Knight-Swift Transportation (KNX) 10-Q 7 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014	Jul. 31, 2014
		Class A Common Stock [Member]	Class B Common Stock [Member]
Entity Information [Line Items]	'	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	30-Jun-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q2	'	'
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	'	'
Entity Common Stock, Shares Outstanding	'	90,493,888	50,991,938

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$73,528	$59,178
Restricted cash	52,815	50,833
Restricted investments, held to maturity, amortized cost	25,666	25,814
Accounts receivable, net	460,358	418,436
Equipment sales receivable	436	368
Income tax refund receivable	4,314	23,704
Inventories and supplies	20,764	18,430
Assets held for sale	8,694	19,268
Prepaid taxes, licenses, insurance and other	55,256	63,958
Deferred income taxes	41,591	46,833
Current portion of notes receivable	9,001	7,210
Total current assets	752,423	734,032
Property and equipment, at cost:	'	'
Revenue and service equipment	1,955,516	1,942,423
Land	116,973	117,929
Facilities and improvements	262,157	248,724
Furniture and office equipment	66,186	61,396
Total property and equipment	2,400,832	2,370,472
Less: accumulated depreciation and amortization	950,480	922,665
Net property and equipment	1,450,352	1,447,807
Other assets	50,735	57,166
Intangible assets, net	308,340	316,747
Goodwill	253,256	253,256
Total assets	2,815,106	2,809,008
Current liabilities:	'	'
Accounts payable	141,889	118,014
Accrued liabilities	127,177	110,745
Current portion of claims accruals	75,578	75,469
Current portion of long-term debt and obligations under capital leases	85,962	75,056
Fair value of guarantees	0	366
Current portion of interest rate swaps	5,692	4,718
Total current liabilities	436,298	384,368
Revolving line of credit	99,000	17,000
Long-term debt and obligations under capital leases, less current portion	1,016,625	1,246,764
Claims accruals, less current portion	135,878	118,582
Fair value of interest rate swaps, less current portion	3,640	7,050
Deferred income taxes	454,499	484,200
Securitization of accounts receivable	319,000	264,000
Other liabilities	2,358	3,457
Total liabilities	2,467,298	2,525,421
Contingencies (note 13)	'	'
Stockholdersb equity:	'	'
Preferred stock, par value $0.01 per share; Authorized 10,000,000 shares; none issued	0	0
Additional paid-in capital	769,400	759,408
Accumulated deficit	-418,666	-471,169
Accumulated other comprehensive loss	-4,443	-6,162
Noncontrolling interest	102	102
Total stockholdersb equity	347,808	283,587
Total liabilities and stockholdersb equity	2,815,106	2,809,008
Class A Common Stock [Member]	'	'
Stockholdersb equity:	'	'
Common stock, value	905	883
Class B Common Stock [Member]	'	'
Stockholdersb equity:	'	'
Common stock, value	$510	$525

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
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	0	88,402,991
Common stock, shares outstanding	0	88,402,991
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	52,441,938	52,441,938
Common stock, shares outstanding	52,441,938	52,441,938

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Operating revenue	$1,075,898	$1,029,071	$2,084,344	$2,010,679
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	238,093	223,852	467,459	450,337
Operating supplies and expenses	84,077	78,996	164,902	151,063
Fuel	153,677	160,886	309,699	329,002
Purchased transportation	340,249	308,117	659,418	600,273
Rental expense	56,135	42,996	107,854	83,619
Insurance and claims	33,321	33,597	75,769	65,135
Depreciation and amortization of property and equipment	54,791	56,880	110,966	111,750
Amortization of intangibles	4,203	4,203	8,407	8,407
Gain on disposal of property and equipment	-8,312	-5,143	-11,471	-7,991
Communication and utilities	7,716	5,901	14,886	12,466
Operating taxes and licenses	17,926	18,520	36,263	36,634
Total operating expenses	981,876	928,805	1,944,152	1,840,695
Operating income	94,022	100,266	140,192	169,984
Other (income) expenses:	'	'	'	'
Interest expense	21,453	24,762	44,678	51,124
Derivative interest expense	1,618	532	3,271	1,094
Interest income	-692	-546	-1,458	-1,137
Loss on debt extinguishment	6,990	0	9,903	5,044
Gain on sale of real property	0	0	0	6,078
Other	-710	-1,324	-1,574	-1,884
Total other (income) expenses, net	28,659	23,424	54,820	48,163
Income before income taxes	65,363	76,842	85,372	121,821
Income tax expense (benefit)	25,165	26,963	32,869	41,650
Net income	$40,198	$49,879	$52,503	$80,171
Basic earnings per share	$0.28	$0.36	$0.37	$0.57
Diluted earnings per share	$0.28	$0.35	$0.37	$0.57
Shares used in per share calculations	'	'	'	'
Basic	141,308	139,989	141,143	139,839
Diluted	143,393	141,838	143,265	141,652

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Comprehensive Income [Abstract]	'	'	'	'
Net income	$40,198	$49,879	$52,503	$80,171
Accumulated losses on derivatives reclassified to derivative interest expense	1,482	468	2,796	959
Other comprehensive income before income taxes:	'	'	'	'
Change in fair value of interest rate swaps	0	174	0	-145
Other comprehensive income before income taxes	1,482	642	2,796	814
Income tax effect of items within other comprehensive income	-571	-244	-1,077	-218
Other comprehensive income, net of taxes	911	398	1,719	596
Total comprehensive income	$41,109	$50,277	$54,222	$80,767

Consolidated_Statements_Of_Sto

Consolidated Statements Of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interest [Member]
		Class A Common Stock [Member]	Class B Common Stock [Member]
Beginning balance at Dec. 31, 2013	$283,587,000	$883,000	$525,000	$759,408,000	($471,169,000)	($6,162,000)	$102,000
Beginning balance, shares at Dec. 31, 2013	'	88,402,991	52,441,938	'	'	'	'
Exercise of stock options	5,251,000	5,000	'	5,246,000	'	'	'
Conversion Of Class B Common Stock Into Class Common Stock	'	1,450,000	-1,450,000	'	'	'	'
Class B Stock Issued During Period Value Conversion Of Common Stock	'	15,000	-15,000	'	'	'	'
Income tax benefit from exercise of stock options	1,835,000	'	'	1,835,000	'	'	'
Exercise of stock options, shares	'	510,022	'	'	'	'	'
Grant of restricted Class A common stock	98,000	'	'	97,000	'	'	'
Grant of restricted Class A common stock, shares	'	93,069	'	'	'	'	'
Stock Issued During Period, Value, Restricted Stock Award, Gross	'	1,000	'	'	'	'	'
Shares issued under employee stock purchase plan	560,000	'	'	559,000	'	'	'
Shares issued under employee stock purchase plan, shares	'	25,020	'	'	'	'	'
Stock Issued During Period, Value, Employee Stock Purchase Plan	'	1,000	'	'	'	'	'
Net current-period other comprehensive income	1,719,000	'	'	'	'	1,719,000	'
Non-cash equity compensation	2,255,000	'	'	2,255,000	'	'	'
Net income	52,503,000	'	'	'	'	'	'
Ending balance at Jun. 30, 2014	$347,808,000	$905,000	$510,000	$769,400,000	($418,666,000)	($4,443,000)	$102,000
Ending balance, shares at Jun. 30, 2014	'	90,481,102	50,991,938	'	'	'	'

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities:	'	'
Net income	$52,503	$80,171
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization of property, equipment and intangibles	119,373	120,157
Amortization of debt issuance costs, original issue discount, and losses on terminated swaps	5,077	1,868
Gain on disposal of property and equipment less write-off of totaled tractors	-10,522	-7,585
Gain on sale of real property	0	6,078
Equity losses of investee	0	585
Deferred income taxes	-25,538	36,731
Provision for allowance for losses on accounts receivable	1,604	1,671
Loss on debt extinguishment	9,903	5,044
Non-cash equity compensation	2,353	1,498
Income effect of mark-to-market adjustment of interest rate swaps	-43	82
Interest on Central stockholders' loan receivable, pre-acquisition	0	-44
Increase (decrease) in cash resulting from changes in:	'	'
Accounts receivable	-43,526	-31,206
Inventories and supplies	-2,334	194
Prepaid expenses and other current assets	28,128	3,664
Other assets	6,556	5,194
Accounts payable, accrued and other liabilities	39,949	33,700
Net cash provided by operating activities	183,483	245,646
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	-1,982	8,984
Change in restricted investments	-113	-4,680
Proceeds from sale of property and equipment	77,088	47,261
Capital expenditures	-135,068	-164,320
Payments received on notes receivable	2,226	2,074
Expenditures on assets held for sale	-1,991	-1,614
Payments received on assets held for sale	13,603	22,773
Payments received on equipment sale receivables	385	644
Net cash used in investing activities	-45,852	-88,878
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	-707,386	-130,202
Proceeds from long-term debt	450,000	23,528
Net borrowings on revolving line of credit	82,000	7,313
Borrowings under accounts receivable securitization	95,000	80,000
Repayment of accounts receivable securitization	-40,000	-119,000
Payment of deferred loan costs	10,541	2,183
Distribution to Central stockholders, pre-acquisition	0	-1,988
Issuance of Central stockholders' loan receivable, pre-acquisition	0	-30,000
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	5,811	6,182
Income tax benefit from exercise of stock options	1,835	-504
Net cash used in financing activities	-123,281	-166,854
Net increase (decrease) in cash and cash equivalents	14,350	-10,086
Cash and cash equivalents at beginning of period	59,178	53,596
Cash and cash equivalents at end of period	73,528	43,510
Cash paid during the period for:	'	'
Interest	49,331	48,823
Income taxes	22,041	5,003
Non-cash investing activities:	'	'
Equipment sales receivables	453	896
Equipment purchase accrual	19,916	28,230
Notes receivable from sale of assets	4,015	1,577
Non-cash financing activities:	'	'
Accrued deferred loan costs	1,433	0
Capital lease additions	38,043	60,111
Insurance premium note payable	$37	$0

Basis_Of_Presentation

Basis Of Presentation	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Basis Of Presentation	'
	Basis of Presentation
	Swift Transportation Company is the holding company for Swift Transportation Co., LLC (a Delaware limited liability company) and its subsidiaries (collectively, “Swift Transportation Co.”), a truckload carrier headquartered in Phoenix, Arizona, and Interstate Equipment Leasing, LLC (“IEL”) (all the foregoing being, collectively, “Swift” or the “Company”).
	As of June 30, 2014, the Company operated a national terminal network and a tractor fleet of approximately 18,600 units comprised of 13,600 tractors driven by company drivers and 5,000 owner-operator tractors, a fleet of 57,500 trailers, and 8,700 intermodal containers. The Company’s four reportable operating segments are Truckload, Dedicated, Central Refrigerated and Intermodal. In the first quarter of 2014, the Company reorganized its reportable segments to reflect management’s revised reporting structure of its lines of businesses following the integration of Central Refrigerated. In association with the operational reorganization, the operations of Central Refrigerated's Trailer on Flat Car (TOFC) business are reported within the Company's Intermodal segment and the operations of Central Refrigerated's logistics business, third-party leasing, and other services provided to owner-operators are reported in the Company's other non-reportable segment. All prior period historical results related to the above noted segment reorganization have been retrospectively recast.
	In the opinion of management, the accompanying financial statements prepared in accordance with GAAP include all adjustments necessary for the fair presentation of the interim periods presented. These interim financial statements should be read in conjunction with the Company’s annual financial statements for the year ended December 31, 2013. Management has evaluated the effect on the Company’s reported financial condition and results of operations of events subsequent to June 30, 2014 through the issuance of the financial statements.

New_Accounting_Standards

New Accounting Standards	6 Months Ended
	Jun. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
New Accounting Standards	'
	New Accounting Standards
	In May 2014, the Financial Accounting Standards Board ("FASB") issued, as a new topic, Accounting Standards Update 2014-09, Revenue from Contracts with Customers, Accounting Standards Codification (ASC) Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The premise of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU will be effective for the Company beginning January 1, 2017. Early adoption is not permitted. The Company is currently evaluating the accounting, transition and disclosure requirements of the standard and cannot currently estimate the financial statement impact of adoption.

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The effective tax rate for the six months ended June 30, 2014 was 38.5%. The Company's effective tax rate for the six months ended June 30, 2013 was 34.2%, which was 4.3% lower than expected primarily due to Central Refrigerated’s pre-affiliated earnings that were taxed as an S-corporation prior to Swift’s acquisition.
	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 June 30, 2014 were approximately $1.2 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 2008 through 2012. 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 2009 through 2013 remain subject to examination.

Investments

Investments	6 Months Ended
	Jun. 30, 2014
Schedule of Investments [Abstract]	'
Investments	'
	Investments
	The following table presents the cost or amortized cost, gross unrealized gains and losses, and estimated fair value of the Company’s restricted investments as of June 30, 2014 and December 31, 2013 (in thousands):
		30-Jun-14
		Cost or		Gross Unrealized				Estimated
		Amortized		Gains		Temporary		Fair
		Cost				Losses		Value
	U.S. corporate securities	$	22,042	$	8	$	4	$	22,046
	Foreign corporate securities	1,509		—		—		1,509
	Negotiable certificate of deposits	2,115		—		1		2,114
	Total restricted investments	$	25,666	$	8	$	5	$	25,669
		December 31, 2013
		Cost or		Gross Unrealized				Estimated
		Amortized				Temporary		Fair
		Cost		Gains		Losses		Value
	U.S. corporate securities	$	20,197	$	2	$	7	$	20,192
	Foreign corporate securities	3,502		—		—		3,502
	Negotiable certificate of deposits	2,115		—		1		2,114
	Total restricted investments	$	25,814	$	2	$	8	$	25,808
	As of June 30, 2014, the contractual maturities of the restricted investments were one year or less. There were 9 securities and 15 securities that were in an unrealized loss position for less than twelve months as of June 30, 2014 and December 31, 2013, respectively.
	The Company periodically evaluates restricted investments for impairment. The assessment of whether impairments have occurred is based on management’s case-by-case evaluation of the underlying reasons for the decline in estimated fair value.
	The Company accounts for other-than-temporary impairments of debt securities using the provisions of Topic 320, Investments – Debt and Equity Securities, related to the recognition of other-than-temporary impairments of debt securities. This guidance requires the Company to evaluate whether it intends to sell an impaired debt security or whether it is more likely than not that it will be required to sell an impaired debt security before recovery of the amortized cost basis. If either of these criteria is met, an impairment equal to the difference between the debt security’s amortized cost and its estimated fair value is recognized in earnings.
	For impaired debt securities that do not meet this criteria, the Company determines if a credit loss exists with respect to the impaired security. If a credit loss exists, the credit loss component of the impairment (i.e., the difference between the security’s amortized cost and the present value of projected future cash flows expected to be collected) is recognized in earnings and the remaining portion of the impairment is recognized as a component of accumulated other comprehensive income (OCI). The Company did not recognize any impairment losses for the three and six months ended June 30, 2014 and 2013, respectively.

Intangible_Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangible Assets	'
	Intangible Assets
	Intangible assets as of June 30, 2014 and December 31, 2013 were as follows (in thousands):
		30-Jun-14			31-Dec-13
	Customer Relationship:
	Gross carrying value	$	275,324		$	275,324
	Accumulated amortization	(148,021		)	(139,614		)
	Trade Name:
	Gross carrying value	181,037			181,037
	Intangible assets, net	$	308,340		$	316,747
	For all periods ending on or after December 31, 2007, amortization of intangibles consists primarily of amortization of $261.2 million gross carrying value of definite-lived intangible assets recognized under purchase accounting in connection with Swift Transportation Co.’s 2007 going private transaction. Intangible assets acquired as a result of the 2007 going private transaction include trade name, customer relationships, and owner-operator relationships. Amortization of the customer relationship acquired in the going private transaction is calculated on the 150% declining balance method over the estimated useful life of 15 years. The customer relationship contributed to the Company at May 9, 2007 is amortized using the straight-line method over 15 years. The trade name has an indefinite useful life and is not amortized, but rather is tested for impairment at least annually, unless events occur or circumstances change between annual tests that would more likely than not reduce the fair value.
	The following table presents amortization of intangibles for the three and six months ended June 30, 2014 and 2013, 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 June 30,						Six Months Ended June 30,
		2014			2013			2014		2013
	Amortization of intangible assets related to 2007 going private transaction	$	3,912		$	3,912		$	7,824	$	7,824
	Amortization of intangible assets related to intangible assets existing prior to the 2007 going private transaction	291			291			583		583
	Amortization of intangibles	$	4,203		$	4,203		$	8,407	$	8,407

Assets_Held_For_Sale

Assets Held For Sale	6 Months Ended
	Jun. 30, 2014
Text Block [Abstract]	'
Assets Held For Sale	'
	Assets Held for Sale
	Assets held for sale as of June 30, 2014 and December 31, 2013 were as follows (in thousands):
		30-Jun-14		31-Dec-13
	Land and facilities	$	5,141	$	14,627
	Revenue equipment	3,553		4,641
	Assets held for sale	$	8,694	$	19,268
	As of June 30, 2014 and December 31, 2013, assets held for sale are carried at the lower of depreciated cost or estimated fair value less expected selling costs. The Company expects to sell these assets within the next twelve months.
	During the three months ended June 30, 2014, the Company sold two operating properties classified as held for sale with a carrying value of $9.7 million. Total net proceeds from sale of these properties approximated their carrying value.

