failures and cargo issues as an incidental part of its normal ordinary course of operations.  From time to time, these matters result in the discharge of diesel fuel, motor oil or other hazardous materials into the environment.  Depending on local regulations and who is determined to be at fault, the Company is sometimes responsible for the clean-up costs associated with these discharges.  As of March 31, 2015, the Company's estimate for its total legal liability for all such clean-up and remediation costs was approximately $0.4 million in the aggregate for all current and prior year claims. 

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Note 10 — Derivative Financial Instruments

The following table presents pre-tax losses from changes in fair value of the Company's interest rate swaps, included in earnings (in thousands):

	Three Months Ended March 31,
	2015		2014
Loss reclassified from AOCI into net income from cash flow hedges (effective portion)	$	1,848	$	1,314
Loss recognized in income from de-designated derivative contracts	945		339
Derivative interest expense	$	2,793	$	1,653

As of March 31, 2015, $2.1 million of deferred losses on derivatives in AOCI are expected to be reclassified to earnings within the next 12 months. There were no losses recognized in AOCI from the effective portion of cash flow hedges during the three months ended March 31, 2015 or 2014.

Losses on cash flow hedging, reclassified out of AOCI into the consolidated income statements were as follows (in thousands):

		Three Months Ended March 31,
	Reclassified to:	2015			2014
Interest rate swaps	Derivative interest expense	$	1,848		$	1,314
Income tax (benefit) expense	Income tax expense	(711		)	(506		)
	Net income	$	1,137		$	808

Activities related to AOCI net of tax, are presented in the consolidated statement of stockholders' equity, and primarily pertain to derivative financial instruments. The tax effects are presented in the consolidated statements of comprehensive income. Activities related to foreign currency transactions were immaterial for the three months ended March 31, 2015 and 2014.

Note 11 — Fair Value Measurement

The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015				December 31, 2014
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Restricted investments	$	18,286	$	18,290	$	24,510	$	24,502
Financial Liabilities:
2014 Agreement: Term Loan A, due June 2019	494,375		494,375		500,000		500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115		395,858		396,080		390,436
Securitization of accounts receivable	294,000		294,000		334,000		334,000

The carrying amounts shown in the table (other than restricted investments and securitization of accounts receivable) are included in the consolidated balance sheets in "Current portion of long-term debt" and "Long-term debt, less current portion."

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Recurring Fair Value Measurements

As of March 31, 2015 and December 31, 2014, interest rate swaps were the only major category of liabilities included in the Company's consolidated balance sheets at estimated fair value that were measured on a recurring basis. The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of these instruments (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
As of March 31, 2015
Interest rate swaps	$	4,233	$	—	$	4,233	$	—
As of December 31, 2014
Interest rate swaps	$	6,109	$	—	$	6,109	$	—

As of March 31, 2015 and December 31, 2014, there were no assets included in the Company's consolidated balance sheets at estimated fair value that were measured on a recurring basis.

Nonrecurring Fair Value Measurements

The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs	Level 2 Inputs	Level 3 Inputs		Total Gains (Losses)
As of March 31, 2015
Note receivable	$	—			$	—	$	(1,480	)
As of December 31, 2014
Other assets	$	—			$	—	$	(2,308	)

In September 2013, the Company agreed to advance up to $2.3 million, pursuant to an unsecured promissory note, to an independent fleet contractor that transported freight on Swift's behalf. In March 2015, management became aware that the independent contractor violated various covenants outlined in the unsecured promissory note, which created an event of default that made the principal and accrued interest immediately due and payable. As a result of this event of default, as well as an overall decline in the independent contractor's financial condition, management re-evaluated the fair value of the unsecured promissory note. As of March 31, 2015, management determined that the remaining balance due from the independent contractor to the Company was not collectible, which resulted in a $1.5 million pre-tax adjustment that was recorded in "Non-cash impairments of non-operating assets" in the Company's consolidated income statements.

Fair value of assets measured on a nonrecurring basis as of December 31, 2014, represent certain operations software that was replaced, and for which the carrying value was determined to be fully impaired during the three months ended September 30, 2014.

Note 12 — Earnings per Share

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding (in thousands):

	Three Months Ended March 31,
	2015	2014
Basic weighted average common shares outstanding	142,199	140,981
Dilutive effect of stock options	1,756	2,037
Diluted weighted average common shares outstanding	143,955	143,018

Option exercise prices were greater than the average market price of the common shares during the three months ended March 31, 2015 and 2014. As such, there were no anti-dilutive shares to be excluded from the calculation of diluted earnings per share.

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Note 13 — Income Taxes

The effective tax rate for the three months ended March 31, 2015 and March 31, 2014 was 38.5%.

The Company recognizes potential accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. Accrued interest and penalties as of March 31, 2015 were approximately $1.3 million. To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be reduced and reflected as a reduction of the overall income tax provision. The Company does not anticipate a decrease of unrecognized tax benefits during the next twelve months.

Certain of the Company’s subsidiaries are currently under examination by the Internal Revenue Service and various state jurisdictions for tax years ranging from 2010 through 2013. At the completion of these examinations, management does not expect any adjustments that would have a material impact on the Company’s effective tax rate. Tax years 2010 through 2013 remain subject to examination.

Note 14 — Segments and Geography

Segment Information

The Company’s four reportable operating segments are Truckload, Dedicated, Central Refrigerated and Intermodal.

Truckload— The Truckload segment consists of one-way movements over irregular routes throughout the United States, Mexico, and Canada. This service utilizes both company and owner-operator tractors with dry van, flatbed, and other specialized trailing equipment.

Dedicated— Through the Dedicated segment, the Company devotes use of equipment to specific customers and offers tailored solutions under long-term contracts. This dedicated segment utilizes refrigerated, dry van, flatbed and other specialized trailing equipment.

Central Refrigerated— This segment represents the core operations of Central and primarily consists of shipments for customers that require temperature-controlled trailers. These shipments include one-way movements over irregular routes, as well as dedicated truck operations.

Intermodal— The Intermodal segment includes revenue generated by moving freight over the rail in the Company's containers and other trailing equipment, combined with revenue for drayage to transport loads between the railheads and customer locations.

Non-reportable Segment— The other non-reportable segment includes the Company's logistics and freight brokerage services, as well as support services provided by its subsidiaries to customers and owner-operators, including repair and maintenance shop services, equipment leasing, and insurance. Intangible amortization related to the 2007 going-private transaction is also included in this other non-reportable segment.

Other Intersegment Transactions—Certain operating segments provide transportation and related services for other affiliates outside their reportable segment. Revenues for such services are based on negotiated rates, which we believe approximate fair value, and are reflected as revenues of the billing segment. These rates are adjusted from time to time based on market conditions. Such intersegment revenues and expenses are eliminated in our consolidated results.

Set forth in the tables below is certain financial information with respect to the Company’s reportable segments (in thousands):

	Operating Revenue
	Three Months Ended March 31,
	2015			2014
Truckload	$	538,341		$	553,057
Dedicated	217,775			193,653
Central Refrigerated	95,568			106,763
Intermodal	90,354			91,313
Subtotal	942,038			944,786
Non-reportable segment	91,622			75,666
Intersegment eliminations	(18,516		)	(12,006		)
Consolidated operating revenue	$	1,015,144		$	1,008,446

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) — CONTINUED

	Operating Income (Loss)
	Three Months Ended March 31,
	2015			2014
Truckload	$	56,854		$	31,907
Dedicated	14,345			11,530
Central Refrigerated	4,799			2,420
Intermodal	(1,243		)	(926		)
Subtotal	74,755			44,931
Non-reportable segment	245			1,239
Consolidated operating income	$	75,000		$	46,170

	Depreciation and Amortization Expense
	Three Months Ended March 31,
	2015		2014
Truckload	$	28,610	$	30,245
Dedicated	14,273		12,405
Central Refrigerated	3,294		3,106
Intermodal	3,252		2,368
Subtotal	49,429		48,124
Non-reportable segment	7,498		8,051
Consolidated depreciation and amortization expense	$	56,927	$	56,175

Geographical Information

In aggregate, operating revenue from the Company's foreign operations was less than 5.0% of consolidated operating revenue for the three months ended March 31, 2015 and 2014. Additionally, long-lived assets on the balance sheets of the Company's foreign subsidiaries were less than 5.0% of consolidated Total assets as of March 31, 2015 and December 31, 2014.

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ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(UNAUDITED)

Cautionary Note Regarding Forward-looking Statements

This report contains statements that may constitute forward-looking statements, which are based on information currently available, usually defined by words such as "anticipates," "believes," "estimates," "plans," "projects," "expects," "hopes," "intends," "will," "could," "should," "may," or similar expressions which speak only as of the date the statement was made. Such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements include, but are not limited to, statements concerning:

• trends, management's beliefs, and expectations relating to our operations, Revenue xFSR, expenses, other revenue, pricing, our effective tax rate, profitability and related metrics;

• impact and planned timing of adopting recently issued accounting pronouncements on future periods;

• our expectation of increasing driver wages and hiring expenses;

• the outcome of pending claims, litigation and actions in respect thereof;

• our intentions concerning the potential use of derivative financial instruments to hedge fuel price increases;

• the timing and amount of future acquisitions of revenue equipment and other capital expenditures, as well as the use and availability of cash, cash flows from operations, leases and debt to finance such acquisitions;

• the potential impact of inflation, seasonality and severe weather conditions on our results of operations;

• the impact in 2015 of the discontinuation of a large dedicated account within the Central Refrigerated segment; and

• our ability to finance our cash needs from operations for the next twelve months.

Such forward-looking statements are inherently uncertain, and are based upon the current beliefs, assumptions and expectations of Company management and current market conditions, which are subject to significant risks and uncertainties, as set forth in the Risk Factors section of our Annual Report on Form 10-K for the year ended December 31, 2014. As to the Company's business and financial performance, the following factors, among others, could cause actual results to materially differ from those in forward-looking statements.

• economic conditions, including future recessionary economic cycles and downturns in customers’ business cycles, particularly in market segments and industries in which we have a significant concentration of customers;

• increasing competition from trucking, rail, intermodal, and brokerage competitors;

• our ability to execute or integrate any future acquisitions successfully;

• increases in driver compensation to the extent not offset by increases in freight rates and difficulties in driver recruitment and retention;

• our ability to attract and maintain relationships with owner-operators;

• our ability to retain or replace key personnel;

• our dependence on third parties for intermodal and brokerage business;

• potential failure in computer or communications systems;

• seasonal factors such as severe weather conditions that increase operating costs;

• the regulatory environment in which we operate, including existing regulations and changes in existing regulations, or violations by us of existing or future regulations;

• the possible re-classification of our owner-operators as employees;

• changes in rules or legislation by the NLRB or Congress and/or union organizing efforts;

• our CSA safety rating;

• government regulation with respect to our captive insurance companies;

• uncertainties and risks associated with our operations in Mexico;

• a significant reduction in, or termination of, our trucking services by a key customer;

• our significant ongoing capital requirements;

• the amount and velocity of changes in fuel prices and our ability to recover fuel prices through our fuel surcharge program;

• volatility in the price or availability of fuel;

• increases in new equipment prices or replacement costs;

• our level of indebtedness and our ability to service our outstanding indebtedness, including compliance with our indebtedness covenants, and the impact such indebtedness may have on the way we operate our business;

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(UNAUDITED) — CONTINUED

• restrictions contained in our debt agreements;

• adverse impacts of insuring risk through our captive insurance companies, including our need to provide restricted cash and similar collateral for anticipated losses;

• potential volatility or decrease in the amount of earnings as a result of our claims exposure through our captive insurance companies;

• the potential impact of the significant number of shares of our common stock that is outstanding;

• goodwill impairment;

• our intention to not pay dividends;

• conflicts of interest or potential litigation that may arise from other businesses owned by Jerry Moyes, including pledges of Swift stock and guarantees related to other businesses by Jerry Moyes;

• the significant amount of our stock and related control over the Company by Jerry Moyes;

• related-party transactions between the Company and Jerry Moyes; and

• that our acquisition of Central may be challenged by our stockholders.

Important factors, in addition to those listed above and in our filings with the SEC, could impact us financially. As a result of these and other factors, actual results may differ from those set forth in the forward-looking statements, and the prices of the Company's securities may dramatically fluctuate. The Company makes no commitment, and disclaims any duty, to update or revise any forward-looking statements to reflect future events, new information or changes in these expectations.

Reference to Glossary of Terms

Certain acronyms and terms used throughout this Quarterly Report on Form 10-Q are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document.

Reference to Annual Report on Form 10-K

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the consolidated financial statements and footnotes included in this Quarterly Report on Form 10-Q, as well as the consolidated financial statements and footnotes included in our Annual Report on Form 10-K for the year ended December 31, 2014.

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Executive Summary

Company Overview — Swift is a multi-faceted transportation services company, operating the largest fleet of truckload equipment in North America from over 40 terminals near key freight centers and traffic lanes. We principally operate in short- to medium-haul traffic lanes around our terminals and dedicated customer locations. We concentrate on this length of haul because the majority of domestic truckload freight (as measured by revenue) moves in these lanes and our extensive terminal network affords us marketing, equipment control, supply chain, customer service, and driver retention advantages in local markets. Since our average length of haul is relatively short, it helps reduce competition from railroads and trucking companies that lack a regional presence.

As of March 31, 2015, our fleet of revenue equipment included 19,535 tractors (comprised of 14,680 company tractors and 4,855 owner-operator tractors), 61,780 trailers and 9,150 intermodal containers. Our four reportable segments are Truckload, Dedicated, Central Refrigerated and Intermodal. Our extensive suite of service offerings (which includes line-haul services, dedicated customer contracts, temperature-controlled units, intermodal freight solutions, cross-border United States/Mexico and United States/Canada freight, flatbed hauling, freight brokerage and logistics, and others) provides our customers with the opportunity to "one-stop-shop" for their truckload transportation needs.

Revenue — We primarily generate revenue by transporting freight for our customers, generally at a predetermined rate per mile. We supplement this revenue by charging for fuel surcharges, stop-off pay, loading and unloading activities, tractor and trailer detention, and other ancillary services. The main factors that affect our revenue from transporting freight are the rate per mile we receive from our customers and loaded miles. The main factors that affect fuel surcharge revenue are the price of diesel fuel and the number of loaded miles. Fuel surcharges are billed on a lagging basis, meaning that we typically bill customers in the current week based on a previous week's applicable index. Therefore, in times of increasing fuel prices, we do not recover as much as we are currently paying for fuel. In periods of declining prices, the opposite is true.

Revenue in our non-reportable segment is generated by our non-asset-based freight brokerage and logistics management service, tractor leasing revenue from our financing subsidiaries, premium revenue from our captive insurance companies, and revenue from third parties serviced by our repair and maintenance shops. Main factors affecting revenue in our non-reportable segment are demand for brokerage and logistics services and number of equipment leases to our owner-operators by our financing subsidiaries.

Expenses — Our most significant expenses vary with miles traveled and include fuel, driver-related expenses (such as wages and benefits) and services purchased from owner-operators and other transportation providers (such as railroads, drayage providers, and other trucking companies). Maintenance and tire expenses and cost of insurance and claims generally vary with the miles we travel, but also have a controllable component based on safety improvements, fleet age, efficiency, and other factors. Our primary fixed costs are depreciation and lease expense for revenue equipment and terminals, interest expense, and non-driver compensation.

Changes in deadhead miles percentage generally have the largest proportionate effect on our profitability because we still bear all of the expenses for each deadhead mile, but do not earn any revenue to offset those expenses. Changes in rate per mile have the next largest proportionate effect on profitability because incremental improvements in rate per mile are not offset by any additional expenses. Changes in loaded miles generally have a smaller effect on profitability because variable expenses fluctuate with changes in miles. However, changes in mileage are affected by driver satisfaction and network efficiency, which indirectly affect expenses.

Financial Overview

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands, except per share data)
Operating revenue	$	1,015,144		$	1,008,446
Revenue xFSR	$	894,864		$	816,999
Net income	$	37,840		$	12,305
Diluted earnings per common share	$	0.26		$	0.09
Operating Ratio	92.6		%	95.4		%
Non-GAAP financial data:
Adjusted Operating Ratio (1)	91.2		%	93.9		%
Adjusted EBITDA (1)	$	138,219		$	108,474
Adjusted EPS (1)	$	0.29		$	0.12

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____________

(1) Adjusted EBITDA, Adjusted Operating Ratio and Adjusted EPS are non-GAAP financial measures. These non-GAAP financial measures should not be considered alternatives, or superior, to GAAP financial measures. However, management believes that presentation of these non-GAAP financial measures provides useful information to investors regarding the Company's results of operations. Adjusted EBITDA, Adjusted Operating Ratio and Adjusted EPS are reconciled to the most directly comparable GAAP financial measures under "Non-GAAP Financial Measures," below.

Factors Affecting Comparability Between Periods

Results of Operations for the Three Months Ended March 31, 2015, Compared to the Three Months Ended March 31, 2014

Net income for the three months ended March 31, 2015 was $37.8 million, as compared to $12.3 million for the corresponding period in 2014. The following factors affected comparability between the three months ended March 31, 2015 and the three months ended March 31, 2014:

• $12.8 million decrease in interest expense, driven by the call of the Senior Notes in November 2014, lower debt balances and more favorable interest rates and terms from the replacement of the 2013 Agreement with the 2014 Agreement.

• $1.5 million pre-tax impairment of a non-operating note receivable, during the three months ended March 31, 2015. The note was due to the Company from an independent fleet contractor, transporting freight on behalf of Swift.

• $2.9 million in loss on debt extinguishment resulting from the repurchase of our Senior Notes during the three months ended March 31, 2014.

Non-GAAP Financial Measures

The terms "Adjusted EBITDA," "Adjusted Operating Ratio," and "Adjusted EPS," as we define them, are not presented in accordance with GAAP. These financial measures supplement our GAAP results in evaluating certain aspects of our business. We believe that using these measures improves comparability in analyzing our performance because they remove the impact of items from our operating results that, in our opinion, do not reflect our core operating performance. Management and the board of directors focus on Adjusted EBITDA, Adjusted Operating Ratio and Adjusted EPS as key measures of our performance, all of which are reconciled to the most comparable GAAP financial measures and further discussed below. We believe our presentation of these non-GAAP financial measures is useful because it provides investors and securities analysts the same information that we use internally for purposes of assessing our core operating performance and compliance with debt covenants.

