10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________________________________________________________________________________________________________________________________________________

FORM 10-Q

_________________________________________________________________________________________________________________________________________________________

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

For the quarterly period ended June 30, 2024

or

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

For the transition period from                      to                     

Commission File Number: 001-35007

_________________________________________________________________________________________________________________________________________________________

___________________________________________________________________________________________________________________________________

 Knight-Swift Transportation Holdings Inc.

(Exact name of registrant as specified in its charter)

___________________________________________________________________________________________________________________

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

2002 West Wahalla Lane

Phoenix, Arizona 85027

(Address of principal executive offices and zip code)

(602) 269-2000

(Registrant's telephone number, including area code)

N/A

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

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock $0.01 Par Value	KNX	New York Stock Exchange

_________________________________________________________________________________________________________________________________________________________

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

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

Large Accelerated Filer	☒	Accelerated Filer	☐
Non-accelerated Filer	☐	Smaller Reporting Company	☐
		Emerging Growth Company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.    ☐

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

There were approximately 161,864,000 shares of the registrant's common stock outstanding as of July 24, 2024.

KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.

QUARTERLY REPORT ON FORM 10-Q
TABLE OF CONTENTS
PART I FINANCIAL INFORMATION	PAGE
Item 1. Financial Statements	4
Condensed Consolidated Balance Sheets (Unaudited) — June 30, 2024 and December 31, 2023	4
Condensed Consolidated Statements of Comprehensive Income (Unaudited) — Quarter and year-to-date ended June 30, 2024 and 2023	5
Condensed Consolidated Statements of Cash Flows (Unaudited) — Quarter and year-to-date ended June 30, 2024 and 2023	6
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) — Quarter and year-to-date ended June 30, 2024 and 2023	8
Note 1 — Introduction and Basis of Presentation	10
Note 2 — Recently Issued Accounting Pronouncements	11
Note 3 — Acquisitions	11
Note 4 — Income Taxes	13
Note 5 — Accounts Receivable Securitization	14
Note 6 — Debt and Financing	15
Note 7 — Defined Benefit Pension Plan	17
Note 8 — Purchase Commitments	17
Note 9 — Contingencies and Legal Proceedings	18
Note 10 — Share Repurchase Plans	18
Note 11 — Weighted Average Shares Outstanding	19
Note 12 — Fair Value Measurement	20
Note 13 — Related Party Transactions	22
Note 14 — Financial Information by Segment and Geography	23
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3. Quantitative and Qualitative Disclosures About Market Risk	57
Item 4. Controls and Procedures	58
PART II OTHER INFORMATION
Item 1. Legal Proceedings	59
Item 1A. Risk Factors	59
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	59
Item 3. Defaults Upon Senior Securities	59
Item 4. Mine Safety Disclosures	59
Item 5. Other Information	59
Item 6. Exhibits	60
Signatures	61

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KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.

GLOSSARY OF TERMS
The following glossary defines certain acronyms and terms used in this Quarterly Report on Form 10-Q. These acronyms and terms are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document.
Term	Definition
Knight-Swift/the Company/Management/We/Us/Our	Unless otherwise indicated or the context otherwise requires, these terms represent Knight-Swift Transportation Holdings Inc. and its subsidiaries.
2017 Merger	The September 8, 2017 merger of Knight Transportation, Inc. and its subsidiaries and Swift Transportation Company and its subsidiaries, pursuant to which we became Knight-Swift Transportation Holdings Inc.
2021 Debt Agreement	The Company's unsecured credit agreement, entered into on September 3, 2021, consisting of the 2021 Revolver and 2021 Term Loans, which are defined below
2021 Prudential Notes	Third amended and restated note purchase and private shelf agreement, entered into on September 3, 2021 by ACT with unrelated financial entities
2021 Revolver	Revolving line of credit under the 2021 Debt Agreement, maturing on September 3, 2026
2021 Term Loans	The Company's term loans under the 2021 Debt Agreement, collectively consisting of the 2021 Term Loan A-1, 2021 Term Loan A-2 and 2021 Term Loan A-3
2021 Term Loan A-1	The Company's term loan under the 2021 Debt Agreement, which matured on December 3, 2022
2021 Term Loan A-2	The Company's term loan under the 2021 Debt Agreement, maturing on September 3, 2024
2021 Term Loan A-3	The Company's term loan under the 2021 Debt Agreement, maturing on September 3, 2026
2023 Term Loan	The Company's term loan entered into on June 22, 2023, maturing on September 3, 2026
2022 RSA	Sixth Amendment to the Amended and Restated Receivables Sales Agreement, entered into on October 3, 2022 by Swift Receivables Company II, LLC with unrelated financial entities
2023 RSA	Seventh Amendment to the Amended and Restated Receivables Sales Agreement, entered into on October 23, 2023 by Swift Receivables Company II, LLC with unrelated financial entities
ACT	AAA Cooper Transportation, and its affiliated entity
ACT Acquisition	The Company's acquisition of 100% of the securities of ACT on July 5, 2021
Annual Report	Annual Report on Form 10-K
ASC	Accounting Standards Codification
ASU	Accounting Standards Update
Board	Knight-Swift's Board of Directors
BSBY	Bloomberg Short-Term Bank Yield Index
DOE	United States Department of Energy
EPS	Earnings Per Share
ESPP	Knight-Swift Transportation Holdings Inc. Amended and Restated 2012 Employee Stock Purchase Plan
GAAP	United States Generally Accepted Accounting Principles
IRS	Internal Revenue Service
NYSE	New York Stock Exchange
LTL	Less-than-truckload
MME	MME, Inc. and its subsidiary, Midwest Motor Express, Inc.
Quarterly Report	Quarterly Report on Form 10-Q
RSU	Restricted Stock Unit
SEC	United States Securities and Exchange Commission
SOFR	Secured overnight financing rate as administered by the Federal Reserve Bank of New York
US	The United States of America
U.S. Xpress	U.S. Xpress Enterprises, Inc. and its subsidiaries
U.S. Xpress Acquisition	The Company's acquisition of 100% of the securities of U.S. Xpress on July 1, 2023
UTXL	UTXL Enterprises, Inc.

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PART I FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Condensed Consolidated Balance Sheets (Unaudited)

	June 30, 2024		December 31, 2023
	(In thousands, except per share data)
ASSETS
Current assets:
Cash and cash equivalents	$	186,473	$	168,545
Cash and cash equivalents – restricted	149,571		297,275
Restricted investments, held-to-maturity, amortized cost	—		530
Trade receivables, net of allowance for doubtful accounts of $39,720 and $39,458, respectively	841,619		888,603
Contract balance – revenue in transit	14,267		12,246
Prepaid expenses	112,998		148,696
Assets held for sale	72,480		83,366
Income tax receivable	39,266		65,815
Other current assets	33,541		43,939
Total current assets	1,450,215		1,709,015
Gross property and equipment	6,917,535		6,720,610
Less: accumulated depreciation and amortization	(2,292,930)		(2,104,211)
Property and equipment, net	4,624,605		4,616,399
Operating lease right-of-use-assets	422,433		484,821
Goodwill	3,879,442		3,848,798
Intangible assets, net	2,021,838		2,058,882
Other long-term assets	171,792		152,850
Total assets	$	12,570,325	$	12,870,765
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	300,585	$	355,173
Accrued payroll and purchased transportation	183,858		164,884
Accrued liabilities	197,801		220,350
Claims accruals – current portion	358,553		480,200
Finance lease liabilities and long-term debt – current portion	485,907		459,759
Operating lease liabilities – current portion	123,396		144,921
Total current liabilities	1,650,100		1,825,287
Revolving line of credit	120,000		67,000
Long-term debt – less current portion	1,173,121		1,223,021
Finance lease liabilities – less current portion	434,405		407,150
Operating lease liabilities – less current portion	326,752		371,407
Accounts receivable securitization	452,039		526,508
Claims accruals – less current portion	313,856		315,476
Deferred tax liabilities	910,882		951,749
Other long-term liabilities	118,817		79,086
Total liabilities	5,499,972		5,766,684
Commitments and contingencies (Notes 7, 8, and 9)
Stockholders’ equity:
Preferred stock, par value $0.01 per share; 10,000 shares authorized; none issued	—		—
Common stock, par value $0.01 per share; 500,000 shares authorized; 161,836 and 161,385 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively.	1,618		1,613
Additional paid-in capital	4,439,489		4,426,852
Accumulated other comprehensive loss	(827)		(830)
Retained earnings	2,613,684		2,659,755
Total Knight-Swift stockholders' equity	7,053,964		7,087,390
Noncontrolling interest	16,389		16,691
Total stockholders’ equity	7,070,353		7,104,081
Total liabilities and stockholders’ equity	$	12,570,325	$	12,870,765

See accompanying notes to condensed consolidated financial statements (unaudited).