Debt_And_Financing_Transaction

Debt And Financing Transactions	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Debt And Financing Transactions	'
	Debt and Financing Transactions
	Other than the Company’s accounts receivable securitization as discussed in Note 8 and its outstanding capital lease obligations as discussed in Note 9, the Company had long-term debt outstanding as of June 30, 2014 and December 31, 2013 as follows (in thousands):
		30-Jun-14		31-Dec-13
	Senior secured first lien delayed draw term loan A tranche due June 2019	$	50,000	$	—
	Senior secured first lien term loan B tranche due June 2021, net of $992 OID as of June 30, 2014	398,008		—
	Senior secured first lien term loan B-1 tranche due December 2016	—		229,000
	Senior secured first lien term loan B-2 tranche due December 2017	—		410,000
	Senior second priority secured notes due November 15, 2018, net of $5,112 and $6,175 OID as of June 30, 2014 and December 31, 2013, respectively	455,711		493,825
	Other	11,765		17,480
	Total	915,484		1,150,305
	Less: current portion	23,763		11,387
	Long-term debt	$	891,721	$	1,138,918
	The credit facility and senior notes are secured by substantially all of the assets of the Company and are guaranteed by Swift Transportation Company, IEL, Central Refrigerated Transportation, Inc. and its subsidiaries, and Swift Transportation Companies domestic subsidiaries other than its captive insurance subsidiaries, driver training academy subsidiary, and its bankruptcy-remote special purpose subsidiary. As of June 30, 2014 and December 31, 2013, the balances of deferred loan costs were $13.2 million and $8.9 million, respectively, and is reported in Other assets in the Company’s consolidated balance sheets.
	Senior Secured Credit Facility
	On June 9, 2014, the Company entered into a Third Amended and Restated Credit Agreement (the “2014 Agreement”) replacing its previous Second Amended and Restated Credit Agreement dated March 7, 2013 (the “2013 Agreement”). The 2014 Agreement includes: (i) a $450.0 million revolving credit facility with a maturity date of June 2019, (ii) a $500.0 million delayed draw term loan A with a maturity date of June 2019, and (iii) a $400.0 million term loan B with a maturity date of June 2021.
	The term loan A requires quarterly minimum principal payments of $5.6 million commencing March 31, 2015 through December 31, 2016 and increasing to $11.3 million beginning March 31, 2017 through March 31, 2019, with the remaining outstanding principal balance on June 9, 2019. The term loan B requires quarterly principal payments of $1.0 million commencing June 30, 2014 with the remaining outstanding principal balance on June 9, 2021.
	Pursuant to the 2014 Agreement, the interest rate applicable to the term loan A equals LIBOR rate plus 2.00% with no LIBOR floor. Commencing the quarter ended September 30, 2014, the applicable LIBOR margin for the term loan A will range from 1.50% to 2.25% as determined by the Company’s consolidated leverage ratio as defined in the 2014 Agreement. The term loan B under the 2014 Agreement accrues interest at the LIBOR rate plus 3.00% with a 0.75% LIBOR floor. After December 31, 2014, the applicable LIBOR margin for the term loan B will range from 2.75% to 3.00% as determined by the Company’s consolidated leverage ratio. As of June 30, 2014, interest accrues at 2.15% and 3.75% on the Company’s first lien term loan A and B tranches, respectively.
	In addition to the pricing attributes described above, the 2014 Agreement increased the availability pursuant to the accordion feature from $350.0 million under the 2013 Agreement to $500.0 million, subject to the satisfaction of certain conditions and the participation of lenders.
	As of June 30, 2014, the Company had $99.0 million of outstanding borrowings under the $450.0 million revolving line of credit pursuant to the 2014 Agreement. Additionally, the Company had outstanding letters of credit under this facility primarily for workers’ compensation and self-insurance liability purposes totaling $106.8 million, leaving $244.2 million available under the revolving line of credit. Under the 2014 Agreement, the interest rate spread on the revolving credit facility ranges from 1.50% to 2.25% for LIBOR based borrowings and letters of credit and 0.50% to 1.25% for Base Rate borrowings, depending on the Company’s consolidated leverage ratio. Additionally, the commitment fee for the unused portion of the revolving credit facility ranges 0.25% to 0.35%, depending on the Company’s consolidated leverage ratio. As of June 30, 2014, interest accrues at 2.15%, 2.00% and 0.30% on the outstanding borrowings, letters of credit and unused portion, respectively, on the revolving line of credit.
	The 2014 Agreement, specifically the revolving credit facility and the term loan A tranche, contain certain financial covenants with respect to a maximum leverage ratio and a minimum consolidated interest coverage ratio. The 2014 Agreement removed any financial covenants related to the term loan B tranche. Further, the 2014 Agreement removed the maximum capital expenditures covenant and also provides for improved 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.
	The 2014 Agreement replaced the Company’s previous first lien term loan B-1 tranche maturing December 2016 and B-2 tranche maturing December 2017 under the 2013 Agreement with outstanding principal balances at closing of $229.0 million and $371.0 million, respectively. The previous first lien term loan B-1 and B-2 tranches accrued interest at LIBOR plus 2.75% and LIBOR plus 3.00% with a 1.00% LIBOR floor, respectively. Additionally, the 2014 Agreement replaced the Company’s previous revolving credit facility maturing September 2016. The interest rate spread on the previous revolving credit facility ranged from 3.00% to 3.25% for LIBOR based borrowings and letters of credit and 2.00% to 2.25% for Base Rate borrowings, depending on the Company’s consolidated leverage ratio. Additionally, the commitment fee for the unused portion of the previous revolving credit facility ranged from 0.25% to 0.50%, depending upon the Company’s consolidated leverage ratio. The replacement of the 2013 Agreement resulted in a loss on debt extinguishment of $5.2 million for the three months ended June 30, 2014, representing the write-off of deferred financing fees associated with the 2013 Agreement.
	Senior Second Priority Secured Notes
	In December 2010, Swift Services Holdings, Inc., a wholly owned subsidiary, completed a private placement of senior second priority secured notes totaling $500.0 million face value which mature in November 2018 and bear interest at 10.00% (the “senior notes”). The Company received proceeds of $490.0 million, net of a $10.0 million original issue discount. In the first six months of 2014, the Company repurchased in open market transactions at an average price of 110.50%, $39.2 million face value of these notes with cash on hand. The Company paid total proceeds of $44.7 million, which included the principal amount, the premium and the accrued interest. The premium and the related write-off of the unamortized original issue discount resulted in a loss on debt extinguishment of $1.8 million and $4.7 million in for the three and six months ended June 30, 2014, respectively. The Company anticipates utilizing the remainder of the delayed-draw first lien Term A loan under the 2014 Agreement to fund the majority of the redemption of the remaining senior second priority secured notes on or before December 31, 2014.
	Central Debt
	As of June 30, 2014, Central has approximately $1.8 million in various notes payable to financing companies secured by revenue equipment with due dates through May 2015.

Accounts_Receivable_Securitiza

Accounts Receivable Securitization	6 Months Ended
	Jun. 30, 2014
Transfers and Servicing [Abstract]	'
Accounts Receivable Securitization	'
	Accounts Receivable Securitization
	In June 2013, Swift Receivables Company II, LLC, a Delaware limited liability company (“SRCII”), a wholly-owned bankruptcy-remote special purpose subsidiary, entered into an Amended and Restated Receivables Sale Agreement (the “2013 RSA”) with unrelated financial entities (the “Purchasers”) 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 will 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. The 2013 RSA provides for up to $325.0 million in borrowing capacity. The 2013 RSA terminates on July 13, 2016 and is subject to customary fees and contains various customary affirmative and negative covenants, representations and warranties, and default and termination provisions. Outstanding balances under the 2013 RSA accrue program fees generally at commercial paper rates plus 95 basis points and unused capacity is subject to an unused commitment fee of 35 basis points. Pursuant to the 2013 RSA, 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. The facility qualifies for treatment as a secured borrowing under Topic 860, Transfers and Servicing, and as such, outstanding amounts are carried on the Company’s consolidated balance sheets as a liability.
	For the three and six months ended June 30, 2014, the Company incurred program fees of $0.8 million and $1.6 million, respectively, associated with the 2013 RSA which were recorded in interest expense in the Company's consolidated statements of income. For the three and six months ended June 30, 2013, the Company incurred program fees of $0.7 million and $1.5 million, respectively, primarily associated with the prior accounts receivable facility. As of June 30, 2014, the outstanding borrowing under the 2013 RSA was $319.0 million against a total available borrowing base of $325.0 million, leaving $6.0 million available. As of December 31, 2013, the outstanding borrowing under the 2013 RSA was $264.0 million against a total available borrowing base of $300.8 million.

Capital_Leases

Capital Leases	6 Months Ended
	Jun. 30, 2014
Leases [Abstract]	'
Capital Leases	'
	Capital Leases
	The Company leases certain revenue equipment under capital leases. 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. The Company is obligated to pay the balloon payments at the end of the leased term whether or not it receives the proceeds of the contracted residual values from the respective manufacturers. Certain leases contain renewal or fixed price purchase options. As of June 30, 2014 and December 31, 2013, the present value of obligations under capital leases totaled $187.1 million and $171.5 million, of which the current portion was $62.2 million and $63.7 million, respectively. The leases are collateralized by revenue equipment with a cost of $304.0 million and accumulated amortization of $67.9 million as of June 30, 2014. The amortization of the equipment under capital leases is included in depreciation and amortization expense in the Company’s consolidated statements of income.

Derivative_Financial_Instrumen

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	In April 2011, as contemplated by the then existing credit facility, the Company entered into two forward-starting interest rate swap agreements with a notional amount of $350.0 million. These interest rate swaps were effective in January 2013 and have a maturity date of July 2015. On April 27, 2011 (“designation date”), the Company designated and qualified these interest rate swaps as cash flow hedges. Subsequent to the designation date, the effective portion of the changes in estimated fair value of the designated swaps was recorded in accumulated other comprehensive income ("OCI") and was thereafter recognized as derivative interest expense as the interest on the hedged debt affects earnings, which hedged interest accruals began in January 2013. As of December 31, 2013, changes in estimated fair value of the designated interest rate swap agreements totaling $0.1 million, net-of-tax was reflected in accumulated OCI. Refer to Note 11 below for further discussion of the Company’s estimated fair value methodology.
	On March 7, 2013, the Company entered into the 2013 Agreement. Due to the incorporation of a new interest rate floor provision in the 2013 Agreement, the Company concluded, as of February 28, 2013, that the outstanding interest rate swaps were no longer highly effective in achieving offsetting changes in cash flows related to the hedged interest payments. As a result, the Company de-designated the hedges as of February 28, 2013 (“de-designation date”). Beginning on March 1, 2013, the effective portion of the change in fair value of interest rate swaps prior to the change (i.e., amounts previously recorded in accumulated OCI) have been and will continue to be amortized as derivative interest expense over the period of the originally designated hedged interest payments through July 2015. Following the de-designation date, changes in fair value of the interest rate swaps are immediately recognized in the consolidated statements of income as derivative interest expense.
	The following table presents the changes in fair value, pre-tax of derivatives designated as cash flow hedges had on accumulated OCI and earnings (in thousands):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Amount of (loss) income recognized in OCI on derivatives (effective portion)	$	—		$	(174	)	$	—		$	145
	Amount of loss reclassified from accumulated OCI into income as “Derivative interest expense” (effective portion)	$	(1,482	)	$	(468	)	$	(2,796	)	$	(959	)
	The following tables presents information about pre-tax gains and losses recognized in earnings on the Company’s interest rate derivative contracts that were de-designated on February 28, 2013 as hedging instruments under ASC Topic 815, is as follows (in thousands):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Amount of loss recognized in income as “Derivative interest expense”	$	(136	)	$	(64	)	$	(475	)	$	(135	)
	As of June 30, 2014, $7.2 million of pre-tax deferred losses on derivatives in accumulated OCI is expected to be reclassified to earnings within the next twelve months.

Fair_Value_Measurement

Fair Value Measurement	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurement	'
	Fair Value Measurement
	Topic 820, Fair Value Measurements and Disclosures, requires that the Company disclose estimated fair values for its financial instruments. The estimated fair value of a financial instrument is the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date in the principal or most advantageous market for the asset or liability. Fair value estimates are made at a specific point in time and are based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Changes in assumptions could significantly affect these estimates. As the fair value is estimated at June 30, 2014 and December 31, 2013, the amounts that will actually be realized or paid at settlement or maturity of the instruments in the future could be significantly different.
	The tables below exclude certain financial instruments. The excluded financial instruments are as follows: cash and cash equivalents, restricted cash, accounts receivable, net, income tax refund receivable and accounts payable. The estimated fair value of these financial instruments approximate carrying value as they are short-term in nature. Additionally, for notes payable under revolving lines of credit, fair value approximates the carrying value due to the variable interest rate. For capital leases, the carrying value approximates the fair value. The table below also excludes financial instruments reported at estimated fair value on a recurring basis. See “— Recurring Fair Value Measurements.” All remaining balance sheet amounts excluded from the table below are not considered financial instruments subject to this disclosure.
	The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments as of June 30, 2014 and December 31, 2013 (in thousands):
			30-Jun-14				31-Dec-13
			Carrying		Estimated		Carrying		Estimated
			Value		Fair Value		Value		Fair Value
	Financial Assets:
	Restricted investments		$	25,666	$	25,669	$	25,814	$	25,808
	Financial Liabilities:
	Senior secured first lien delayed draw term loan A tranche		50,000		50,000		—		—
	Senior secured first lien term loan B tranche		398,008		398,259		—		—
	Senior secured first lien term loan B-1 tranche (2013 Agreement)		—		—		229,000		230,031
	Senior secured first lien term loan B-2 tranche (2013 Agreement)		—		—		410,000		412,358
	Senior second priority secured notes		455,711		491,029		493,825		549,059
	Securitization of accounts receivable		319,000		319,000		264,000		264,000
	Central Financial Liabilities:
	Various notes payables to financing companies, due dates through May 2015						2,190		2,190
	The carrying amounts shown in the table (other than the restricted investments, and the securitization of accounts receivable) are included in the consolidated balance sheets in long-term debt and obligations under capital leases. The estimated fair values of the financial instruments shown in the above table as of June 30, 2014 and December 31, 2013, represent management’s best estimates of the amounts that would be received to sell those assets or that would be paid to transfer those liabilities in an orderly transaction between market participants at that date. The estimated fair value measurements maximize the use of observable inputs. However, in situations where there is little, if any, market activity for the asset or liability at the measurement date, the estimated fair value measurement reflects the Company’s own judgments about the assumptions that market participants would use in pricing the asset or liability. These judgments are developed by the Company based on the best information available under the circumstances.
	The following summary presents a description of the methods and assumptions used to estimate the fair value of each class of financial instrument.
	Restricted Investments
	The estimated fair value of the Company’s restricted investments is based on quoted prices in active markets that are readily and regularly obtainable.
	First Lien Term Loans and Senior Second Priority Secured Notes
	The estimated fair values of the first lien term loans and senior second priority secured notes were determined by bid prices in trades between qualified institutional buyers.
	Central Notes Payables
	Fair value is assumed to approximate carrying values for these financial instruments since they are short term in nature, or had stated interest rates that approximate the interest rates available to the Company as of the reporting date.
	Securitization of Accounts Receivable
	The Company’s securitization of accounts receivable consists of borrowings outstanding pursuant to the Company’s 2013 RSA as of June 30, 2014 and December 31, 2013, respectively, as discussed in Note 8. Its fair value is estimated by discounting future cash flows using a discount rate commensurate with the uncertainty involved.
	Fair Value Hierarchy
	ASC Topic 820 establishes a framework for measuring fair value in accordance with GAAP and expands financial statement disclosure requirements for fair value measurements. ASC Topic 820 further specifies a hierarchy of valuation techniques, which is based on whether the inputs into the valuation technique are observable or unobservable. The hierarchy is as follows:
	•	Level 1 — Valuation techniques in which all significant inputs are quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.
	•	Level 2 — Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices from markets that are not active for assets or liabilities that are identical or similar to the assets or liabilities being measured. Also, model-derived valuations in which all significant inputs and significant value drivers are observable in active markets are Level 2 valuation techniques.
	•	Level 3 — Valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are valuation technique inputs that reflect the Company’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.
	When available, the Company uses quoted market prices to determine the estimated fair value of an asset or liability. If quoted market prices are not available, the Company will measure fair value using valuation techniques that use, when possible, current market-based or independently-sourced market parameters, such as interest rates and currency rates. The level in the fair value hierarchy within which a fair measurement in its entirety falls is based on the lowest level input that is significant to the estimated fair value measurement in its entirety. Following is a brief summary of the Company’s classification within the fair value hierarchy of each major category of assets and liabilities that it measures and reports on its consolidated balance sheets at estimated fair value on a recurring basis as of June 30, 2014:
	•	Interest rate swaps. The Company’s interest rate swaps are not actively traded but are valued using valuation models and credit valuation adjustments, both of which use significant inputs that are observable in active markets over the terms of the instruments the Company holds, and accordingly, the Company classified these valuation techniques as Level 2 in the hierarchy. Interest rate yield curves and credit spreads derived from trading levels of the Company’s first lien term loan are the significant inputs into these valuation models. These inputs are observable in active markets over the terms of the instruments the Company holds. The Company considers the effect of its own credit standing and that of its counterparties in the valuations of its derivative financial instruments.
	Recurring Fair Value Measurements
	As of June 30, 2014 and December 31, 2013, no assets of the Company were measured at estimated fair value on a recurring basis. As of June 30, 2014 and December 31, 2013, information about inputs into the estimated fair value measurements of each major category of the Company’s liabilities that were measured at estimated fair value on a recurring basis in periods subsequent to their initial recognition was as follows (in thousands):
					Fair Value Measurements at Reporting Date Using
	Description		Total		Quoted Prices in		Significant		Significant
			Estimated		Active  Markets for		Other		Unobservable
			Fair Value		Identical Assets or		Observable		Inputs
					Liabilities		Inputs		(Level 3)
					(Level 1)		(Level 2)
	As of June 30, 2014
	Interest rate swaps		$	9,332	$	—	$	9,332	$	—
	As of December 31, 2013
	Interest rate swaps		$	11,768	$	—	$	11,768	$	—
	Nonrecurring Fair Value Measurements
	As of June 30, 2014 and December 31, 2013, no assets or liabilities of the Company were measured at estimated fair value on a nonrecurring basis.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Earnings per Share
	The computation of basic and diluted earnings per share is as follows:
			Three Months Ended June 30,				Six Months Ended June 30,
			2014		2013		2014		2013
			(In thousands, except
			per share amounts)
	Net income		$	40,198	$	49,879	$	52,503	$	80,171
	Basic:
	Weighted average common shares outstanding		141,308		139,989		141,143		139,839
	Diluted:
	Dilutive effect of stock options		2,085		1,849		2,122		1,813
	Total weighted average diluted shares outstanding		143,393		141,838		143,265		141,652
	Anti-dilutive shares excluded from the diluted earnings per share calculation (1)		—		171		—		171
	Earnings per share:
	Basic earnings per share		$	0.28	$	0.36	$	0.37	$	0.57
	Diluted earnings per share		$	0.28	$	0.35	$	0.37	$	0.57
	-1	Impact of outstanding options to purchase shares of the Company’s Class A common stock were anti-dilutive because the options exercise price was greater than the average market price of the common shares and were excluded from the calculation of diluted earnings per share.
	As of June 30, 2014 and 2013, there were 4,913,872 and 5,847,980 options outstanding, respectively.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2014
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 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.
	2004 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 vs. Swift Transportation Co., Inc., Case No. CV7-472, or 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 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. 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.
	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., and 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, or 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, or 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 are alleged to be 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 U.S. Supreme Court to address whether the district court or the arbitrator should determine whether the contract is an employment contract exempt from Section 1 of the Federal Arbitration Act. On June 16, 2014, the U.S. Supreme Court denied the Company’s petition for writ of certiorari. 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 action
	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, or 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.
	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 new 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, or the Rudsell Complaint. The Rudsell matter has been stayed pending a resolution in Burnell v Swift. Any claims related to orientation pay in the Rudsell matter have been subsumed within the Montalvo v. Swift class action matter (discussed below).
	The issue of class certification must first be resolved before the court will address the merits of the case, and we retain all of our 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.
	California minimum wage class action
	On July 12, 2011, a class action lawsuit was filed by Simona Montalvo on behalf of herself and all similarly situated persons against Swift Transportation: Montalvo et al. v. Swift Transportation Corporation d/b/a ST Swift Transportation Corporation in the Superior Court of California, County of San Diego, or the Montalvo Complaint. The Montalvo Complaint was removed to federal court on August 15, 2011, case number 3-11-CV-1827-L. Upon petition by plaintiffs, the matter was remanded to state court and the Company filed an appeal to this remand, which appeal has been denied. The putative class includes employees alleging that candidates for employment within the four year statutory period in California were not paid the state mandated minimum wage during their orientation phase. On July 29, 2013, the court certified the class. The Company appealed the class certification and the remand to state court but on April 10, 2014, the Company’s appeal of class certification was denied.
	The Company intends to vigorously defend against the merits of this matter. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.
	Washington overtime class action
	On September 9, 2011, a class action lawsuit was filed by Troy Slack on behalf of himself 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, or 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 alleging that they were not paid overtime in accordance with Washington State law and that they were not properly paid for meals and rest periods. 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 route drivers and did not certify any other class or claims including any class related to over the road drivers (“OTR Drivers”). The court also further limited the class of dedicated drivers to only those dedicated drivers that either begin or end their shift in the state of Washington and therefore is a Washington-based employee. Swift is appealing the limited certification of the Washington dedicated drivers.
	The issue of class certification must first be resolved before the court will address the merits of the case, and we retain all of our defenses against liability and damages pending a determination of class certification. The Company intends to vigorously defend certification of the class as well as the merits of these matters should the class be certified. The final disposition of this case and the impact of such final disposition of this case cannot be determined at this time.
	Utah minimum wage collective action
	On October 8, 2013, a collective action lawsuit was filed by Jacob Roberts on behalf of himself and all similarly situated persons against Central Refrigerated Service, Inc., Jon Isaacson, Bob Baer and John Does 1-10 (“CRS”): Jacob Roberts and Collective Action Plaintiffs John Does 1-10 v. Central Refrigerated Service, Inc., Jon Isaacson, Bob Baer and John Does 1-10 in the United States District Court for the District of Utah, Case No. 2;13-ev-00911-EJF, or the Roberts Complaint. The putative nationwide class includes employees alleging that candidates for employment within the three year statutory period in Utah were not paid proper compensation pursuant to the FLSA, specifically that the putative collective action plaintiffs were not paid the state mandated minimum wage for orientation, travel, and training.
	The issue of collective action certification in the Roberts Complaint must first be resolved before the court will address the merits of the case, and we retain all of our defenses against liability and damages pending a determination of collective action certification. Central intends to vigorously defend against collective action certification as well as the merits of this matter should the collective action be certified. 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 (“Central”): 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, or 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 FLSA claim proceed to collective arbitration under the Utah Uniform Arbitration Act (“UUAA”) and not the Federal Arbitration Act (“FAA”). The September 24, 2012 order directed the arbitrator to determine the validity of proceeding as a collective arbitration under the UAA, 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.
	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.
	California minimum wage class action
	On November 7, 2013, a class action lawsuit was filed by Jorge Calix on behalf of himself and all similarly situated persons against Central Refrigerated Service, Inc.: Calix et al. v. Central Refrigerated Service, Inc. (“Central”) in the Superior Court of California, County of San Bernardino, or the Calix Complaint. The putative class includes employees alleging that candidates for employment within the four year statutory period in California were not paid the state mandated minimum wage during their orientation phase. On December 13, 2013, Central filed an answer denying the allegations.
	The issue of class certification must first be resolved before the court will address the merits of the case, and we retain all of our defenses against liability and damages pending a determination of class certification. Central intends to vigorously defend against certification of the class as well as the merits of this matter should the class be certified. 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, or LWG, advising that there are a total of 250 potentially responsible parties, or PRPs, with respect to alleged environmental contamination of the Lower Willamette River in Portland, Oregon designated as the Portland Harbor Superfund site, or the Site, and that as a previous landowner at the Site the Company has been 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, the Company believes our 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. The Company 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.
	2013 Environmental Incident
	On May 14, 2013, a Swift Transportation tractor and trailer was involved in an accident in Bridgeport, California that resulted in fuel and other liquid components being released into the ground and a nearby stream. Based on soil and water testing of the impacted area, the Company expects the range of cost to remediate this release is $0.3 million to $0.5 million.
	Other environmental
	Our tractors and trailers are involved in motor vehicle accidents, experience damage, mechanical failures and cargo issues as an incidental part of our 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, we are sometimes responsible for the clean-up costs associated with these discharges.  As of June 30, 2014, we estimate our total legal liability for all such clean-up and remediation costs to be approximately $0.5 million in the aggregate for all current and prior year claims.