Adjusted EBITDA, Adjusted Operating Ratio and Adjusted EPS are not substitutes for their comparable GAAP financial measures, such as net income, cash flows from operating activities, operating margin, or other measures prescribed by GAAP. There are limitations to using non-GAAP financial measures. Although we believe that they improve comparability in analyzing our period to period performance, they could limit comparability to other companies in our industry if those companies define these measures differently. Because of these limitations, our non-GAAP financial measures should not be considered measures of income generated by our business or discretionary cash available to us to invest in the growth of our business. Management compensates for these limitations by primarily relying on GAAP results and using non-GAAP financial measures on a supplemental basis.

Adjusted EBITDA — Our definition of the non-GAAP measure, Adjusted EBITDA, starts with (a) net income (loss), the most comparable GAAP measure. We add the following items back to (a) to arrive at Adjusted EBITDA:

(i) depreciation and amortization,

(ii) interest and derivative interest expense, including fees and charges associated with indebtedness, net of interest income,

(iii) income taxes,

(iv) non-cash equity compensation expense,

(v) non-cash impairments,

(vi) other special non-cash items, and

(vii) excludable transaction costs.

We believe that Adjusted EBITDA is a relevant measure for estimating the cash generated by our operations that would be available to cover capital expenditures, taxes, interest and other investments and that it enhances an investor’s understanding of our financial performance. We use Adjusted EBITDA for business planning purposes and in measuring our performance relative to that of our competitors. Our method of computing Adjusted EBITDA is consistent with that used in our debt covenants, specifically our leverage ratio, and is also routinely reviewed by management for that purpose.

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The following table is a GAAP to non-GAAP reconciliation for consolidated Adjusted EBITDA:

	Three Months Ended March 31,
	2015			2014
	(In thousands)
Net income	$	37,840		$	12,305
Adjusted for:
Depreciation and amortization of property and equipment	56,927			56,175
Amortization of intangibles	4,204			4,204
Interest expense	10,388			23,225
Derivative interest expense	2,793			1,653
Interest income	(587		)	(766		)
Income tax expense	23,691			7,704
EBITDA	135,256			104,500
Non-cash equity compensation (2)	1,483			1,061
Loss on debt extinguishment (3)	—			2,913
Non-cash impairments of non-operating assets (4)	1,480			—
Adjusted EBITDA (1)	$	138,219		$	108,474

____________

(1) Our method of computing Adjusted EBITDA is consistent with that used in our debt covenants, specifically our leverage ratio, and is also routinely reviewed by management for that purpose.

(2) Non-cash equity compensation expense is presented on a pre-tax basis. In accordance with the terms of the 2014 Agreement, this expense is added back in the calculation of Adjusted EBITDA for covenant compliance purposes.

(3) Refer to the "Loss on Debt Extinguishment" discussion under "Results of Operations — Consolidated Operating and Other Expenses," below.

(4) Refer to "Non-cash Impairments of Non-operating Assets" discussion under "Results of Operations - Consolidated Operating and Other Expenses," below.

Adjusted Operating Ratio — Our definition of the non-GAAP measure, Adjusted Operating Ratio, starts with (a) operating expense and (b) operating revenue, which are GAAP financial measures. We subtract the following items from (a) to arrive at (c) adjusted operating expense:

(i) fuel surcharge revenue,

(ii) amortization of the intangibles from our 2007 going-private transaction,

(iii) non-cash operating impairment charges,

(iv) other special non-cash items, and

(v) excludable transaction costs.

We then subtract fuel surcharge revenue from (b) to arrive at (d) Revenue xFSR. Adjusted Operating Ratio is equal to (c) adjusted operating expense as a percentage of (d) Revenue xFSR.

We net fuel surcharge revenue against fuel expense in the calculation of our Adjusted Operating Ratio, thereby excluding fuel surcharge revenue from operating revenue in the denominator. Because fuel surcharge revenue is so volatile, we believe excluding it provides for more transparency and comparability. Additionally, we believe that comparability of our performance is improved by excluding impairments, non-comparable intangibles from the 2007 Transactions and other special items.

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The following table is a GAAP to non-GAAP reconciliation for consolidated Adjusted Operating Ratio:

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	1,015,144		$	1,008,446
Less: Fuel surcharge revenue	120,280			191,447
Revenue xFSR	894,864			816,999
Operating expense	940,144			962,276
Adjusted for:
Fuel surcharge revenue	(120,280		)	(191,447		)
Amortization of certain intangibles (1)	(3,912		)	(3,912		)
Adjusted operating expense	815,952			766,917
Adjusted operating income	$	78,912		$	50,082
Operating Ratio	92.6		%	95.4		%
Adjusted Operating Ratio	91.2		%	93.9		%

____________

(1) "Amortization of certain intangibles" specifically reflects the non-cash amortization expense relating to certain intangible assets identified in the 2007 Transactions through which Swift Corporation acquired Swift Transportation Co.

Adjusted EPS — Our definition of the non-GAAP measure, Adjusted EPS, starts with (a) income (loss) before income taxes, the most comparable GAAP measure. We add the following items back to (a) to arrive at (b) adjusted income (loss) before income taxes:

(i) amortization of the intangibles from the 2007 Transactions,

(ii) non-cash impairments,

(iii) other special non-cash items,

(iv) excludable transaction costs,

(v) mark-to-market adjustments on our interest rate swaps, recognized in the income statement, and

(vi) amortization of previous losses recorded in AOCI related to the interest rate swaps we terminated upon our IPO and refinancing transactions in December 2010.

We subtract income taxes, at the GAAP effective tax rate, from (b) to arrive at (c) adjusted earnings. Adjusted EPS is equal to (c) divided by weighted average diluted shares outstanding. Since the numbers reflected in the table below are calculated on a per share basis, they may not foot due to rounding.

We believe that excluding the impact of derivatives provides for more transparency and comparability since these transactions have historically been volatile. Additionally, we believe that comparability of our performance is improved by excluding impairments that are unrelated to our core operations, as well as intangibles from the 2007 Transactions and other special items that are non-comparable in nature.

The following table is a GAAP to non-GAAP reconciliation for consolidated Adjusted EPS:

	Three Months Ended March 31,
	2015		2014
Diluted earnings per share	$	0.26	$	0.09
Adjusted for:
Income tax expense	0.16		0.05
Income before income taxes	0.43		0.14
Non-cash impairments of non-operating assets (2)	0.01		—
Loss on debt extinguishment (3)	—		0.02
Amortization of certain intangibles (4)	0.03		0.03
Adjusted income before income taxes	0.46		0.19
Provision for income tax expense at effective rate	0.18		0.07
Adjusted EPS (1)	$	0.29	$	0.12

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____________

(1) In calculating diluted shares outstanding for the purposes of Adjusted EPS, the dilutive effect of outstanding stock options is only included for the period following our IPO when a market price was available to assess the dilutive effect of such options.

(2) Refer to footnote (4) to the Adjusted EBITDA reconciliation for a description of "Non-cash impairments of non-operating assets."

(3) Refer to the "Loss on Debt Extinguishment" discussion under "Results of Operations — Consolidated Operating and Other Expenses," below.

(4) Refer to footnote (1) to the Adjusted Operating Ratio reconciliation for a description of items in "Amortization of certain intangibles."

Results of Operations — Segment Review

We operate four reportable segments: Truckload, Dedicated, Central Refrigerated and Intermodal. The descriptions of the operations of these reportable segments are described in Note 14 to the consolidated financial statements, included in Part I, Item 1 of this Quarterly Report on Form 10-Q.

Consolidating tables for operating revenue and operating income are as follows:

	Three Months Ended March 31,
	2015			2014
	(In thousands)
Operating revenue:
Truckload	$	538,341		$	553,057
Dedicated	217,775			193,653
Central Refrigerated	95,568			106,763
Intermodal	90,354			91,313
Subtotal	942,038			944,786
Non-reportable segment	91,622			75,666
Intersegment eliminations	(18,516		)	(12,006		)
Operating revenue	$	1,015,144		$	1,008,446

	Three Months Ended March 31,
	2015			2014
	(In thousands)
Operating income (loss):
Truckload	$	56,854		$	31,907
Dedicated	14,345			11,530
Central Refrigerated	4,799			2,420
Intermodal	(1,243		)	(926		)
Subtotal	74,755			44,931
Non-reportable segment	245			1,239
Operating income	$	75,000		$	46,170

Our chief operating decision makers monitor the GAAP results of our reporting segments, as supplemented by certain non-GAAP information. Refer to "Non-GAAP Financial Measures" above for more details. Additionally, we use a number of primary indicators to monitor our revenue and expense performance and efficiency.

Weekly Revenue xFSR per Tractor(monitored monthly) — This is our primary measure of productivity for our Truckload, Dedicated and Central Refrigerated segments. Weekly Revenue xFSR per tractor is affected by the following factors, which are typically monitored daily:

• loaded miles (miles driven when hauling freight);

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• fleet size (because available loads are spread over available tractors);

• rates received for our services; and

• network balance (number of loads accepted, compared to available trucks, by market).

We strive to increase our revenue per tractor by improving freight rates with customers, hauling more loads with existing equipment, effectively moving freight and managing balance within our network, maintaining our tractors, and recruiting and retaining drivers and owner-operators.

Deadhead Miles Percentage (monitored daily) — This is calculated by dividing the number of unpaid miles by the total number of miles driven. We monitor deadhead miles percentage in Truckload and Central Refrigerated, as we strive to reduce our number of deadhead miles within these segments. By balancing our freight flows and planning consecutive loads with shorter distances between the drop-off and pick-up locations, we are able to reduce the percentage of deadhead miles driven to allow for more revenue-generating miles during our drivers’ hours-of-service. This also enables us to reduce wage, fuel and other costs associated with deadhead miles.

Average Operational Truck Count (monitored daily) — We use this measure for all of our reportable segments. It includes tractors driven by company drivers as well as owner-operator units. This measure changes based on our ability to adjust our fleet size in response to changes in demand.

Adjusted Operating Ratio (monitored monthly) — We consider this ratio an important measure of our operating profitability for each of our reportable segments. We define and reconcile Adjusted Operating Ratio under "Non-GAAP Financial Measures," above. GAAP Operating Ratio is operating expenses as a percentage of revenue, or the inverse of operating margin, and produces an indication of operating efficiency. It is widely used in our industry as an assessment of management’s effectiveness in controlling all categories of operating expenses.

Load Count and Average Container Count (monitored daily) — Within Intermodal, we monitor load count and average container count. These metrics allow us to measure our utilization of our container fleet.

Truckload Segment

	Three Months Ended March 31,
	2015			2014
	(Dollars and miles in thousands,  except per tractor amounts)
Operating revenue	$	538,341		$	553,057
Operating income	$	56,854		$	31,907
Operating Ratio	89.4		%	94.2		%
Adjusted Operating Ratio	87.9		%	92.8		%
Weekly Revenue xFSR per tractor	$	3,461		$	3,225
Total loaded miles	254,926			254,426
Deadhead miles percentage	11.8		%	11.7		%
Average operational truck count:
Company	7,334			7,151
Owner-Operator	3,201			3,484
Total	10,535			10,635

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The following table is a GAAP to non-GAAP reconciliation for the Truckload segment's Adjusted Operating Ratio:

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	538,341		$	553,057
Less: Fuel surcharge revenue	69,561			111,648
Revenue xFSR	468,780			441,409
Operating expense	481,487			521,150
Adjusted for: Fuel surcharge revenue	(69,561		)	(111,648		)
Adjusted operating expense	411,926			409,502
Adjusted operating income	$	56,854		$	31,907
Adjusted Operating Ratio	87.9		%	92.8		%

Truckload Revenue — Truckload operating revenue decreased by $14.7 million, or 2.7%, for the three months ended March 31, 2015, as compared to the same period in 2014. However, Truckload Revenue xFSR increased by $27.4 million, or 6.2%, for the three months ended March 31, 2015, as compared to the same period in 2014. The following factors were contributors (offsets) to the increase in Truckload Revenue xFSR:

• a 6.0% increase in Revenue xFSR per loaded mile, primarily driven by contractual rate increases and freight mix,

• a 1.1% increase in loaded miles per tractor per week, and

• a (0.9%) decrease in average operational truck count.

Truckload Operating Income — Truckload operating income increased by $24.9 million, or 78.2%, for the three months ended March 31, 2015, as compared to the same period in 2014. This resulted in an improvement in Adjusted Operating Ratio of 490 basis points, which was driven by contractual rate increases, improved utilization and lower fuel expense. Declining fuel prices, better fuel efficiency and reduced idle engine time contributed to the decrease in fuel expense for the three months ended March 31, 2015, as compared to the same period in 2014. Increases in driver wages and owner-operator contracted pay rates partially offset the improvement in Adjusted Operating Ratio.

Dedicated Segment

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands, except per tractor amounts)
Operating revenue	$	217,775		$	193,653
Operating income	$	14,345		$	11,530
Operating Ratio	93.4		%	94.0		%
Adjusted Operating Ratio	92.7		%	92.7		%
Weekly Revenue xFSR per tractor	$	3,204		$	3,173
Average operational truck count:
Company	3,882			3,161
Owner-Operator	879			691
Total	4,761			3,852

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The following table is a GAAP to non-GAAP reconciliation for the Dedicated segment's Adjusted Operating Ratio:

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	217,775		$	193,653
Less: Fuel surcharge revenue	21,642			36,534
Revenue xFSR	196,133			157,119
Operating expense	203,430			182,123
Adjusted for: Fuel surcharge revenue	(21,642		)	(36,534		)
Adjusted operating expense	181,788			145,589
Adjusted operating income	$	14,345		$	11,530
Adjusted Operating Ratio	92.7		%	92.7		%

Dedicated Revenue — Dedicated operating revenue increased by $24.1 million, or 12.5%, for the three months ended March 31, 2015, as compared to the same period in 2014. Dedicated Revenue xFSR increased by $39.0 million, or 24.8%, as compared to the same period in 2014. The increase in revenue was driven by various new customer contracts entered into over the last twelve months, which contributed to the 23.6% increase in average operational truck count. Additionally, weekly Revenue xFSR per tractor increased 1.0% to $3,204 due to improvements in pricing, utilization and deadhead.

Dedicated Operating Income — Dedicated operating income increased by$2.8 million, or 24.4%, for the three months ended March 31, 2015, as compared to the same period in 2014. Dedicated Adjusted Operating Ratio remained flat for the three months ended March 31, 2015, as compared to the same period in 2014. In addition to the favorable revenue impact of increases in average operational truck count and weekly Revenue xFSR per tractor, Adjusted Operating Ratio was favorably impacted by recently implemented safety initiatives that resulted in a slight reduction in our insurance and claims expense as a percentage of Revenue xFSR. These improvements were offset by increases in driver wages and owner-operator contracted pay rates. The fuel benefit from declining fuel prices had a limited impact on the Dedicated segment because many of our Dedicated contracts have unique fuel recovery characteristics that drive consistency in net fuel expense between periods, as compared to our over-the-road Truckload contracts.

Central Refrigerated Segment

	Three Months Ended March 31,
	2015			2014
	(Dollars and miles in thousands,  except per tractor amounts)
Operating revenue	$	95,568		$	106,763
Operating income	$	4,799		$	2,420
Operating Ratio	95.0		%	97.7		%
Adjusted Operating Ratio	94.1		%	97.1		%
Weekly Revenue xFSR per tractor	$	3,405		$	3,235
Total loaded miles	41,880			42,757
Deadhead miles percentage	14.0		%	14.0		%
Average operational truck count:
Company	1,263			1,057
Owner-Operator	589			955
Total	1,852			2,012

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The following table is a GAAP to non-GAAP reconciliation for the Central Refrigerated segment's Adjusted Operating Ratio:

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	95,568		$	106,763
Less: Fuel surcharge revenue	14,468			23,177
Revenue xFSR	81,100			83,586
Operating expense	90,769			104,343
Adjusted for: Fuel surcharge revenue	(14,468		)	(23,177		)
Adjusted operating expense	76,301			81,166
Adjusted operating income	$	4,799		$	2,420
Adjusted Operating Ratio	94.1		%	97.1		%

Central Refrigerated Revenue — Central Refrigerated operating revenue decreased by $11.2 million, or 10.5%, for the three months ended March 31, 2015, as compared to the same period in 2014. Revenue xFSR decreased by $2.5 million, or 3.0%, for the three months ended March 31, 2015, as compared to the same period in 2014, which was driven by an 8.0% reduction in average operational truck count, partially offset by a 5.3% increase in weekly Revenue xFSR per tractor. The increase in weekly Revenue xFSR per tractor was comprised of a 6.4% increase in loaded miles per tractor per week, partially offset by a 0.9% decrease in Revenue xFSR per loaded mile. Due to the unique requirements of a large Central Refrigerated dedicated customer account, as well as a lack of attaining profitability targets, we discontinued servicing the account, effective January 31, 2015. This account had a much lower average length of haul, higher deadhead and much higher Revenue xFSR per loaded mile, compared to other customer accounts. Excluding the impact of this dedicated account, Revenue xFSR per loaded mile increased by 4.7% for the three months ended March 31, 2015, as compared to the same period in 2014. Further impacts to these metrics are expected in the three months ended June 30, 2015.

Central Refrigerated Operating Income — Central Refrigerated operating income increased by $2.4 million, or 98.3%, for the three months ended March 31, 2015, as compared to the same period in 2014. Adjusted Operating Ratio improved by 300 basis points, which was driven by increased loaded miles per tractor per week and lower fuel prices, partially offset by increased insurance and claims expense.