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Condensed Consolidated Statements of Comprehensive Income (Unaudited)

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
	(In thousands, except per share data)
Revenue:
Revenue, excluding truckload and LTL fuel surcharge	$	1,641,701	$	1,390,448	$	3,254,515	$	2,840,741
Truckload and LTL fuel surcharge	204,953		162,531		414,606		349,170
Total revenue	1,846,654		1,552,979		3,669,121		3,189,911
Operating expenses:
Salaries, wages, and benefits	691,878		533,237		1,384,785		1,069,979
Fuel	222,573		168,300		457,162		356,059
Operations and maintenance	138,251		101,380		272,884		200,691
Insurance and claims	105,438		137,306		227,884		275,345
Operating taxes and licenses	30,374		28,332		61,703		54,222
Communications	8,264		6,184		15,797		11,933
Depreciation and amortization of property and equipment	178,850		156,381		360,715		312,347
Amortization of intangibles	18,544		16,505		37,087		32,688
Rental expense	43,930		16,073		86,926		31,141
Purchased transportation	286,768		258,259		564,025		538,988
Impairments	5,877		—		9,859		—
Miscellaneous operating expenses	52,447		36,992		106,279		67,701
Total operating expenses	1,783,194		1,458,949		3,585,106		2,951,094
Operating income	63,460		94,030		84,015		238,817
Other (expenses) income:
Interest income	3,817		5,508		8,839		10,557
Interest expense	(40,482)		(24,354)		(81,718)		(47,445)
Other income, net	4,888		9,679		13,880		19,382
Total other (expenses) income, net	(31,777)		(9,167)		(58,999)		(17,506)
Income before income taxes	31,683		84,863		25,016		221,311
Income tax expense	11,790		21,959		8,116		54,694
Net income	19,893		62,904		16,900		166,617
Net loss attributable to noncontrolling interest	407		422		765		993
Net income attributable to Knight-Swift	20,300		63,326		17,665		167,610
Other comprehensive income	41		531		3		1,621
Comprehensive income	$	20,341	$	63,857	$	17,668	$	169,231
Earnings per share:
Basic	$	0.13	$	0.39	$	0.11	$	1.04
Diluted	$	0.13	$	0.39	$	0.11	$	1.04
Dividends declared per share:	$	0.16	$	0.14	$	0.32	$	0.28
Weighted average shares outstanding:
Basic	161,689		161,116		161,598		161,018
Diluted	162,111		161,940		162,089		161,917

See accompanying notes to the condensed consolidated financial statements (unaudited).

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Condensed Consolidated Statements of Cash Flows (Unaudited)

	Year-to-Date June 30,
	2024		2023
	(In thousands)
Cash flows from operating activities:
Net income	$	16,900	$	166,617
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property, equipment, and intangibles	397,802		345,035
Gain on sale of property and equipment	(12,604)		(35,180)
Impairments	9,859		—
Deferred income taxes	(30,970)		(8,002)
Non-cash lease expense	82,263		22,138
Gain on equity securities	(288)		(1,870)
Other adjustments to reconcile net income to net cash provided by operating activities	1,324		36,277
Increase (decrease) in cash resulting from changes in:
Trade receivables	32,115		126,429
Income tax receivable	26,549		41,671
Accounts payable	(39,647)		5,072
Accrued liabilities and claims accrual	(132,943)		46,408
Operating lease liabilities	(91,427)		(22,187)
Other assets and liabilities	51,767		(218)
Net cash provided by operating activities	310,700		722,190
Cash flows from investing activities:
Proceeds from maturities of held-to-maturity investments	530		3,620
Purchases of held-to-maturity investments	—		(30)
Proceeds from sale of property and equipment, including assets held for sale	114,033		98,755
Purchases of property and equipment	(372,661)		(517,856)
Expenditures on assets held for sale	(79)		(634)
Other cash flows from investing activities	(664)		155
Net cash used in investing activities	(258,841)		(415,990)
Cash flows from financing activities:
Repayments of finance leases and long-term debt	(100,147)		(38,148)
Proceeds from long-term debt	—		250,000
Borrowings on revolving lines of credit, net	53,000		167,000
Borrowings under accounts receivable securitization	22,000		—
Repayments of accounts receivable securitization	(96,600)		(80,000)
Proceeds from common stock issued	3,108		3,222
Dividends paid	(52,342)		(45,940)
Other cash flows from financing activities	(11,307)		(19,510)
Net cash (used in) provided by financing activities	(182,288)		236,624
Net (decrease) increase in cash, restricted cash, and equivalents	(130,429)		542,824
Cash, restricted cash, and equivalents at beginning of period	469,686		385,345
Cash, restricted cash, and equivalents at end of period	$	339,257	$	928,169

See accompanying notes to condensed consolidated financial statements (unaudited).

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Condensed Consolidated Statements of Cash Flows (Unaudited) — Continued

	Year-to-Date June 30,
	2024		2023
	(In thousands)
Supplemental disclosures of cash flow information:
Cash paid during the period for:
Interest	$	86,931	$	45,851
Income taxes	7,695		16,870
Non-cash investing and financing activities:
Equipment acquired included in accounts payable	$	29,444	$	30,789
Financing provided to independent contractors for equipment sold	1,636		3,778
Transfers from property and equipment to assets held for sale	49,673		80,947
Right-of-use assets obtained in exchange for operating lease liabilities	25,247		30,564
Property and equipment obtained in exchange for finance lease liabilities	77,472		19,797
Property and equipment obtained in exchange for debt and finance lease liabilities reclassified from operating lease liabilities	20,025		—

Reconciliation of Cash, Restricted Cash, and Equivalents:	June 30, 2024		December 31, 2023		June 30, 2023		December 31, 2022
	(In thousands)
Consolidated Balance Sheets
Cash and cash equivalents	$	186,473	$	168,545	$	228,957	$	196,770
Cash and cash equivalents – restricted 1	149,571		297,275		251,438		185,792
Acquisition escrow 2	—		—		444,657		—
Other long-term assets 1	3,213		3,866		3,117		2,783
Consolidated Statements of Cash Flows
Cash, restricted cash, and equivalents	$	339,257	$	469,686	$	928,169	$	385,345

________

1    Reflects cash and cash equivalents that are primarily restricted for claims payments.

2    Reflects restricted cash for the U.S. Xpress acquisition which closed on July 1, 2023.

See accompanying notes to condensed consolidated financial statements (unaudited).

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Condensed Consolidated Statements of Stockholders' Equity (Unaudited)

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive (Loss) Income		Total Knight-Swift Stockholders' Equity		Noncontrolling  Interest		Total Stockholders’ Equity
	Shares	Par Value
	(In thousands, except per share data)
Balances – December 31, 2023	161,385	$	1,613	$	4,426,852	$	2,659,755	$	(830)	$	7,087,390	$	16,691	$	7,104,081
Common stock issued to employees	393	4		—						4				4
Common stock issued to the Board	24	—		1,206						1,206				1,206
Common stock issued under ESPP	34	1		1,897						1,898				1,898
Shares withheld – RSU settlement						(11,651)				(11,651)				(11,651)
Employee stock-based compensation expense				10,581						10,581				10,581
Cash dividends paid and dividends accrued ($0.32 per share)						(52,085)				(52,085)				(52,085)
Net income (loss)						17,665				17,665		(765)		16,900
Other comprehensive income								3		3				3
Investment in noncontrolling interest												1,473		1,473
Distribution to noncontrolling interest				(1,047)						(1,047)		(1,010)		(2,057)
Balances – June 30, 2024	161,836	$	1,618	$	4,439,489	$	2,613,684	$	(827)	$	7,053,964	$	16,389	$	7,070,353

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive (Loss) Income		Total Knight-Swift Stockholders' Equity		Noncontrolling Interest		Total Stockholders’ Equity
	Shares	Par Value
	(In thousands, except per share data)
Balances – December 31, 2022	160,706	$	1,607	$	4,392,266	$	2,553,567	$	(2,436)	$	6,945,004	$	10,277	$	6,955,281
Common stock issued to employees	512	5		158						163				163
Common stock issued to the Board	18	—		977						977				977
Common stock issued under ESPP	40	1		2,081						2,082				2,082
Shares withheld – RSU settlement						(18,271)				(18,271)				(18,271)
Employee stock-based compensation expense				16,587						16,587				16,587
Cash dividends paid and dividends accrued ($0.28 per share)						(45,491)				(45,491)				(45,491)
Net income (loss)						167,610				167,610		(993)		166,617
Other comprehensive income								1,621		1,621				1,621
Investment in noncontrolling interest												1,716		1,716
Distribution to noncontrolling interest												(239)		(239)
Balances – June 30, 2023	161,276	$	1,613	$	4,412,069	$	2,657,415	$	(815)	$	7,070,282	$	10,761	$	7,081,043

See accompanying notes to condensed consolidated financial statements (unaudited).