Segment_Information

Segment Information	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	Segment information
	The Company’s four reportable operating segments are Truckload, Dedicated, Central Refrigerated and Intermodal. In the first quarter of 2014, the Company reorganized its reportable segments to reflect management’s revised reporting structure of its lines of businesses following the integration of Central Refrigerated. In association with the operational reorganization, the operations of Central Refrigerated's TOFC business are reported within the Company's Intermodal segment and the operations of Central Refrigerated's logistics business, third-party leasing, and other services provided to owner-operators are reported in the Company's other non-reportable segment. All prior period historical results related to the above noted segment reorganization have been retrospectively recast.
	•	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 and offers tailored solutions under long-term contracts. This dedicated segment utilizes refrigerated, dry van, flatbed and other specialized trailing equipment.
	•	Central Refrigerated. The Central Refrigerated segment is primarily shipments for customers that require temperature-controlled trailers and represents the core operations of Central Refrigerated. These shipments include one-way movements over irregular routes and dedicated truck operations.
	•	Intermodal. The intermodal segment includes revenue generated by moving freight over the rail in our containers and other trailing equipment, combined with revenue for drayage to transport loads between the railheads and customer locations.
	•	Other businesses. Nonreportable segments are comprised of the Company’s freight brokerage and logistics management services, as well as revenue generated by the Company’s subsidiaries offering support services to its customers and owner-operators, including shop maintenance, equipment leasing, and insurance.
	The Company uses the “management approach” to determine its reportable operating segments, as well as to determine the basis of reporting the operating segment information. The management approach focuses on financial information that the Company’s management uses to make operating decisions. The chief operating decision makers use operating revenues, operating expense categories, operating ratios, operating income and key operating statistics to evaluate performance and allocate resources to the Company’s operations.
	Operating income is the measure of segment profit or loss the Company uses to evaluate segment performance and allocate resources and, consistent with GAAP accounting guidance for segment reporting, it is the Company’s measure of segment performance and is reported below. Operating income should not be viewed as a substitute for GAAP net income (loss). The Company believes the presentation of operating income enhances the understanding of its performance by highlighting the results of operations and the underlying profitability drivers of the business segments.
	Operating income is defined as operating revenues less operating expenses, before tax.
	Based on the unique nature of the operating structure of the Company, revenue generating assets are interchangeable between segments. Therefore, the Company does not prepare separate balance sheets by segment as assets are not separately identifiable by segment. The Company allocates depreciation and amortization expense on its property and equipment to the segments based on the actual utilization of the asset by the segment during the period.
	The Company’s foreign operations total revenue was less than 5.0% of the Company’s total revenue for the three and six months ended June 30, 2014 and 2013, respectively.
	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 June 30,						Six Months Ended June 30,
			2014			2013			2014			2013
	Truckload		$	575,481		$	588,724		$	1,128,538		$	1,148,319
	Dedicated		223,098			182,651			416,751			361,877
	Central Refrigerated		106,911			111,238			213,674			217,640
	Intermodal		100,911			90,994			192,224			174,258
	Subtotal		1,006,401			973,607			1,951,187			1,902,094
	Nonreportable segments		83,491			71,915			159,157			143,972
	Intersegment eliminations		(13,994		)	(16,451		)	(26,000		)	(35,387		)
	Consolidated operating revenue		$	1,075,898		$	1,029,071		$	2,084,344		$	2,010,679
			Operating Income (Loss)
			Three Months Ended June 30,						Six Months Ended June 30,
			2014			2013			2014			2013
	Truckload		$	69,596		$	64,614		$	101,503		$	107,017
	Dedicated		21,112			24,263			32,642			43,217
	Central Refrigerated		3,662			5,660			6,082			10,381
	Intermodal		(495		)	788			(1,421		)	(816		)
	Subtotal		93,875			95,325			138,806			159,799
	Nonreportable segments		147			4,941			1,386			10,185
	Consolidated operating income		$	94,022		$	100,266		$	140,192		$	169,984
			Depreciation and Amortization
			Expense
			Three Months Ended June 30,						Six Months Ended June 30,
			2014			2013			2014			2013
	Truckload		$	28,316		$	32,387		$	58,561		$	63,380
	Dedicated		13,670			11,223			26,075			21,728
	Central Refrigerated		2,914			3,821			6,020			7,799
	Intermodal		2,583			2,318			4,951			4,745
	Subtotal		47,483			49,749			95,607			97,652
	Nonreportable segments		7,308			7,131			15,359			14,098
	Consolidated depreciation and amortization expense		$	54,791		$	56,880		$	110,966		$	111,750
	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.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Accumulated Other Comprehensive Income	'
	Accumulated Other Comprehensive Loss
	The following table is a reconciliation of accumulated other comprehensive loss by component (in thousands):
		Derivative Financial Instruments			Foreign Currency Transactions			Accumulated Other Comprehensive Loss
	Balance as of December 31, 2013	$	(6,245	)	$	83		$	(6,162	)
	Other comprehensive loss before reclassifications	—			—			—
	Amounts reclassified from accumulated other comprehensive loss	1,719			—			1,719
	Net current-period other comprehensive income	1,719			—			1,719
	Balance as of June 30, 2014	$	(4,526	)	$	83		$	(4,443	)
	All amounts are net-of-tax. Amounts in parenthesis indicate debits, or loss.
	The following table presents details about reclassifications out of accumulated other comprehensive loss for the three and six months ended June 30, 2014 and 2013 (in thousands):
		Amounts Reclassified from Accumulated Other Comprehensive Loss
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013			Statement of Income Classifications
	Gains and losses on cash flow hedging:
	Interest rate swaps	$	1,482		$	468		$	2,796		$	959		Derivative interest expense
	Income tax benefit	(571		)	(180		)	(1,077		)	(369		)	Income tax expense
		$	911		$	288		$	1,719		$	590		Net income