Intermodal Segment

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	90,354		$	91,313
Operating loss	$	(1,243	)	$	(926	)
Operating Ratio	101.4		%	101.0		%
Adjusted Operating Ratio	101.6		%	101.3		%
Average operational truck count:
Company	481			378
Owner-Operator	87			73
Total	568			451
Load count	41,940			38,603
Average container count	9,150			8,717

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The following table is a GAAP to non-GAAP reconciliation for the Intermodal segment's Adjusted Operating Ratio:

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating revenue	$	90,354		$	91,313
Less: Fuel surcharge revenue	13,090			18,364
Revenue xFSR	77,264			72,949
Operating expense	91,597			92,239
Adjusted for: Fuel surcharge revenue	(13,090		)	(18,364		)
Adjusted operating expense	78,507			73,875
Adjusted operating loss	$	(1,243	)	$	(926	)
Adjusted Operating Ratio	101.6		%	101.3		%

Intermodal Revenue — Intermodal operating revenue decreased by $1.0 million, or 1.1%, for the three months ended March 31, 2015, as compared to the same period in 2014. Intermodal Revenue xFSR increased by $4.3 million, or 5.9%, for the three months ended March 31, 2015, as compared to the same period in 2014, driven by an 8.6% increase in load counts. COFC loads increased by 16.1%, while TOFC loads decreased by 59.0%, as we shifted away from the unprofitable refrigerated TOFC business. Revenue xFSR per load decreased 2.5% due to the mix shift to COFC from TOFC, as well as the slowdown of West Coast volumes resulting from the port labor disruptions. As such our East Coast volumes represented a larger portion of the total, reducing our average length of haul, which in turn reduced our average revenue per load.

Intermodal Operating Loss — Intermodal operating loss increased by $0.3 million, or 34.2%, for the three months ended March 31, 2015, as compared to the same period in 2014. Intermodal Adjusted Operating Ratio deteriorated by 30 basis points for the three months ended March 31, 2015, as compared to the same period in 2014. The West Coast port issues resulted in an increased usage of lower-priced spot business off of the West Coast, in an effort to keep our container network balanced. The impact of the West Coast port issues, relative to the Intermodal fleet size significantly impacted profitability in this segment, but was partially offset by a 10.6% improvement in container turns, as well as improvements in dray efficiency and safety trends.

Non-reportable Segment

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Operating revenue	$	91,622	$	75,666
Operating income	245		1,239

Non-reportable Segment Revenue — Operating revenue within our non-reportable segment increased by $16.0 million, or 21.1%, for the three months ended March 31, 2015, as compared to the same period in 2014. This was primarily driven by growth in our logistics business, increased services to owner-operators and an increase in intercompany leasing between our IEL subsidiary and our Truckload and Dedicated segments.

Non-reportable Segment Operating Income — Operating income within our non-reportable segment decreased by $1.0 million, or 80.2%, for the three months ended March 31, 2015, as compared to the same period in 2014.

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Results of Operations — Consolidated Operating and Other Expenses

Salaries, Wages and Employee Benefits

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Salaries, wages and employee benefits	$	261,654		$	229,366
% of Revenue xFSR	29.2		%	28.1		%
% of Operating revenue	25.8		%	22.7		%

Salaries, wages and employee benefits expense increased by $32.3 million, or 14.1%, for the three months ended March 31, 2015, as compared to the same period in 2014. The increase was primarily due to an 11.5% increase in total miles driven by company drivers, as well as driver pay rate increases. Specifically, on August 4, 2014, the Company implemented a significant increase in company driver wages per mile to improve its recruitment and retention of drivers.

Effective May 1, 2015, we enacted a material, targeted wage increase for company drivers. The compensation paid to our company drivers and other employees may increase further in future periods as the economy strengthens and other employment alternatives become more available.

Operating Supplies and Expenses

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Operating supplies and expenses	$	94,204		$	80,825
% of Revenue xFSR	10.5		%	9.9		%
% of Operating revenue	9.3		%	8.0		%

Operating supplies and expenses increased by $13.4 million, or 16.6%, for the three months ended March 31, 2015, as compared to the same period in 2014. As a percentage of Revenue xFSR, operating supplies and expenses increased by 60 basis points. The increase was primarily due to increases in recruiting and training expenses, equipment maintenance expenses and toll expenses.

We believe that the market for drivers has tightened. As a result, hiring expenses, including recruiting and advertising, which are included in operating supplies and expenses, have increased. We expect that these expenses will continue to increase from our focused efforts in attracting a sufficient amount of qualified drivers to operate our fleet.

Fuel Expense

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Fuel expense	$	106,907		$	156,022
% of Operating revenue	10.5		%	15.5		%

Fuel expense was decreased by $49.1 million, or 31.5%, for the three months ended March 31, 2015, as compared to the same period in 2014. The decrease was from a combination of declining fuel prices and improved fuel efficiency, partially offset by an increase in the number of miles driven by company drivers.

Purchased Transportation

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Purchased transportation expense	$	288,811		$	319,169
% of Operating revenue	28.5		%	31.6		%

Purchased transportation expense, which includes payments made to owner-operators, rail partners and other third parties for their services, decreased by $30.4 million, or 9.5%, for the three months ended March 31, 2015, as compared to the same period in

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2014. The decrease was primarily attributed to declining fuel prices, which reduced fuel reimbursements to our owner-operators and other third parties, as well as fewer miles driven by our owner-operators. This was partially offset by an increase in owner-operator contracted pay rates and growth in our logistics and intermodal businesses.

Effective May 1, 2015, we enacted a material, targeted increase in contracted pay rates for our owner-operators. Contracted pay rates for our owner-operators may increase further in future periods as the economy strengthens and other employment alternatives become more available.

Insurance and Claims

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Insurance and claims	$	44,307		$	42,448
% of Revenue xFSR	5.0		%	5.2		%
% of Operating revenue	4.4		%	4.2		%

Insurance and claims expense increased by $1.9 million, or 4.4%, for the three months ended March 31, 2015, as compared to the same period in 2014. As a percentage of Revenue xFSR, insurance and claims expense decreased by 20 basis points, but remained elevated, due to higher claims frequency trends related to severe weather conditions.

Rental Expense and Depreciation and Amortization of Property and Equipment

We believe it is appropriate to combine our rental expense with our depreciation and amortization of property and equipment for analytical purposes because the mix of our leased versus owned tractors varies from period to period.

	Three Months Ended March 31,
	2015			2014
	(Dollars in thousands)
Rental expense	$	61,975		$	51,719
Depreciation and amortization of property and equipment	56,927			56,175
Rental expense and depreciation and amortization of property and equipment	$	118,902		$	107,894
% of Revenue xFSR	13.3		%	13.2		%
% of Operating revenue	11.7		%	10.7		%

Rental expense and depreciation and amortization of property and equipment increased by $11.0 million, or 10.2%, for the three months ended March 31, 2015, as compared to the same period in 2014. The increase was primarily due to growth in the number of tractors and trailers in our fleet, higher replacement costs of revenue equipment, and an increase in the amount of leased equipment. As a percentage of Revenue xFSR, rental expense and depreciation and amortization of property and equipment remained relatively consistent with the same period in 2014.

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Consolidated revenue equipment was comprised of the following:

	As of
	March 31, 2015	December 31, 2014	March 31, 2014
Tractors:
Company:
Owned	6,476	6,083	6,464
Leased — capital leases	1,655	1,700	1,791
Leased — operating leases	6,549	6,099	5,017
Total company tractors	14,680	13,882	13,272
Owner-operator:
Financed through the Company	3,836	4,204	4,526
Other	1,019	750	572
Total owner-operator tractors	4,855	4,954	5,098
Total tractors	19,535	18,836	18,370
Trailers	61,780	61,652	58,074
Containers	9,150	9,150	8,717

Gain on Disposal of Property and Equipment

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Gain on disposal of property and equipment	$	3,932	$	3,159

Gain on disposal of property and equipment increased by $0.8 million, or 24.5%, for the three months ended March 31, 2015, as compared to the three months ended March 31, 2014.

Interest Expense

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Interest expense	$	10,388	$	23,225

Interest expense, which is comprised of debt interest expense and amortization of deferred financing costs and original issue discount, decreased by $12.8 million, or 55.3%, for the three months ended March 31, 2015, as compared to the same period in 2014. This was driven by the call of the Senior Notes in November 2014, lower debt balances, and more favorable interest rates and terms from the replacement of the 2013 Agreement with the 2014 Agreement.

Derivative Interest Expense

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Derivative interest expense	$	2,793	$	1,653

Derivative interest expense for the three months ended March 31, 2015 and 2014 reflects losses reclassified from AOCI into net income from the effective portion of cash flow hedges, as well as the income effect of mark-to-market adjustments and current settlements of interest rate swaps, which were de-designated in February 2013.

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Loss on Debt Extinguishment

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Loss on debt extinguishment	$	—	$	2,913

For the three months ended March 31, 2015, the Company did not extinguish any debt. In March 2014, the Company used cash on hand to repurchase $23.8 million in principal of its Senior Notes, priced at 110.70%, in an open market transaction. Including principal, premium and accrued interest, the Company paid $27.1 million. The repurchase of the Senior Notes resulted in a loss on debt extinguishment of $2.9 million, representing the write-off of the unamortized original issue discount.

Non-cash Impairments of Non-operating Assets

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Non-cash impairments of non-operating assets	$	1,480	$	—

In September 2013, the Company agreed to advance up to $2.3 million, pursuant to an unsecured promissory note, to an independent fleet contractor that transported freight on Swift's behalf. In March 2015, management became aware that the independent contractor violated various covenants outlined in the unsecured promissory note, which created an event of default that made the principal and accrued interest immediately due and payable. As a result of this event of default, as well as an overall decline in the independent contractor's financial condition, management re-evaluated the fair value of the unsecured promissory note. As of March 31, 2015, management determined that the remaining balance due from the independent contractor to the Company was not collectible, which resulted in a $1.5 million pre-tax adjustment that was recorded in "Non-cash impairments of non-operating assets" in the Company's consolidated income statements.

Income Tax Expense

	Three Months Ended March 31,
	2015		2014
	(In thousands)
Income tax expense	$	23,691	$	7,704

The effective tax rate for the three months ended March 31, 2015 and March 31, 2014 was 38.5%, as expected.

Liquidity and Capital Resources

Sources of Liquidity

The following table presents our available sources of liquidity as of March 31, 2015 (in thousands):

Source	Amount
Cash and cash equivalents, excluding restricted cash	$	68,736
Availability under revolving line of credit due June 2019 (1)	349,703
Availability under 2013 RSA (2)	40,400
Total unrestricted liquidity	$	458,839
Restricted cash (3)	61,692
Restricted investments, held to maturity, amortized cost (3)	18,286
Total liquidity, including restricted cash and restricted investments	$	538,817

____________

(1) As of March 31, 2015, we had no borrowings and $100.3 million in letters of credit, primarily related to workers' compensation and self-insurance liabilities, under our $450.0 million revolving credit facility, leaving $349.7 million available.

(2) Based on eligible receivables at March 31, 2015, our borrowing base for the 2013 RSA was $334.4 million, while outstanding borrowings were $294.0 million.

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(3) Restricted cash and restricted short-term investments are primarily held by our captive insurance companies for claims payments.

Uses of Liquidity

Our business requires substantial amounts of cash for operating expenses, capital expenditures, other assets, working capital changes, principal and interest payments on our obligations, tax payments and letters of credit required for insurance.

When justified by customer demand, as well as our liquidity and our ability to generate acceptable returns, we make substantial capital expenditures to maintain a modern company tractor fleet, refresh our trailer fleet and fund growth in our revenue equipment fleet. We expect net cash capital expenditures of approximately $305 million to $330 million for 2015. Further, we expect to continue to obtain a portion of our equipment under operating and capital leases, which are not reflected as net cash capital expenditures. In addition, we believe we have ample flexibility with our trade cycle and purchase agreements to alter our current plans if economic or other conditions warrant. Beyond 2015, we expect our net capital expenditures to remain substantial.

We believe we can finance our expected cash needs, including debt repayment, for at least the next twelve months with cash flows from operations, borrowings under our revolving credit facility, borrowings under our 2013 RSA, and lease financing. Over the long-term, we will continue to have significant capital requirements, which may require us to seek additional borrowings, lease financing, or equity capital. The availability of financing or equity capital will depend upon our financial condition and results of operations as well as prevailing market conditions. If such additional borrowings, lease financing, or equity capital is not available at the time we need to access such funds, then we may be required to utilize the revolving credit facility (if not then fully drawn), extend the maturity of then-outstanding indebtedness, rely on alternative financing arrangements, or engage in asset sales.

There can be no assurance that we will be able to incur additional debt under our existing financial arrangements to satisfy our ongoing capital requirements. However, we believe the combination of our expected cash flows, financing available through new equipment leases which are not subject to debt incurrence baskets, available funds under the 2013 RSA, and availability under our revolving credit facility will be sufficient to fund our expected capital expenditures for at least the next twelve months.

Material Debt Agreements

As of March 31, 2015, we had $1.4 billion in material debt obligations at the following carrying values:

• $494.4 million: Term Loan A, due June 2019

• $395.1 million: Term Loan B, due June 2021, net of $0.9 million OID

• $294.0 million: 2013 RSA outstanding borrowings

• $199.7 million: Capital lease obligations

• $ 10.1 million: Other

As of December 31, 2014, we had $1.5 billion in material debt obligations at the following carrying values:

• $500.0 million: Term Loan A, due June 2019

• $396.1 million: Term Loan B, due June 2021, net of $0.9 million OID

• $334.0 million: 2013 RSA outstanding borrowings

• $201.0 million: Capital lease obligations

• $ 57.0 million: Revolver

• $ 7.0 million: Other

Key terms and other details regarding our material debt agreements are discussed in Notes 5, 6, and 7 in the Notes to Consolidated Financial Statements, included in Part I, Item 1: Financial Information, in this Quarterly Report on Form 10-Q for the three months ended March 31, 2015.

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Cash Flows

The following table summarizes our cash flow activities for the three months ended March 31, 2015, as compared to the three months ended March 31, 2014.

	Three Months Ended March 31,
	2015			2014			2015 vs 2014
	(In thousands)
Net cash provided by operating activities	$	128,157		$	76,157		$	52,000
Net cash used in investing activities	(56,614		)	(25,203		)	(31,411		)
Net cash used in financing activities	(107,939		)	(64,034		)	(43,905		)

Net Cash Provided by Operating Activities — Factors affecting the $52.0 million increase in net cash provided by operating activities for the three months ended March 31, 2015, as compared to the three months ended March 31, 2014, are depicted in the following cash flow waterfall analysis:

Favorable Variances:

(1) $61.4 million increase in cash flows related to changes within accounts receivable. This increase in net cash provided by changes in accounts receivable was primarily related to the timing of collections during the three months ended March 31, 2015, as compared to the same period in 2014.

(2) $28.8 million increase in operating income, driven by the factors discussed in "Results of Operations — Segment Review" and "Results of Operations — Consolidated Operating and Other Expenses," above.

Unfavorable Variances:

(3) $33.8 million decrease in cash flows related to changes within accounts payable, accrued and other liabilities. This decrease in cash flows was primarily related to the timing of payments to vendors, claims payments and payments to owner-operators during the three months ended March 31, 2015, as compared to the same period in 2014.

(4) The remaining $4.4 million decrease is related to various factors that had an immaterial impact on net cash provided by operating activities, individually and in aggregate.

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Net Cash Used in Investing Activities — Factors affecting the $31.4 million increase in net cash used in investing activities for the three months ended March 31, 2015, as compared to the three months ended March 31, 2014, are depicted in the following cash flow waterfall analysis:

Favorable Variance:

(1) $6.3 million decrease in net cash used for investing in held-to-maturity securities. Proceeds from maturities of restricted investments increased by $4.7 million and purchases of investments decreased by $1.6 million for the three months ended March 31, 2015, as compared to the same period in 2014.

Unfavorable Variances:

(2) $19.9 million increase in cash flows used in investing activities related to the change in restricted cash balances. During the three months ended March 31, 2015, restricted cash increased by $16.1 million, primarily due to premiums paid to our captive insurance companies. During the three months ended March 31, 2014, the restricted cash balance decreased by $3.8 million.

(3) $15.1 million decrease in proceeds from sale of property and equipment.

(4) The remaining $2.8 million unfavorable variance is related to various factors that had an immaterial impact on net cash used in investing activities, individually and in aggregate.

Net Cash Used in Financing Activities — Factors affecting the $43.9 million increase in net cash used in financing activities for the three months ended March 31, 2015, as compared to the three months ended March 31, 2014 are depicted in the following cash flow waterfall analysis:

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Favorable Variances:

(1) $27.2 million decrease in net cash used for repayments of long-term debt and capital lease obligations. During the three months ended March 31, 2015, the Company repaid $19.3 million in long-term debt and capital lease obligations, including $8.0 million in repayments that were primarily related to its Term Loan A and Term Loan B. During the three months ended March 31, 2014, the Company repaid $46.5 million in long-term debt and capital lease obligations, including a $23.8 million repurchase of its Senior Notes, $10.1 million repayment of its Term Loan B-1 of the 2013 Agreement, and $2.4 million in repayments of other debt balances.

(2) The remaining $3.9 million favorable variance is related to $4.5 million in proceeds received from long-term debt, partially offset by other factors that had an immaterial impact on net cash used in financing activities, individually and in aggregate.

Unfavorable Variances:

(3) $40.0 million increase in net repayments on the revolving credit facility. During the three months ended March 31, 2015, the Company repaid $57.0 million on the revolving credit facility, as compared to the three months ended March 31, 2014, when the Company repaid $17.0 million on the revolving credit facility.

(4) $35.0 million increase in net repayments on the 2013 RSA. During the three months ended March 31, 2015, the Company repaid $50.0 million on the 2013 RSA, which was partially offset by $10.0 million in proceeds from advances. During the three months ended March 31, 2014, the Company repaid $5.0 million on the 2013 RSA.

Working Capital

As of March 31, 2015 and December 31, 2014, we had a working capital surplus of $291.5 million and $378.2 million, respectively.

Capital and Operating Leases

In addition to our net cash capital expenditures, we enter into lease agreements to acquire revenue equipment, including tractors and trailers. Our tractor and trailer lease acquisitions and terminations were as follows (in thousands):

	Three Months Ended March 31,
	2015		2014
Gross value of revenue equipment acquired with:
Capital leases	$	9,988	$	—
Operating leases	38,661		85,808
Originating value of terminated revenue equipment leases:
Capital leases	$	—	$	30,558
Operating leases	7,979		46,160

Contractual Obligations

Refer to "Liquidity and Capital Resources," above, and "Off Balance Sheet Arrangements," below, for details on changes in our contractual obligations during the three months ended March 31, 2015. Aside from these items, there were no material changes to the contractual obligations table, which was included in our Annual Report on Form 10-K for the year ended December 31, 2014.