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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) — Continued

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive (Loss) Income		Total Knight-Swift Stockholders' Equity		Noncontrolling  Interest		Total Stockholders’ Equity
	Shares	Par Value
	(In thousands, except per share data)
Balances – March 31, 2024	161,593	$	1,616	$	4,430,736	$	2,624,666	(868)		$	7,056,150	$	16,072	$	7,072,222
Common stock issued to employees	202	2		—						2				2
Common stock issued to the Board	24	—		1,208						1,208				1,208
Common stock issued under ESPP	17	—		945						945				945
Shares withheld – RSU settlement						(5,216)				(5,216)				(5,216)
Employee stock-based compensation expense				6,600						6,600				6,600
Cash dividends paid and dividends accrued ($0.16 per share)						(26,066)				(26,066)				(26,066)
Net income (loss)						20,300				20,300		(407)		19,893
Other comprehensive income								41		41				41
Investment in noncontrolling interest												743		743
Distribution to noncontrolling interest												(19)		(19)
Balances – June 30, 2024	161,836	$	1,618	$	4,439,489	$	2,613,684	$	(827)	$	7,053,964	$	16,389	$	7,070,353

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive (Loss) Income		Total Knight-Swift Stockholders' Equity		Noncontrolling Interest		Total Stockholders’ Equity
	Shares	Par Value
	(In thousands, except per share data)
Balances – March 31, 2023	161,009	$	1,610	$	4,401,276	$	2,623,373	(1,346)		$	7,024,913	$	10,681	$	7,035,594
Common stock issued to employees	230	2		115						117				117
Common stock issued to the Board	18	—		977						977				977
Common stock issued under ESPP	19	1		1,041						1,042				1,042
Shares withheld – RSU settlement						(6,523)				(6,523)				(6,523)
Employee stock-based compensation expense				8,660						8,660				8,660
Cash dividends paid and dividends accrued ($0.14 per share)						(22,761)				(22,761)				(22,761)
Net income (loss)						63,326				63,326		(422)		62,904
Other comprehensive income								531		531				531
Investment in noncontrolling interest												741		741
Distribution to noncontrolling interest												(239)		(239)
Balances – June 30, 2023	161,276	$	1,613	$	4,412,069	$	2,657,415	$	(815)	$	7,070,282	$	10,761	$	7,081,043

See accompanying notes to condensed consolidated financial statements (unaudited).

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Notes to Condensed Consolidated Financial Statements (Unaudited)

Note 1 — Introduction and Basis of Presentation

Certain acronyms and terms used throughout this Quarterly Report are specific to the Company, commonly used in the trucking industry, or are otherwise frequently used throughout this document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document.

Description of Business

Knight-Swift is a transportation solutions provider, headquartered in Phoenix, Arizona. During the year-to-date period ended June 30, 2024, the Company operated an average of 23,071 tractors (comprised of 20,913 company tractors and 2,158 independent contractor tractors) and 93,495 trailers within the Truckload segment and leasing activities within the non-reportable segments. The LTL segment operated an average of 3,393 tractors and 8,796 trailers. Additionally, the Intermodal segment operated an average of 611 tractors and 12,581 intermodal containers. As of June 30, 2024, the Company's four reportable segments were Truckload, LTL, Logistics, and Intermodal.

Basis of Presentation

The condensed consolidated financial statements and footnotes included in this Quarterly Report include the accounts of Knight-Swift Transportation Holdings Inc. and its subsidiaries and should be read in conjunction with the consolidated financial statements and footnotes included in Knight-Swift's 2023 Annual Report. In management's opinion, these condensed consolidated financial statements were prepared in accordance with GAAP and include all adjustments necessary (consisting of normal recurring adjustments) for the fair statement of the periods presented.

With respect to transactional/durational data, references to years pertain to calendar years. Similarly, references to quarters pertain to calendar quarters.

Note regarding comparability — The reported results do not include U.S. Xpress's operating results prior to its acquisition by the Company on July 1, 2023 in accordance with the accounting treatment applicable to the transaction. Accordingly, comparisons between the Company's current and prior period results may not be meaningful.

Seasonality

In the full truckload transportation industry, results of operations generally follow a seasonal pattern. Freight volumes in the first quarter are typically lower due to less consumer demand, customers reducing shipments following the holiday season, and inclement weather. At the same time, operating expenses generally increase, and tractor productivity of the Company's Truckload fleet, independent contractors and third-party carriers decreases during the winter months due to decreased fuel efficiency, increased cold weather-related equipment maintenance and repairs, and increased insurance claims and costs attributed to higher accident frequency from harsh weather. These factors typically lead to lower operating profitability, as compared to other parts of the year. Additionally, beginning in the latter half of the third quarter and continuing into the fourth quarter, the Company typically experiences surges pertaining to holiday shopping trends toward delivery of gifts purchased over the Internet, as well as the length of the holiday season (consumer shopping days between Thanksgiving and Christmas). However, as the Company continues to diversify its business through expansion into the LTL industry, warehousing, and other activities, seasonal volatility is becoming more tempered. Additionally, macroeconomic trends and cyclical changes in the trucking industry, including imbalances in supply and demand, can override the seasonality faced in the industry.

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Note 2 — Recently Issued Accounting Pronouncements

Date Issued	Reference	Description	Expected Adoption Date and Method	Financial Statement Impact
March 2024	ASU No. 2024-02: Codification Improvements - Amendments to Remove References to the Concepts Statements	The amendments in this ASU contain amendments to the Codification that remove references to various Concepts Statements. In most cases, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material
March 2024	ASU No. 2024-01: Compensation - Stock Compensation (Topic 718)	The amendments in this ASU improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material

Note 3 — Acquisitions

Second quarter 2024 developments related to the Company's recent acquisitions are discussed below.

U.S. Xpress

On July 1, 2023, the Company acquired Chattanooga, Tennessee-based U.S. Xpress Enterprises, Inc. ("U.S. Xpress"), one of the largest asset-based truckload carriers in the United States.

During the quarter ended June 30, 2024, the Company's consolidated operating results included U.S. Xpress' total revenue of $405.6 million and a net loss of $13.3 million. U.S. Xpress' net loss during the quarter ended June 30, 2024 included $2.3 million related to the amortization of intangible assets acquired in the U.S. Xpress Acquisition.

For the year-to-date period ended June 30, 2024, the Company's consolidated operating results included U.S. Xpress' total revenue of $819.0 million and a net loss of $19.3 million. U.S. Xpress' net loss for the year-to-date period ended June 30, 2024 included $4.6 million related to the amortization of intangible assets acquired in the U.S. Xpress Acquisition.

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Purchase Price Allocation

The purchase price was allocated based on estimated fair values of the assets and liabilities acquired as of the acquisition date. The purchase price allocation was open for adjustments through the end of the measurement period, which closed one year from the July 1, 2023 acquisition date.