Guarantor_Condensed_Consolidat

Guarantor Condensed Consolidating Financial Statements	6 Months Ended
	Jun. 30, 2014
Text Block [Abstract]	'
Guarantor Condensed Consolidating Financial Statements	'
	Guarantor Condensed Consolidating Financial Statements
	The payment of principal and interest on the Company’s senior second priority secured notes are guaranteed by the Company and the Company’s 100% owned domestic subsidiaries (the “Guarantor Subsidiaries”) other than its driver academy subsidiary, its captive insurance subsidiaries, its special-purpose receivables securitization subsidiary, and its foreign subsidiaries (the “Non-guarantor Subsidiaries”). The separate financial statements of the Guarantor Subsidiaries are not included herein because the Guarantor Subsidiaries are the Company’s 100% owned consolidated subsidiaries and are jointly, severally, fully and unconditionally liable for the obligations represented by the senior second priority secured notes.
	Pursuant to the terms of the Indenture governing the senior second priority secured notes, the guarantees are full and unconditional, but are subject to release under the following circumstances:
	Ÿ in connection with any sale, disposition or transfer of all or substantially all of the assets to a person that is not the parent, the Company or a subsidiary guarantor;
	Ÿ in connection with any sale, disposition or transfer of all of the capital stock of that subsidiary guarantor to a person that is not the parent, the Company or a subsidiary guarantor;
	Ÿ if the Company designates any restricted subsidiary that is a subsidiary guarantor to be an Unrestricted Subsidiary,
	Ÿ upon legal Defeasance or the discharge of the Company's obligation under the Indenture; or
	Ÿ at such time as such subsidiary guarantor does not have any indebtedness that would have required a guarantee.
	Although the guarantees are subject to release under the above described circumstances, we have concluded they are still deemed full and unconditional for purposes of Rule 3-10 of Regulation S-X because these circumstances are customary, and accordingly, the Company concluded that it may rely on Rule 3-10 of Regulation S-X, as the other requirements of Rule 3-10 have been met.
	The condensed financial statements present condensed financial data for (i) Swift Transportation Company (on a parent only basis), (ii) Swift Services Holdings, Inc. (on an issuer only basis), (iii) the combined Guarantor Subsidiaries, (iv) the combined Non-Guarantor Subsidiaries, (v) an elimination column for adjustments to arrive at the information for the parent company and subsidiaries on a consolidated basis and (vi) the parent company and subsidiaries on a consolidated basis as of June 30, 2014 and December 31, 2013 and for the three and six months ended June 30, 2014 and 2013.
	Investments in subsidiaries are accounted for by the respective parent company using the equity method for purposes of this presentation. Results of operations of subsidiaries are therefore reflected in the parent company’s investment accounts and earnings. The principal elimination entries set forth below eliminate investments in subsidiaries and intercompany balances and transactions.
	Condensed consolidating balance sheet as of June 30, 2014 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Cash and cash equivalents	$	—		$	—		$	66,487		$	7,041		$	—		$	73,528
	Restricted cash	—			—			—			52,815			—			52,815
	Restricted investments, held to maturity, amortized cost	—			—			—			25,666			—			25,666
	Accounts receivable, net	—			—			31,620			431,974			(3,236		)	460,358
	Intercompany receivable	131,608			344,418			—			57,073			(533,099		)	—
	Other current assets	9,542			—			118,297			16,248			(4,031		)	140,056
	Total current assets	141,150			344,418			216,404			590,817			(540,366		)	752,423
	Property and equipment, net	—			—			1,412,170			38,182			—			1,450,352
	Investment in subsidiaries	296,176			909,847			1,010,290			—			(2,216,313		)	—
	Other assets	10,453			2,028			65,534			3,846			(31,126		)	50,735
	Intangible assets, net	—			—			299,071			9,269			—			308,340
	Goodwill	—			—			246,977			6,279			—			253,256
	Total assets	$	447,779		$	1,256,293		$	3,250,446		$	648,393		$	(2,787,805	)	$	2,815,106
	Intercompany payable	$	—		$	4,031		$	533,099		$	—		$	(537,130	)	$	—
	Current portion of long-term debt and obligations under capital leases	2,430			—			79,745			23,242			(19,455		)	85,962
	Other current liabilities	17,430			3,814			308,348			23,980			(3,236		)	350,336
	Total current liabilities	19,860			7,845			921,192			47,222			(559,821		)	436,298
	Long-term debt and obligations under capital leases, less current portion	—			455,711			557,673			4,013			(772		)	1,016,625
	Deferred income taxes	—			—			457,286			8,112			(10,899		)	454,499
	Revolving line of credit	—			—			99,000			—			—			99,000
	Securitization of accounts receivable	—			—			—			319,000			—			319,000
	Other liabilities	—			—			89,532			52,344			—			141,876
	Total liabilities	19,860			463,556			2,124,683			430,691			(571,492		)	2,467,298
	Total stockholders’ equity	427,919			792,737			1,125,763			217,702			(2,216,313		)	347,808
	Total liabilities and stockholders’ equity	$	447,779		$	1,256,293		$	3,250,446		$	648,393		$	(2,787,805	)	$	2,815,106
	Condensed consolidating balance sheet as of December 31, 2013 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Cash and cash equivalents	$	—		$	—		$	54,564		$	4,614		$	—		$	59,178
	Restricted cash	—			—			—			50,833			—			50,833
	Restricted investments, held to maturity, amortized cost	—			—			—			25,814			—			25,814
	Accounts receivable, net	—			—			28,997			394,044			(4,605		)	418,436
	Intercompany receivable	85,498			400,569			—			55,799			(541,866		)	—
	Other current assets	37,022			—			127,775			16,270			(1,296		)	179,771
	Total current assets	122,520			400,569			211,336			547,374			(547,767		)	734,032
	Property and equipment, net	—			—			1,407,414			40,393			—			1,447,807
	Investment in subsidiaries	239,432			870,599			983,289			—			(2,093,320		)	—
	Other assets	11,780			2,355			83,967			4,639			(45,575		)	57,166
	Intangible assets, net	—			—			307,092			9,655			—			316,747
	Goodwill	—			—			246,977			6,279			—			253,256
	Total assets	$	373,732		$	1,273,523		$	3,240,075		$	608,340		$	(2,686,662	)	$	2,809,008
	Intercompany payable	$	—		$	1,296		$	542,772		$	—		$	(544,068	)	$	—
	Current portion of long-term debt and obligations under capital leases	6,036			—			64,970			36,626			(32,576		)	75,056
	Other current liabilities	2,281			6,389			277,921			27,170			(4,449		)	309,312
	Total current liabilities	8,317			7,685			885,663			63,796			(581,093		)	384,368
Long-term debt and obligations under capital leases, less current portion	—			493,825			747,918			5,046			(25		)	1,246,764
Deferred income taxes	—			—			487,670			8,754			(12,224		)	484,200
Securitization of accounts receivable	—			—			—			264,000			—			264,000
Revolving line of credit	—			—			17,000			—			—			17,000
Other liabilities	—			—			73,774			55,315			—			129,089
Total liabilities	8,317			501,510			2,212,025			396,911			(593,342		)	2,525,421
Total stockholders’ equity	365,415			772,013			1,028,050			211,429			(2,093,320		)	283,587
Total liabilities and stockholders’ equity	$	373,732		$	1,273,523		$	3,240,075		$	608,340		$	(2,686,662	)	$	2,809,008
Condensed consolidating statement of income for the three months ended June 30, 2014 (in thousands)
	Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Services			Subsidiaries			Guarantor			for
	Company			Holdings, Inc.						Subsidiaries			Consolidation
	(Parent)			(Issuer)
Operating revenue	$	—		$	—		$	1,054,756		$	39,206		$	(18,064	)	$	1,075,898
Operating expenses:
Salaries, wages and employee benefits	1,291			—			228,897			7,905			—			238,093
Operating supplies and expenses	679			1			84,815			1,296			(2,714		)	84,077
Fuel	—			—			146,495			7,182			—			153,677
Purchased transportation	—			—			349,494			2,595			(11,840		)	340,249
Rental expense	—			—			55,524			776			(165		)	56,135
Insurance and claims	1,680			—			25,457			9,529			(3,345		)	33,321
Depreciation and amortization of property and equipment	—			—			53,473			1,318			—			54,791
Amortization of intangibles	—			—			4,010			193			—			4,203
Gain on disposal of property and equipment	—			—			(8,312		)	—			—			(8,312		)
Communication and utilities	—			—			7,441			275			—			7,716
Operating taxes and licenses	62			—			15,063			2,801			—			17,926
Total operating expenses	3,712			1			962,357			33,870			(18,064		)	981,876
Operating income (loss)	(3,712		)	(1		)	92,399			5,336			—			94,022
Interest expense, net	19			11,918			9,381			1,061			—			22,379
Other (income) expenses, net	(42,587		)	(33,347		)	(23,638		)	(3,485		)	109,337			6,280
Income before income taxes	38,856			21,428			106,656			7,760			(109,337		)	65,363
Income tax expense (benefit)	(1,342		)	(5,095		)	28,896			2,706			—			25,165
Net income (loss)	$	40,198		$	26,523		$	77,760		$	5,054		$	(109,337	)	$	40,198
Condensed consolidating statement of income for the three months ended June 30, 2013 (in thousands)
	Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Services			Subsidiaries			Guarantor			for
	Company			Holdings, Inc.						Subsidiaries			Consolidation
	(Parent)			(Issuer)
Operating revenue	$	—		$	—		$	1,009,881		$	40,813		$	(21,623	)	$	1,029,071
Operating expenses:
Salaries, wages and employee benefits	833			—			215,346			7,673			—			223,852
Operating supplies and expenses	631			4			75,194			5,041			(1,874		)	78,996
Fuel	—			—			154,059			6,827			—			160,886
Purchased transportation	—			—			317,745			3,641			(13,269		)	308,117
Rental expense	—			—			42,259			876			(139		)	42,996
Insurance and claims	—			—			29,562			10,376			(6,341		)	33,597
Depreciation and amortization of property and equipment	—			—			55,720			1,160			—			56,880
Amortization of intangibles	—			—			4,010			193			—			4,203
Gain on disposal of property and equipment	—			—			(5,178		)	35			—			(5,143		)
Communication and utilities	—			—			5,675			226			—			5,901
Operating taxes and licenses	—			—			15,719			2,801			—			18,520
Total operating expenses	1,464			4			910,111			38,849			(21,623		)	928,805
Operating income (loss)	(1,464		)	(4		)	99,770			1,964			—			100,266
Interest expense, net	—			12,914			10,405			1,429			—			24,748
Other (income) expenses, net	(20,844		)	(38,501		)	(30,739		)	(2,981		)	91,741			(1,324		)
Income (loss) before income taxes	19,380			25,583			120,104			3,516			(91,741		)	76,842
Income tax expense (benefit)	(23,561		)	(4,793		)	53,821			1,496			—			26,963
Net income (loss)	$	42,941		$	30,376		$	66,283		$	2,020		$	(91,741	)	$	49,879
Condensed consolidating statement of income for the six months ended June 30, 2014 (in thousands)
	Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Services			Subsidiaries			Guarantor			for
	Company			Holdings, Inc.						Subsidiaries			Consolidation
	(Parent)			(Issuer)
Operating revenue	$	—		$	—		$	2,043,749		$	77,728		$	(37,133	)	$	2,084,344
Operating expenses:
Salaries, wages and employee benefits	2,352			—			449,431			15,676			—			467,459
Operating supplies and expenses	1,363			1			161,090			7,924			(5,476		)	164,902
Fuel	—			—			295,627			14,072			—			309,699
Purchased transportation	—			—			679,006			5,052			(24,640		)	659,418
Rental expense	—			—			106,516			1,666			(328		)	107,854
Insurance and claims	3,395			—			60,392			18,671			(6,689		)	75,769
Depreciation and amortization of property and equipment	—			—			108,241			2,725			—			110,966
Amortization of intangibles	—			—			8,021			386			—			8,407
Gain on disposal of property and equipment	—			—			(11,471		)	—			—			(11,471		)
Communication and utilities	—			—			14,321			565			—			14,886
Operating taxes and licenses	62			—			30,580			5,621			—			36,263
Total operating expenses	7,172			1			1,901,754			72,358			(37,133		)	1,944,152
Operating income (loss)	(7,172		)	(1		)	141,995			5,370			—			140,192
Interest expense, net	49			24,699			19,325			2,418			—			46,491
Other (income) expenses, net	(56,743		)	(34,510		)	(16,863		)	(6,547		)	122,992			8,329
Income (loss) before income taxes	49,522			9,810			139,533			9,499			(122,992		)	85,372
Income tax expense (benefit)	(2,981		)	(10,914		)	43,541			3,223			—			32,869
Net income (loss)	$	52,503		$	20,724		$	95,992		$	6,276		$	(122,992	)	$	52,503
Condensed consolidating statement of income for the six months ended June 30, 2013 (in thousands)
	Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Services			Subsidiaries			Guarantor			for
	Company			Holdings, Inc.						Subsidiaries			Consolidation
	(Parent)			(Issuer)
Operating revenue	$	—		$	—		$	1,973,623		$	79,439		$	(42,383	)	$	2,010,679
Operating expenses:
Salaries, wages and employee benefits	1,378			—			434,067			14,892			—			450,337
Operating supplies and expenses	1,130			4			145,532			8,029			(3,632		)	151,063
Fuel	—			—			315,917			13,085			—			329,002
Purchased transportation	—			—			619,395			6,619			(25,741		)	600,273
Rental expense	—			—			82,149			1,797			(327		)	83,619
Insurance and claims	—			—			56,293			21,525			(12,683		)	65,135
Depreciation and amortization of property and equipment	—			—			109,550			2,200			—			111,750
Amortization of intangibles	—			—			8,021			386			—			8,407
Gain on disposal of property and equipment	—			—			(8,011		)	20			—			(7,991		)
Communication and utilities	—			—			12,043			423			—			12,466
Operating taxes and licenses	—			—			31,169			5,465			—			36,634
Total operating expenses	2,508			4			1,806,125			74,441			(42,383		)	1,840,695
Operating income (loss), net	(2,508		)	(4		)	167,498			4,998			—			169,984
Interest expense, net	—			25,827			22,753			2,501			—			51,081
Other (income) expenses	(44,343		)	(45,448		)	(31,271		)	(5,347		)	123,491			(2,918		)
Income before income taxes	41,835			19,617			176,016			7,844			(123,491		)	121,821
Income tax expense (benefit)	(24,447		)	(9,583		)	72,336			3,344			—			41,650
Net income (loss)	$	66,282		$	29,200		$	103,680		$	4,500		$	(123,491	)	$	80,171
Condensed consolidating statement of comprehensive income for the three months ended June 30, 2014 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net income	$	40,198		$	26,523		$	77,760		$	5,054		$	(109,337	)	$	40,198
Other comprehensive income before income taxes:
Accumulated losses on derivatives reclassified to derivative interest expense	—			—			1,482			—			—			1,482
Change in fair value of interest rate swaps	—			—			—			—			—			—
Other comprehensive income before income taxes	—			—			1,482			—			—			1,482
Income tax effect of items of other comprehensive income	—			—			(571		)	—			—			(571		)
Total comprehensive income	$	40,198		$	26,523		$	78,671		$	5,054		$	(109,337	)	$	41,109
Condensed consolidating statement of comprehensive income for the three months ended June 30, 2013 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net income (loss)	$	42,941		$	30,376		$	66,283		$	2,020		$	(91,741	)	$	49,879
Other comprehensive income before income taxes:
Accumulated losses on derivatives reclassified to derivative interest expense	—			—			468			—			—			468
Change in fair value of interest rate swaps	—			—			174			—			—			174
Other comprehensive income before income taxes	—			—			642			—			—			642
Income tax effect of items of other comprehensive income	—			—			(244		)	—			—			(244		)
Total comprehensive income (loss)	$	42,941		$	30,376		$	66,681		$	2,020		$	(91,741	)	$	50,277
Condensed consolidating statement of comprehensive income for the six months ended June 30, 2014 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net income (loss)	$	52,503		$	20,724		$	95,992		$	6,276		$	(122,992	)	$	52,503
Other comprehensive income before income taxes:
Accumulated losses on derivatives reclassified to derivative interest expense	—			—			2,796			—			—			2,796
Change in fair value of interest rate swaps	—			—			—			—			—			—
Other comprehensive income before income taxes	—			—			2,796			—			—			2,796
Income tax effect of items of other comprehensive income	—			—			(1,077		)	—			—			(1,077		)
Total comprehensive income (loss)	$	52,503		$	20,724		$	97,711		$	6,276		$	(122,992	)	$	54,222
Condensed consolidating statement of comprehensive income for the six months ended June 30, 2013 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net income (loss)	$	66,282		$	29,200		$	103,680		$	4,500		$	(123,491	)	$	80,171
Other comprehensive income before income taxes:
Accumulated losses on derivatives reclassified to derivative interest expense	—			—			959			—			—			959
Change in fair value of interest rate swaps	—			—			(145		)	—			—			(145		)
Other comprehensive income before income taxes	—			—			814			—			—			814
Income tax effect of items of other comprehensive income	—			—			(218		)	—			—			(218		)
Total comprehensive income (loss)	$	66,282		$	29,200		$	104,276		$	4,500		$	(123,491	)	$	80,767
Condensed consolidating statement of cash flows for the six months ended June 30, 2014 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net cash provided by (used in) operating activities	$	42,070		$	(56,151	)	$	233,111		$	(35,547	)	$	—		$	183,483
Cash flows from investing activities:
Increase in restricted cash	—			—			—			(1,982		)	—			(1,982		)
Change in restricted investments	—			—			—			(113		)	—			(113		)
Proceeds from sale of property and equipment	—			—			77,088						—			77,088
Capital expenditures	—			—			(134,554		)	(514		)	—			(135,068		)
Payments received on notes receivable				—			2,226			—			—			2,226
Expenditures on assets held for sale	—			—			(1,991		)	—			—			(1,991		)
Payments received on assets held for sale	—			—			13,603			—			—			13,603
Payments received on equipment sale receivables	—			—			385			—			—			385
Net cash used in investing activities	—			—			(43,243		)	(2,609		)	—			(45,852		)
Cash flows from financing activities:
Proceeds from long-term debt	—			—			450,000			—			—			450,000
Payment of deferred loan costs	—			—			(10,541		)	—			—			(10,541		)
Borrowings under accounts receivable securitization	—			—			—			95,000			—			95,000
Repayment of long-term debt and capital leases	(3,607		)	—			(701,732		)	(2,047		)	—			(707,386		)
Net borrowings on revolving line of credit	—			—			82,000			—			—			82,000
Repayment of accounts receivable securitization	—			—			—			(40,000		)	—			(40,000		)
Net funding (to) from affiliates	(46,109		)	56,151			2,328			(12,370		)	—			—
Proceeds from exercise of stock options	5,811			—			—			—			—			5,811
Income tax benefit from exercise of stock options	1,835			—			—			—			—			1,835
Net cash provided by (used in) financing activities	(42,070		)	56,151			(177,945		)	40,583			—			(123,281		)
Net increase in cash and cash equivalents	—			—			11,923			2,427			—			14,350
Cash and cash equivalents at beginning of period	—			—			54,564			4,614			—			59,178
Cash and cash equivalents at end of period	$	—		$	—		$	66,487		$	7,041		$	—		$	73,528
Condensed consolidating statement of cash flows for the six months ended June 30, 2013 (in thousands)
	Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
	Company			(Issuer)						Subsidiaries			Consolidation
	(Parent)
Net cash provided by (used in) operating activities	$	57,295		$	(14,029	)	$	222,329		$	(19,949	)	$	—		$	245,646
Cash flows from investing activities:
Decrease in restricted cash	—			—			—			8,984			—			8,984
Change in restricted investments	—			—			—			(4,680		)	—			(4,680		)
Proceeds from sale of property and equipment	—			—			47,125			136			—			47,261
Capital expenditures	—			—			(163,815		)	(505		)	—			(164,320		)
Payments received on notes receivable	—			—			2,074			—			—			2,074
Expenditures on assets held for sale	—			—			(1,614		)	—			—			(1,614		)
Payments received on assets held for sale	—			—			22,773			—			—			22,773
Payments received on equipment sale receivables	—			—			644			—			—			644
Dividends from subsidiary	—			—			6,800			—			(6,800		)	—
Payments received on intercompany notes payable	—			—			3,399			—			(3,399		)	—
Capital contribution to subsidiary	—			—			(1,160		)	—			1,160			—
Net cash provided by (used in) investing activities	—			—			(83,774		)	3,935			(9,039		)	(88,878		)
Cash flows from financing activities:
Repayment of long-term debt and capital leases	—			—			(129,300		)	(902		)	—			(130,202		)
Net borrowings on revolving line of credit	—			—			7,313			—			—			7,313
Borrowings under accounts receivable securitization	—			—			—			80,000			—			80,000
Repayment of accounts receivable securitization	—			—			—			(119,000		)	—			(119,000		)
Proceeds from long-term debt	—			—			16,000			7,528			—			23,528
Payment of deferred loan costs	—			—			(1,332		)	(851		)	—			(2,183		)
Distribution to Central stockholders, pre-acquisition	—			—			(1,988		)	—			—			(1,988		)
Issuance of Central loan receivable, pre-acquisition	—			—			(30,000		)	—			—			(30,000		)
Proceeds from exercise of stock options	6,182			—			—			—			—			6,182
Income tax benefit from exercise of stock options	(504		)	—			—			—			—			(504		)
Dividend to parent	—			—			—			(6,800		)	6,800			—
Capital contribution	—			—			—			1,160			(1,160		)	—
Repayment of intercompany notes payable	—			—			—			(3,399		)	3,399			—
Net funding (to) from affiliates	(62,973		)	14,029			(14,052		)	62,996			—			—
Net cash provided by (used in) financing activities	(57,295		)	14,029			(153,359		)	20,732			9,039			(166,854		)
Net increase (decrease) in cash and cash equivalents	—			—			(14,804		)	4,718			—			(10,086		)
Cash and cash equivalents at beginning of period	—			—			43,877			9,719			—			53,596
Cash and cash equivalents at end of period	$	—		$	—		$	29,073		$	14,437		$	—		$	43,510

Investments_Tables

Investments (Tables)	6 Months Ended
	Jun. 30, 2014
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 losses, and estimated fair value of the Company’s restricted investments as of June 30, 2014 and December 31, 2013 (in thousands):
		30-Jun-14
		Cost or		Gross Unrealized				Estimated
		Amortized		Gains		Temporary		Fair
		Cost				Losses		Value
	U.S. corporate securities	$	22,042	$	8	$	4	$	22,046
	Foreign corporate securities	1,509		—		—		1,509
	Negotiable certificate of deposits	2,115		—		1		2,114
	Total restricted investments	$	25,666	$	8	$	5	$	25,669
		December 31, 2013
		Cost or		Gross Unrealized				Estimated
		Amortized				Temporary		Fair
		Cost		Gains		Losses		Value
	U.S. corporate securities	$	20,197	$	2	$	7	$	20,192
	Foreign corporate securities	3,502		—		—		3,502
	Negotiable certificate of deposits	2,115		—		1		2,114
	Total restricted investments	$	25,814	$	2	$	8	$	25,808

Intangible_Assets_Tables

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule Of Intangible Assets	'
	Intangible assets as of June 30, 2014 and December 31, 2013 were as follows (in thousands):
		30-Jun-14			31-Dec-13
	Customer Relationship:
	Gross carrying value	$	275,324		$	275,324
	Accumulated amortization	(148,021		)	(139,614		)
	Trade Name:
	Gross carrying value	181,037			181,037
	Intangible assets, net	$	308,340		$	316,747
Amortization expense related to the 2007 going private transaction	'
	The following table presents amortization of intangibles for the three and six months ended June 30, 2014 and 2013, 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 June 30,						Six Months Ended June 30,
		2014			2013			2014		2013
	Amortization of intangible assets related to 2007 going private transaction	$	3,912		$	3,912		$	7,824	$	7,824
	Amortization of intangible assets related to intangible assets existing prior to the 2007 going private transaction	291			291			583		583
	Amortization of intangibles	$	4,203		$	4,203		$	8,407	$	8,407

Assets_Held_For_Sale_Tables

Assets Held For Sale (Tables)	6 Months Ended
	Jun. 30, 2014
Text Block [Abstract]	'
Schedule Of Assets Held For Sale	'
	Assets held for sale as of June 30, 2014 and December 31, 2013 were as follows (in thousands):
		30-Jun-14		31-Dec-13
	Land and facilities	$	5,141	$	14,627
	Revenue equipment	3,553		4,641
	Assets held for sale	$	8,694	$	19,268