Off Balance Sheet Arrangements

We lease 10,385 tractors under operating leases, which includes 6,549 company tractors and 3,836 owner-operator tractors financed by the Company. Operating leases have been an important source of financing for our revenue equipment. In accordance with ASC Topic 840, Leases, property and equipment held under operating leases are not reflected on our consolidated balance sheets. All expenses related to operating leases and related liabilities are reflected in our consolidated income statements under “Rental expense.” Rental expense was $62.0 million for the three months ended March 31, 2015, compared with $51.7 million in the three months ended March 31, 2014.

As of March 31, 2015, the Company had commitments outstanding to acquire revenue equipment for the remainder of 2015 for approximately $705.5 million ($569.4 million of which were tractor commitments) and in 2016 to 2017 for approximately $380.5 million (all of which were tractor commitments). The Company generally has the option to cancel tractor purchase orders with 60 to 90 days notice prior to the scheduled production, although the notice period has lapsed for approximately 31.3% of the tractor commitments outstanding as of March 31, 2015. These purchases are expected to be financed by the combination of operating leases, capital leases, debt, proceeds from sales of existing equipment and cash flows from operations.

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Table of ContentsGlossary of Terms

SWIFT TRANSPORTATION COMPANY

MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (UNAUDITED) — CONTINUED

As of March 31, 2015, the Company had outstanding purchase commitments of approximately $8.6 million for facilities and non-revenue equipment. Factors such as costs and opportunities for future terminal expansions may change the amount of such expenditures.

Seasonality

In the truckload industry, results of operations generally show a seasonal pattern. As customers ramp up for the holiday season at year-end, the late third and fourth quarters have historically been our strongest volume quarters. As customers reduce shipments after the winter holiday season, the first quarter has historically been a lower volume quarter for us than the other three quarters. In recent years, the macro consumer buying patterns combined with shippers’ supply chain management, which historically contributed to the fourth quarter “peak” season, continued to evolve. As a result, our fourth quarter 2014, 2013 and 2012 volumes were more evenly disbursed throughout the quarter rather than peaking early in the quarter. In the eastern and mid-western United States, and to a lesser extent in the western United States, during the winter season our equipment utilization typically declines and our operating expenses generally increase, with fuel efficiency declining because of engine idling and severe weather sometimes creating higher accident frequency, increased claims, and more equipment repairs. Our revenue may also be affected by holidays as a result of curtailed operations or vacation shutdowns, because our revenue is directly related to available working days of shippers. From time to time, we also suffer short-term impacts from severe weather and similar events, such as tornadoes, hurricanes, blizzards, ice storms, floods, fires, earthquakes, and explosions that could add volatility to, or harm, our results of operations.

Inflation

Inflation can have an impact on our operating costs. A prolonged period of inflation could cause interest rates, fuel, wages, and other costs to increase, which would adversely affect our results of operations unless freight rates correspondingly increase. However, the effect of inflation has been minor in recent years.

Recently Issued Accounting Pronouncements

See Note 2 under Part I, Item 1: Financial Statements in this Quarterly Report on Form 10-Q for recently issued accounting pronouncements that could have an impact on our consolidated financial statements.

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SWIFT TRANSPORTATION COMPANY

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We have interest rate exposure arising from our 2014 Agreement, 2013 RSA, and other financing agreements, which have variable interest rates. These variable interest rates are impacted by changes in short-term interest rates, although the volatility related to the first lien term loan B tranche is mitigated due to a minimum LIBOR rate of 0.75%. We manage interest rate exposure through a mix of variable- and fixed-rate debt (weighted average rate of 2.3% before applicable margin). Assuming the current level of borrowings, a hypothetical one-percentage point increase in interest rates would increase our annual interest expense by $10.0 million, considering the effect of the minimum LIBOR rate on the first lien term loan B tranche.

We have commodity exposure with respect to fuel used in company tractors. Increases in fuel prices would continue to raise our operating costs, even after applying fuel surcharge revenue. Historically, we have been able to recover a majority of fuel price increases from our customers in the form of fuel surcharges. The weekly average diesel price per gallon in the United States, as reported by the DOE, decreased from an average of $3.962 per gallon for the three months ended March 31, 2014 to an average of $2.916 per gallon for the three months ended March 31, 2015. We cannot predict the extent or speed of potential changes in fuel price levels in the future, the degree to which the lag effect of our fuel surcharge programs will impact us as a result of the timing and magnitude of such changes, or the extent to which effective fuel surcharges can be maintained and collected to offset such increases. We generally have not used derivative financial instruments to hedge our fuel price exposure in the past, but continue to evaluate this possibility.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the design and operation of our disclosure controls and procedures and determined that as of March 31, 2015 our disclosure controls and procedures were effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, to allow timely decisions regarding required disclosure.

Change in Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting during the quarter ended March 31, 2015 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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SWIFT TRANSPORTATION COMPANY

PART II — OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Information about our legal proceedings is included in Note 9 of the notes to our consolidated financial statements, included in Part I, Item 1, in this Quarterly Report on Form 10-Q for the period ended March 31, 2015 and is incorporated by reference herein.

ITEM 1A. RISK FACTORS

In addition to the other information set forth in this report, the factors discussed in Part I, Item 1A, "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2014 should be carefully considered as these risk factors could materially affect our business, financial condition, future results and/or our ability to maintain compliance with our debt covenants. The risks described in our Annual Report are not the only risks facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also adversely affect our business, financial condition, operating results and/or our ability to maintain compliance with our debt covenants.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Not applicable.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

Exhibit Number	Description	Page or Method of Filing
3.1	Amended and Restated Certificate of Incorporation of Swift Transportation Company	Incorporated by reference to Exhibit 3.1 of Form 10-K for the year ended December 31, 2010
3.2	Bylaws of Swift Transportation Company	Incorporated by reference to Exhibit 3.2 of Form 10-K for the year ended December 31, 2010
10.1	Second Amendment to Amended and Restated Receivables Purchase Agreement	Filed herewith
31.1	Certification by CEO pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
31.2	Certification by CFO pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed herewith
32.1	Certification by CEO and CFO pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Furnished herewith
101.INS	XBRL Instance Document	Filed herewith
101.SCH	XBRL Taxonomy Extension Schema Document	Filed herewith
101.CAL	XBRL Taxonomy Calculation Linkbase Document	Filed herewith
101.LAB	XBRL Taxonomy Label Linkbase Document	Filed herewith
101.PRE	XBRL Taxonomy Presentation Linkbase Document	Filed herewith
101.DEF	XBRL Taxonomy Extension Definition Document	Filed herewith

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Table of ContentsGlossary of Terms

SWIFT TRANSPORTATION COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		SWIFT TRANSPORTATION COMPANY
Date:	May 6, 2015	/s/ Jerry Moyes
		Jerry Moyes
		Chief Executive Officer
		(Principal Executive Officer)
Date:	May 6, 2015	/s/ Virginia Henkels
		Virginia Henkels
		Executive Vice President and Chief Financial Officer
		(Principal Financial Officer)

45

EX-10.1

Exhibit 10.1

SECOND AMENDMENT
TO
AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT

THIS SECOND AMENDMENT TO AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (the “Amendment”), dated as of March 31, 2015, is entered into among Swift Receivables Company II, LLC (the “Seller”), Swift Transportation Services, LLC (the “Servicer”), the Conduit Purchasers party hereto, the Related Committed Purchasers party hereto, the Purchaser Agents party hereto, the LC Participants party hereto and PNC Bank, National Association, as LC Bank and as administrator (the “Administrator”). All capitalized terms used herein and not defined herein shall have the meanings set forth in the hereinafter defined Purchase Agreement.

WITNESSETH:

WHEREAS, the Seller, Servicer, the Conduit Purchasers from time to time party thereto, the Related Committed Purchasers from time to time party thereto, the Purchaser Agents from time to time party thereto, the LC Participants from time to time party thereto and the Administrator have heretofore executed and delivered an Amended and Restated Receivables Purchase Agreement dated as of June 14, 2013 (as amended, supplemented or otherwise modified through the date hereof, the “Purchase Agreement”); and

WHEREAS, the parties hereto desire to amend the Purchase Agreement as provided herein;

NOW, THEREFORE, for good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties hereto hereby agree that the Purchase Agreement shall be and is hereby amended as follows:

Section 1.    The Purchase Agreement is hereby amended as follows:

1.1.    The first sentence of Section 6.3(e) of the Purchase Agreement is hereby amended and restated in its entirety and as so amended and restated shall read as follows:

Each party hereto agrees and consents (i) to any Conduit Purchaser’s assignment, participation, grant of security interests in or other transfers of any portion of, or any of its beneficial interest in, the Purchased Interest (or portion thereof), including without limitation to any collateral agent or trustee in connection with such Conduit Purchaser’s commercial paper note program and (ii) to the complete assignment by any Conduit Purchaser of all of its rights and

1

Exhibit 10.1

obligations hereunder to any other Person, and upon such assignment such Conduit Purchaser shall be released from all obligations and duties, if any, hereunder; provided, that such Conduit Purchaser may not, without the prior consent of its Related Committed Purchasers and the Seller (provided, that the consent of the Seller shall not be unreasonably withheld or delayed and that no such consent shall be required if a Termination Event or Unmatured Termination Event has occurred and is continuing), make any such transfer of its rights hereunder unless the assignee (x) is principally engaged in the purchase of assets similar to the assets being purchased hereunder, (y) has as its Purchaser Agent the Purchaser Agent of the assigning Conduit Purchaser and (z) issues commercial paper or other Notes with credit ratings substantially comparable to the ratings of the assigning Conduit Purchaser.

1.2.    The defined term “LIBOR Market Index Rate” appearing in Exhibit I to the Purchase Agreement is hereby amended and restated in its entirety and so amended and restated shall read as follows:

“LIBOR Market Index Rate” means, for any day, the one-month Eurodollar Rate for U.S. dollar deposits as reported on the Reuters Screen LIBOR01 Pageor any other page that may replace such page from time to time for the purpose of displaying offered rates of leading banks for London interbank deposits in United States dollars, as of 11:00 a.m. (London time) on such date, or if such day is not a Business Day, then the immediately preceding Business Day (or if not so reported, then as determined by the Administrator from another recognized source for interbank quotation), in each case, changing when and as such rate changes. Notwithstanding the foregoing, if the LIBOR Market Index Rate as determined herein would be less than zero (0.00), such rate shall be deemed to be zero percent (0.00%) for purposes of this Agreement.

1.3.    Section 1, clause (l) of Exhibit III to the Purchase Agreement is hereby amended and restated in its entirety and so amended and restated shall read as follows:

(l)    Investment Company Act. The Seller is not (i) an “investment company,” or a company “controlled” by an “investment company,” within the meaning of the Investment Company Act of 1940, as amended (the “Investment Company Act”) and (ii) a

2

Exhibit 10.1

“covered fund” under Section 13 of the U.S. Bank Holding Company Act of 1956, as amended, and the applicable rules and regulations thereunder (the “Volcker Rule”). In determining that the Seller is not a “covered fund” under the Volcker Rule, the Seller is entitled to rely on the exemption from the definition of “investment company” set forth in Section 3(c)(5)(A) or (B) of the Investment Company Act.

1.4.    Clause (g) appearing on Exhibit V to the Purchase Agreement is hereby amended and restated in its entirety and so amended and restated shall read as follows:

(g)    (i) the average for three consecutive Fiscal Months of: (A) the Default Ratio shall exceed 5.5%, (B) the Delinquency Ratio shall exceed (x) 8.5% as of the last day of the Fiscal Months ending on March 31, 2015, April 30, 2015, May 31, 2015 and June 30, 2015, (y) 8.0% as of the last day of the Fiscal Months ending on July 31, 2015, August 31, 2015, September 30, 2015, October 31, 2015, November 30, 2015 and December 31, 2015 and (z) 7.0% as of the last day of any Fiscal Month thereafter, or (C) the Dilution Ratio shall exceed 3.0% or (ii) the Days’ Sales Outstanding exceeds 45 days;

Section 2.    This Amendment shall become effective on the date that each of the following shall have been satisfied:

(a)    the Administrator shall have received counterparts hereof executed by the Seller, the Servicer, each Purchaser and the Administrator;

(b)    the Parent shall have executed and delivered to the Administrator an acknowledgment and consent; and

(c)    each Purchaser shall have received its amendment fee as set forth in that certain Fee Letter dated as of March 31, 2015.

Section 3.    To induce the Administrator and the Purchasers to enter into this Amendment, the Seller and Servicer represent and warrant to the Administrator and the Purchasers that: (a) the representations and warranties contained in the Transaction Documents, are true and correct in all material respects as of the date hereof with the same effect as though made on the date hereof (it being understood and agreed that any representation or warranty which by its terms is made as of a specified date shall be required to be true and correct in all material respects only as of such specified date); (b) no Termination Event or Unmatured Termination Event exists; (c) this Amendment has been duly authorized by all necessary corporate proceedings and duly executed

3

Exhibit 10.1

and delivered by each of the Seller and the Servicer, and the Purchase Agreement, as amended by this Amendment, and each of the other Transaction Documents are the legal, valid and binding obligations of the Seller and the Servicer, enforceable against the Seller and the Servicer in accordance with their respective terms, except as enforceability may be limited by bankruptcy, insolvency or other similar laws of general application affecting the enforcement of creditors’ rights or by general principles of equity; and (d) no consent, approval, authorization, order, registration or qualification with any governmental authority is required for, and in the absence of which would adversely effect, the legal and valid execution and delivery or performance by the Seller or the Servicer of this Amendment or the performance by the Seller or the Servicer of the Purchase Agreement, as amended by this Amendment, or any other Transaction Document to which they are a party.

Section 4.    This Amendment may be executed in any number of counterparts and by the different parties on separate counterparts and each such counterpart shall be deemed to be an original, but all such counterparts shall together constitute but one and the same Amendment.

Section 5.    Except as specifically provided above, the Purchase Agreement and the other Transaction Documents shall remain in full force and effect and are hereby ratified and confirmed in all respects. The execution, delivery, and effectiveness of this Amendment shall not operate as a waiver of any right, power, or remedy of any Administrator or any Purchaser under the Purchase Agreement or any of the other Transaction Documents, nor constitute a waiver or modification of any provision of any of the other Transaction Documents. All defined terms used herein and not defined herein shall have the same meaning herein as in the Purchase Agreement. The Seller agrees to pay on demand all costs and expenses (including reasonable fees and expenses of counsel) of or incurred by the Administrator and each Purchaser Administrator in connection with the negotiation, preparation, execution and delivery of this Amendment.

Section 6.    This Amendment and the rights and obligations of the parties hereunder shall be construed in accordance with and be governed by the law of the State of New York.

4

Exhibit 10.1

IN WITNESS WHEREOF, the parties have caused this Amendment to be executed and delivered by their duly authorized officers as of the date first above written.

SWIFT RECEIVABLES COMPANY II, LLC, as Seller

By:	/s/ Virginia Henkels
Name:	Virginia Henkels
Title:	CFO, Treasurer

SWIFT TRANSPORTATION SERVICES, LLC, as Servicer

By:	/s/ Virginia Henkels
Name:	Virginia Henkels
Title:	CFO, Treasurer

S-1

Second Amendment to Amended and Restated

Receivables Purchase Agreement

Exhibit 10.1

PNC BANK, NATIONAL ASSOCIATION, as Administrator

By:	/s/ Robyn A. Reeher
Name:	Robyn A. Reeher
Title:	Vice President

PNC BANK, NATIONAL ASSOCIATION, as Purchaser Agent for the PNC Bank Purchaser Group

By:	/s/ Robyn A. Reeher
Name:	Robyn A. Reeher
Title:	Vice President

PNC BANK, NATIONAL ASSOCIATION,
as a Related Committed Purchaser

By:	/s/ Robyn A. Reeher
Name:	Robyn A. Reeher
Title:	Vice President

PNC BANK, NATIONAL ASSOCIATION, as the LC Bank

By:	/s/ Robyn A. Reeher
Name:	Robyn A. Reeher
Title:	Vice President

S-2

Second Amendment to Amended and Restated

Receivables Purchase Agreement

Exhibit 10.1

WELLS FARGO BANK, NATIONAL ASSOCIATION, as Purchaser Agent for the Wells Fargo Purchaser Group

By:	/s/ Elizabeth R. Wagner
Name:	Elizabeth R. Wagner
Title:	Vice President

WELLS FARGO BANK, NATIONAL ASSOCIATION, as a Related Committed Purchaser

By:	/s/ Elizabeth R. Wagner
Name:	Elizabeth R. Wagner
Title:	Vice President

WELLS FARGO BANK, NATIONAL ASSOCIATION, as a LC Participant

By:	/s/ Elizabeth R. Wagner
Name:	Elizabeth R. Wagner
Title:	Vice President

S-3

Second Amendment to Amended and Restated

Receivables Purchase Agreement

Exhibit 10.1

CITIBANK, N.A., as Purchaser Agent for the Citibank Purchaser Group

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

CITIBANK, N.A., as a Related Committed Purchaser and as a LC Participant

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

CAFCO, LLC, as Conduit PurchaserBy: Citibank, N.A., as Attorney-in-fact

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

CHARTA, LLC, as Conduit PurchaserBy: Citibank, N.A., as Attorney-in-fact

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

CIESCO, LLC, as Conduit PurchaserBy: Citibank, N.A., as Attorney-in-fact

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

S-4

Second Amendment to Amended and Restated

Receivables Purchase Agreement

Exhibit 10.1

CRC FUNDING, LLC, as Conduit PurchaserBy: Citibank, N.A., as Attorney-in-fact

By:	/s/ Steffen Lunde
Name:	Steffen Lunde
Title:	Vice President

S-5

Second Amendment to Amended and Restated

Receivables Purchase Agreement

EX-31.1

EXHIBIT 31.1

RULE 13a-14(a)/15d-14(a) CERTIFICATION

I, Jerry Moyes, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Swift Transportation Company;

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 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 report;

4. The registrant’s other certifying officer(s) 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 Rules 13a-15(f) and 15d-15(f)) for the registrant and 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 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 report based on such evaluation;

d) Disclosed in this 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 the 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the 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:	May 6, 2015	/s/ Jerry Moyes
		Jerry Moyes
		Chief Executive Officer

EX-31.2

EXHIBIT 31.2

RULE 13a-14(a)/15d-14(a) CERTIFICATION

I, Virginia Henkels, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Swift Transportation Company;

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 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 report;

4. The registrant’s other certifying officer(s) 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 Rules 13a-15(f) and 15d-15(f)) for the registrant and 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 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 report based on such evaluation;

d) Disclosed in this 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 the 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(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the 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:	May 6, 2015	/s/ Virginia Henkels
		Virginia Henkels
		Executive Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION 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 on Form 10-Q of Swift Transportation Company (the “Company”) for the quarter ending March 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, the undersigned, certify, to the best of our knowledge, that:

(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.