	July 1, 2023 Opening Balance Sheet as Reported at December 31, 2023		Adjustments		July 1, 2023 Opening Balance Sheet as Reported at June 30, 2024
Fair value of the consideration transferred	$	632,109	$	—	$	632,109
Cash and cash equivalents	3,321		—		3,321
Receivables	216,659		345		217,004
Prepaid expenses	21,347		—		21,347
Other current assets	47,317		—		47,317
Property and equipment	433,210		—		433,210
Operating lease right-of-use assets	337,055		—		337,055
Identifiable intangible assets 1	348,000		—		348,000
Other noncurrent assets	28,457		—		28,457
Total assets	1,435,366		345		1,435,711
Accounts payable	(115,494)		(1,600)		(117,094)
Accrued payroll and payroll-related expenses	(27,485)		—		(27,485)
Accrued liabilities	(19,966)		(809)		(20,775)
Claims accruals – current and noncurrent portions	(180,251)		(11,650)		(191,901)
Operating lease liabilities – current and noncurrent portions	(376,763)		—		(376,763)
Long-term debt and finance leases – current and noncurrent portions	(337,949)		—		(337,949)
Deferred tax liabilities	(33,072)		9,942		(23,130)
Other long-term liabilities	(34,230)		(26,872)		(61,102)
Total liabilities	(1,125,210)		(30,989)		(1,156,199)
Noncontrolling interest	(391)		—		(391)
Total stockholders' equity	(391)		—		(391)
Goodwill	$	322,344	$	30,644	$	352,988

1    Includes $184.5 million in customer relationships and $163.5 million in trade names.

Pro Forma Information — The following unaudited pro forma information combines the historical operations of the Company and U.S. Xpress giving effect to the U.S. Xpress Acquisition, and related transactions as if consummated on January 1, 2023, the beginning of the comparative period presented.

	Quarter Ended June 30,		Year-to-Date June 30,
	2023		2023
	(In thousands, except per share data)
Total revenue	$	2,015,537	$	4,145,195
Net income attributable to Knight-Swift	34,790		112,938
Earnings per share – diluted	0.21		0.70

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The unaudited pro forma condensed combined financial information has been presented for comparative purposes only and includes certain adjustments such as recognition of assets acquired at estimated fair values and related depreciation and amortization, elimination of transaction costs incurred by Knight-Swift and U.S. Xpress during the periods presented that were directly related to the U.S. Xpress Acquisition, and related income tax effects of these items. As a result of the U.S. Xpress Acquisition, both Knight-Swift and U.S. Xpress incurred certain acquisition-related expenses, including professional legal and advisory fees, acceleration of share-based compensation, bonus incentives, severance payments, filing fees and other miscellaneous expenses. These acquisition-related expenses totaled $20.7 million and $25.3 million during the quarter and year-to-date periods ended June 30, 2023. These expenses were eliminated in the presentation of the unaudited pro forma "Net income attributable to Knight-Swift" presented above.

The unaudited pro forma condensed combined financial information does not purport to represent the actual results of operations that Knight-Swift and U.S. Xpress would have achieved had the companies been combined during the periods presented in the unaudited pro forma condensed combined financial statements and is not intended to project the future results of operations that the combined company may achieve after the identified transactions. The unaudited pro forma condensed combined financial information does not reflect any cost savings that may be realized as a result of the U.S. Xpress Acquisition and also does not reflect any restructuring or integration-related costs to achieve those potential cost savings.

The Company did not complete any material acquisitions during the quarter ended June 30, 2024.

Subsequent to June 30, 2024, the Company acquired the remaining 18.5% non-controlling interest of Eleos.

Effective July 30, 2024, the Company, through a wholly owned subsidiary, acquired the operating assets and assumed certain liabilities of the regional less-than-truckload division of Dependable Highway Express, Inc. based in Los Angeles, California for total cash consideration of approximately $185 million funded by the 2021 Revolver. The Company has not completed the initial accounting for this transaction as it is still in the preliminary stages of assessing the fair value of the underlying tangible and intangible assets.

Note 4 — Income Taxes

Effective Tax Rate — The quarter ended June 30, 2024 and June 30, 2023 effective tax rates were 37.2% and 25.9%, respectively. The year-to-date June 30, 2024 and June 30, 2023 effective tax rates were 32.4% and 24.7% respectively. The current quarter effective tax rate was primarily impacted by a reduction in pre-tax income.

Valuation Allowance — Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. As of June 30, 2024 and December 31, 2023, the Company has $10.4 million in valuation allowance associated with the capital loss and state operating loss carryforwards which may not be utilized in the future.

Unrecognized Tax Benefits — The Company has unrecognized tax benefits associated with tax credit carryforwards. Management does not expect a decrease in unrecognized tax benefits relating to credits to be necessary within the next twelve months.

Interest and Penalties — The Company did not have accrued interest and penalties related to unrecognized tax benefits as of June 30, 2024 and December 31, 2023.

Tax Examinations — Certain of the Company's subsidiaries are currently under examination by various Federal and state jurisdictions for tax years ranging from 2009 to 2022. At the completion of these examinations, management does not expect any adjustments which would have a material impact on the Company's effective tax rate. Years subsequent to 2018 remain subject to examination.

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Note 5 — Accounts Receivable Securitization

On October 23, 2023, the Company entered into the 2023 RSA, which further amended the 2022 RSA. The 2023 RSA is a secured borrowing that is collateralized by the Company's eligible receivables, for which the Company is the servicing agent. The Company's receivable originator subsidiaries sell, on a revolving basis, undivided interests in all of their eligible accounts receivable to Swift Receivables Company II, LLC ("SRCII") who in turn sells a variable percentage ownership in those receivables to the various purchasers. The Company's eligible receivables are included in "Trade receivables, net of allowance for doubtful accounts" in the consolidated balance sheets. As of June 30, 2024, the Company's eligible receivables generally have high credit quality, as determined by the obligor's corporate credit rating.

The 2023 RSA is subject to fees, various affirmative and negative covenants, representations and warranties, and default and termination provisions customary for facilities of this type. The Company was in compliance with these covenants as of June 30, 2024. Collections on the underlying receivables by the Company are held for the benefit of SRCII and the various purchasers and are unavailable to satisfy claims of the Company and its subsidiaries.

The following table summarizes the key terms of the 2023 RSA (dollars in thousands):

	2023 RSA
	(Dollars in thousands)
Effective date	October 23, 2023
Final maturity date	October 1, 2025
Borrowing capacity	$575,000
Accordion option 1	$100,000
Unused commitment fee rate 2	20 to 40 basis points
Program fees on outstanding balances 3	one month SOFR + credit adjustment spread 10 basis points + 82.5 basis points

1The accordion option increases the maximum borrowing capacity, subject to participation of the purchasers.

2The commitment fee rates are based on the percentage of the maximum borrowing capacity utilized.

3As identified within the 2023 RSA, the lender can trigger an amendment by identifying and deciding upon a replacement index for SOFR.

Availability under the 2023 RSA is calculated as follows:

	June 30, 2024		December 31, 2023
	(In thousands)
Borrowing base, based on eligible receivables	$	479,900	$	527,600
Less: outstanding borrowings 1	(452,400)		(527,000)
Less: outstanding letters of credit	(27,167)		—
Availability under accounts receivable securitization facilities	$	333	$	600

1Outstanding borrowings are included in "Accounts receivable securitization" in the condensed consolidated balance sheets and are offset by deferred loan costs of $0.4 million and $0.5 million as of June 30, 2024 and December 31, 2023, respectively. Interest accrued on the aggregate principal balance at a rate of 6.3% as of June 30, 2024 and December 31, 2023.

Refer to Note 12 for information regarding the fair value of the 2023 RSA.

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Note 6 — Debt and Financing

Other than the Company's accounts receivable securitization as discussed in Note 5, the Company's long-term debt consisted of the following:

	June 30, 2024		December 31, 2023
	(In thousands)
2021 Term Loan A-2, due September 3, 2024, net 1 2	199,975		199,902
2021 Term Loan A-3, due September 3, 2026, net 1 2	799,235		799,058
2023 Term Loan, due September 3, 2026, net 1 3	249,297		249,135
Revenue equipment installment notes 1 4	251,335		279,339
Prudential Notes, net 1	16,909		25,078
Other	7,195		8,567
Total long-term debt, including current portion	1,523,946		1,561,079
Less: current portion of long-term debt	(350,825)		(338,058)
Long-term debt, less current portion	$	1,173,121	$	1,223,021

	June 30, 2024		December 31, 2023
	(In thousands)
Total long-term debt, including current portion	$	1,523,946	$	1,561,079
2021 Revolver, due September 3, 2026 1 5	120,000		67,000
Long-term debt, including revolving line of credit	$	1,643,946	$	1,628,079

1Refer to Note 12 for information regarding the fair value of debt.

2As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

3As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amounts of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

4The revenue equipment installment loans were assumed at the close of the U.S. Xpress Acquisition and have a weighted average interest rate of 4.82% and 4.70% as of June 30, 2024 and December 31, 2023, respectively.