Debt_And_Financing_Transaction1

Debt And Financing Transactions (Tables)	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Schedule Of Long-Term Debt Outstanding	'
	Other than the Company’s accounts receivable securitization as discussed in Note 8 and its outstanding capital lease obligations as discussed in Note 9, the Company had long-term debt outstanding as of June 30, 2014 and December 31, 2013 as follows (in thousands):
		30-Jun-14		31-Dec-13
	Senior secured first lien delayed draw term loan A tranche due June 2019	$	50,000	$	—
	Senior secured first lien term loan B tranche due June 2021, net of $992 OID as of June 30, 2014	398,008		—
	Senior secured first lien term loan B-1 tranche due December 2016	—		229,000
	Senior secured first lien term loan B-2 tranche due December 2017	—		410,000
	Senior second priority secured notes due November 15, 2018, net of $5,112 and $6,175 OID as of June 30, 2014 and December 31, 2013, respectively	455,711		493,825
	Other	11,765		17,480
	Total	915,484		1,150,305
	Less: current portion	23,763		11,387
	Long-term debt	$	891,721	$	1,138,918

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Classification Of Gains And Losses On Interest Rate Derivative Contracts Designated As Hedging Instruments	'
	The following table presents the changes in fair value, pre-tax of derivatives designated as cash flow hedges had on accumulated OCI and earnings (in thousands):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Amount of (loss) income recognized in OCI on derivatives (effective portion)	$	—		$	(174	)	$	—		$	145
	Amount of loss reclassified from accumulated OCI into income as “Derivative interest expense” (effective portion)	$	(1,482	)	$	(468	)	$	(2,796	)	$	(959	)
Pre-Tax Gains And Losses On Interest Rate Derivative Contracts De-Designated As Hedging Instruments	'
	The following tables presents information about pre-tax gains and losses recognized in earnings on the Company’s interest rate derivative contracts that were de-designated on February 28, 2013 as hedging instruments under ASC Topic 815, is as follows (in thousands):
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Amount of loss recognized in income as “Derivative interest expense”	$	(136	)	$	(64	)	$	(475	)	$	(135	)

Fair_Value_Measurement_Tables

Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
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 June 30, 2014 and December 31, 2013 (in thousands):
		30-Jun-14				31-Dec-13
		Carrying		Estimated		Carrying		Estimated
		Value		Fair Value		Value		Fair Value
	Financial Assets:
	Restricted investments	$	25,666	$	25,669	$	25,814	$	25,808
	Financial Liabilities:
	Senior secured first lien delayed draw term loan A tranche	50,000		50,000		—		—
	Senior secured first lien term loan B tranche	398,008		398,259		—		—
	Senior secured first lien term loan B-1 tranche (2013 Agreement)	—		—		229,000		230,031
	Senior secured first lien term loan B-2 tranche (2013 Agreement)	—		—		410,000		412,358
	Senior second priority secured notes	455,711		491,029		493,825		549,059
	Securitization of accounts receivable	319,000		319,000		264,000		264,000
	Central Financial Liabilities:
	Various notes payables to financing companies, due dates through May 2015					2,190		2,190
Liabilities That Were Measured At Estimated Fair Value On Recurring Basis	'
	As of June 30, 2014 and December 31, 2013, no assets of the Company were measured at estimated fair value on a recurring basis. As of June 30, 2014 and December 31, 2013, information about inputs into the estimated fair value measurements of each major category of the Company’s liabilities that were measured at estimated fair value on a recurring basis in periods subsequent to their initial recognition was as follows (in thousands):
				Fair Value Measurements at Reporting Date Using
	Description	Total		Quoted Prices in		Significant		Significant
		Estimated		Active  Markets for		Other		Unobservable
		Fair Value		Identical Assets or		Observable		Inputs
				Liabilities		Inputs		(Level 3)
				(Level 1)		(Level 2)
	As of June 30, 2014
	Interest rate swaps	$	9,332	$	—	$	9,332	$	—
	As of December 31, 2013
	Interest rate swaps	$	11,768	$	—	$	11,768	$	—

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Calculation Of Basic And Diluted Earnings Per Share Attributable To Stockholders	'
	The computation of basic and diluted earnings per share is as follows:
			Three Months Ended June 30,				Six Months Ended June 30,
			2014		2013		2014		2013
			(In thousands, except
			per share amounts)
	Net income		$	40,198	$	49,879	$	52,503	$	80,171
	Basic:
	Weighted average common shares outstanding		141,308		139,989		141,143		139,839
	Diluted:
	Dilutive effect of stock options		2,085		1,849		2,122		1,813
	Total weighted average diluted shares outstanding		143,393		141,838		143,265		141,652
	Anti-dilutive shares excluded from the diluted earnings per share calculation (1)		—		171		—		171
	Earnings per share:
	Basic earnings per share		$	0.28	$	0.36	$	0.37	$	0.57
	Diluted earnings per share		$	0.28	$	0.35	$	0.37	$	0.57
	-1	Impact of outstanding options to purchase shares of the Company’s Class A common stock were anti-dilutive because the options exercise price was greater than the average market price of the common shares and were excluded from the calculation of diluted earnings per share.

Segment_Information_Tables

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2014
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 June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Truckload	$	575,481		$	588,724		$	1,128,538		$	1,148,319
	Dedicated	223,098			182,651			416,751			361,877
	Central Refrigerated	106,911			111,238			213,674			217,640
	Intermodal	100,911			90,994			192,224			174,258
	Subtotal	1,006,401			973,607			1,951,187			1,902,094
	Nonreportable segments	83,491			71,915			159,157			143,972
	Intersegment eliminations	(13,994		)	(16,451		)	(26,000		)	(35,387		)
	Consolidated operating revenue	$	1,075,898		$	1,029,071		$	2,084,344		$	2,010,679
		Operating Income (Loss)
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Truckload	$	69,596		$	64,614		$	101,503		$	107,017
	Dedicated	21,112			24,263			32,642			43,217
	Central Refrigerated	3,662			5,660			6,082			10,381
	Intermodal	(495		)	788			(1,421		)	(816		)
	Subtotal	93,875			95,325			138,806			159,799
	Nonreportable segments	147			4,941			1,386			10,185
	Consolidated operating income	$	94,022		$	100,266		$	140,192		$	169,984
		Depreciation and Amortization
		Expense
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013
	Truckload	$	28,316		$	32,387		$	58,561		$	63,380
	Dedicated	13,670			11,223			26,075			21,728
	Central Refrigerated	2,914			3,821			6,020			7,799
	Intermodal	2,583			2,318			4,951			4,745
	Subtotal	47,483			49,749			95,607			97,652
	Nonreportable segments	7,308			7,131			15,359			14,098
	Consolidated depreciation and amortization expense	$	54,791		$	56,880		$	110,966		$	111,750

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Summary of accumulated other comprehensive income	'
	The following table is a reconciliation of accumulated other comprehensive loss by component (in thousands):
		Derivative Financial Instruments			Foreign Currency Transactions			Accumulated Other Comprehensive Loss
	Balance as of December 31, 2013	$	(6,245	)	$	83		$	(6,162	)
	Other comprehensive loss before reclassifications	—			—			—
	Amounts reclassified from accumulated other comprehensive loss	1,719			—			1,719
	Net current-period other comprehensive income	1,719			—			1,719
	Balance as of June 30, 2014	$	(4,526	)	$	83		$	(4,443	)
	All amounts are net-of-tax. Amounts in parenthesis indicate debits, or loss.
Reclassifications out of accumulated other comprehensive income	'
	The following table presents details about reclassifications out of accumulated other comprehensive loss for the three and six months ended June 30, 2014 and 2013 (in thousands):
		Amounts Reclassified from Accumulated Other Comprehensive Loss
		Three Months Ended June 30,						Six Months Ended June 30,
		2014			2013			2014			2013			Statement of Income Classifications
	Gains and losses on cash flow hedging:
	Interest rate swaps	$	1,482		$	468		$	2,796		$	959		Derivative interest expense
	Income tax benefit	(571		)	(180		)	(1,077		)	(369		)	Income tax expense
		$	911		$	288		$	1,719		$	590		Net income

Guarantor_Condensed_Consolidat1

Guarantor Condensed Consolidating Financial Statements (Tables)	6 Months Ended
	Jun. 30, 2014
Text Block [Abstract]	'
Condensed Consolidating Balance Sheet	'
	Condensed consolidating balance sheet as of June 30, 2014 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Cash and cash equivalents	$	—		$	—		$	66,487		$	7,041		$	—		$	73,528
	Restricted cash	—			—			—			52,815			—			52,815
	Restricted investments, held to maturity, amortized cost	—			—			—			25,666			—			25,666
	Accounts receivable, net	—			—			31,620			431,974			(3,236		)	460,358
	Intercompany receivable	131,608			344,418			—			57,073			(533,099		)	—
	Other current assets	9,542			—			118,297			16,248			(4,031		)	140,056
	Total current assets	141,150			344,418			216,404			590,817			(540,366		)	752,423
	Property and equipment, net	—			—			1,412,170			38,182			—			1,450,352
	Investment in subsidiaries	296,176			909,847			1,010,290			—			(2,216,313		)	—
	Other assets	10,453			2,028			65,534			3,846			(31,126		)	50,735
	Intangible assets, net	—			—			299,071			9,269			—			308,340
	Goodwill	—			—			246,977			6,279			—			253,256
	Total assets	$	447,779		$	1,256,293		$	3,250,446		$	648,393		$	(2,787,805	)	$	2,815,106
	Intercompany payable	$	—		$	4,031		$	533,099		$	—		$	(537,130	)	$	—
	Current portion of long-term debt and obligations under capital leases	2,430			—			79,745			23,242			(19,455		)	85,962
	Other current liabilities	17,430			3,814			308,348			23,980			(3,236		)	350,336
	Total current liabilities	19,860			7,845			921,192			47,222			(559,821		)	436,298
	Long-term debt and obligations under capital leases, less current portion	—			455,711			557,673			4,013			(772		)	1,016,625
	Deferred income taxes	—			—			457,286			8,112			(10,899		)	454,499
	Revolving line of credit	—			—			99,000			—			—			99,000
	Securitization of accounts receivable	—			—			—			319,000			—			319,000
	Other liabilities	—			—			89,532			52,344			—			141,876
	Total liabilities	19,860			463,556			2,124,683			430,691			(571,492		)	2,467,298
	Total stockholders’ equity	427,919			792,737			1,125,763			217,702			(2,216,313		)	347,808
	Total liabilities and stockholders’ equity	$	447,779		$	1,256,293		$	3,250,446		$	648,393		$	(2,787,805	)	$	2,815,106
	Condensed consolidating balance sheet as of December 31, 2013 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Cash and cash equivalents	$	—		$	—		$	54,564		$	4,614		$	—		$	59,178
	Restricted cash	—			—			—			50,833			—			50,833
	Restricted investments, held to maturity, amortized cost	—			—			—			25,814			—			25,814
	Accounts receivable, net	—			—			28,997			394,044			(4,605		)	418,436
	Intercompany receivable	85,498			400,569			—			55,799			(541,866		)	—
	Other current assets	37,022			—			127,775			16,270			(1,296		)	179,771
	Total current assets	122,520			400,569			211,336			547,374			(547,767		)	734,032
	Property and equipment, net	—			—			1,407,414			40,393			—			1,447,807
	Investment in subsidiaries	239,432			870,599			983,289			—			(2,093,320		)	—
	Other assets	11,780			2,355			83,967			4,639			(45,575		)	57,166
	Intangible assets, net	—			—			307,092			9,655			—			316,747
	Goodwill	—			—			246,977			6,279			—			253,256
	Total assets	$	373,732		$	1,273,523		$	3,240,075		$	608,340		$	(2,686,662	)	$	2,809,008
	Intercompany payable	$	—		$	1,296		$	542,772		$	—		$	(544,068	)	$	—
	Current portion of long-term debt and obligations under capital leases	6,036			—			64,970			36,626			(32,576		)	75,056
	Other current liabilities	2,281			6,389			277,921			27,170			(4,449		)	309,312
	Total current liabilities	8,317			7,685			885,663			63,796			(581,093		)	384,368
	Long-term debt and obligations under capital leases, less current portion	—			493,825			747,918			5,046			(25		)	1,246,764
	Deferred income taxes	—			—			487,670			8,754			(12,224		)	484,200
	Securitization of accounts receivable	—			—			—			264,000			—			264,000
	Revolving line of credit	—			—			17,000			—			—			17,000
	Other liabilities	—			—			73,774			55,315			—			129,089
	Total liabilities	8,317			501,510			2,212,025			396,911			(593,342		)	2,525,421
	Total stockholders’ equity	365,415			772,013			1,028,050			211,429			(2,093,320		)	283,587
	Total liabilities and stockholders’ equity	$	373,732		$	1,273,523		$	3,240,075		$	608,340		$	(2,686,662	)	$	2,809,008
Condensed Consolidating Statement Of Operations	'
	Condensed consolidating statement of income for the three months ended June 30, 2014 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Operating revenue	$	—		$	—		$	1,054,756		$	39,206		$	(18,064	)	$	1,075,898
	Operating expenses:
	Salaries, wages and employee benefits	1,291			—			228,897			7,905			—			238,093
	Operating supplies and expenses	679			1			84,815			1,296			(2,714		)	84,077
	Fuel	—			—			146,495			7,182			—			153,677
	Purchased transportation	—			—			349,494			2,595			(11,840		)	340,249
	Rental expense	—			—			55,524			776			(165		)	56,135
	Insurance and claims	1,680			—			25,457			9,529			(3,345		)	33,321
	Depreciation and amortization of property and equipment	—			—			53,473			1,318			—			54,791
	Amortization of intangibles	—			—			4,010			193			—			4,203
	Gain on disposal of property and equipment	—			—			(8,312		)	—			—			(8,312		)
	Communication and utilities	—			—			7,441			275			—			7,716
	Operating taxes and licenses	62			—			15,063			2,801			—			17,926
	Total operating expenses	3,712			1			962,357			33,870			(18,064		)	981,876
	Operating income (loss)	(3,712		)	(1		)	92,399			5,336			—			94,022
	Interest expense, net	19			11,918			9,381			1,061			—			22,379
	Other (income) expenses, net	(42,587		)	(33,347		)	(23,638		)	(3,485		)	109,337			6,280
	Income before income taxes	38,856			21,428			106,656			7,760			(109,337		)	65,363
	Income tax expense (benefit)	(1,342		)	(5,095		)	28,896			2,706			—			25,165
	Net income (loss)	$	40,198		$	26,523		$	77,760		$	5,054		$	(109,337	)	$	40,198
	Condensed consolidating statement of income for the three months ended June 30, 2013 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Operating revenue	$	—		$	—		$	1,009,881		$	40,813		$	(21,623	)	$	1,029,071
	Operating expenses:
	Salaries, wages and employee benefits	833			—			215,346			7,673			—			223,852
	Operating supplies and expenses	631			4			75,194			5,041			(1,874		)	78,996
	Fuel	—			—			154,059			6,827			—			160,886
	Purchased transportation	—			—			317,745			3,641			(13,269		)	308,117
	Rental expense	—			—			42,259			876			(139		)	42,996
	Insurance and claims	—			—			29,562			10,376			(6,341		)	33,597
	Depreciation and amortization of property and equipment	—			—			55,720			1,160			—			56,880
	Amortization of intangibles	—			—			4,010			193			—			4,203
	Gain on disposal of property and equipment	—			—			(5,178		)	35			—			(5,143		)
	Communication and utilities	—			—			5,675			226			—			5,901
	Operating taxes and licenses	—			—			15,719			2,801			—			18,520
	Total operating expenses	1,464			4			910,111			38,849			(21,623		)	928,805
	Operating income (loss)	(1,464		)	(4		)	99,770			1,964			—			100,266
	Interest expense, net	—			12,914			10,405			1,429			—			24,748
	Other (income) expenses, net	(20,844		)	(38,501		)	(30,739		)	(2,981		)	91,741			(1,324		)
	Income (loss) before income taxes	19,380			25,583			120,104			3,516			(91,741		)	76,842
	Income tax expense (benefit)	(23,561		)	(4,793		)	53,821			1,496			—			26,963
	Net income (loss)	$	42,941		$	30,376		$	66,283		$	2,020		$	(91,741	)	$	49,879
	Condensed consolidating statement of income for the six months ended June 30, 2014 (in thousands)
		Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Services			Subsidiaries			Guarantor			for
		Company			Holdings, Inc.						Subsidiaries			Consolidation
		(Parent)			(Issuer)
	Operating revenue	$	—		$	—		$	2,043,749		$	77,728		$	(37,133	)	$	2,084,344
	Operating expenses:
	Salaries, wages and employee benefits	2,352			—			449,431			15,676			—			467,459
	Operating supplies and expenses	1,363			1			161,090			7,924			(5,476		)	164,902
	Fuel	—			—			295,627			14,072			—			309,699
	Purchased transportation	—			—			679,006			5,052			(24,640		)	659,418
	Rental expense	—			—			106,516			1,666			(328		)	107,854
	Insurance and claims	3,395			—			60,392			18,671			(6,689		)	75,769
Depreciation and amortization of property and equipment	—			—			108,241			2,725			—			110,966
Amortization of intangibles	—			—			8,021			386			—			8,407
Gain on disposal of property and equipment	—			—			(11,471		)	—			—			(11,471		)
Communication and utilities	—			—			14,321			565			—			14,886
Operating taxes and licenses	62			—			30,580			5,621			—			36,263
Total operating expenses	7,172			1			1,901,754			72,358			(37,133		)	1,944,152
Operating income (loss)	(7,172		)	(1		)	141,995			5,370			—			140,192
Interest expense, net	49			24,699			19,325			2,418			—			46,491
Other (income) expenses, net	(56,743		)	(34,510		)	(16,863		)	(6,547		)	122,992			8,329
Income (loss) before income taxes	49,522			9,810			139,533			9,499			(122,992		)	85,372
Income tax expense (benefit)	(2,981		)	(10,914		)	43,541			3,223			—			32,869
Net income (loss)	$	52,503		$	20,724		$	95,992		$	6,276		$	(122,992	)	$	52,503
Condensed consolidating statement of income for the six months ended June 30, 2013 (in thousands)
	Swift			Swift			Guarantor			Non-			Eliminations			Consolidated
	Transportation			Services			Subsidiaries			Guarantor			for
	Company			Holdings, Inc.						Subsidiaries			Consolidation
	(Parent)			(Issuer)
Operating revenue	$	—		$	—		$	1,973,623		$	79,439		$	(42,383	)	$	2,010,679
Operating expenses:
Salaries, wages and employee benefits	1,378			—			434,067			14,892			—			450,337
Operating supplies and expenses	1,130			4			145,532			8,029			(3,632		)	151,063
Fuel	—			—			315,917			13,085			—			329,002
Purchased transportation	—			—			619,395			6,619			(25,741		)	600,273
Rental expense	—			—			82,149			1,797			(327		)	83,619
Insurance and claims	—			—			56,293			21,525			(12,683		)	65,135
Depreciation and amortization of property and equipment	—			—			109,550			2,200			—			111,750
Amortization of intangibles	—			—			8,021			386			—			8,407
Gain on disposal of property and equipment	—			—			(8,011		)	20			—			(7,991		)
Communication and utilities	—			—			12,043			423			—			12,466
Operating taxes and licenses	—			—			31,169			5,465			—			36,634
Total operating expenses	2,508			4			1,806,125			74,441			(42,383		)	1,840,695
Operating income (loss), net	(2,508		)	(4		)	167,498			4,998			—			169,984
Interest expense, net	—			25,827			22,753			2,501			—			51,081
Other (income) expenses	(44,343		)	(45,448		)	(31,271		)	(5,347		)	123,491			(2,918		)
Income before income taxes	41,835			19,617			176,016			7,844			(123,491		)	121,821
Income tax expense (benefit)	(24,447		)	(9,583		)	72,336			3,344			—			41,650
Net income (loss)	$	66,282		$	29,200		$	103,680		$	4,500		$	(123,491	)	$	80,171
Condensed Consolidating Statement Of Comprehensive Income	'
	Condensed consolidating statement of comprehensive income for the three months ended June 30, 2014 (in thousands)
		Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
		Company			(Issuer)						Subsidiaries			Consolidation
		(Parent)
	Net income	$	40,198		$	26,523		$	77,760		$	5,054		$	(109,337	)	$	40,198
	Other comprehensive income before income taxes:
	Accumulated losses on derivatives reclassified to derivative interest expense	—			—			1,482			—			—			1,482
	Change in fair value of interest rate swaps	—			—			—			—			—			—
	Other comprehensive income before income taxes	—			—			1,482			—			—			1,482
	Income tax effect of items of other comprehensive income	—			—			(571		)	—			—			(571		)
	Total comprehensive income	$	40,198		$	26,523		$	78,671		$	5,054		$	(109,337	)	$	41,109
	Condensed consolidating statement of comprehensive income for the three months ended June 30, 2013 (in thousands)
		Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
		Company			(Issuer)						Subsidiaries			Consolidation
		(Parent)
	Net income (loss)	$	42,941		$	30,376		$	66,283		$	2,020		$	(91,741	)	$	49,879
	Other comprehensive income before income taxes:
	Accumulated losses on derivatives reclassified to derivative interest expense	—			—			468			—			—			468
	Change in fair value of interest rate swaps	—			—			174			—			—			174
	Other comprehensive income before income taxes	—			—			642			—			—			642
	Income tax effect of items of other comprehensive income	—			—			(244		)	—			—			(244		)
	Total comprehensive income (loss)	$	42,941		$	30,376		$	66,681		$	2,020		$	(91,741	)	$	50,277
Condensed Consolidating Statement Of Cash Flows	'
	ndensed consolidating statement of cash flows for the six months ended June 30, 2014 (in thousands)
		Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
		Company			(Issuer)						Subsidiaries			Consolidation
		(Parent)
	Net cash provided by (used in) operating activities	$	42,070		$	(56,151	)	$	233,111		$	(35,547	)	$	—		$	183,483
	Cash flows from investing activities:
	Increase in restricted cash	—			—			—			(1,982		)	—			(1,982		)
	Change in restricted investments	—			—			—			(113		)	—			(113		)
	Proceeds from sale of property and equipment	—			—			77,088						—			77,088
	Capital expenditures	—			—			(134,554		)	(514		)	—			(135,068		)
	Payments received on notes receivable				—			2,226			—			—			2,226
	Expenditures on assets held for sale	—			—			(1,991		)	—			—			(1,991		)
	Payments received on assets held for sale	—			—			13,603			—			—			13,603
	Payments received on equipment sale receivables	—			—			385			—			—			385
	Net cash used in investing activities	—			—			(43,243		)	(2,609		)	—			(45,852		)
	Cash flows from financing activities:
	Proceeds from long-term debt	—			—			450,000			—			—			450,000
	Payment of deferred loan costs	—			—			(10,541		)	—			—			(10,541		)
	Borrowings under accounts receivable securitization	—			—			—			95,000			—			95,000
	Repayment of long-term debt and capital leases	(3,607		)	—			(701,732		)	(2,047		)	—			(707,386		)
	Net borrowings on revolving line of credit	—			—			82,000			—			—			82,000
	Repayment of accounts receivable securitization	—			—			—			(40,000		)	—			(40,000		)
	Net funding (to) from affiliates	(46,109		)	56,151			2,328			(12,370		)	—			—
	Proceeds from exercise of stock options	5,811			—			—			—			—			5,811
	Income tax benefit from exercise of stock options	1,835			—			—			—			—			1,835
	Net cash provided by (used in) financing activities	(42,070		)	56,151			(177,945		)	40,583			—			(123,281		)
	Net increase in cash and cash equivalents	—			—			11,923			2,427			—			14,350
	Cash and cash equivalents at beginning of period	—			—			54,564			4,614			—			59,178
	Cash and cash equivalents at end of period	$	—		$	—		$	66,487		$	7,041		$	—		$	73,528
	Condensed consolidating statement of cash flows for the six months ended June 30, 2013 (in thousands)
		Swift			Swift Services			Guarantor			Non-			Eliminations			Consolidated
		Transportation			Holdings, Inc.			Subsidiaries			Guarantor			for
		Company			(Issuer)						Subsidiaries			Consolidation
		(Parent)
	Net cash provided by (used in) operating activities	$	57,295		$	(14,029	)	$	222,329		$	(19,949	)	$	—		$	245,646
	Cash flows from investing activities:
	Decrease in restricted cash	—			—			—			8,984			—			8,984
	Change in restricted investments	—			—			—			(4,680		)	—			(4,680		)
	Proceeds from sale of property and equipment	—			—			47,125			136			—			47,261
	Capital expenditures	—			—			(163,815		)	(505		)	—			(164,320		)
	Payments received on notes receivable	—			—			2,074			—			—			2,074
	Expenditures on assets held for sale	—			—			(1,614		)	—			—			(1,614		)
	Payments received on assets held for sale	—			—			22,773			—			—			22,773
	Payments received on equipment sale receivables	—			—			644			—			—			644
	Dividends from subsidiary	—			—			6,800			—			(6,800		)	—
	Payments received on intercompany notes payable	—			—			3,399			—			(3,399		)	—
	Capital contribution to subsidiary	—			—			(1,160		)	—			1,160			—
	Net cash provided by (used in) investing activities	—			—			(83,774		)	3,935			(9,039		)	(88,878		)
	Cash flows from financing activities:
	Repayment of long-term debt and capital leases	—			—			(129,300		)	(902		)	—			(130,202		)
	Net borrowings on revolving line of credit	—			—			7,313			—			—			7,313
	Borrowings under accounts receivable securitization	—			—			—			80,000			—			80,000
	Repayment of accounts receivable securitization	—			—			—			(119,000		)	—			(119,000		)
	Proceeds from long-term debt	—			—			16,000			7,528			—			23,528
	Payment of deferred loan costs	—			—			(1,332		)	(851		)	—			(2,183		)
	Distribution to Central stockholders, pre-acquisition	—			—			(1,988		)	—			—			(1,988		)
	Issuance of Central loan receivable, pre-acquisition	—			—			(30,000		)	—			—			(30,000		)
	Proceeds from exercise of stock options	6,182			—			—			—			—			6,182
	Income tax benefit from exercise of stock options	(504		)	—			—			—			—			(504		)
	Dividend to parent	—			—			—			(6,800		)	6,800			—
	Capital contribution	—			—			—			1,160			(1,160		)	—
	Repayment of intercompany notes payable	—			—			—			(3,399		)	3,399			—
Net funding (to) from affiliates	(62,973		)	14,029			(14,052		)	62,996			—			—
Net cash provided by (used in) financing activities	(57,295		)	14,029			(153,359		)	20,732			9,039			(166,854		)
Net increase (decrease) in cash and cash equivalents	—			—			(14,804		)	4,718			—			(10,086		)
Cash and cash equivalents at beginning of period	—			—			43,877			9,719			—			53,596
Cash and cash equivalents at end of period	$	—		$	—		$	29,073		$	14,437		$	—		$	43,510