		SWIFT TRANSPORTATION COMPANY,
		a Delaware corporation
Date:	May 6, 2015	By:	/s/ Jerry Moyes
			Jerry Moyes
			Chief Executive Officer
Date:	May 6, 2015	By:	/s/ Virginia Henkels
			Virginia Henkels
			Executive Vice President and Chief Financial Officer

XML

Contingencies (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Loss Contingencies [Line Items]
Lawsuit filing date	September 25, 2014
Loss contingency, name of plaintiffs	Lawrence Peck
2004 Owner-Operator Class Action Litigation [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	January 30, 2004
Loss contingency, name of plaintiffs	Leonel Garza
Owner-Operator Misclassification Class Action Litigation [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	December 22, 2009
Loss contingency, name of plaintiffs	John Doe 1 and Joseph Sheer
California Wage, Meal And Rest Employee Class Action [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	March 22, 2010
Loss contingency, name of plaintiffs	John Burnell
Washington Overtime Class Action [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	September 9, 2011
Loss contingency, name of plaintiffs	Troy Slack
Utah collective and individual arbitration [Member] [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	June 1, 2012
Loss contingency, name of plaintiffs	Gabriel Cilluffo, Kevin Shire and Bryan Ratterree
Environmental Notice [Member]
Loss Contingencies [Line Items]
Lawsuit filing date	April 17, 2009
Loss contingency, name of plaintiffs	Lower Willamette Group
Potentially responsible parties	250
Other environmental [Member]
Loss Contingencies [Line Items]
Loss Contingency, Range of Possible Loss, Maximum	0.4

XML

Segment Information (Summary Of Financial Information By Segments) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Segment Information [Line Items]
Operating Income (Loss)	$ 75,000	$ 46,170
Revenues	1,015,144	1,008,446
Consolidated depreciation and amortization expense	56,927	56,175
Dedicated Trucking [Member]
Segment Information [Line Items]
Operating Income (Loss)	14,345	11,530
Revenues	217,775	193,653
Consolidated depreciation and amortization expense	14,273	12,405
Trucking [Member]
Segment Information [Line Items]
Operating Income (Loss)	56,854	31,907
Revenues	538,341	553,057
Consolidated depreciation and amortization expense	28,610	30,245
Intersegment Eliminations [Member]
Segment Information [Line Items]
Revenues	(18,516)	(12,006)
Non Reportable Segments [Member]
Segment Information [Line Items]
Operating Income (Loss)	245	1,239
Revenues	91,622	75,666
Consolidated depreciation and amortization expense	7,498	8,051
Subtotal [Member]
Segment Information [Line Items]
Operating Income (Loss)	74,755	44,931
Revenues	942,038	944,786
Consolidated depreciation and amortization expense	49,429	48,124
CRS Refrigerated [Member]
Segment Information [Line Items]
Operating Income (Loss)	4,799	2,420
Revenues	95,568	106,763
Consolidated depreciation and amortization expense	3,294	3,106
Rail Intermodal [Member]
Segment Information [Line Items]
Operating Income (Loss)	(1,243)	(926)
Revenues	90,354	91,313
Consolidated depreciation and amortization expense	$ 3,252	$ 2,368

XML

Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Income Tax Contingency [Line Items]
Effective tax rate	38.50%
Accrued interest and penalties	$ 1.3
Tax years subject to examination	2010 through 2013
Maximum [Member]
Income Tax Contingency [Line Items]
State of California and other state jurisdictions years	2013

XML

Goodwill and Other Intangible Assets Indefinite-lived intangible assets (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Indefinite-lived intangible assets [Abstract]
Goodwill, Impairment Loss	$ 0	$ 0

XML

Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

Losses on cash flow hedging, reclassified out of AOCI into the consolidated income statements were as follows (in thousands):

		Three Months Ended March 31,
	Reclassified to:	2015			2014
Interest rate swaps	Derivative interest expense	$	1,848		$	1,314
Income tax (benefit) expense	Income tax expense	(711		)	(506		)
	Net income	$	1,137		$	808

Classification Of Gains And Losses On Interest Rate Derivative Contracts Designated As Hedging Instruments

The following table presents pre-tax losses from changes in fair value of the Company's interest rate swaps, included in earnings (in thousands):

	Three Months Ended March 31,
	2015		2014
Loss reclassified from AOCI into net income from cash flow hedges (effective portion)	$	1,848	$	1,314
Loss recognized in income from de-designated derivative contracts	945		339
Derivative interest expense	$	2,793	$	1,653

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Fair Value Measurement (Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 0
Estimate of Fair Value Measurement [Member] | Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	18,290,000	24,502,000
Estimate of Fair Value Measurement [Member] | 2014 Agreement, Term Loan A [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	494,375,000	500,000,000
Estimate of Fair Value Measurement [Member] | 2014 Agreement, Term Loan B [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	395,858,000	390,436,000
Estimate of Fair Value Measurement [Member] | Securitization Of Accounts Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	294,000,000	334,000,000
Reported Value Measurement [Member] | Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Assets	18,286,000	24,510,000
Reported Value Measurement [Member] | 2014 Agreement, Term Loan A [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	494,375,000	500,000,000
Reported Value Measurement [Member] | 2014 Agreement, Term Loan B [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	395,115,000	396,080,000
Reported Value Measurement [Member] | Securitization Of Accounts Receivable [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial Liabilities	294,000,000	334,000,000
Secured Debt [Member] | 2014 Agreement, Term Loan B [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Unamortized Discount	$ 885,000	$ 920,000

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Capital Leases (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Leases [Abstract]
Accumulated amortization	$ 71,600,000		$ 68,000,000
Capital Leases, Net Investment in Direct Financing Leases	266,700,000		270,600,000
Operating Leases, Rent Expense, Net	$ 61,975,000	$ 51,719,000

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Segment Information (Narrative) (Detail)	3 Months Ended
	Mar. 31, 2015 Segment	Mar. 31, 2014
Segment Reporting [Abstract]
Number of reportable operating segments	4
Percentage of foreign operations total revenue	5.00%	5.00%

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New Accounting Standards

3 Months Ended

Mar. 31, 2015

Accounting Changes and Error Corrections [Abstract]

New Accounting Standards

Recently Issued Accounting Pronouncements

In April 2015, FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, which amends ASC Subtopic 835-30, Interest — Imputation of Interest. The amendments in this ASU simplify the presentation of debt issuance costs and align the presentation with debt discounts. Entities will be required to present debt issuance costs as a direct deduction from the face amount of the related note, rather than as a deferred charge. Upon adoption, the amended guidance will affect Swift's classification of debt issuance costs, which are currently classified in "Other assets" in the consolidated balance sheets. The reclassification of debt issuance costs will effectively decrease "Other assets" and correspondingly decrease the respective long-term debt balances. The amendments in this ASU require retrospective application, with related disclosures for a change in accounting principle. Upon adoption, the Company will comply with these disclosure requirements by providing the nature and reason for the change, the transition method, a description of the adjusted prior period information and the effect of the change on the financial statement line items. For public business entities, the amendments in this ASU will be effective for financial statements issued for fiscal years beginning after December 15, 2015, and the interim periods within those fiscal years. Early adoption is permitted; however, the Company expects to adopt this guidance at the beginning of 2016.

In February 2015, FASB issued ASU 2015-02, Amendments to the Consolidation Analysis, which amends ASC Topic 810, Consolidation, by changing the analysis that reporting entities are required to perform to determine whether certain types of legal entities should be consolidated. The amendments in this ASU focus on limited partnerships and similar legal entities (such as limited liability companies); however, all legal entities are subject to reevaluation under the revised consolidation model. The revised consolidation model modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, and eliminates the presumption that a general partner should consolidate a limited partnership. It also affects the consolidation analysis of reporting entities that are involved with variable interest entities, especially those that have fee arrangements and related-party relationships. The amendments in the ASU also affect certain investment funds. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2015, and the interim periods within those fiscal years. Early adoption is permitted. Entities may use a retrospective approach, or a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the year of adoption. The Company is currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

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Fair Value Measurement (Liabilities That Were Measured At Estimated Fair Value On Recurring Basis) (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 0
Interest Rate Swap [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	4,233,000	6,109,000
Interest Rate Swap [Member] | Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	0	0
Interest Rate Swap [Member] | Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	4,233,000	6,109,000
Interest Rate Swap [Member] | Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps	$ 0	$ 0

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Basis Of Presentation (Detail)	3 Months Ended
	Mar. 31, 2015 Segment Vehicle
Accounting Policies [Abstract]
Number of reportable operating segment	4
Number of company operated national terminal network and tractor fleet	19,535
Number of tractors driven by company drivers	14,680
Number of owner-operator tractors	4,855
Number of fleet of trailers	61,780
Number of intermodal containers	9,150

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Segment Information (Tables)

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Summary Of Financial Information By Segments

Set forth in the tables below is certain financial information with respect to the Company’s reportable segments (in thousands):

	Operating Revenue
	Three Months Ended March 31,
	2015			2014
Truckload	$	538,341		$	553,057
Dedicated	217,775			193,653
Central Refrigerated	95,568			106,763
Intermodal	90,354			91,313
Subtotal	942,038			944,786
Non-reportable segment	91,622			75,666
Intersegment eliminations	(18,516		)	(12,006		)
Consolidated operating revenue	$	1,015,144		$	1,008,446

	Operating Income (Loss)
	Three Months Ended March 31,
	2015			2014
Truckload	$	56,854		$	31,907
Dedicated	14,345			11,530
Central Refrigerated	4,799			2,420
Intermodal	(1,243		)	(926		)
Subtotal	74,755			44,931
Non-reportable segment	245			1,239
Consolidated operating income	$	75,000		$	46,170

	Depreciation and Amortization Expense
	Three Months Ended March 31,
	2015		2014
Truckload	$	28,610	$	30,245
Dedicated	14,273		12,405
Central Refrigerated	3,294		3,106
Intermodal	3,252		2,368
Subtotal	49,429		48,124
Non-reportable segment	7,498		8,051
Consolidated depreciation and amortization expense	$	56,927	$	56,175

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Fair Value Measurement Fair Value Measurement (Assets Measured On a Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Sep. 19, 2013	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value Disclosure			$ 2,300
Non-cash impairments of non-operating assets	(1,480)	0
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value Disclosure	0
Non-cash impairments of non-operating assets	(1,480)	(2,308)
Other Assets, Fair Value Disclosure				0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value Disclosure	0
Other Assets, Fair Value Disclosure				0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value Disclosure
Other Assets, Fair Value Disclosure
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value Disclosure
Other Assets, Fair Value Disclosure

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Investments (Amortized Cost, Gross Unrealized Gains And Losses, Estimated Fair Value Of Fixed Maturity Securities) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 Securities	Dec. 31, 2014 Securities
Schedule of Held-to-maturity Securities [Line Items]
Securities with unrealized losses for less than 12 months	11	24
SWFT_Duration of Securities in Unrealized Loss Position	12 months
Maximum [Member]
Schedule of Held-to-maturity Securities [Line Items]
Contractual maturities of fixed maturity securities	1 year
U.S. Corporate Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Cost or Amortized Cost	16,861	20,892
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	6	2
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	(3)	(10)
Estimated Fair Value	16,864	20,884
Foreign Corporate Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Cost or Amortized Cost		1,503
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain		0
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss		0
Estimated Fair Value		1,503
Certificates of Deposit [Member]
Schedule of Held-to-maturity Securities [Line Items]
Cost or Amortized Cost	1,425	2,115
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	1	0
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	0	0
Estimated Fair Value	1,426	2,115
Held-to-maturity Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Cost or Amortized Cost	18,286	24,510
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	7	2
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	(3)	(10)
Estimated Fair Value	18,290	24,502

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Intangible Assets (Schedule Of Intangible Assets) (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Intangible Asset Excluding Goodwill [Line Items]
Intangible assets, net	$ 295,729	$ 299,933
Trade Name [Member]
Intangible Asset Excluding Goodwill [Line Items]
Gross carrying value	181,037	181,037
Customer Relationship [Member]
Intangible Asset Excluding Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross	275,324	275,324
Accumulated amortization	$ (160,632)	$ (156,428)

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Basis Of Presentation

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Basis Of Presentation

Introduction and Basis of Presentation

Certain acronyms and terms used throughout this Quarterly Report on Form 10-Q are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document.

Description of Business

Swift is a transportation solutions provider, headquartered in Phoenix, Arizona. As of March 31, 2015, the Company's fleet of revenue equipment included 19,535 tractors (comprised of 14,680 company tractors and 4,855 owner-operator tractors), 61,780 trailers and 9,150 intermodal containers. The Company’s four reportable segments are Truckload, Dedicated, Central Refrigerated and Intermodal.

Seasonality

In the truckload industry, results of operations generally show a seasonal pattern. As customers ramp up for the holiday season at year-end, the late third and fourth quarters have historically been the Company's strongest volume quarters. As customers reduce shipments after the winter holiday season, the first quarter has historically been a lower volume quarter than the other three quarters. In recent years, the macro consumer buying patterns combined with shippers’ supply chain management, which historically contributed to the fourth quarter “peak” season, continued to evolve. As a result, the Company's fourth quarter 2014, 2013 and 2012 volumes were more evenly disbursed throughout the quarter rather than peaking early in the quarter. In the eastern and mid-western United States, and to a lesser extent in the western United States, during the winter season the Company's equipment utilization typically declines and operating expenses generally increase, with fuel efficiency declining because of engine idling and severe weather sometimes creating higher accident frequency, increased claims, and more equipment repairs. Revenue may also be affected by holidays as a result of curtailed operations or vacation shutdowns, because the Company's revenue is directly related to available working days of shippers. From time to time, the Company also suffers short-term impacts from severe weather and similar events, such as tornadoes, hurricanes, blizzards, ice storms, floods, fires, earthquakes, and explosions that could add volatility to or harm the Company's results of operations.

Basis of Presentation

The consolidated financial statements and footnotes included in this Quarterly Report on Form 10-Q should be read in conjunction with the financial statements and footnotes included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014. The consolidated financial statements include the accounts of Swift Transportation Company and its wholly-owned subsidiaries. In management's opinion, these financial statements were prepared in accordance with principles generally accepted in the United States and include all adjustments necessary for the fair presentation of the periods presented.

Changes in Presentation

Beginning in 2015, the Company separately presents excess tax benefits from stock-based compensation within "Net cash provided by operating activities" in the consolidated statements of cash flows. The prior period presentation has been retrospectively adjusted to reclassify the amount out of "Accounts payable, accrued and other liabilities" and into the new line item "Excess tax benefits from stock-based compensation."  The change in presentation has no net impact on “Net cash provided by operating activities."

Also beginning in 2015, the Company presents gross amounts of its investment in securities activities as "Proceeds from maturities of investments" and "Purchases of investments" in the consolidated statements of cash flows. The prior period presentation has been retrospectively adjusted to accommodate this gross presentation. The change in presentation has no net impact on "Net cash used in investing activities."

Beginning in 2015, the Company has disaggregated "Operating revenue" in the consolidated income statements into the line items "Revenue, excluding fuel surcharge revenue" and "Fuel surcharge revenue." The change in presentation has no net impact on "Operating revenue."

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Intangible Assets (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 4,204	$ 4,204
2007 Going private transaction [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	3,912	3,912
Customer Relationship [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	275,324		275,324
2007 Prior To Going Private Transaction [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 292	$ 292

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Derivative Financial Instruments (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Derivatives, Fair Value [Line Items]
Deferred losses on derivatives in accumulated OCI expected to be reclassified to earnings within next 12 months	$ 2.1

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 68,736		$ 105,132
Restricted cash	61,692		45,621
Restricted investments, held to maturity, amortized cost	18,286		24,510
Accounts receivable, net	452,757		478,999
Equipment sales receivable	689		288
Income tax refund receivable	4,233		18,455
Inventories and supplies	18,074		18,992
Assets held for sale	3,438		2,907
Prepaid taxes, licenses, insurance and other	48,874		51,441
Deferred income taxes	35,276		44,861
Current portion of notes receivable	8,730		9,202
Total current assets	720,785		800,408
Property and equipment, at cost:
Revenue and service equipment	2,120,927		2,061,835
Land	122,835		122,835
Facilities and improvements	273,567		268,025
Furniture and office equipment	68,927		67,740
Total property and equipment	2,586,256		2,520,435
Less: accumulated depreciation and amortization	1,017,060		978,305
Net property and equipment	1,569,196		1,542,130
Other assets	37,957		41,855
Intangible assets, net	295,729		299,933
Goodwill	253,256		253,256
Total assets	2,876,923		2,937,582
Current liabilities:
Accounts payable	162,226		160,186
Accrued liabilities	110,947		100,329
Current portion of claims accruals	73,429		81,251
Current portion of long-term debt	32,581		31,445
Current portion of capital lease obligations	45,891		42,902
Fair value of interest rate swaps	4,233		6,109
Total current liabilities	429,307		422,222
Revolving line of credit	0	[1]	57,000	[1]
Long-term debt, less current portion	867,042		871,615
Capital Lease Obligations, less current portion	153,786		158,104
Claims accruals, less current portion	152,732		143,693
Deferred income taxes	465,419		480,640
Securitization of Accounts Receivable	294,000		334,000
Other liabilities	32		14
Total liabilities	2,362,318		2,467,288
Contingencies (Note 9)
Stockholders’ equity:
Preferred stock, par value $0.01 per share; Authorized 10,000,000 shares; none issued	0		0
Other comprehensive income before income taxes	1,848
Additional paid-in capital	786,455		781,124
Accumulated deficit	(272,177)		(310,017)
Accumulated other comprehensive (loss) income	(1,199)		(2,336)
Noncontrolling interest	102		102
Total stockholders’ equity	514,605		470,294
Total liabilities and stockholders’ equity	2,876,923		2,937,582
Class A Common Stock [Member]
Stockholders’ equity:
Common stock, value	914		911
Class B Common Stock [Member]
Stockholders’ equity:
Common stock, value	$ 510		$ 510

[1] The Company had outstanding letters of credit, primarily related to workers' compensation and self-insurance liabilities, of $100.3 million at March 31, 2015 and $100.3 million at December 31, 2014, under the revolving line of credit.