5The Company also had outstanding letters of credit of $18.1 million and $18.0 million under the 2021 Revolver, primarily related to workers' compensation and self-insurance liabilities for both June 30, 2024 and December 31, 2023, respectively. The Company also had outstanding letters of credit of $265.0 million and $264.3 million under a separate bilateral agreement which do not impact the availability of the 2021 Revolver as of June 30, 2024 and December 31, 2023, respectively.

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Credit Agreements

2021 Debt Agreement — On September 3, 2021, the Company entered into the $2.3 billion 2021 Debt Agreement (an unsecured credit facility) with a group of banks, replacing the Company's prior debt agreements. The 2021 Debt Agreement included the 2021 Term Loan A-1 which was paid off on December 3, 2022. The following table presents the key terms of the 2021 Debt Agreement:

	2021 Term Loan A-2	2021 Term Loan A-3	2021 Revolver 2
2021 Debt Agreement Terms	(Dollars in thousands)
Maximum borrowing capacity	$200,000	$800,000	$1,100,000
Final maturity date	September 3, 2024	September 3, 2026	September 3, 2026
Interest rate margin reference rate	BSBY	BSBY	BSBY
Interest rate minimum margin 1	0.75%	0.88%	0.88%
Interest rate maximum margin 1	1.38%	1.50%	1.50%
Minimum principal payment — amount	$—	$10,000	$—
Minimum principal payment — frequency	Once	Quarterly	Once
Minimum principal payment — commencement date	September 3, 2024	September 30, 2024	September 3, 2026

1The interest rate margin for the 2021 Term Loans and 2021 Revolver is based on the Company's consolidated leverage ratio. As of June 30, 2024, interest accrued at 6.72% on the 2021 Term Loan A-2, 6.84% on the 2021 Term Loan A-3, and 6.84% on the 2021 Revolver.

2The commitment fee for the unused portion of the 2021 Revolver is based on the Company's consolidated leverage ratio, and ranges from 0.1% to 0.2%. As of June 30, 2024, commitment fees on the unused portion of the 2021 Revolver accrued at 0.2% and outstanding letter of credit fees accrued at 1.5%.

Pursuant to the 2021 Debt Agreement, the 2021 Revolver and the 2021 Term Loans contain certain financial covenants with respect to a maximum net leverage ratio and a minimum consolidated interest coverage ratio. The 2021 Debt Agreement provides flexibility regarding the use of proceeds from asset sales, payment of dividends, stock repurchases, and equipment financing. In addition to the financial covenants, the 2021 Debt Agreement includes usual and customary events of default for a facility of this nature and provides that, upon the occurrence and continuation of an event of default, payment of all amounts payable under the 2021 Debt Agreement may be accelerated, and the lenders' commitments may be terminated. The 2021 Debt Agreement contains certain usual and customary restrictions and covenants relating to, among other things, dividends (which are restricted only if a default or event of default occurs and is continuing or would result therefrom), liens, affiliate transactions, and other indebtedness. As of June 30, 2024, the Company was in compliance with the covenants under the 2021 Debt Agreement.

Borrowings under the 2021 Debt Agreement are made by Knight-Swift Transportation Holdings Inc. and are guaranteed by certain of the Company's material domestic subsidiaries (other than its captive insurance subsidiaries, driving academy subsidiary, and bankruptcy-remote special purpose subsidiary).

2023 Term Loan — On June 22, 2023, the Company entered into the $250.0 million 2023 Term Loan (an unsecured credit facility) with a group of banks. The 2023 Term Loan matures on September 3, 2026. There are no scheduled principal payments due until maturity. The 2023 Term Loan contains terms similar to the 2021 Debt Agreement. The proceeds received from the 2023 Term Loan were used to pay fees, commissions and expenses in connection with the Company's acquisition of U.S. Xpress. The interest rate applicable to the 2023 Term Loan is subject to a leverage-based grid and as of June 30, 2024 is equal to SOFR plus the 0.1% SOFR adjustment plus 1.50%. As of June 30, 2024, interest accrued at 7.17% on the 2023 Term Loan.

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U.S. Xpress's Revenue Equipment Installment Notes — In connection with the U.S. Xpress Acquisition, the Company assumed revenue equipment installment notes with various lenders to finance tractors and trailers. Payments are due in monthly installments with final maturities at various dates through March 15, 2028, and the notes are secured by related revenue equipment with a net book value of $217.0 million as of June 30, 2024. Payment terms generally range from 36 months to 84 months. The interest rates as of June 30, 2024 range from 2.0% to 5.3%.

2021 Prudential Notes — The 2021 Prudential Notes previously allowed ACT to borrow up to $125 million, less amounts currently outstanding with Prudential Capital Group, provided that certain financial ratios are maintained. The 2021 Prudential Notes have interest rates ranging from 4.05% to 4.40% and various maturity dates ranging from January 2025 through January 2028. The 2021 Prudential Notes are unsecured and contain usual and customary restrictions on, among other things, the ability to make certain payments to stockholders, similar to the provisions of the Company's 2021 Debt Agreement. As of June 30, 2024, the Company was in compliance with the covenants under the 2021 Prudential Notes.

Fair Value Measurement — See Note 12 for fair value disclosures regarding the Company's debt instruments.

Note 7 — Defined Benefit Pension Plan

Net periodic pension income and benefits paid during the quarter ended June 30, 2024 and 2023 were immaterial.

Assumptions

A weighted-average discount rate of 5.25% was used to determine benefit obligations as of June 30, 2024.

The following weighted-average assumptions were used to determine net periodic pension cost:

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Discount rate	5.03	%	4.65	%	4.86	%	4.76	%
Expected long-term rate of return on pension plan assets	6.00	%	6.00	%	6.00	%	6.00	%

Refer to Note 12 for additional information regarding fair value measurements of the Company's investments.

Note 8 — Purchase Commitments

As of June 30, 2024, the Company had outstanding commitments to purchase revenue equipment of $418.7 million in the remainder of 2024 ($368.4 million of which were tractor commitments), and none thereafter. These purchases may be financed through any combination of finance leases, operating leases, debt, proceeds from sales of existing equipment, and cash flows from operations.

As of June 30, 2024, the Company had outstanding commitments to purchase facilities and non-revenue equipment of $56.8 million in the remainder of 2024, $63.6 million from 2025 through 2026, $1.9 million from 2027 through 2028, and none thereafter. Factors such as costs and opportunities for future terminal expansions may change the amount of such expenditures.

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Note 9 — Contingencies and Legal Proceedings

Legal Proceedings

The Company is party to certain legal proceedings incidental to its business. The majority of these claims relate to bodily injury, property damage, cargo and workers' compensation incurred in the transportation of freight, as well as certain class action litigation related to personnel and employment matters. We record a liability when we believe that it is probable that a loss has been incurred and the amount can be reasonably estimated.

Based on our present knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of open claims and pending litigation, taking into account existing reserves, is not likely to have a materially adverse impact on our condensed consolidated financial statements. However, any future claims or adverse developments in existing claims could impact this analysis. There are inherent uncertainties in these legal matters, some of which are beyond management's control, making the ultimate outcomes difficult to predict. Moreover, management's views and estimates related to these matters may change in the future, as new events and circumstances arise and the matters continue to develop. Cash flows or results of operations could be materially affected in any particular period by the resolution of one or more of these contingencies.

The Company has made accruals with respect to its legal matters where appropriate, as well as legal fees which are included in "Accrued liabilities" in the condensed consolidated balance sheets. The Company has recorded an aggregate accrual of approximately $6.6 million, relating to the Company's outstanding legal proceedings as of June 30, 2024.

Commutation of Third-Party Carrier Insurance Risk

On February 14, 2024, the Company finalized the terms of a transaction with the insurer under the third-party reinsurance agreement covering auto liability associated with the Company's third-party carrier insurance business. The agreement effectively transferred $161.1 million in third-party auto liability insurance claim liabilities to the insurer for policy periods from October 1, 2020 through March 31, 2023 funded by transferring the corresponding restricted cash held in trust for payment of the third-party insurance claims.

Note 10 — Share Repurchase Plans

In April 2022, the Company announced that the Board approved the repurchase of up to $350.0 million of the Company's outstanding common stock (the "2022 Knight-Swift Share Repurchase Plan"). With the adoption of the 2022 Knight-Swift Share Repurchase Plan, the Company terminated the 2020 Knight-Swift Share Repurchase Plan, which had approximately $42.8 million of authorized purchases remaining upon termination.

The Company made no share repurchases during the quarter and year-to-date periods ended June 30, 2024 and 2023.no

As of June 30, 2024 and December 31, 2023, the Company had $200.0 million remaining under the 2022 Knight-Swift Share Repurchase Plan.