Basis_Of_Presentation_Detail

Basis Of Presentation (Detail)	6 Months Ended
	Jun. 30, 2014
	Segment
	Vehicle
Accounting Policies [Abstract]	'
Number of reportable operating segment	4
Number of company operated national terminal network and tractor fleet	18,600
Number of tractors driven by company drivers	13,600
Number of owner-operator tractors	5,000
Number of fleet of trailers	57,500
Number of intermodal containers	8,700

Income_Taxes_Detail

Income Taxes (Detail) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Income Tax Contingency [Line Items]	'	'
Effective tax rate	38.50%	34.20%
Increase (Decrease) In Expected Effective Tax Rate	'	4.30%
Accrued interest and penalties	$1.20	'
Tax years subject to examination	'2008 through 2012	'
Maximum [Member]	'	'
Income Tax Contingency [Line Items]	'	'
State of California and other state jurisdictions years	'2013	'

Investments_Amortized_Cost_Gro

Investments (Amortized Cost, Gross Unrealized Gains And Losses, Estimated Fair Value Of Fixed Maturity Securities) (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
	Securities	Securities
Schedule of Held-to-maturity Securities [Line Items]	'	'
Securities with unrealized losses for less than 12 months	9	15
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	22,042	20,197
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	8	2
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	4	7
Estimated Fair Value	22,046	20,192
Foreign Corporate Securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Cost or Amortized Cost	1,509	3,502
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	0	0
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	0	0
Estimated Fair Value	1,509	3,502
Negotiable Certificate Of Deposits [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Cost or Amortized Cost	2,115	2,115
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	0	0
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	1	1
Estimated Fair Value	2,114	2,114
Total Restricted Investments [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Cost or Amortized Cost	25,666	25,814
Held-To-Maturity Securities, Accumulated Unrecognized Holding Gain	8	2
Held-To-Maturity Securities, Accumulated Unrecognized Holding Loss	5	8
Estimated Fair Value	25,669	25,808

Intangible_Assets_Schedule_Of_

Intangible Assets (Schedule Of Intangible Assets) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Intangible Asset Excluding Goodwill [Line Items]	'	'
Intangible assets, net	$308,340	$316,747
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	($148,021)	($139,614)

Intangible_Assets_Narrative_De

Intangible Assets (Narrative) (Detail) (USD $)

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

In Thousands, unless otherwise specified

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2007

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

9-May-07

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Going Private Transaction [Member]

2007 Going private transaction [Member]

2007 Going private transaction [Member]

2007 Going private transaction [Member]

2007 Going private transaction [Member]

Customer Relationship [Member]

Customer Relationship [Member]

Customer Relationship [Member]

2007 Prior To Going Private Transaction [Member]

2007 Prior To Going Private Transaction [Member]

2007 Prior To Going Private Transaction [Member]

2007 Prior To Going Private Transaction [Member]

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Gross

'

'

'

'

$261,200

'

'

'

'

'

$275,324

$275,324

'

'

'

'

Acquisition calculated on declining balance

'

'

150.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated useful life of intangible assets in years

'

'

'

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

Amortization period of intangible assets in years

'

'

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

'

Amortization of Intangible Assets

$4,203

$4,203

$8,407

$8,407

'

$3,912

$3,912

$7,824

$7,824

'

'

'

$291

$291

$583

$583

Assets_Held_For_Sale_Schedule_

Assets Held For Sale (Schedule Of Assets Held For Sale) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Long Lived Assets Held-for-sale [Line Items]	'	'
Assets held for sale	$8,694	$19,268
Land And Facilities [Member]	'	'
Long Lived Assets Held-for-sale [Line Items]	'	'
Assets held for sale	5,141	14,627
Revenue Equipment [Member]	'	'
Long Lived Assets Held-for-sale [Line Items]	'	'
Assets held for sale	$3,553	$4,641

Assets_Held_For_Sale_Narrative

Assets Held For Sale (Narrative) (Detail) (USD $)	3 Months Ended	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014
	property
Assets Held-for-sale, Long Lived [Abstract]	'	'
Period of time assets are expected to be sold, months	'	'12 months
Number of Properties Sold	2	'
Assets Held-for-sale, at Carrying Value	$9.70	$9.70

Debt_And_Financing_Transaction2

Debt And Financing Transactions (Schedule Of Long-Term Debt Outstanding) (Detail) (USD $)	Jun. 30, 2014	Jun. 09, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'	'
Total	$915,484	'	$1,150,305
Other Long-term Debt	11,765	'	17,480
Less: current portion	23,763	'	11,387
Long-term Debt, Excluding Current Maturities	891,721	'	1,138,918
Senior Second Priority Secured Notes Due November 15, 2018 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	455,711	'	493,825
Debt Instrument, Unamortized Discount	5,112	'	6,175
2014 Agreement, Term Loan B [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Debt Instrument, Unamortized Discount	992	'	'
First Lien Term Loan B 1 [Member] | Second Amended Agreement [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	0	'	229,000
First Lien Term Loan B 2 [Member] | Second Amended Agreement [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	0	'	410,000
Secured Debt [Member] | 2014 Agreement, Term Loan A [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	50,000	500,000	0
Secured Debt [Member] | Notes Payable, Due May 2015 [Member] | Central Refrigerated Service, Inc. [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	1,755	'	'
Secured Debt [Member] | 2014 Agreement, Term Loan B [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Total	$398,008	$400,000	$0

Debt_And_Financing_Transaction3

Debt And Financing Transactions (Narrative) (Detail) (USD $)

3 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

0 Months Ended

1 Months Ended

6 Months Ended

0 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

21 Months Ended

24 Months Ended

3 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 09, 2014

Jun. 30, 2014

Jun. 09, 2014

Jun. 09, 2014

Jun. 30, 2014

Jun. 09, 2014

Jun. 09, 2014

Jun. 09, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 09, 2014

Dec. 31, 2013

Jun. 09, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 09, 2014

Dec. 31, 2013

Jun. 09, 2014

Dec. 31, 2010

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 07, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Mar. 07, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Mar. 07, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2016

Mar. 31, 2019

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Minimum [Member]

Maximum [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Credit Facility [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan B [Member]

2014 Agreement, Term Loan B [Member]

2014 Agreement, Term Loan B [Member]

2014 Agreement, Term Loan B [Member]

2014 Agreement, Term Loan B [Member]

Senior Second Priority Secured Notes [Member]

Senior Second Priority Secured Notes [Member]

Senior Second Priority Secured Notes [Member]

2012 Agreement [Member]

2012 Agreement [Member]

2012 Agreement [Member]

2012 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

2013 Agreement [Member]

Central Refrigerated Service, Inc. [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Scenario, Forecast [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Letter of Credit [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Workers' Compensation And Self-Insurance Liability [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 1 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

First Lien Term Loan B 2 [Member]

Notes Payable, Due May 2015 [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan A [Member]

2014 Agreement, Term Loan B [Member]

2014 Agreement, Term Loan B [Member]

Base Rate [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Maximum [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Maximum [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

Base Rate [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

London Interbank Offered Rate (LIBOR) [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt, Excluding Current Maturities

$891,721,000

'

$891,721,000

'

$1,138,918,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred loan costs

13,200,000

'

13,200,000

'

8,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variable interest rate

'

'

'

'

'

'

'

'

'

'

0.50%

'

1.50%

2.25%

1.25%

'

'

'

'

2.00%

'

'

'

'

3.00%

'

'

'

'

'

'

'

'

'

'

3.00%

2.00%

3.25%

2.25%

'

'

'

2.75%

'

'

'

'

'

3.00%

'

'

'

'

'

1.50%

2.25%

2.75%

3.00%

Minimum LIBOR rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

0.0075

'

'

'

'

'

'

'

'

'

0.01

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Credit agreement, maximum borrowing capacity

'

'

'

'

'

'

'

500,000,000

'

450,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

350,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Frequency of periodic payment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'quarterly

'

'

'

'

'quarterly

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal periodic payment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,600,000

11,300,000

'

'

'

'

Letters of credit amount outstanding

'

'

'

'

'

'

'

'

99,000,000

'

'

'

'

'

'

106,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Available balance under revolving line of credit

'

'

'

'

'

'

'

'

244,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding letters of credit fees incurred

'

'

'

'

'

0.25%

0.35%

'

0.30%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Face value of second priority senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

229,000,000

'

'

'

'

'

371,000,000

'

'

'

'

'

'

'

'

'

'

Rate at which interest accrues

'

'

'

'

'

'

'

'

2.15%

'

'

2.00%

'

'

'

'

2.15%

'

'

'

'

3.75%

'

'

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from issuance of senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

490,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Original issue discount on debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Repurchased Face Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

39,200,000

39,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Redemption premium

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.105

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of long-term debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

44,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gains (losses) on extinguishment of debt

-6,990,000

0

-9,903,000

-5,044,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-1,800,000

-4,700,000

'

'

'

'

-5,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt

$915,484,000

'

$915,484,000

'

$1,150,305,000

'

'

'

'

'

'

'

'

'

'

'

$50,000,000

$500,000,000

$0

'

$398,008,000

$398,008,000

$400,000,000

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

$229,000,000

'

'

'

'

$0

$410,000,000

'

'

'

'

$1,755,000

'

'

'

'

'

'

Accounts_Receivable_Securitiza1

Accounts Receivable Securitization (Detail) (USD $)	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2013
	2013 RSA Borrowing [Member]	2013 RSA Borrowing [Member]	2013 RSA Borrowing [Member]	2011 RSA Borrrowing [Member]	2011 RSA Borrrowing [Member]
Servicing Liabilities at Fair Value [Line Items]	'	'	'	'	'
Receivables Sale Agreement Borrowing Capacity	$325	$325	'	'	'
RSA, terminates date	'	13-Jul-16	'	'	'
RSA, program fee	0.8	1.6	'	0.7	1.5
RSA, outstanding borrowing	319	319	264	'	'
RSA, borrowing base	325	325	300.8	'	'
RSA, remaining borrowing	$6	$6	'	'	'
Interest rate	'	0.95%	'	'	'
Unused capacity fee	'	0.35%	'	'	'