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Earnings Per Share (Calculation Of Basic And Diluted Earnings Per Share Attributable To Stockholders) (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 37,840	$ 12,305
Basic:
Weighted average common shares outstanding	142,199	140,981
Diluted:
Dilutive effect of stock options	1,756	2,037
Total weighted average diluted shares outstanding	143,955	143,018
Earnings per share:
Basic earnings per share	$ 0.27	$ 0.09
Diluted earnings per share	$ 0.26	$ 0.09

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Consolidated Statements Of Stockholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member] Class A Common Stock [Member]	Common Stock [Member] Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2014	$ 470,294	$ 911	$ 510	$ 781,124	$ (310,017)	$ (2,336)	$ 102
Beginning balance, shares at Dec. 31, 2014		91,103,643	50,991,938
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		252,453
Excess tax benefits from exercise of stock options				1,483
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	2,392	3		2,389
Shares issued under employee stock purchase plan	287			287
Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation	1,172			1,172
Shares issued under employee stock purchase plan, shares		10,530
Stock Issued During Period, Value, Employee Stock Purchase Plan		0
Net current-period other comprehensive income	1,137					1,137
Non-cash equity compensation	1,483
Net income	37,840				37,840
Ending balance at Mar. 31, 2015	$ 514,605	$ 914	$ 510	$ 786,455	$ (272,177)	$ (1,199)	$ 102
Ending balance, shares at Mar. 31, 2015		91,366,626	50,991,938

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Debt And Financing Transactions (Schedule Of Long-Term Debt Outstanding) (Detail) (USD $)	3 Months Ended			12 Months Ended		26 Months Ended
	Mar. 31, 2015		Mar. 31, 2014	Dec. 31, 2014		Jun. 09, 2019
Debt Instrument [Line Items]
Other Long-term Debt	$ 10,133,000			6,980,000
Total	899,623,000			903,060,000
Less: current portion	(32,581,000)			(31,445,000)
Long-term Debt, Excluding Current Maturities	867,042,000			871,615,000
Revolving line of credit	0	[1]		57,000,000	[1]
Long Term debt, Including Revolving Line of Credit	899,623,000			960,060,000
Letters of Credit Outstanding, Amount	100,300,000			100,300,000
Debt Instrument, Date of First Required Payment	Mar. 31, 2015
2014 Agreement, Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	450,000,000
Debt Instrument, Maturity Date	Jun. 09, 2019
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, LIBOR Floor Rate	0.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.50%	[2],[3]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	2.25%	[2],[3]
Debt Instrument, Periodic Payment, Principal	0
Debt Instrument, Frequency of Periodic Payment	Once
Debt Instrument, Date of First Required Payment	Jun. 30, 2019
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%		0.00%
Letter of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Fee	.0175			0.02
2014 Agreement, Term Loan A [Member]
Debt Instrument [Line Items]
Total	494,375,000			500,000,000
Line of Credit Facility, Maximum Borrowing Capacity	500,000,000
Debt Instrument, Maturity Date	Jun. 09, 2019
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, LIBOR Floor Rate	0.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.50%	[3]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	2.25%	[3]
Debt Instrument, Periodic Payment, Principal	5,625,000	[4]				11,300,000
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum				2.16%
2014 Agreement, Term Loan B [Member]
Debt Instrument [Line Items]
Total	395,115,000			396,080,000
Line of Credit Facility, Maximum Borrowing Capacity	400,000,000
Debt Instrument, Maturity Date	Jun. 09, 2021
Debt Instrument, Description of Variable Rate Basis	LIBOR
Debt Instrument, LIBOR Floor Rate	0.75%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	2.75%	[3]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum	3.00%	[3]
Debt Instrument, Periodic Payment, Principal	1,000,000
Debt Instrument, Frequency of Periodic Payment	Quarterly
Debt Instrument, Date of First Required Payment	Jun. 30, 2014
Debt Instrument, Basis Spread on Variable Rate				3.00%
Secured Debt [Member] | 2014 Agreement, Term Loan A [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period	1.93%
Secured Debt [Member] | 2014 Agreement, Term Loan B [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	$ 885,000			920,000
Debt Instrument, Interest Rate During Period	3.75%			3.75%
Maximum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.35%
Minimum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%

[1] The Company had outstanding letters of credit, primarily related to workers' compensation and self-insurance liabilities, of $100.3 million at March 31, 2015 and $100.3 million at December 31, 2014, under the revolving line of credit.

[2] (2)The commitment fee for the unused portion of the Revolver is also based on the Company's consolidated leverage ratio, and ranges from 0.25% to 0.35%. As of March 31, 2015, commitment fees on the unused portion of the Revolver accrue at 0.25% and outstanding letter of credit fees accrue at 1.75%. As of December 31, 2014, commitment fees on the unused portion of the Revolver accrued at 0.30% and outstanding letter of credit fees accrued at 2.00%.

[3] (1)Interest rate margins for the Term Loan A, Term Loan B and Revolver are based on the Company's consolidated leverage ratio. As of March 31, 2015, interest accrues at 1.93% and 3.75% on the Term Loan A and Term Loan B, respectively. As of December 31, 2014, interest accrued at 2.16% and 3.75% on the Term Loan A and Term Loan B, respectively. Prior to January 1, 2015, the minimum and maximum interest rate margins on the Term Loan B were both 3.00%.

[4] (3)Commencing in March 2017, the minimum quarterly principal payment amount on the Term Loan A is $11.3 million.

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Investments (Tables)

3 Months Ended

Mar. 31, 2015

Schedule of Investments [Abstract]

Amortized Cost, Gross Unrealized Gains And Losses, Estimated Fair Value Of Fixed Maturity Securities

The following table presents the cost or amortized cost, gross unrealized gains and temporary losses, and estimated fair value of the Company’s restricted investments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	16,861	$	6	$	(3	)	$	16,864
Negotiable certificates of deposit	1,425		1		—			1,426
Total restricted investments	$	18,286	$	7	$	(3	)	$	18,290
	December 31, 2014
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	20,892	$	2	$	(10	)	$	20,884
Foreign corporate securities	1,503		—		—			1,503
Negotiable certificates of deposit	2,115		—		—			2,115
Total restricted investments	$	24,510	$	2	$	(10	)	$	24,502

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Debt And Financing Transactions (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Debt Instrument [Line Items]
Deferred Finance Costs, Net	$ 9,700,000		$ 10,400,000
Gains (losses) on extinguishment of debt	0	2,913,000
Senior Notes [Member]
Debt Instrument [Line Items]
Gains (losses) on extinguishment of debt		$ 2,900,000

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Debt And Financing Transactions (Tables)

3 Months Ended

Mar. 31, 2015

Debt Instrument [Line Items]

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

The Company entered into the 2014 Agreement on June 9, 2014, which included a delayed-draw first lien Term Loan A tranche, a first lien Term Loan B tranche, and a revolving credit line. The following table presents the key terms of the 2014 Agreement (dollars in thousands):

Description	Term Loan A	Term Loan B	Revolver (2)
Maximum borrowing capacity	$500,000	$400,000	$450,000
Final maturity date	June 9, 2019	June 9, 2021	June 9, 2019
Interest rate base	LIBOR	LIBOR	LIBOR
LIBOR floor	—%	0.75%	—%
Interest rate minimum margin (1)	1.50%	2.75%	1.50%
Interest rate maximum margin (1)	2.25%	3.00%	2.25%
Minimum principal payment - amount (3)	$5,625	$1,000	$—
Minimum principal payment - frequency	Quarterly	Quarterly	Once
Minimum principal payment - commencement date (3)	March 31, 2015	June 30, 2014	June 30, 2019

The Company entered into the 2014 Agreement on June 9, 2014, which included a delayed-draw first lien Term Loan A tranche, a first lien Term Loan B tranche, and a revolving credit line. The following table presents the key terms of the 2014 Agreement (dollars in thousands):

Description	Term Loan A	Term Loan B	Revolver (2)
Maximum borrowing capacity	$500,000	$400,000	$450,000
Final maturity date	June 9, 2019	June 9, 2021	June 9, 2019
Interest rate base	LIBOR	LIBOR	LIBOR
LIBOR floor	—%	0.75%	—%
Interest rate minimum margin (1)	1.50%	2.75%	1.50%
Interest rate maximum margin (1)	2.25%	3.00%	2.25%
Minimum principal payment - amount (3)	$5,625	$1,000	$—
Minimum principal payment - frequency	Quarterly	Quarterly	Once
Minimum principal payment - commencement date (3)	March 31, 2015	June 30, 2014	June 30, 2019

(1) Interest rate margins for the Term Loan A, Term Loan B and Revolver are based on the Company's consolidated leverage ratio. As of March 31, 2015, interest accrues at 1.93% and 3.75% on the Term Loan A and Term Loan B, respectively. As of December 31, 2014, interest accrued at 2.16% and 3.75% on the Term Loan A and Term Loan B, respectively. Prior to January 1, 2015, the minimum and maximum interest rate margins on the Term Loan B were both 3.00%.

(2) The commitment fee for the unused portion of the Revolver is also based on the Company's consolidated leverage ratio, and ranges from 0.25% to 0.35%. As of March 31, 2015, commitment fees on the unused portion of the Revolver accrue at 0.25% and outstanding letter of credit fees accrue at 1.75%. As of December 31, 2014, commitment fees on the unused portion of the Revolver accrued at 0.30% and outstanding letter of credit fees accrued at 2.00%.    

(3) Commencing in March 2017, the minimum quarterly principal payment amount on the Term Loan A is $11.3 million.

Schedule Of Long-Term Debt Outstanding

Other than the Company’s accounts receivable securitization, as discussed in Note 5, and its outstanding capital lease obligations as discussed in Note 7, the Company's long-term debt consisted of the following (in thousands):

	March 31, 2015			December 31, 2014
2014 Agreement: Term loan A, due June 2019	$	494,375		$	500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115			396,080
Other	10,133			6,980
Long-term debt	899,623			903,060
Less: current portion of long-term debt	(32,581		)	(31,445		)
Long-term debt, less current portion	$	867,042		$	871,615
Revolving line of credit (1)	$	—		$	57,000
Long-term debt, including revolving line of credit	$	899,623		$	960,060

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Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 37,840	$ 12,305
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, equipment and intangibles	61,131	60,379
Amortization of debt issuance costs, original issue discount, and losses on terminated swaps	2,606	2,515
Gain on disposal of property and equipment less write-off of totaled tractors	(3,698)	(2,958)
Impairments	1,480	0
Deferred income taxes	(6,346)	(7,942)
Provision for losses on accounts receivable	1,913	792
Non-cash loss on debt extinguishment and write-offs of deferred financing costs and original issue discount	0	2,913
Non-cash equity compensation	1,483	1,061
Excess Tax Benefits from Stock-based Compensation, Operating Activities	1,172	1,078
Income effect of mark-to-market adjustment of interest rate swaps	(119)	(32)
Increase (decrease) in cash resulting from changes in:
Accounts receivable	24,329	(37,064)
Inventories and supplies	918	653
Prepaid expenses and other current assets	16,789	18,446
Other assets	1,450	2,871
Accounts payable, accrued and other liabilities	(10,447)	23,296
Net cash provided by operating activities	128,157	76,157
Cash flows from investing activities:
(Increase) decrease in restricted cash	(16,071)	3,821
Proceeds from Sale and Maturity of Held-to-maturity Securities	14,190	9,500
Payments to Acquire Restricted Investments	(8,016)	(9,664)
Proceeds from sale of property and equipment	13,370	28,428
Capital expenditures	(62,006)	(60,058)
Payments received on notes receivable	2,065	1,553
Expenditures on assets held for sale	(2,313)	(1,521)
Payments received on assets held for sale	1,815	2,269
Payments received on equipment sale receivables	352	469
Net cash used in investing activities	(56,614)	(25,203)
Cash flows from financing activities:
Repayment of long-term debt and capital leases	(19,294)	(46,526)
Proceeds from long-term debt	4,504	0
Net repayments on revolving line of credit	(57,000)	(17,000)
Borrowings under accounts receivable securitization	10,000	0
Repayment of accounts receivable securitization	(50,000)	(5,000)
Proceeds from common stock issued	2,679	3,414
Excess Tax Benefit from Share-based Compensation, Financing Activities	(1,172)	(1,078)
Net cash used in financing activities	(107,939)	(64,034)
Net decrease in cash and cash equivalents	(36,396)	(13,080)
Cash and cash equivalents at beginning of period	105,132
Cash and cash equivalents at end of period	68,736
Cash paid during the period for:
Interest	13,912	11,854
Income taxes	1,507	3,463
Non-cash investing activities:
Equipment purchase accrual	59,814	59,867
Notes Issued	1,298	2,762
Equipment sales receivables	753	7,376
Non-cash financing activities:
Capital lease additions	$ 9,988	$ 0

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Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares Authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares Authorized	500,000,000	500,000,000
Common stock, shares issued	91,366,626	91,103,643
Common stock, shares outstanding	91,366,626	91,103,643
Class B Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares Authorized	250,000,000	250,000,000
Common stock, shares issued	50,991,938	50,991,938
Common stock, shares outstanding	50,991,938	50,991,938

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Derivative Financial Instruments

3 Months Ended

Mar. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Derivative Financial Instruments

The following table presents pre-tax losses from changes in fair value of the Company's interest rate swaps, included in earnings (in thousands):

	Three Months Ended March 31,
	2015		2014
Loss reclassified from AOCI into net income from cash flow hedges (effective portion)	$	1,848	$	1,314
Loss recognized in income from de-designated derivative contracts	945		339
Derivative interest expense	$	2,793	$	1,653

As of March 31, 2015, $2.1 million of deferred losses on derivatives in AOCI are expected to be reclassified to earnings within the next 12 months. There were no losses recognized in AOCI from the effective portion of cash flow hedges during the three months ended March 31, 2015 or 2014.

Losses on cash flow hedging, reclassified out of AOCI into the consolidated income statements were as follows (in thousands):

		Three Months Ended March 31,
	Reclassified to:	2015			2014
Interest rate swaps	Derivative interest expense	$	1,848		$	1,314
Income tax (benefit) expense	Income tax expense	(711		)	(506		)
	Net income	$	1,137		$	808

Activities related to AOCI net of tax, are presented in the consolidated statement of stockholders' equity, and primarily pertain to derivative financial instruments. The tax effects are presented in the consolidated statements of comprehensive income. Activities related to foreign currency transactions were immaterial for the three months ended March 31, 2015 and 2014.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2015	May 01, 2015
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	SWFT
Entity Registrant Name	SWIFT TRANSPORTATION Co
Entity Central Index Key	0001492691
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Class A Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		91,382,832
Class B Common Stock [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		50,991,938

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Fair Value Measurement

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurement

Fair Value Measurement

The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015				December 31, 2014
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Restricted investments	$	18,286	$	18,290	$	24,510	$	24,502
Financial Liabilities:
2014 Agreement: Term Loan A, due June 2019	494,375		494,375		500,000		500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115		395,858		396,080		390,436
Securitization of accounts receivable	294,000		294,000		334,000		334,000

The carrying amounts shown in the table (other than restricted investments and securitization of accounts receivable) are included in the consolidated balance sheets in "Current portion of long-term debt" and "Long-term debt, less current portion."

Recurring Fair Value Measurements

As of March 31, 2015 and December 31, 2014, interest rate swaps were the only major category of liabilities included in the Company's consolidated balance sheets at estimated fair value that were measured on a recurring basis. The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of these instruments (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
As of March 31, 2015
Interest rate swaps	$	4,233	$	—	$	4,233	$	—
As of December 31, 2014
Interest rate swaps	$	6,109	$	—	$	6,109	$	—

As of March 31, 2015 and December 31, 2014, there were no assets included in the Company's consolidated balance sheets at estimated fair value that were measured on a recurring basis.

Nonrecurring Fair Value Measurements

The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs	Level 2 Inputs	Level 3 Inputs		Total Gains (Losses)
As of March 31, 2015
Note receivable	$	—			$	—	$	(1,480	)
As of December 31, 2014
Other assets	$	—			$	—	$	(2,308	)

In September 2013, the Company agreed to advance up to $2.3 million, pursuant to an unsecured promissory note, to an independent fleet contractor that transported freight on Swift's behalf. In March 2015, management became aware that the independent contractor violated various covenants outlined in the unsecured promissory note, which created an event of default that made the principal and accrued interest immediately due and payable. As a result of this event of default, as well as an overall decline in the independent contractor's financial condition, management re-evaluated the fair value of the unsecured promissory note. As of March 31, 2015, management determined that the remaining balance due from the independent contractor to the Company was not collectible, which resulted in a $1.5 million pre-tax adjustment that was recorded in "Non-cash impairments of non-operating assets" in the Company's consolidated income statements.

Fair value of assets measured on a nonrecurring basis as of December 31, 2014, represent certain operations software that was replaced, and for which the carrying value was determined to be fully impaired during the three months ended September 30, 2014.