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Note 11 — Weighted Average Shares Outstanding

Earnings per share, basic and diluted, as presented in the condensed consolidated statements of comprehensive income, are calculated by dividing net income attributable to Knight-Swift by the respective weighted average common shares outstanding during the period.

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding:

	Quarter Ended June 30,		Year-to-Date June 30,
	2024	2023	2024	2023
	(In thousands)
Basic weighted average common shares outstanding	161,689	161,116	161,598	161,018
Dilutive effect of equity awards	422	824	491	899
Diluted weighted average common shares outstanding	162,111	161,940	162,089	161,917
Anti-dilutive shares excluded from earnings per diluted share 1	525	110	378	61

1    Shares were excluded from the dilutive-effect calculation because the outstanding awards' exercise prices were greater than the average market price of the Company's common stock for the periods presented.

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Note 12 — Fair Value Measurement

The following table presents the carrying amounts and estimated fair values of the Company's major categories of financial assets and liabilities:

		June 30, 2024				December 31, 2023
	Condensed Consolidated Balance Sheets Caption	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
		(In thousands)
Financial Assets:
Equity method investments	Other long-term assets	$	120,161	$	120,161	$	102,252	$	102,252
Financial Liabilities:
2021 Term Loan A-2, due September 2024 1	Finance lease liabilities and long-term debt – current portion	199,975		200,000		199,902		200,000
2021 Term Loan A-3, due September 2026 1	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	799,235		800,000		799,058		800,000
2023 Term Loan, due September 2026 2	Long-term debt – less current portion	249,297		250,000		249,135		250,000
2021 Revolver, due September 2026	Revolving line of credit	120,000		120,000		67,000		67,000
Revenue equipment installment notes 3	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	251,335		251,335		279,339		279,339
2021 Prudential Notes 4	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	16,909		16,925		25,078		25,100
2023 RSA, due October 2025 5	Accounts receivable securitization -less current portion	452,039		452,400		526,508		527,000
Mandatorily redeemable contingent consideration 6	Accrued liabilities	134,107		134,107		134,107		134,107
Contingent consideration 6	Accrued liabilities, Other long-term liabilities	40,859		40,859		40,859		40,859

1As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

2As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amount of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

3As of June 30, 2024, the carrying amount of the revenue equipment installment notes included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the revenue equipment installment notes included $1.3 million in fair value adjustments.

4As of June 30, 2024, the carrying amount of the 2021 Prudential Notes was net of approximately $16,000 in deferred loan costs and included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the 2021 Prudential Notes was net of $22,000 in deferred loan costs and included $1.1 million in fair value adjustments.

5The carrying amount of the 2023 RSA was net of $0.4 million and $0.5 million in deferred loan costs as of June 30, 2024 and December 31, 2023, respectively.

6The contingent consideration is primarily related to the U.S. Xpress Acquisition.

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Recurring Fair Value Measurements (Assets) — As of June 30, 2024 and December 31, 2023, there were no major categories of assets estimated at fair value that were measured on a recurring basis.

Recurring Fair Value Measurements (Liabilities) — The following table depicts the level in the fair value hierarchy of the inputs used to estimate the fair value of liabilities measured on a recurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Gain (Loss)
	(In thousands)
As of June 30, 2024
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	—
As of December 31, 2023
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	3,359

1Contingent consideration is associated with the U.S. Xpress Acquisition and certain other investments. The Company did not recognize any gains (losses) in the quarter and year-to-date periods ended June 30, 2024.The Company recognized a gain of $2.5 million during the quarter and year-to-date periods ended June 30, 2023.

Nonrecurring Fair Value Measurements (Assets) — The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Loss
	(In thousands)
As of June 30, 2024
Buildings 1	$	—	$	—	$	—	$	—	$	(288)
Operating lease right-of-use assets 2	$	—	$	—	$	—	$	—	$	(5,300)
Equipment 3	$	—	$	—	$	—	$	—	$	(4,271)
As of December 31, 2023
Buildings 1	$	—	$	—	$	—	$	—	$	(187)
Equipment 3	$	—	$	—	$	—	$	—	$	(469)
Software 4	$	—	$	—	$	—	$	—	$	(1,580)

1    Reflects the non-cash impairment of building improvements (within the Truckload segment and the All Other Segments).

2    Reflects the non-cash impairment related to the market value of a facility lease (within the Truckload Segment).

3    Reflects the non-cash impairment of certain revenue equipment held for sale and other equipment (within the Truckload segment and the All Other Segments).

4    Reflects the non-cash impairment of software (within the All Other Segments).

Nonrecurring Fair Value Measurements (Liabilities) — As of June 30, 2024 and December 31, 2023, the Company had no major categories of liabilities estimated at fair value that were measured on a nonrecurring basis.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) — CONTINUED

Gain on Sale of Revenue Equipment — Net gains on disposals, including disposals of property and equipment classified as assets held for sale, are reported in "Miscellaneous operating expenses" in the condensed consolidated statements of comprehensive income. The Company recorded net gains on disposals of:

•$6.0 million and $14.3 million for the quarters ended June 30, 2024 and 2023, respectively.

•$12.6 million and $35.2 million for the year-to-date periods ended June 30, 2024 and 2023 respectively.

Fair Value of Pension Plan Assets — The following table sets forth by level the fair value hierarchy of ACT's pension plan financial assets accounted for at fair value on a recurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. ACT's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels.

			Fair Value Measurements at Reporting Date Using:
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In thousands)
As of June 30, 2024
Fixed income funds	32,800		32,800		—		—
Cash and cash equivalents	983		983		—		—
Total pension plan assets	$	33,783	$	33,783	$	—	$	—
As of December 31, 2023
Fixed income funds	34,536		34,536		—		—
Cash and cash equivalents	887		887		—		—
Total pension plan assets	$	35,423	$	35,423	$	—	$	—

Note 13 — Related Party Transactions

	Quarter Ended June 30,								Year-to-Date June 30,
	2024				2023				2024				2023
	Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift
	(In thousands)
Facility and Equipment Leases	$	250	$	141	$	—	$	21	$	447	$	291	$	—	$	46
Other Services	$	—	$	8	$	—	$	259	$	—	$	17	$	27	$	393

	June 30, 2024				December 31, 2023
	Receivable		Payable		Receivable		Payable
	(In thousands)
Certain affiliates 1	$	—	$	162	$	23	$	37

1"Certain affiliates" includes entities that are associated with various board members and executives and require approval by the Audit Committee of the Board prior to completing transactions. Transactions with these entities generally include facility and equipment leases, equipment sales, and other services.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) — CONTINUED

Note 14 — Financial Information by Segment and Geography

Segment Information

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Revenue:	(In thousands)
Truckload	$	1,264,237	$	953,659	$	2,527,252	$	1,965,904
LTL	306,478		267,105		588,600		522,409
Logistics	131,700		119,943		258,429		258,226
Intermodal	97,528		104,327		185,513		214,899
Subtotal	$	1,799,943	$	1,445,034	$	3,559,794	$	2,961,438
All Other Segments	68,279		130,110		153,358		272,096
Intersegment eliminations	(21,568)		(22,165)		(44,031)		(43,623)
Total revenue	$	1,846,654	$	1,552,979	$	3,669,121	$	3,189,911

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Operating income (loss):	(In thousands)
Truckload	$	23,483	$	67,911	$	46,630	$	183,810
LTL	33,049		30,238		53,336		56,820
Logistics	4,759		9,566		7,232		22,386
Intermodal	(1,717)		(6,632)		(6,625)		(1,530)
Subtotal	$	59,574	$	101,083	$	100,573	$	261,486
All Other Segments 1	3,886		(7,053)		(16,558)		(22,669)
Operating income	$	63,460	$	94,030	$	84,015	$	238,817

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Depreciation and amortization of property and equipment:	(In thousands)
Truckload	$	136,952	$	116,430	$	276,945	$	233,232
LTL	18,995		16,820		37,094		33,008
Logistics	979		987		1,930		2,030
Intermodal	5,554		4,777		11,010		9,209
Subtotal	$	162,480	$	139,014	$	326,979	$	277,479
All Other Segments	16,370		17,367		33,736		34,868
Depreciation and amortization of property and equipment	$	178,850	$	156,381	$	360,715	$	312,347

1The year-to-date $16.6 million operating loss within our All Other Segments is primarily driven by the $16.3 million operating loss in the third-party insurance business.