Capital_Leases_Detail

Capital Leases (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Leases [Abstract]	'	'
Present value of Obligations under capital leases	$187.10	$171.50
Capital leases obligations, current	62.2	63.7
Revenue equipment cost	304	'
Accumulated amortization	$67.90	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Detail) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'	'
Interest rate swaps maturity date	1-Jul-15	'
Fair value of the designated interest rate swap agreements	'	$0.10
Deferred losses on derivatives in accumulated OCI expected to be reclassified to earnings within next 12 months	7.2	'
Interest Rate Swaps [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Number of interest rate derivatives held	2	'
Notional amount of interest rate swap agreements	$350	'
Interest rate swaps maturity date	1-Jul-15	'
Interest rate swaps agreement effective date	1-Jan-13	'

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Classification Of Gains And Losses On Interest Rate Derivative Contracts Designated As Hedging Instruments) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'	'	'
Amount of loss recognized in OCI on derivatives, net-of-tax (effective portion)	'	($174)	$0	$145
Amount of loss reclassified from accumulated OCI into income as "Derivative interest expense" (effective portion)	$1,482	$468	$2,796	$959

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Pre-Tax Gains And Losses On Interest Rate Derivative Contracts De-Designated As Hedging Instruments) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'	'	'
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$136	$64	$475	$135

Fair_Value_Measurement_Carryin

Fair Value Measurement (Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Carrying Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Assets	$25,666	$25,814
Carrying Value [Member] | Central Refrigerated Service, Inc. [Member] | Notes Payable, Due May 2015 [Member] | Secured Debt [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	'	2,190
Carrying Value [Member] | Senior Second Priority Secured Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	455,711	493,825
Carrying Value [Member] | Securitization Of Accounts Receivable [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	319,000	264,000
Carrying Value [Member] | 2014 Agreement, Term Loan A [Member] | First Lien Term Loan A [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	50,000	0
Carrying Value [Member] | 2014 Agreement, Term Loan B [Member] | First Lien Term Loan B [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	398,008	0
Carrying Value [Member] | (2013 Agreement) [Member] | First Lien Term Loan B 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	0	229,000
Carrying Value [Member] | (2013 Agreement) [Member] | First Lien Term Loan B 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	0	410,000
Estimated Fair Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Assets	25,669	25,808
Estimated Fair Value [Member] | Central Refrigerated Service, Inc. [Member] | Notes Payable, Due May 2015 [Member] | Secured Debt [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	'	2,190
Estimated Fair Value [Member] | Senior Second Priority Secured Notes [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	491,029	549,059
Estimated Fair Value [Member] | Securitization Of Accounts Receivable [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	319,000	264,000
Estimated Fair Value [Member] | 2014 Agreement, Term Loan A [Member] | First Lien Term Loan A [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	50,000	'
Estimated Fair Value [Member] | 2014 Agreement, Term Loan B [Member] | First Lien Term Loan B [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	398,259	'
Estimated Fair Value [Member] | (2013 Agreement) [Member] | First Lien Term Loan B 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	0	230,031
Estimated Fair Value [Member] | (2013 Agreement) [Member] | First Lien Term Loan B 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities	$0	$412,358

Fair_Value_Measurement_Liabili

Fair Value Measurement (Liabilities That Were Measured At Estimated Fair Value On Recurring Basis) (Detail) (Recurring [Member], USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Total Estimated Fair Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swaps	$9,332	$11,768
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swaps	0	0
Significant Other Observable Inputs (Level 2) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swaps	9,332	11,768
Significant Unobservable Inputs (Level 3) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swaps	$0	$0

Earnings_Per_Share_Calculation

Earnings Per Share (Calculation Of Basic And Diluted Earnings Per Share Attributable To Stockholders) (Detail) (USD $)	3 Months Ended				6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Earnings Per Share [Abstract]	'		'		'		'
Net income	$40,198		$49,879		$52,503		$80,171
Basic:	'		'		'		'
Weighted average common shares outstanding	141,308,000		139,989,000		141,143,000		139,839,000
Diluted:	'		'		'		'
Dilutive effect of stock options	2,085,000		1,849,000		2,122,000		1,813,000
Total weighted average diluted shares outstanding	143,393,000		141,838,000		143,265,000		141,652,000
Anti-dilutive shares excluded from the diluted earnings per share calculation	0	[1]	171,000	[1]	0	[1]	171,000	[1]
Earnings per share:	'		'		'		'
Basic earnings per share	$0.28		$0.36		$0.37		$0.57
Diluted earnings per share	$0.28		$0.35		$0.37		$0.57
Options outstanding	4,913,872		5,847,980		4,913,872		5,847,980
[1]	Impact of outstanding options to purchase shares of the Companybs ClassB A common stock were anti-dilutive because the options exercise price was greater than the average market price of the common shares and were excluded from the calculation of diluted earnings per share.

Contingencies_Detail

Contingencies (Detail) (USD $)

Jun. 30, 2014

Jan. 30, 2004

Jun. 30, 2014

Dec. 22, 2009

Jun. 30, 2014

Mar. 22, 2010

Jun. 30, 2014

Jul. 12, 2011

Jun. 30, 2014

Sep. 09, 2011

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Apr. 17, 2009

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

In Millions, unless otherwise specified

2004 Owner-Operator Class Action Litigation [Member]

2004 Owner-Operator Class Action Litigation [Member]

Owner-Operator Misclassification Class Action Litigation [Member]

Owner-Operator Misclassification Class Action Litigation [Member]

California Wage, Meal And Rest Employee Class Action [Member]

California Wage, Meal And Rest Employee Class Action [Member]

California And Oregon Minimum Wage Class Action [Member]

California And Oregon Minimum Wage Class Action [Member]

Washington Overtime Class Action [Member]

Washington Overtime Class Action [Member]

Utah minimum wage collective action [Member]

Utah collective and individual arbitration [Member] [Member]

California Minimum Wage Class Action [Member]

Environmental Notice [Member]

Environmental Notice [Member]

2013 Environmental Notice [Member] [Member]

Other environmental [Member]

LawSuits

LawSuits

LawSuits

LawSuits

LawSuits

LawSuits

LawSuits

Loss Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Lawsuit filing date

'

'

'January 30, 2004

'

'December 22, 2009

'

'MarchB 22, 2010

'

'July 12, 2011

'

'SeptemberB 9, 2011

'October 8, 2013

'June 1, 2012

'NovemberB 7, 2013

'

'AprilB 17, 2009

'May 14, 2013

'

Loss contingency, name of plaintiffs

'

'

'Leonel Garza

'

'John Doe 1 and Joseph Sheer

'

'John Burnell

'

'Simona Montalvo

'

'Troy Slack

'Jacob Roberts

'Gabriel Cilluffo, Kevin Shire and Bryan Ratterree

'Jorge Calix

'

'Lower Willamette Group

'

'

Number of class action law suits filed

'

1

'

1

'

1

'

1

'

1

'

'

'

'

1

'

1

'

Potentially responsible parties

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'250

'

'

Loss Contingency, Range of Possible Loss, Minimum

$0.30

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss Contingency, Range of Possible Loss, Maximum

$0.50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.50

Segment_Information_Narrative_

Segment Information (Narrative) (Detail)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
	Segment
Segment Reporting [Abstract]	'	'
Number of reportable operating segments	4	'
Percentage of foreign operations total revenue	5.00%	5.00%

Segment_Information_Summary_Of

Segment Information (Summary Of Financial Information By Segments) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	$94,022	$100,266	$140,192	$169,984
Revenues	1,075,898	1,029,071	2,084,344	2,010,679
Consolidated depreciation and amortization expense	54,791	56,880	110,966	111,750
Trucking [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	'	'	101,503	107,017
Revenues	'	'	1,128,538	1,148,319
Consolidated depreciation and amortization expense	'	'	58,561	63,380
Dedicated Trucking [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	'	'	32,642	43,217
Revenues	'	'	416,751	361,877
Consolidated depreciation and amortization expense	'	'	26,075	21,728
Rail Intermodal [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	'	'	-1,421	-816
Revenues	'	'	192,224	174,258
Consolidated depreciation and amortization expense	'	'	4,951	4,745
Subtotal [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	'	'	138,806	159,799
Revenues	'	'	1,951,187	1,902,094
Consolidated depreciation and amortization expense	'	'	95,607	97,652
Non Reportable Segments [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	'	'	1,386	10,185
Revenues	'	'	159,157	143,972
Consolidated depreciation and amortization expense	'	'	15,359	14,098
Intersegment Eliminations [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Revenues	'	'	-26,000	-35,387
Dedicated Trucking [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	21,112	24,263	'	'
Revenues	223,098	182,651	'	'
Consolidated depreciation and amortization expense	13,670	11,223	'	'
Trucking [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	69,596	64,614	'	'
Revenues	575,481	588,724	'	'
Consolidated depreciation and amortization expense	28,316	32,387	'	'
Intersegment Eliminations [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Revenues	-13,994	-16,451	'	'
Non Reportable Segments [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	147	4,941	'	'
Revenues	83,491	71,915	'	'
Consolidated depreciation and amortization expense	7,308	7,131	'	'
Subtotal [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	93,875	95,325	'	'
Revenues	1,006,401	973,607	'	'
Consolidated depreciation and amortization expense	47,483	49,749	'	'
CRS Refrigerated [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	3,662	5,660	6,082	10,381
Revenues	106,911	111,238	213,674	217,640
Consolidated depreciation and amortization expense	2,914	3,821	6,020	7,799
Rail Intermodal [Member]	'	'	'	'
Segment Information [Line Items]	'	'	'	'
Operating Income (Loss)	-495	788	'	'
Revenues	100,911	90,994	'	'
Consolidated depreciation and amortization expense	$2,583	$2,318	'	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Components of AOCI) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Balance at beginning of period	'	'	($6,162)	'
Other comprehensive loss before reclassifications	'	'	0	'
Amounts reclassified from accumulated other comprehensive loss	'	'	1,719	'
Other comprehensive income, net of taxes	911	398	1,719	596
Balance at end of period	-4,443	'	-4,443	'
Derivative Financial Instruments [Member]	'	'	'	'
Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Balance at beginning of period	'	'	-6,245	'
Other comprehensive loss before reclassifications	'	'	0	'
Amounts reclassified from accumulated other comprehensive loss	'	'	1,719	'
Other comprehensive income, net of taxes	'	'	1,719	'
Balance at end of period	-4,526	'	-4,526	'
Foreign Currency Transactions [Member]	'	'	'	'
Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Balance at beginning of period	'	'	83	'
Other comprehensive loss before reclassifications	'	'	0	'
Amounts reclassified from accumulated other comprehensive loss	'	'	0	'
Other comprehensive income, net of taxes	'	'	0	'
Balance at end of period	$83	'	$83	'

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Summary of Reclassifications out of AOCI) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassification out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Derivative interest expense	$1,618	$532	$3,271	$1,094
Income tax expense (benefit)	25,165	26,963	32,869	41,650
Net income (loss)	40,198	49,879	52,503	80,171
Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Reclassification out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Net income (loss)	-911	-288	-1,719	-590
Derivative Financial Instruments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Reclassification out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Derivative interest expense	1,482	468	2,796	959
Income tax expense (benefit)	($571)	($180)	($1,077)	($369)

Guarantor_Condensed_Consolidat2

Guarantor Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheet) (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	$73,528	$59,178	$43,510	$53,596
Restricted cash	52,815	50,833	'	'
Restricted investments, held to maturity, amortized cost	25,666	25,814	'	'
Accounts receivable, net	460,358	418,436	'	'
Intercompany Receivable	0	0	'	'
Other current assets	140,056	179,771	'	'
Total current assets	752,423	734,032	'	'
Property and equipment, net	1,450,352	1,447,807	'	'
Investment in subsidiaries	0	0	'	'
Other assets	50,735	57,166	'	'
Intangible assets, net	308,340	316,747	'	'
Goodwill	253,256	253,256	'	'
Total assets	2,815,106	2,809,008	'	'
Intercompany Accounts Payable, Current	0	0	'	'
Current portion of long-term debt and obligations under capital leases	85,962	75,056	'	'
Other current liabilities	350,336	309,312	'	'
Total current liabilities	436,298	384,368	'	'
Long-term debt and obligations under capital leases, less current portion	1,016,625	1,246,764	'	'
Deferred income taxes	454,499	484,200	'	'
Securitization of accounts receivable	319,000	264,000	'	'
Revolving line of credit	99,000	17,000	'	'
Other liabilities	141,876	129,089	'	'
Total liabilities	2,467,298	2,525,421	'	'
Total stockholdersb equity	347,808	283,587	'	'
Total liabilities and stockholdersb equity	2,815,106	2,809,008	'	'
Swift Transportation Company [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Restricted cash	0	0	'	'
Restricted investments, held to maturity, amortized cost	0	0	'	'
Accounts receivable, net	0	0	'	'
Intercompany Receivable	131,608	85,498	'	'
Other current assets	9,542	37,022	'	'
Total current assets	141,150	122,520	'	'
Property and equipment, net	0	0	'	'
Investment in subsidiaries	296,176	239,432	'	'
Other assets	10,453	11,780	'	'
Intangible assets, net	0	0	'	'
Goodwill	0	0	'	'
Total assets	447,779	373,732	'	'
Intercompany Accounts Payable, Current	0	0	'	'
Current portion of long-term debt and obligations under capital leases	2,430	6,036	'	'
Other current liabilities	17,430	2,281	'	'
Total current liabilities	19,860	8,317	'	'
Long-term debt and obligations under capital leases, less current portion	0	0	'	'
Deferred income taxes	0	0	'	'
Securitization of accounts receivable	0	0	'	'
Revolving line of credit	0	0	'	'
Other liabilities	0	0	'	'
Total liabilities	19,860	8,317	'	'
Total stockholdersb equity	427,919	365,415	'	'
Total liabilities and stockholdersb equity	447,779	373,732	'	'
Swift Services Holdings, Inc. (Issuer) [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Restricted cash	0	0	'	'
Restricted investments, held to maturity, amortized cost	0	0	'	'
Accounts receivable, net	0	0	'	'
Intercompany Receivable	344,418	400,569	'	'
Other current assets	0	0	'	'
Total current assets	344,418	400,569	'	'
Property and equipment, net	0	0	'	'
Investment in subsidiaries	909,847	870,599	'	'
Other assets	2,028	2,355	'	'
Intangible assets, net	0	0	'	'
Goodwill	0	0	'	'
Total assets	1,256,293	1,273,523	'	'
Intercompany Accounts Payable, Current	4,031	1,296	'	'
Current portion of long-term debt and obligations under capital leases	0	0	'	'
Other current liabilities	3,814	6,389	'	'
Total current liabilities	7,845	7,685	'	'
Long-term debt and obligations under capital leases, less current portion	455,711	493,825	'	'
Deferred income taxes	0	0	'	'
Securitization of accounts receivable	0	0	'	'
Revolving line of credit	0	0	'	'
Other liabilities	0	0	'	'
Total liabilities	463,556	501,510	'	'
Total stockholdersb equity	792,737	772,013	'	'
Total liabilities and stockholdersb equity	1,256,293	1,273,523	'	'
Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	66,487	54,564	29,073	43,877
Restricted cash	0	0	'	'
Restricted investments, held to maturity, amortized cost	0	0	'	'
Accounts receivable, net	31,620	28,997	'	'
Intercompany Receivable	0	0	'	'
Other current assets	118,297	127,775	'	'
Total current assets	216,404	211,336	'	'
Property and equipment, net	1,412,170	1,407,414	'	'
Investment in subsidiaries	1,010,290	983,289	'	'
Other assets	65,534	83,967	'	'
Intangible assets, net	299,071	307,092	'	'
Goodwill	246,977	246,977	'	'
Total assets	3,250,446	3,240,075	'	'
Intercompany Accounts Payable, Current	533,099	542,772	'	'
Current portion of long-term debt and obligations under capital leases	79,745	64,970	'	'
Other current liabilities	308,348	277,921	'	'
Total current liabilities	921,192	885,663	'	'
Long-term debt and obligations under capital leases, less current portion	557,673	747,918	'	'
Deferred income taxes	457,286	487,670	'	'
Securitization of accounts receivable	0	0	'	'
Revolving line of credit	99,000	17,000	'	'
Other liabilities	89,532	73,774	'	'
Total liabilities	2,124,683	2,212,025	'	'
Total stockholdersb equity	1,125,763	1,028,050	'	'
Total liabilities and stockholdersb equity	3,250,446	3,240,075	'	'
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	7,041	4,614	14,437	9,719
Restricted cash	52,815	50,833	'	'
Restricted investments, held to maturity, amortized cost	25,666	25,814	'	'
Accounts receivable, net	431,974	394,044	'	'
Intercompany Receivable	57,073	55,799	'	'
Other current assets	16,248	16,270	'	'
Total current assets	590,817	547,374	'	'
Property and equipment, net	38,182	40,393	'	'
Investment in subsidiaries	0	0	'	'
Other assets	3,846	4,639	'	'
Intangible assets, net	9,269	9,655	'	'
Goodwill	6,279	6,279	'	'
Total assets	648,393	608,340	'	'
Intercompany Accounts Payable, Current	0	0	'	'
Current portion of long-term debt and obligations under capital leases	23,242	36,626	'	'
Other current liabilities	23,980	27,170	'	'
Total current liabilities	47,222	63,796	'	'
Long-term debt and obligations under capital leases, less current portion	4,013	5,046	'	'
Deferred income taxes	8,112	8,754	'	'
Securitization of accounts receivable	319,000	264,000	'	'
Revolving line of credit	0	0	'	'
Other liabilities	52,344	55,315	'	'
Total liabilities	430,691	396,911	'	'
Total stockholdersb equity	217,702	211,429	'	'
Total liabilities and stockholdersb equity	648,393	608,340	'	'
Eliminations For Consolidation [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Restricted cash	0	0	'	'
Restricted investments, held to maturity, amortized cost	0	0	'	'
Accounts receivable, net	-3,236	-4,605	'	'
Intercompany Receivable	-533,099	-541,866	'	'
Other current assets	-4,031	-1,296	'	'
Total current assets	-540,366	-547,767	'	'
Property and equipment, net	0	0	'	'
Investment in subsidiaries	-2,216,313	-2,093,320	'	'
Other assets	-31,126	-45,575	'	'
Intangible assets, net	0	0	'	'
Goodwill	0	0	'	'
Total assets	-2,787,805	-2,686,662	'	'
Intercompany Accounts Payable, Current	-537,130	-544,068	'	'
Current portion of long-term debt and obligations under capital leases	-19,455	-32,576	'	'
Other current liabilities	-3,236	-4,449	'	'
Total current liabilities	-559,821	-581,093	'	'
Long-term debt and obligations under capital leases, less current portion	-772	-25	'	'
Deferred income taxes	-10,899	-12,224	'	'
Securitization of accounts receivable	0	0	'	'
Revolving line of credit	0	0	'	'
Other liabilities	0	0	'	'
Total liabilities	-571,492	-593,342	'	'
Total stockholdersb equity	-2,216,313	-2,093,320	'	'
Total liabilities and stockholdersb equity	($2,787,805)	($2,686,662)	'	'