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Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Revenue, excluding fuel surcharge revenue	$ 894,864	$ 816,999
Fuel Surcharge Revenue	120,280	191,447
Operating revenue	1,015,144	1,008,446
Operating expenses:
Salaries, wages and employee benefits	261,654	229,366
Operating supplies and expenses	94,204	80,825
Fuel	106,907	156,022
Purchased transportation	288,811	319,169
Operating Leases, Rent Expense, Net	61,975	51,719
Insurance and claims	44,307	42,448
Depreciation and amortization of property and equipment	56,927	56,175
Amortization of intangibles	4,204	4,204
Gain on disposal of property and equipment	(3,932)	(3,159)
Communication and utilities	7,499	7,170
Operating taxes and licenses	17,588	18,337
Total operating expenses	940,144	962,276
Operating income	75,000	46,170
Other (income) expenses:
Interest expense	10,388	23,225
Derivative interest expense	2,793	1,653
Interest income	(587)	(766)
Loss on debt extinguishment	0	2,913
Non-cash impairments of non-operating assets	1,480	0
Other	(605)	(864)
Total other expenses (Income), net	13,469	26,161
Income before income taxes	61,531	20,009
Income tax expense (benefit)	23,691	7,704
Net income	$ 37,840	$ 12,305
Basic earnings per share	$ 0.27	$ 0.09
Diluted earnings per share	$ 0.26	$ 0.09
Shares used in per share calculations
Basic	142,199	140,981
Diluted	143,955	143,018

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Accounts Receivable Securitization

3 Months Ended

Mar. 31, 2015

Transfers and Servicing [Abstract]

Accounts Receivable Securitization

Accounts Receivable Securitization

In June 2013, SRCII entered into the 2013 RSA with the Purchasers to replace the Company's prior 2011 RSA, and to sell, on a revolving basis, undivided interests in the Company’s accounts receivable. Pursuant to the 2013 RSA, the Company’s receivable originator subsidiaries sell all of their eligible accounts receivable to SRCII, which in turn sells a variable percentage ownership interest in its accounts receivable to the Purchasers. On September 26, 2014, the Company exercised an accordion option, increasing the maximum borrowing capacity on the 2013 RSA from $325.0 million to $375.0 million. The Company entered into an amendment to the 2013 RSA, effective March 31, 2015, to clarify when the Company’s consent is required in conjunction with a Purchaser’s sale or assignment of any portion of its purchased interest in the receivables and to amend certain of the performance ratios to provide increased flexibility to the Company in managing its receivables.

The facility qualifies for treatment as a secured borrowing under ASC Topic 860, Transfers and Servicing. As such, outstanding amounts are classified as liabilities on the Company’s consolidated balance sheets in "Securitization of accounts receivable."

As of March 31, 2015 and December 31, 2014, interest accrues on the aggregate principal balance at a rate of 0.8% and 0.8%, respectively. Program fees and unused commitment fees are recorded in interest expense in the Company's consolidated income statements. The Company incurred program fees of $1.0 million and $0.8 million, during the three months ended March 31, 2015 and 2014, respectively.

The 2013 RSA is subject to customary fees and contains various customary affirmative and negative covenants, representations and warranties, and default and termination provisions. Collections on the underlying receivables by the Company are held for the benefit of SRCII and the Purchasers in the facility and are unavailable to satisfy claims of the Company and its subsidiaries.

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Intangible Assets

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 4 — Goodwill and Other Intangible Assets

There were no goodwill impairments recorded during the three months ended March 31, 2015 or 2014. Intangible assets as of March 31, 2015 and December 31, 2014 were as follows (in thousands):

	March 31, 2015			December 31, 2014
Customer Relationships:
Gross carrying value	$	275,324		$	275,324
Accumulated amortization	(160,632		)	(156,428		)
Trade Name:
Gross carrying value	181,037			181,037
Intangible assets, net	$	295,729		$	299,933

The following table presents amortization of intangibles for the three months ended March 31, 2015 and 2014, related to intangible assets recognized in conjunction with the 2007 going private transaction and the previous intangible assets existing prior to the 2007 going private transaction (in thousands):

	Three Months Ended March 31,
	2015		2014
Amortization of intangible assets related to 2007 going private transaction	$	3,912	$	3,912
Amortization related to intangible assets existing prior to the 2007 going private transaction	292		292
Amortization of intangibles	$	4,204	$	4,204

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Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Intangible Assets

Intangible assets as of March 31, 2015 and December 31, 2014 were as follows (in thousands):

	March 31, 2015			December 31, 2014
Customer Relationships:
Gross carrying value	$	275,324		$	275,324
Accumulated amortization	(160,632		)	(156,428		)
Trade Name:
Gross carrying value	181,037			181,037
Intangible assets, net	$	295,729		$	299,933

Amortization expense related to the 2007 going private transaction

The following table presents amortization of intangibles for the three months ended March 31, 2015 and 2014, related to intangible assets recognized in conjunction with the 2007 going private transaction and the previous intangible assets existing prior to the 2007 going private transaction (in thousands):

	Three Months Ended March 31,
	2015		2014
Amortization of intangible assets related to 2007 going private transaction	$	3,912	$	3,912
Amortization related to intangible assets existing prior to the 2007 going private transaction	292		292
Amortization of intangibles	$	4,204	$	4,204

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Earnings Per Share

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share

Earnings per Share

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding (in thousands):

	Three Months Ended March 31,
	2015	2014
Basic weighted average common shares outstanding	142,199	140,981
Dilutive effect of stock options	1,756	2,037
Diluted weighted average common shares outstanding	143,955	143,018

Option exercise prices were greater than the average market price of the common shares during the three months ended March 31, 2015 and 2014. As such, there were no anti-dilutive shares to be excluded from the calculation of diluted earnings per share.

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Purchase Commitments Purchase Commitments Subsection (Notes)

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments Disclosure [Text Block]

Purchase Commitments

As of March 31, 2015, the Company had commitments outstanding to acquire revenue equipment for the remainder of 2015 for approximately $705.5 million ($569.4 million of which were tractor commitments) and in 2016 to 2017 for approximately $380.5 million (all of which were tractor commitments). The Company generally has the option to cancel tractor purchase orders with 60 to 90 days notice prior to the scheduled production, although the notice period has lapsed for approximately 31.3% of the tractor commitments outstanding as of March 31, 2015. These purchases are expected to be financed by the combination of operating leases, capital leases, debt, proceeds from sales of existing equipment and cash flows from operations.

As of March 31, 2015, the Company had outstanding purchase commitments of approximately $8.6 million for facilities and non-revenue equipment. Factors such as costs and opportunities for future terminal expansions may change the amount of such expenditures.

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Debt And Financing Transactions

3 Months Ended

Mar. 31, 2015

Debt Disclosure [Abstract]

Debt And Financing Transactions

Debt and Financing

Other than the Company’s accounts receivable securitization, as discussed in Note 5, and its outstanding capital lease obligations as discussed in Note 7, the Company's long-term debt consisted of the following (in thousands):

	March 31, 2015			December 31, 2014
2014 Agreement: Term loan A, due June 2019	$	494,375		$	500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115			396,080
Other	10,133			6,980
Long-term debt	899,623			903,060
Less: current portion of long-term debt	(32,581		)	(31,445		)
Long-term debt, less current portion	$	867,042		$	871,615
Revolving line of credit (1)	$	—		$	57,000
Long-term debt, including revolving line of credit	$	899,623		$	960,060

____________

(1) The Company had outstanding letters of credit, primarily related to workers' compensation and self-insurance liabilities, of $100.3 million at March 31, 2015 and $100.3 million at December 31, 2014, under the revolving line of credit.

Credit Agreement

The Company entered into the 2014 Agreement on June 9, 2014, which included a delayed-draw first lien Term Loan A tranche, a first lien Term Loan B tranche, and a revolving credit line. The following table presents the key terms of the 2014 Agreement (dollars in thousands):

Description	Term Loan A	Term Loan B	Revolver (2)
Maximum borrowing capacity	$500,000	$400,000	$450,000
Final maturity date	June 9, 2019	June 9, 2021	June 9, 2019
Interest rate base	LIBOR	LIBOR	LIBOR
LIBOR floor	—%	0.75%	—%
Interest rate minimum margin (1)	1.50%	2.75%	1.50%
Interest rate maximum margin (1)	2.25%	3.00%	2.25%
Minimum principal payment - amount (3)	$5,625	$1,000	$—
Minimum principal payment - frequency	Quarterly	Quarterly	Once
Minimum principal payment - commencement date (3)	March 31, 2015	June 30, 2014	June 30, 2019

(1) Interest rate margins for the Term Loan A, Term Loan B and Revolver are based on the Company's consolidated leverage ratio. As of March 31, 2015, interest accrues at 1.93% and 3.75% on the Term Loan A and Term Loan B, respectively. As of December 31, 2014, interest accrued at 2.16% and 3.75% on the Term Loan A and Term Loan B, respectively. Prior to January 1, 2015, the minimum and maximum interest rate margins on the Term Loan B were both 3.00%.

(2) The commitment fee for the unused portion of the Revolver is also based on the Company's consolidated leverage ratio, and ranges from 0.25% to 0.35%. As of March 31, 2015, commitment fees on the unused portion of the Revolver accrue at 0.25% and outstanding letter of credit fees accrue at 1.75%. As of December 31, 2014, commitment fees on the unused portion of the Revolver accrued at 0.30% and outstanding letter of credit fees accrued at 2.00%.    

(3) Commencing in March 2017, the minimum quarterly principal payment amount on the Term Loan A is $11.3 million.

The Revolver and Term Loan A of the 2014 Agreement contain certain financial covenants with respect to a maximum leverage ratio and a minimum consolidated interest coverage ratio. The 2014 Agreement provides flexibility regarding the use of proceeds from asset sales, payment of dividends, stock buybacks, and equipment financing. In addition to the financial covenants, the 2014 Agreement includes customary events of default, including a change in control default and certain affirmative and negative covenants, including, but not limited to, restrictions, subject to certain exceptions, on incremental indebtedness, asset sales, certain restricted payments (including dividends), certain incremental investments or advances, transactions with affiliates, engaging in additional business activities, and prepayments of certain other indebtedness.

Borrowings under the credit facility are secured by substantially all of the assets of the Company and are guaranteed by Swift Transportation Company, IEL, Central Refrigerated Transportation, LLC and its subsidiaries, Swift Transportation Co., LLC and its domestic subsidiaries other than its captive insurance subsidiaries, driver academy subsidiary, and its bankruptcy-remote special purpose subsidiary.

Deferred Loan Costs and Loss on Debt Extinguishment

Deferred loan costs, reported in "Other assets" in the Company's consolidated balance sheets, were $9.7 million and $10.4 million, as of March 31, 2015 and December 31, 2014, respectively.

For the three months ended March 31, 2015, the Company did not incur any loss on debt extinguishment. For the three months ended March 31, 2014, the Company incurred a $2.9 million loss on debt extinguishment related to the Company's repurchase of its Senior Notes.

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Capital Leases

3 Months Ended

Mar. 31, 2015

Leases [Abstract]

Capital Leases

Leases

The Company finances a portion of its revenue equipment under capital and operating leases and certain terminals under operating leases.

Capital - The Company’s capital leases are typically structured with balloon payments at the end of the lease term equal to the residual value the Company is contracted to receive from certain equipment manufacturers upon sale or trade back to the manufacturers. If the Company does not receive proceeds of the contracted residual value from the manufacturer, the Company is still obligated to make the balloon payment at the end of the lease term. Certain leases contain renewal or fixed price purchase options. The present value of obligations under capital leases is included under "Current portion of capital lease obligations" and "Capital lease obligations, less current portion" in the consolidated balance sheets. As of March 31, 2015, the leases were collateralized by revenue equipment with a cost of $266.7 million and accumulated amortization of $71.6 million. As of December 31, 2014, the leases were collateralized by revenue equipment with a cost of $270.6 million and accumulated amortization of $68.0 million. Amortization of the equipment under capital leases is included in "Depreciation and amortization of property and equipment" in the Company’s consolidated income statements.

Operating - Rent expense related to operating leases was $62.0 million and $51.7 million for the three months ended March 31, 2015 and 2014, respectively.

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Contingencies

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

The Company is involved in certain claims and pending litigation primarily arising in the normal course of business. The majority of these claims relate to workers' compensation, auto collision and liability, and physical damage and cargo damage. The Company expenses legal fees as incurred and accrues for the uninsured portion of contingent losses from these and other pending claims when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Based on the knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of claims and pending litigation, taking into account existing reserves, will not have a material adverse effect on the Company. Moreover, the results of complex legal proceedings are difficult to predict and the Company’s view of these matters may change in the future as the litigation and events related thereto unfold.

For certain cases described below, management is unable to provide a meaningful estimate of the possible loss or range of loss because, among other reasons, (i) the proceedings are in various stages; (ii) damages have not been sought; (iii) damages are unsupported and/or exaggerated; (iv) there is uncertainty as to the outcome of pending appeals; and/or (v) there are significant factual issues to be resolved. For these cases, however, management does not believe, based on currently available information, that the outcomes of these proceedings will have a material adverse effect on our financial condition, though the outcomes could be material to our operating results for any particular period, depending, in part, upon the operating results for such period.

Arizona Owner-operator Class Action Litigation

On January 30, 2004, a class action lawsuit was filed by Leonel Garza on behalf of himself and all similarly situated persons against Swift Transportation: Garza v. Swift Transportation Co., Inc., Case No. CV7-472 ("the Garza Complaint"). The putative class originally involved certain owner-operators who contracted with the Company under a 2001 Contractor Agreement that was in place for one year. The putative class is alleging that the Company should have reimbursed owner-operators for actual miles driven rather than the contracted and industry standard remuneration based upon dispatched miles. The trial court denied plaintiff’s petition for class certification, the plaintiff appealed and on August 6, 2008, the Arizona Court of Appeals issued an unpublished Memorandum Decision reversing the trial court’s denial of class certification and remanding the case back to the trial court. On November 14, 2008, the Company filed a petition for review to the Arizona Supreme Court regarding the issue of class certification as a consequence of the denial of the Motion for Reconsideration by the Court of Appeals. On March 17, 2009, the Arizona Supreme Court granted the Company’s petition for review, and on July 31, 2009, the Arizona Supreme Court vacated the decision of the Court of Appeals opining that the Court of Appeals lacked automatic appellate jurisdiction to reverse the trial court’s original denial of class certification and remanded the matter back to the trial court for further evaluation and determination. Thereafter, the plaintiff renewed the motion for class certification and expanded it to include all persons who were employed by Swift as employee drivers or who contracted with Swift as owner-operators on or after January 30, 1998, in each case who were compensated by reference to miles driven. On November 4, 2010, the Maricopa County trial court entered an order certifying a class of owner-operators and expanding the class to include employees. Upon certification, the Company filed a motion to compel arbitration, as well as filing numerous motions in the trial court urging dismissal on several other grounds including, but not limited to the lack of an employee as a class representative, and because the named owner-operator class representative only contracted with the Company for a three-month period under a one-year contract that no longer exists. In addition to these trial court motions, the Company also filed a petition for special action with the Arizona Court of Appeals, arguing that the trial court erred in certifying the class because the trial court relied upon the Court of Appeals ruling that was previously overturned by the Arizona Supreme Court. On April 7, 2011, the Arizona Court of Appeals declined jurisdiction to hear this petition for special action and the Company filed a petition for review to the Arizona Supreme Court. On August 31, 2011, the Arizona Supreme Court declined to review the decision of the Arizona Court of Appeals. In April 2012, the trial court issued the following rulings with respect to certain motions filed by Swift: (1) denied Swift’s motion to compel arbitration; (2) denied Swift’s request to decertify the class; (3) granted Swift’s motion that there is no breach of contract; and (4) granted Swift’s motion to limit class size based on statute of limitations. On November 13, 2014, the court denied plaintiff's motion to add new class representatives for the employee class and therefore the employee class remains without a plaintiff class representative. On March 18, 2015, the court denied Swift's two motions for summary judgment 1) to dismiss any claims related to the employee class since there is no class representative; and 2) to dismiss plaintiff's claim of breach of a duty of good faith and fair dealing. Swift filed a motion to decertify the entire class which remains pending before the court. The matter is scheduled for trial in October 2015. The Company intends to continue to pursue all available appellate relief supported by the record, which the Company believes demonstrates that the class is improperly certified and, further, that the claims raised have no merit. The Company retains all of its defenses against liability and damages. The final disposition of this case and the impact of such final disposition cannot be determined at this time.

Ninth Circuit Owner-operator Misclassification Class Action Litigation

On December 22, 2009, a class action lawsuit was filed against Swift Transportation and IEL: Virginia VanDusen, John Doe 1 and Joseph Sheer, individually and on behalf of all other similarly situated persons v. Swift Transportation Co., Inc., Interstate Equipment Leasing, Inc., Jerry Moyes, and Chad Killebrew, Case No. 9-CIV-10376 filed in the United States District Court for the Southern District of New York ("the Sheer Complaint"). The putative class involves owner-operators alleging that Swift Transportation misclassified owner-operators as independent contractors in violation of the federal Fair Labor Standards Act ("FLSA"), and various New York and California state laws and that such owner-operators should be considered employees. The lawsuit also raises certain related issues with respect to the lease agreements that certain owner-operators have entered into with IEL. At present, in addition to the named plaintiffs, approximately 200 other current or former owner-operators have joined this lawsuit. Upon Swift’s motion, the matter has been transferred from the United States District Court for the Southern District of New York to the United States District Court in Arizona. On May 10, 2010, the plaintiffs filed a motion to conditionally certify an FLSA collective action and authorize notice to the potential class members. On September 23, 2010, plaintiffs filed a motion for a preliminary injunction seeking to enjoin Swift and IEL from collecting payments from plaintiffs who are in default under their lease agreements and related relief. On September 30, 2010, the District Court granted Swift’s motion to compel arbitration and ordered that the class action be stayed pending the outcome of arbitration. The District Court further denied plaintiff’s motion for preliminary injunction and motion for conditional class certification. The District Court also denied plaintiff’s request to arbitrate the matter as a class.