Geographical Information

In the aggregate, total revenue from the Company's international operations was less than 5.0% of consolidated total revenue for the quarter and year-to-date periods ended June 30, 2024 and 2023. Additionally, long-lived assets on the Company's international subsidiary balance sheets were less than 5.0% of consolidated total assets as of June 30, 2024 and December 31, 2023.

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

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report contains certain statements that may be considered "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act") and Section 27A of the Securities Act of 1933, as amended. All statements, other than statements of historical or current fact, are statements that could be deemed forward-looking statements, including without limitation:

•any projections of or guidance regarding earnings, earnings per share, revenues, cash flows, dividends, capital expenditures, or other financial items,

•any statement of plans, strategies, and objectives of management for future operations,

•any statements concerning proposed acquisition plans, new services, or developments,

•any statements regarding future economic conditions or performance, and

•any statements of belief and any statements of assumptions underlying any of the foregoing. 

In this Quarterly Report, forward-looking statements include, but are not limited to, statements we make concerning:

•our ability to gain market share and adapt to market conditions, the ability of our infrastructure to support future growth, future market position, and the ability, desire, and effects of expanding our service offerings (including expansion of our LTL network), whether we grow organically or through potential acquisitions,

•our ability to recruit and retain qualified driving associates,

•future safety performance,

•future performance of our segments or businesses,

•future capital expenditures, equipment prices (including used equipment) and availability, our equipment purchasing or leasing plans, and mix of our owned versus leased revenue equipment, and our equipment turnover,

•the impact of pending legal proceedings,

•future insurance claims, coverage, coverage limits, premiums, and retention limits,

•the expected freight environment, including freight demand, capacity, seasonality, and volumes,

•economic conditions and growth, including future inflation, consumer spending, supply chain conditions, labor supply and relations, and US Gross Domestic Product ("GDP") changes,

•expected liquidity and methods for achieving sufficient liquidity, including our expected need or desire to incur indebtedness and our ability to comply with debt covenants,

•future fuel prices and availability and the expected impact of fuel efficiency initiatives,

•future expenses, including depreciation and amortization, purchased transportation, impairments, interest rates, cost structure, and our ability to control costs,

•future rates, operating profitability and margin, load count, asset utilization, and return on capital,

•future third-party service provider relationships and availability, including pricing terms,

•future contracted pay rates with independent contractors, ability to lease equipment to independent contractors, and compensation arrangements with driving associates,

•future capital allocation, capital structure, capital requirements, and growth strategies and opportunities,

•future share repurchases and dividends,

•future tax rates,

•expected tractor and trailer fleet age, fleet size, and demand for trailer fleet,

•future investment in and deployment of new or updated technology or services,

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•future classification of our independent contractors, including the impact of new laws and regulations regarding classification,

•political conditions and regulations, including conflicts, trade regulation, quotas, duties, or tariffs, and any future changes to the foregoing,

•the U.S. Xpress transaction, including integration efforts and any future effects of the acquisition, and

•others.

Such statements may be identified by their use of terms or phrases such as "believe," "may," "could," "will," "would," "should," "expects," "estimates," "designed," "likely," "foresee," "goals," "seek," "target," "forecast," "projects," "anticipates," "plans," "intends," "hopes," "strategy," "potential," "objective," "mission," "continue," "outlook," "feel," and similar terms and phrases. Forward-looking statements are based on currently available operating, financial, and competitive information. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified, which could cause future events and actual results to materially differ from those set forth in, contemplated by, or underlying the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in Part I, Item 1A "Risk Factors" in our 2023 Annual Report, and various disclosures in our press releases, stockholder reports, and other filings with the SEC.

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

Reference to Glossary of Terms

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

Reference to Annual Report

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with the condensed consolidated financial statements (unaudited) and footnotes included in this Quarterly Report, as well as the consolidated financial statements and footnotes included in our 2023 Annual Report.

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Executive Summary

Company Overview

Knight-Swift Transportation Holdings Inc. is one of North America's largest and most diversified freight transportation companies, providing multiple full truckload, LTL, intermodal, and other complementary services. Our objective is to operate our business with industry-leading margins and continued organic growth and growth through acquisitions while providing safe, high-quality, cost-effective solutions for our customers. Knight-Swift uses a nationwide network of business units and terminals in the US and Mexico to serve customers throughout North America. In addition to operating the country's largest truckload fleet, Knight-Swift also contracts with third-party equipment providers to provide a broad range of transportation services to our customers while creating quality driving jobs for our driving associates and successful business opportunities for independent contractors. Our four reportable segments are Truckload, LTL, Logistics, and Intermodal. Additionally, we have various non-reportable segments.

Key Financial Highlights — Year-to-Date June 30, 2024

Consolidated operating income decreased 64.8% to $84.0 million during the first half of 2024, as compared to the same period last year. Net income attributable to Knight-Swift decreased 89.5% to $17.7 million.

•Truckload — 98.2% operating ratio during the first half of 2024. The Adjusted Operating Ratio1 was 97.3%, with a 29.6% year-over-year increase in revenue, excluding fuel surcharge and intersegment transactions, as a result of the inclusion of the truckload business of U.S. Xpress. Adjusted Operating Ratio worsened by 820 basis points year-over-year primarily due to the 7.7% decline in revenue per loaded mile, excluding fuel surcharge and intersegment transactions, and the 2.7% increase in cost per mile largely due to inflationary prices.

•LTL — 90.9% operating ratio during the first half of 2024. The Adjusted Operating Ratio1 increased 250 basis points year-over-year to 87.9%, as a result of weather disruptions on volume, incremental operating, maintenance, and labor costs as we expand. We opened 18 new locations during the first half of 2024 as we continue to grow our network.

•Logistics — 97.2% operating ratio during the first half of 2024. The Adjusted Operating Ratio1 was 96.3% with a gross margin of 17.3% while revenue, excluding intersegment transactions, remained relatively flat, including the U.S. Xpress logistics business. Load count decreased 5.5% due to the soft demand environment.

•Intermodal — 103.6% operating ratio during the first half of 2024, as load count declined 1.7% and revenue per load declined 12.2% year-over-year, as a result of soft demand and competitive truck capacity.

•All Other Segments — Operating loss decreased to $16.6 million during the first half of 2024 from $22.7 million during the comparable period of 2023, largely as a result of exiting the third-party insurance business.

•Liquidity and Capital — During the first half of 2024, we generated $310.7 million in operating cash flows and Free Cash Flow1 of $52.1 million, which was negatively impacted by our decision to transfer $161.1 million of third-party insurance claim liabilities to another insurance company as discussed during the previous quarter, funded by transferring the corresponding restricted cash held in trust for payment of the third-party insurance claims. The use of restricted cash in this transaction does not impact the availability of operating cash for the needs of our ongoing businesses. We paid down $39.7 million in finance lease liabilities, $91.4 million in operating lease liabilities, and $21.6 million from net repayments on our 2021 Revolver and 2023 RSA. As of June 30, 2024, we had a balance of $186.5 million in unrestricted cash and cash equivalents, $1.3 billion face value outstanding on the 2021 Term Loans and 2023 Term Loan, and $7.1 billion of stockholders' equity. We do not foresee material liquidity constraints or any issues with our ongoing ability to meet our debt covenants. See discussion under "Liquidity and Capital Resources" for additional information.

________

1Refer to "Non-GAAP Financial Measures" below.

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Key Financial Data and Operating Metrics

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP financial data:	(Dollars in thousands, except per share data)
Total revenue	$	1,846,654		$	1,552,979		$	3,669,121		$	3,189,911
Revenue, excluding truckload and LTL fuel surcharge	$	1,641,701		$	1,390,448		$	3,254,515		$	2,840,741
Net income attributable to Knight-Swift	$	20,300		$	63,326		$	17,665		$	167,610
Earnings per diluted share	$	0.13		$	0.39		$	0.11		$	1.04
Operating ratio	96.6		%	93.9		%	97.7		%	92.5		%
Non-GAAP financial data:
Adjusted Net Income Attributable to Knight-Swift 1	$	39,375		$	78,618		$	59,149		$	197,109
Adjusted EPS 1	$	0.24		$	0.49		$	0.36		$	1.22
Adjusted Operating Ratio 1	94.6		%	91.8		%	95.7		%	90.2		%
Revenue equipment statistics by segment:
Truckload
Average tractors 2	22,828			17,851			23,071			18,002
Average trailers 3	92,581			79,911			93,495			79,700
LTL
Average tractors 4	3,429			3,163			3,393			3,163
Average trailers 5	8,893			8,452			8,796			8,419
Intermodal
Average tractors	613			656			611			631
Average containers	12,580			12,842			12,581			12,835

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

2Our tractor fleet within the Truckload segment had a weighted average age of 2.7 years and 2.6 years as of June 30, 2024 and 2023, respectively.