Guarantor_Condensed_Consolidat3

Guarantor Condensed Consolidating Financial Statements (Condensed Consolidating Statement Of Operations) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	$1,075,898	$1,029,071	$2,084,344	$2,010,679
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	238,093	223,852	467,459	450,337
Operating supplies and expenses	84,077	78,996	164,902	151,063
Fuel	153,677	160,886	309,699	329,002
Purchased transportation	340,249	308,117	659,418	600,273
Rental expense	56,135	42,996	107,854	83,619
Insurance and claims	33,321	33,597	75,769	65,135
Depreciation and amortization of property and equipment	54,791	56,880	110,966	111,750
Amortization of intangibles	4,203	4,203	8,407	8,407
Gain on disposal of property and equipment	-8,312	-5,143	-11,471	-7,991
Communication and utilities	7,716	5,901	14,886	12,466
Operating taxes and licenses	17,926	18,520	36,263	36,634
Total operating expenses	981,876	928,805	1,944,152	1,840,695
Operating income	94,022	100,266	140,192	169,984
Interest expense, net	22,379	24,748	46,491	51,081
Other (income) expenses, net	6,280	-1,324	8,329	-2,918
Income before income taxes	65,363	76,842	85,372	121,821
Income tax expense (benefit)	25,165	26,963	32,869	41,650
Net income (loss)	40,198	49,879	52,503	80,171
Swift Transportation Company [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	0	0	0	0
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	1,291	833	2,352	1,378
Operating supplies and expenses	679	631	1,363	1,130
Fuel	0	0	0	0
Purchased transportation	0	0	0	0
Rental expense	0	0	0	0
Insurance and claims	1,680	0	3,395	0
Depreciation and amortization of property and equipment	0	0	0	0
Amortization of intangibles	0	0	0	0
Gain on disposal of property and equipment	0	0	0	0
Communication and utilities	0	0	0	0
Operating taxes and licenses	62	0	62	0
Total operating expenses	3,712	1,464	7,172	2,508
Operating income	-3,712	-1,464	-7,172	-2,508
Interest expense, net	19	0	49	0
Other (income) expenses, net	-42,587	-20,844	-56,743	-44,343
Income before income taxes	38,856	19,380	49,522	41,835
Income tax expense (benefit)	-1,342	-23,561	-2,981	-24,447
Net income (loss)	40,198	42,941	52,503	66,282
Swift Services Holdings, Inc. (Issuer) [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	0	0	0	0
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	0	0	0	0
Operating supplies and expenses	1	4	1	4
Fuel	0	0	0	0
Purchased transportation	0	0	0	0
Rental expense	0	0	0	0
Insurance and claims	0	0	0	0
Depreciation and amortization of property and equipment	0	0	0	0
Amortization of intangibles	0	0	0	0
Gain on disposal of property and equipment	0	0	0	0
Communication and utilities	0	0	0	0
Operating taxes and licenses	0	0	0	0
Total operating expenses	1	4	1	4
Operating income	-1	-4	-1	-4
Interest expense, net	11,918	12,914	24,699	25,827
Other (income) expenses, net	-33,347	-38,501	-34,510	-45,448
Income before income taxes	21,428	25,583	9,810	19,617
Income tax expense (benefit)	-5,095	-4,793	-10,914	-9,583
Net income (loss)	26,523	30,376	20,724	29,200
Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	1,054,756	1,009,881	2,043,749	1,973,623
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	228,897	215,346	449,431	434,067
Operating supplies and expenses	84,815	75,194	161,090	145,532
Fuel	146,495	154,059	295,627	315,917
Purchased transportation	349,494	317,745	679,006	619,395
Rental expense	55,524	42,259	106,516	82,149
Insurance and claims	25,457	29,562	60,392	56,293
Depreciation and amortization of property and equipment	53,473	55,720	108,241	109,550
Amortization of intangibles	4,010	4,010	8,021	8,021
Gain on disposal of property and equipment	-8,312	-5,178	-11,471	-8,011
Communication and utilities	7,441	5,675	14,321	12,043
Operating taxes and licenses	15,063	15,719	30,580	31,169
Total operating expenses	962,357	910,111	1,901,754	1,806,125
Operating income	92,399	99,770	141,995	167,498
Interest expense, net	9,381	10,405	19,325	22,753
Other (income) expenses, net	-23,638	-30,739	-16,863	-31,271
Income before income taxes	106,656	120,104	139,533	176,016
Income tax expense (benefit)	28,896	53,821	43,541	72,336
Net income (loss)	77,760	66,283	95,992	103,680
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	39,206	40,813	77,728	79,439
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	7,905	7,673	15,676	14,892
Operating supplies and expenses	1,296	5,041	7,924	8,029
Fuel	7,182	6,827	14,072	13,085
Purchased transportation	2,595	3,641	5,052	6,619
Rental expense	776	876	1,666	1,797
Insurance and claims	9,529	10,376	18,671	21,525
Depreciation and amortization of property and equipment	1,318	1,160	2,725	2,200
Amortization of intangibles	193	193	386	386
Gain on disposal of property and equipment	0	35	0	20
Communication and utilities	275	226	565	423
Operating taxes and licenses	2,801	2,801	5,621	5,465
Total operating expenses	33,870	38,849	72,358	74,441
Operating income	5,336	1,964	5,370	4,998
Interest expense, net	1,061	1,429	2,418	2,501
Other (income) expenses, net	-3,485	-2,981	-6,547	-5,347
Income before income taxes	7,760	3,516	9,499	7,844
Income tax expense (benefit)	2,706	1,496	3,223	3,344
Net income (loss)	5,054	2,020	6,276	4,500
Eliminations For Consolidation [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Operating revenue	-18,064	-21,623	-37,133	-42,383
Operating expenses:	'	'	'	'
Salaries, wages and employee benefits	0	0	0	0
Operating supplies and expenses	-2,714	-1,874	-5,476	-3,632
Fuel	0	0	0	0
Purchased transportation	-11,840	-13,269	-24,640	-25,741
Rental expense	-165	-139	-328	-327
Insurance and claims	-3,345	-6,341	-6,689	-12,683
Depreciation and amortization of property and equipment	0	0	0	0
Amortization of intangibles	0	0	0	0
Gain on disposal of property and equipment	0	0	0	0
Communication and utilities	0	0	0	0
Operating taxes and licenses	0	0	0	0
Total operating expenses	-18,064	-21,623	-37,133	-42,383
Operating income	0	0	0	0
Interest expense, net	'	0	0	0
Other (income) expenses, net	109,337	91,741	122,992	123,491
Income before income taxes	-109,337	-91,741	-122,992	-123,491
Income tax expense (benefit)	0	0	0	0
Net income (loss)	($109,337)	($91,741)	($122,992)	($123,491)

Guarantor_Condensed_Consolidat4

Guarantor Condensed Consolidating Financial Statements (Condensed Consolidating Statement Of Comprehensive Income) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	$40,198	$49,879	$52,503	$80,171
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	1,482	468	2,796	959
Change in fair value of interest rate swaps	0	174	0	-145
Other comprehensive income before income taxes	1,482	642	2,796	814
Income tax effect of items within other comprehensive income	-571	-244	-1,077	-218
Total comprehensive income	41,109	50,277	54,222	80,767
Swift Transportation Company [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	40,198	42,941	52,503	66,282
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	0	0	0	0
Change in fair value of interest rate swaps	0	0	0	0
Other comprehensive income before income taxes	0	0	0	0
Income tax effect of items within other comprehensive income	0	0	0	0
Total comprehensive income	40,198	42,941	52,503	66,282
Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	77,760	66,283	95,992	103,680
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	1,482	468	2,796	959
Change in fair value of interest rate swaps	0	174	0	-145
Other comprehensive income before income taxes	1,482	642	2,796	814
Income tax effect of items within other comprehensive income	-571	-244	-1,077	-218
Total comprehensive income	78,671	66,681	97,711	104,276
Swift Services Holdings, Inc. (Issuer) [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	26,523	30,376	20,724	29,200
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	0	0	0	0
Change in fair value of interest rate swaps	0	0	0	0
Other comprehensive income before income taxes	0	0	0	0
Income tax effect of items within other comprehensive income	0	0	0	0
Total comprehensive income	26,523	30,376	20,724	29,200
Non-Guarantor Subsidiaries [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	5,054	2,020	6,276	4,500
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	0	0	0	0
Change in fair value of interest rate swaps	0	0	0	0
Other comprehensive income before income taxes	0	0	0	0
Income tax effect of items within other comprehensive income	0	0	0	0
Total comprehensive income	5,054	2,020	6,276	4,500
Eliminations For Consolidation [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Net income (loss)	-109,337	-91,741	-122,992	-123,491
Other comprehensive income before income taxes:	'	'	'	'
Accumulated losses on derivatives reclassified to derivative interest expense	0	0	0	0
Change in fair value of interest rate swaps	0	0	0	0
Other comprehensive income before income taxes	0	0	0	0
Income tax effect of items within other comprehensive income	0	0	0	0
Total comprehensive income	($109,337)	($91,741)	($122,992)	($123,491)

Guarantor_Condensed_Consolidat5

Guarantor Condensed Consolidating Financial Statements (Condensed Consolidating Statement Of Cash Flows) (Detail) (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	$183,483	$245,646
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	-1,982	8,984
Change in restricted investments	-113	-4,680
Proceeds from sale of property and equipment	77,088	47,261
Capital expenditures	-135,068	-164,320
Payments received on notes receivable	2,226	2,074
Expenditures on assets held for sale	-1,991	-1,614
Payments received on assets held for sale	13,603	22,773
Payments received on equipment sale receivables	385	644
Dividends from subsidiary	'	0
Payments received on intercompany notes payable	'	0
Capital Contribution To Subsidiary	'	0
Net cash used in investing activities	-45,852	-88,878
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	-707,386	-130,202
Net borrowings on revolving line of credit	82,000	7,313
Repayment of accounts receivable securitization	-40,000	-119,000
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	5,811	6,182
Income tax benefit from exercise of stock options	1,835	-504
Proceeds from long-term debt	450,000	23,528
Payment of deferred loan costs	-10,541	-2,183
Borrowings under accounts receivable securitization	95,000	80,000
Distribution to Central stockholders, pre-acquisition	0	-1,988
Issuance of Central stockholders' loan receivable, pre-acquisition	0	-30,000
Dividend to parent	'	0
Capital contribution	'	0
Repayment of intercompany notes payable	'	0
Net funding (to) from affiliates	0	0
Net cash used in financing activities	-123,281	-166,854
Net (decrease) increase in cash and cash equivalents	14,350	-10,086
Cash and cash equivalents at beginning of period	59,178	53,596
Cash and cash equivalents at end of period	73,528	43,510
Swift Transportation Company [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	42,070	57,295
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	0	0
Change in restricted investments	0	0
Proceeds from sale of property and equipment	0	0
Capital expenditures	0	0
Payments received on notes receivable	'	0
Expenditures on assets held for sale	0	0
Payments received on assets held for sale	0	0
Payments received on equipment sale receivables	0	0
Dividends from subsidiary	'	0
Payments received on intercompany notes payable	'	0
Capital Contribution To Subsidiary	'	0
Net cash used in investing activities	0	0
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	-3,607	0
Net borrowings on revolving line of credit	0	0
Repayment of accounts receivable securitization	0	0
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	5,811	6,182
Income tax benefit from exercise of stock options	1,835	-504
Proceeds from long-term debt	0	0
Payment of deferred loan costs	0	0
Borrowings under accounts receivable securitization	0	0
Distribution to Central stockholders, pre-acquisition	'	0
Issuance of Central stockholders' loan receivable, pre-acquisition	'	0
Dividend to parent	'	0
Capital contribution	'	0
Repayment of intercompany notes payable	'	0
Net funding (to) from affiliates	-46,109	-62,973
Net cash used in financing activities	-42,070	-57,295
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Swift Services Holdings, Inc. (Issuer) [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-56,151	-14,029
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	0	0
Change in restricted investments	0	0
Proceeds from sale of property and equipment	0	0
Capital expenditures	0	0
Payments received on notes receivable	0	0
Expenditures on assets held for sale	0	0
Payments received on assets held for sale	0	0
Payments received on equipment sale receivables	0	0
Dividends from subsidiary	'	0
Payments received on intercompany notes payable	'	0
Capital Contribution To Subsidiary	'	0
Net cash used in investing activities	0	0
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	0	0
Net borrowings on revolving line of credit	0	0
Repayment of accounts receivable securitization	0	0
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	0	0
Income tax benefit from exercise of stock options	0	0
Proceeds from long-term debt	0	0
Payment of deferred loan costs	0	0
Borrowings under accounts receivable securitization	0	0
Distribution to Central stockholders, pre-acquisition	'	0
Issuance of Central stockholders' loan receivable, pre-acquisition	'	0
Dividend to parent	'	0
Capital contribution	'	0
Repayment of intercompany notes payable	'	0
Net funding (to) from affiliates	56,151	14,029
Net cash used in financing activities	56,151	14,029
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Guarantor Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	233,111	222,329
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	0	0
Change in restricted investments	0	0
Proceeds from sale of property and equipment	77,088	47,125
Capital expenditures	-134,554	-163,815
Payments received on notes receivable	2,226	2,074
Expenditures on assets held for sale	-1,991	-1,614
Payments received on assets held for sale	13,603	22,773
Payments received on equipment sale receivables	385	644
Dividends from subsidiary	'	6,800
Payments received on intercompany notes payable	'	3,399
Capital Contribution To Subsidiary	'	-1,160
Net cash used in investing activities	-43,243	-83,774
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	-701,732	-129,300
Net borrowings on revolving line of credit	82,000	7,313
Repayment of accounts receivable securitization	0	0
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	0	0
Income tax benefit from exercise of stock options	0	0
Proceeds from long-term debt	450,000	16,000
Payment of deferred loan costs	-10,541	-1,332
Borrowings under accounts receivable securitization	0	0
Distribution to Central stockholders, pre-acquisition	'	-1,988
Issuance of Central stockholders' loan receivable, pre-acquisition	'	-30,000
Dividend to parent	'	0
Capital contribution	'	0
Repayment of intercompany notes payable	'	0
Net funding (to) from affiliates	2,328	-14,052
Net cash used in financing activities	-177,945	-153,359
Net (decrease) increase in cash and cash equivalents	11,923	-14,804
Cash and cash equivalents at beginning of period	54,564	43,877
Cash and cash equivalents at end of period	66,487	29,073
Non-Guarantor Subsidiaries [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	-35,547	-19,949
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	-1,982	8,984
Change in restricted investments	-113	-4,680
Proceeds from sale of property and equipment	'	136
Capital expenditures	-514	-505
Payments received on notes receivable	0	0
Expenditures on assets held for sale	0	0
Payments received on assets held for sale	0	0
Payments received on equipment sale receivables	0	0
Dividends from subsidiary	'	0
Payments received on intercompany notes payable	'	0
Capital Contribution To Subsidiary	'	0
Net cash used in investing activities	-2,609	3,935
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	-2,047	-902
Net borrowings on revolving line of credit	0	0
Repayment of accounts receivable securitization	-40,000	-119,000
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	0	0
Income tax benefit from exercise of stock options	0	0
Proceeds from long-term debt	0	7,528
Payment of deferred loan costs	0	-851
Borrowings under accounts receivable securitization	95,000	80,000
Distribution to Central stockholders, pre-acquisition	'	0
Issuance of Central stockholders' loan receivable, pre-acquisition	'	0
Dividend to parent	'	-6,800
Capital contribution	'	1,160
Repayment of intercompany notes payable	'	-3,399
Net funding (to) from affiliates	-12,370	62,996
Net cash used in financing activities	40,583	20,732
Net (decrease) increase in cash and cash equivalents	2,427	4,718
Cash and cash equivalents at beginning of period	4,614	9,719
Cash and cash equivalents at end of period	7,041	14,437
Eliminations For Consolidation [Member]	'	'
Condensed Financial Statements, Captions [Line Items]	'	'
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:	'	'
(Increase) decrease in restricted cash	0	0
Change in restricted investments	0	0
Proceeds from sale of property and equipment	0	0
Capital expenditures	0	0
Payments received on notes receivable	0	0
Expenditures on assets held for sale	0	0
Payments received on assets held for sale	0	0
Payments received on equipment sale receivables	0	0
Dividends from subsidiary	'	-6,800
Payments received on intercompany notes payable	'	-3,399
Capital Contribution To Subsidiary	'	1,160
Net cash used in investing activities	0	-9,039
Cash flows from financing activities:	'	'
Repayment of long-term debt and capital leases	0	0
Net borrowings on revolving line of credit	0	0
Repayment of accounts receivable securitization	0	0
Proceeds from exercise of stock options and the issuance of employee stock purchase plan shares	0	0
Income tax benefit from exercise of stock options	0	0
Proceeds from long-term debt	0	0
Payment of deferred loan costs	0	0
Borrowings under accounts receivable securitization	0	0
Distribution to Central stockholders, pre-acquisition	'	0
Issuance of Central stockholders' loan receivable, pre-acquisition	'	0
Dividend to parent	'	6,800
Capital contribution	'	-1,160
Repayment of intercompany notes payable	'	3,399
Net funding (to) from affiliates	0	0
Net cash used in financing activities	0	9,039
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	$0	$0