The plaintiff filed a petition for a writ of mandamus to the Ninth Circuit Court of Appeals asking that the District Court’s September 30, 2010 order be vacated. On July 27, 2011, the Ninth Circuit Court of Appeals denied the plaintiff’s petition for writ of mandamus and thereafter the District Court denied plaintiff’s motion for reconsideration and certified its September 30, 2010 order. The plaintiffs filed an interlocutory appeal to the Ninth Circuit Court of Appeals to overturn the District Court’s September 30, 2010 order to compel arbitration, alleging that the agreement to arbitrate is exempt from arbitration under Section 1 of the Federal Arbitration Act (“FAA”) because the class of plaintiffs allegedly consists of employees exempt from arbitration agreements. On November 6, 2013, the Ninth Circuit Court of Appeals reversed and remanded, stating its prior published decision, “expressly held that a district court must determine whether an agreement for arbitration is exempt from arbitration under Section 1 of the FAA as a threshold matter." As a consequence of this determination by the ninth Circuit Court of Appeals being different from a decision of the Eighth Circuit Court of Appeals on a similar issue, on February 4, 2014, the Company filed a petition for writ of certiorari to the United States Supreme Court to address whether the district court or arbitrator should determine whether the contract is an employment contract exempt from Section 1 of the Federal Arbitration Act. On June 16, 2014, the United States Supreme Court denied the Company’s petition for writ of certiorari. The matter remains pending in the District Court and is currently in discovery. The Company intends to vigorously defend against any proceedings. The final disposition of this case and the impact of such final disposition cannot be determined at this time.

California Wage, Meal and Rest Employee Class Actions

On March 22, 2010, a class action lawsuit was filed by John Burnell, individually and on behalf of all other similarly situated persons against Swift Transportation: John Burnell and all others similarly situated v. Swift Transportation Co., Inc., Case No. CIVDS 1004377 filed in the Superior Court of the State of California, for the County of San Bernardino ("the Burnell Complaint"). On September 3, 2010, upon motion by Swift, the matter was removed to the United States District Court for the Central District of California, Case No. EDCV10-809-VAP. The putative class includes drivers who worked for Swift during the four years preceding the date of filing alleging that Swift failed to pay the California minimum wage, failed to provide proper meal and rest periods and failed to timely pay wages upon separation from employment. The Burnell Complaint was subject to a stay of proceedings pending determination of similar issues in a case unrelated to Swift, Brinker v. Hohnbaum, which was then pending before the California Supreme Court. A ruling was entered in the Brinker matter and in August 2012 the stay in the Burnell Complaint was lifted. On April 9, 2013 the Company filed a motion for judgment on the pleadings requesting dismissal of plaintiff's claims related to alleged meal and rest break violations under the California Labor Code alleging that such claims are preempted by the Federal Aviation Administration Authorization Act. On May 29, 2013, the U.S. District Court for the Central District of California granted the Company's motion for judgment on the pleadings and dismissed plaintiff's claims that are based on alleged violations of meal and rest periods set forth in the California Labor Code. Plaintiff has appealed. Minimum wage claims (specifically that pay per-mile fails to compensate drivers for non-driving-related services), timeliness of such pay and the issue of class certification remain pending.

On April 5, 2012, the Company was served with an additional class action complaint alleging facts similar to those as set forth in the Burnell Complaint. This class action is James R. Rudsell, on behalf of himself and all others similarly situated v. Swift Transportation Co. of Arizona, LLC and Swift Transportation Company, Case No. CIVDS 1200255, in the Superior Court of California for the County of San Bernardino ("the Rudsell Complaint"). The Rudsell Complaint has been stayed pending a resolution in the Burnell Complaint.

The issue of class certification must first be resolved before the court will address the merits of the case, and the Company retains all of its defenses against liability and damages pending a determination of class certification. The Company intends to vigorously defend certification of the class in both matters, as well as the merits of these matters, should the classes be certified. The final disposition of both cases and the impact of such final dispositions of these cases cannot be determined at this time. There have been no significant developments to these cases since December 31, 2014.

California Wage and Hour Class Action

On September 25, 2014, a class action lawsuit was filed by Lawrence Peck on behalf of himself and all other similarly situated persons against Swift Transportation: Peck v. Swift Transportation Co. Arizona, LLC in the Superior Court of California, County of Riverside ("the Peck Complaint"). The putative class includes current and former non-exempt employee truck drivers who performed services in California within the four-year statutory period alleging that Swift failed to pay for all hours worked (specifically that pay-per-mile fails to compensate drivers for non-driving related services), failed to pay overtime, failed to properly reimburse work-related expenses, failed to timely pay wages and failed to provide accurate wage statements.

Peck is currently stayed, pending a resolution in the Burnell and Rudsell cases, based on the similarity of the Peck claims to the claims in those earlier filed cases. The final disposition of the case and the impact of such final disposition cannot be determined at this time.

Washington Overtime Class Action

On September 9, 2011, a class action lawsuit was filed by Troy Slack and several other drivers on behalf of themselves, and all similarly situated persons, against Swift Transportation: Troy Slack, et al v. Swift Transportation Co. of Arizona, LLC and Swift Transportation Corporation in the State Court of Washington, Pierce County ("the Slack Complaint"). The Slack Complaint was removed to federal court on October 12, 2011, case number 11-2-114380. The putative class includes all current and former Washington State-based employee drivers during the three-year statutory period prior to the filing of the lawsuit through to present and alleges that they were not paid minimum wage and overtime in accordance with Washington State law and that they suffered unlawful deductions from wages. On November 23, 2013, the court entered an order on plaintiffs' motion to certify the class. The court only certified the class as it pertains to "dedicated" drivers and did not certify any other class, including any class related to over the road drivers (“OTR Drivers”). The parties dispute the definition of "dedicated" as used by the court and a class notice has not yet been issued. The matter is now anticipated to move into discovery. The Company retains all of its defenses against liability and damages. The Company intends to vigorously defend the merits of these claims and to challenge certification. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.

Utah Collective and Individual Arbitration

On June 1, 2012, a collective and class action complaint was filed by Gabriel Cilluffo, Kevin Shire and Bryan Ratterree individually and on behalf of themselves and all similarly situated persons against Central Refrigerated Services, Inc., Central Leasing, Inc., Jon Isaacson, and Jerry Moyes: Gabriel Cilluffo, Kevin Shire and Bryan Ratterree individually and on behalf themselves and all similarly situated persons v. Central Refrigerated Services, Inc., Central Leasing, Inc., Jon Isaacson, and Jerry Moyes in the United States District Court for the Central District of California, Case No. ED CV 12-00886 ("the Cilluffo Complaint"). The putative class involves owner-operators alleging that Central misclassified owner-operators as independent contractors in violation of the FLSA, and that such owner-operators should be considered employees. The lawsuit also raises a claim of forced labor and state law contractual claims. On September 24, 2012, the California District Court ordered that the FLSA claim proceed to collective arbitration under the Utah Uniform Arbitration Act (“UUAA”) and not the FAA. The September 24, 2012 order directed the arbitrator to determine the validity of proceeding as a collective arbitration under the UUAA, and then if the arbitrator determines that such collective action is permitted, then the arbitrator is to consider the plaintiff’s FLSA claim. On November 8, 2012, the California District Court entered a clarification order clarifying that the plaintiff’s FLSA claim was to proceed to collective arbitration under the UUAA, but the plaintiff’s forced labor claim and state law contractual claims were to proceed as individual arbitrations for those plaintiffs seeking to pursue those specific claims. Central filed a motion for reconsideration and a motion for interlocutory appeal of the California District Court’s orders, both of which were denied and the claims are proceeding to collective and individual arbitration as originally ordered. On December 9, 2013, the arbitrator determined that the issue of misclassification as it relates to the FLSA will proceed as a collective arbitration; however, the plaintiffs forced labor claim and state law claims of contractual misrepresentation and breach of contract must proceed on an individual arbitration basis and not as a class. The matter is currently in discovery.

Central intends to vigorously defend collective arbitration in the Cilluffo Complaint, as well as the merits of the FLSA claim and any individual arbitration matters that are filed, and proceed on the forced labor and state contract law claims. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.

Environmental Notice

On April 17, 2009, the Company received a notice from the Lower Willamette Group ("LWG"), advising that there was a total of 250 potentially responsible parties ("PRPs"), with respect to alleged environmental contamination of the Lower Willamette River in Portland, Oregon designated as the Portland Harbor Superfund site ("the Site"), and that as a previous landowner at the Site, the Company was asked to join a group of 60 PRPs and proportionately contribute to (i) reimbursement of funds expended by LWG to investigate environmental contamination at the Site and (ii) remediation costs of the same, rather than be exposed to potential litigation. Although the Company does not believe it contributed any contaminants to the Site, the Company was at one time the owner of property at the Site and the Comprehensive Environmental Response, Compensation and Liability Act imposes a standard of strict liability on property owners with respect to environmental claims. Notwithstanding this standard of strict liability, management believes the Company's potential proportionate exposure to be minimal and not material. No formal complaint has been filed in this matter. The Company’s pollution liability insurer has been notified of this potential claim. Management does not believe the outcome of this matter is likely to have a material adverse effect on Swift. However, the final disposition of this matter and the impact of such final disposition cannot be determined at this time. There have been no significant developments pertaining to this matter since December 31, 2014.

Other Environmental

The Company's tractors and trailers are involved in motor vehicle accidents, experience damage, mechanical failures and cargo issues as an incidental part of its normal ordinary course of operations.  From time to time, these matters result in the discharge of diesel fuel, motor oil or other hazardous materials into the environment.  Depending on local regulations and who is determined to be at fault, the Company is sometimes responsible for the clean-up costs associated with these discharges.  As of March 31, 2015, the Company's estimate for its total legal liability for all such clean-up and remediation costs was approximately $0.4 million in the aggregate for all current and prior year claims.

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Accounts Receivable Securitization (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Sep. 26, 2014
Servicing Liabilities at Fair Value [Line Items]
Securitization of Accounts Receivable	$ 294,000,000		$ 334,000,000
2013 RSA Borrowing [Member]
Servicing Liabilities at Fair Value [Line Items]
RSA, program fee	1,000,000
2011 RSA Borrrowing [Member]
Servicing Liabilities at Fair Value [Line Items]
RSA, program fee		800,000
2013 RSA [Member]
Servicing Liabilities at Fair Value [Line Items]
Receivables Sale Agreement Borrowing Capacity			$ 375,000,000	$ 325,000,000
Interest rate	0.80%
Debt Instrument, Interest Rate During Period			0.80%

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Segment Information

3 Months Ended

Mar. 31, 2015

Segment Reporting [Abstract]

Segment Information

Segments and Geography

Segment Information

The Company’s four reportable operating segments are Truckload, Dedicated, Central Refrigerated and Intermodal.

Truckload— The Truckload segment consists of one-way movements over irregular routes throughout the United States, Mexico, and Canada. This service utilizes both company and owner-operator tractors with dry van, flatbed, and other specialized trailing equipment.

Dedicated— Through the Dedicated segment, the Company devotes use of equipment to specific customers and offers tailored solutions under long-term contracts. This dedicated segment utilizes refrigerated, dry van, flatbed and other specialized trailing equipment.

Central Refrigerated— This segment represents the core operations of Central and primarily consists of shipments for customers that require temperature-controlled trailers. These shipments include one-way movements over irregular routes, as well as dedicated truck operations.

Intermodal— The Intermodal segment includes revenue generated by moving freight over the rail in the Company's containers and other trailing equipment, combined with revenue for drayage to transport loads between the railheads and customer locations.

Non-reportable Segment— The other non-reportable segment includes the Company's logistics and freight brokerage services, as well as support services provided by its subsidiaries to customers and owner-operators, including repair and maintenance shop services, equipment leasing, and insurance. Intangible amortization related to the 2007 going-private transaction is also included in this other non-reportable segment.

Other Intersegment Transactions—Certain operating segments provide transportation and related services for other affiliates outside their reportable segment. Revenues for such services are based on negotiated rates, which we believe approximate fair value, and are reflected as revenues of the billing segment. These rates are adjusted from time to time based on market conditions. Such intersegment revenues and expenses are eliminated in our consolidated results.

Set forth in the tables below is certain financial information with respect to the Company’s reportable segments (in thousands):

	Operating Revenue
	Three Months Ended March 31,
	2015			2014
Truckload	$	538,341		$	553,057
Dedicated	217,775			193,653
Central Refrigerated	95,568			106,763
Intermodal	90,354			91,313
Subtotal	942,038			944,786
Non-reportable segment	91,622			75,666
Intersegment eliminations	(18,516		)	(12,006		)
Consolidated operating revenue	$	1,015,144		$	1,008,446

	Operating Income (Loss)
	Three Months Ended March 31,
	2015			2014
Truckload	$	56,854		$	31,907
Dedicated	14,345			11,530
Central Refrigerated	4,799			2,420
Intermodal	(1,243		)	(926		)
Subtotal	74,755			44,931
Non-reportable segment	245			1,239
Consolidated operating income	$	75,000		$	46,170

	Depreciation and Amortization Expense
	Three Months Ended March 31,
	2015		2014
Truckload	$	28,610	$	30,245
Dedicated	14,273		12,405
Central Refrigerated	3,294		3,106
Intermodal	3,252		2,368
Subtotal	49,429		48,124
Non-reportable segment	7,498		8,051
Consolidated depreciation and amortization expense	$	56,927	$	56,175

Geographical Information

In aggregate, operating revenue from the Company's foreign operations was less than 5.0% of consolidated operating revenue for the three months ended March 31, 2015 and 2014. Additionally, long-lived assets on the balance sheets of the Company's foreign subsidiaries were less than 5.0% of consolidated Total assets as of March 31, 2015 and December 31, 2014.

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Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value Measurements, Nonrecurring [Table Text Block]

The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs	Level 2 Inputs	Level 3 Inputs		Total Gains (Losses)
As of March 31, 2015
Note receivable	$	—			$	—	$	(1,480	)
As of December 31, 2014
Other assets	$	—			$	—	$	(2,308	)

Carrying Amounts And Estimated Fair Values Of Financial Instruments

The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015				December 31, 2014
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Restricted investments	$	18,286	$	18,290	$	24,510	$	24,502
Financial Liabilities:
2014 Agreement: Term Loan A, due June 2019	494,375		494,375		500,000		500,000
2014 Agreement: Term Loan B, net of $885 and $920 OID as of March 31, 2015 and December 31, 2014, respectively	395,115		395,858		396,080		390,436
Securitization of accounts receivable	294,000		294,000		334,000		334,000

Liabilities That Were Measured At Estimated Fair Value On Recurring Basis

As of March 31, 2015 and December 31, 2014, interest rate swaps were the only major category of liabilities included in the Company's consolidated balance sheets at estimated fair value that were measured on a recurring basis. The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of these instruments (in thousands):

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
As of March 31, 2015
Interest rate swaps	$	4,233	$	—	$	4,233	$	—
As of December 31, 2014
Interest rate swaps	$	6,109	$	—	$	6,109	$	—

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Derivative Financial Instruments (Classification Of Gains And Losses On Interest Rate Derivative Contracts Designated As Hedging Instruments) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	$ (945)	$ (339)
Derivative interest expense	2,793	1,653
Income tax expense (benefit)	23,691	7,704
Net income	37,840	12,305
Amount of loss reclassified from accumulated OCI into income as "Derivative interest expense" (effective portion)	1,848	1,314
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net income	1,137	808
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative interest expense	1,848	1,314
Income tax expense (benefit)	$ (711)	$ 506

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Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Statement Of Comprehensive Income [Abstract]
Net income	$ 37,840	$ 12,305
Accumulated losses on derivatives reclassified to derivative interest expense	1,848	1,314
Other Comprehensive Income (Loss), before Tax	1,848	1,314
Income tax effect of items within other comprehensive income	(711)	(506)
Other comprehensive income, net of income taxes	1,137	808
Total comprehensive income	$ 38,977	$ 13,113

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Investments

3 Months Ended

Mar. 31, 2015

Schedule of Investments [Abstract]

Investments

Restricted Investments

The following table presents the cost or amortized cost, gross unrealized gains and temporary losses, and estimated fair value of the Company’s restricted investments as of March 31, 2015 and December 31, 2014 (in thousands): 

	March 31, 2015
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	16,861	$	6	$	(3	)	$	16,864
Negotiable certificates of deposit	1,425		1		—			1,426
Total restricted investments	$	18,286	$	7	$	(3	)	$	18,290
	December 31, 2014
			Gross Unrealized
	Cost or Amortized Cost		Gains		Temporary Losses			Estimated Fair Value
United States corporate securities	$	20,892	$	2	$	(10	)	$	20,884
Foreign corporate securities	1,503		—		—			1,503
Negotiable certificates of deposit	2,115		—		—			2,115
Total restricted investments	$	24,510	$	2	$	(10	)	$	24,502

As of March 31, 2015, the contractual maturities of the restricted investments were one year or less. There were 11 securities and 24 securities that were in an unrealized loss position for less than twelve months as of March 31, 2015 and December 31, 2014, respectively. The Company did not recognize any impairment losses for the three months ended March 31, 2015 or 2014.

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Share Attributable To Stockholders

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding (in thousands):

	Three Months Ended March 31,
	2015	2014
Basic weighted average common shares outstanding	142,199	140,981
Dilutive effect of stock options	1,756	2,037
Diluted weighted average common shares outstanding	143,955	143,018

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Purchase Commitments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
Long-term Purchase Commitment [Line Items]
Purchase Obligation, Due in Second and Third Year	$ 380.5
Percentage Of Cancel Tractor Purchase Orders	31.00%
Commitments Outstanding To Acquire Nonrevenue Equipment	8.6
Minimum [Member]
Long-term Purchase Commitment [Line Items]
Duration Of Option To Cancel Purchase Orders	60 days
Maximum [Member]
Long-term Purchase Commitment [Line Items]
Duration Of Option To Cancel Purchase Orders	90 days
Capital Addition Purchase Commitments [Member]
Long-term Purchase Commitment [Line Items]
Purchase Obligation, Due in Next Twelve Months	705.5
Capital Addition Purchase Commitments, Tractors	$ 569.4

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Income Taxes

3 Months Ended

Mar. 31, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The effective tax rate for the three months ended March 31, 2015 and March 31, 2014 was 38.5%.

The Company recognizes potential accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. Accrued interest and penalties as of March 31, 2015 were approximately $1.3 million. To the extent interest and penalties are not assessed with respect to uncertain tax positions, amounts accrued will be reduced and reflected as a reduction of the overall income tax provision. The Company does not anticipate a decrease of unrecognized tax benefits during the next twelve months.

Certain of the Company’s subsidiaries are currently under examination by the Internal Revenue Service and various state jurisdictions for tax years ranging from 2010 through 2013. At the completion of these examinations, management does not expect any adjustments that would have a material impact on the Company’s effective tax rate. Tax years 2010 through 2013 remain subject to examination.