3Our average trailers includes 8,876 and 8,377 trailers related to leasing activities recorded within our non-reportable segments for the quarters ended June 30, 2024 and 2023, respectively. Our trailer fleet within the Truckload segment had a weighted average age of 9.1 years and 10.0 years as of June 30, 2024 and 2023, respectively. Our average trailers includes 8,822 and 8,683 trailers related to leasing activities recorded within our non-reportable segments for the year-to-date periods June 30, 2024 and 2023, respectively.

4Our LTL tractor fleet had a weighted average age of 4.2 years as of both June 30, 2024 and June 30, 2023. Our LTL tractor fleet includes 612 and 604 tractors from ACT's and MME's dedicated and other businesses for the quarters ended June 30, 2024 and 2023, respectively. Our LTL tractor fleet includes 612 and 611 tractors from ACT's and MME's dedicated and other businesses for the year-to-date period June 30, 2024 and 2023, respectively.

5Our LTL trailer fleet had a weighted average age of 8.6 years and 8.4 years as of June 30, 2024 and 2023, respectively. Our LTL trailer fleet includes 829 and 778 trailers from ACT's and MME's dedicated and other businesses for the quarters ended June 30, 2024 and 2023, respectively. Our LTL trailer fleet includes 825 and 778 trailers from ACT's and MME's dedicated and other businesses for the year-to-date periods June 30, 2024 and 2023, respectively.

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Market Trends and Outlook

The national unemployment rate was 4.1%1 as of June 30, 2024, as compared to 3.6% as of June 30, 2023. The US gross domestic product, which is the broadest measure of goods and services produced across the economy, increased by 2.8%2 on a quarter-over-quarter basis, per preliminary third-party forecasts. The increase, compared to the first quarter increase of 1.4%, primarily reflected increases in consumer spending, private inventory investment, and nonresidential fixed investments. These were partially offset by increased imports. The most recent US employment cost index indicates a quarter-over-quarter increase of 4.2%1 and a sequential increase of 1.2%1.

Our Company outlook for the third and fourth quarters of 2024 includes the following:

Truckload

•Truckload Segment revenue up slightly sequentially in the third quarter and again into the fourth quarter with sequential improvements in operating margins each quarter resulting in adjusted operating ratios steadily improving into the low to mid-90’s,

•Truckload tractor count down modestly sequentially into the third quarter before stabilizing for the fourth quarter,

•Truckload miles per tractor increasing low-single digit percent year-over-year in the third quarter and fourth quarters as the prior year comparisons begin to include U.S. Xpress,

LTL

•LTL low double-digit percent growth in revenue, excluding fuel surcharge, year-over-year as shipment count in the third and fourth quarters improves mid single-digit percent year-over-year and revenue per hundredweight, excluding fuel surcharge, improves high single-digit percent year-over-year,

•Adjusted operating ratios in the mid-to-high 80's as a result of normal seasonal progression and as we continue to expand the network,

Logistics

•Logistics load count sequentially growing mid single-digit percent in the third quarter and stabilizing in the fourth quarter, with adjusted operating ratios in the mid-90’s,

Intermodal

•Intermodal load count sequentially growing high single-digit percent in the third quarter and stabilizing in the fourth quarter with an operating ratio modestly below breakeven by the fourth quarter,

All Other

•All Other segments operating income, before including the $11.7 million quarterly intangible asset amortization, of approximately $10-15 million for the third quarter and modestly negative for the fourth quarter as some of these services experience their typical seasonal slowdown,

Additional

•Equipment gains to be in the range of $5 million to $10 million per quarter,

•Net interest expense up modestly sequentially in the third quarter and fourth quarter,

•Net cash capital expenditures for the full year 2024 expected range of $600 million - $650 million,

•Expected tax rate of approximately 29% to 30% for the year.

In addition to the above, we expect the Truckload segment will continue to pursue opportunities, as we implement a decentralized operating model within our new U.S. Xpress locations, and the Logistics segment will continue to provide value to our customers through our power-only and traditional brokerage service offerings. Our ACT and MME teams are working together to further build out a super-regional network that we expect will provide additional yield and revenue opportunities. The Intermodal segment continues to build out its network that aligns with our new rail partners as we pursue a more diversified portfolio of customers. Our All Other Segments are further expanding to complement our other service offerings.

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We anticipate that depreciation and amortization expense will increase, as a percentage of revenue, excluding truckload and LTL fuel surcharge, as we intend to purchase, rather than enter into operating leases, for a majority of our revenue equipment, terminal improvements, or terminal expansions during 2024. With significant tightening in the insurance markets, we may also experience changes in premiums, retention limits, and excess coverage limits in the remainder of 2024. While fuel expense is generally offset by fuel surcharge revenue, our fuel expense, net of truckload and LTL fuel surcharge revenue, may increase in the future, particularly during periods of sharply rising fuel prices. In periods of declining prices the opposite is true. Overall, we remain committed to long-term profitability as we continue to leverage opportunities across the Knight-Swift brands, and efficiently deploy our assets, while maintaining a relentless focus on cost control. This includes seeking acquisition opportunities to improve earnings, gain customers, and reach more professional drivers, as illustrated by the acquisition of U.S. Xpress and our intention to expand the geographic footprint of our LTL network.

________

1Source: bls.gov

2Source: bea.gov

Results of Operations — Summary

Note: The reported results do not include U.S. Xpress's operating results prior to its acquisition by the Company on July 1, 2023, in accordance with the accounting treatment applicable to the transaction. Accordingly, comparisons between the Company's quarter and year-to-date June 30, 2024 results and prior periods may not be meaningful.

Operating Results: Second Quarter 2024 Compared to Second Quarter 2023

The $43.0 million decrease in net income attributable to Knight-Swift to $20.3 million during the second quarter of 2024 from $63.3 million during the same period last year includes the following:

•Contributor — $44.4 million decrease in operating income within our Truckload segment primarily due to the $12.5 million charge for the settlement of an auto liability claim from 2020, 5.5% decline in revenue per loaded mile, excluding fuel surcharge and intersegment transactions, and the 1.8% increase in cost per mile.

•Contributor — $4.8 million decrease in operating income within our Logistics segment due to increases in purchased transportation costs, while load count remained relatively flat.

•Contributor — $16.1 million increase in consolidated interest expense primarily driven by higher debt balances related to the U.S. Xpress Acquisition and higher interest rates.

•Offset — $4.9 million decrease in operating loss within our Intermodal segment, driven by a 10.6% decrease in operating expenses, partially offset by a 6.5% decrease in total revenue.

•Offset — $2.8 million increase in operating income within our LTL segment primarily due to an 8.4% increase in shipments per day and a 13.4% increase in revenue per hundredweight excluding fuel surcharge.

•Offset — $10.9 million increase in operating income within the All Other Segments, largely as a result of exiting the third-party insurance business at the end of the first quarter of 2024.

•Offset — $10.2 million decrease in consolidated income tax expense, primarily due to a reduction of pre-tax income. Our effective tax rate for the second quarter of 2024 was 37.2%, compared to 25.9% for the second quarter of 2023.

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Operating Results: First Half 2024 Compared to First Half 2023

The $149.9 million decrease in net income attributable to Knight-Swift to $17.7 million during the first half of 2024 from $167.6 million during the same period last year includes the following:

•Contributor — $137.2 million decrease in operating income within our Truckload segment primarily due to the 7.7% decline in revenue per loaded mile, excluding fuel surcharge and intersegment transactions, and the 2.7% increase in cost per mile.

•Contributor — $15.2 million decrease in operating income within our Logistics segment due to a 5.5% decline in load count.

•Contributor — $5.1 million increase in operating loss within our Intermodal segment, driven by a 12.2% decrease in revenue per load.

•Contributor — $3.5 million decrease in operating income within our LTL segment partly due to severe winter weather disruptions during the first quarter.

•Contributor — $34.3 million increase in consolidated interest expense primarily driven by higher debt balances related to the U.S. Xpress Acquisition and higher interest rates.

•Offset — $6.1 million decrease in operating loss within the All Other Segments, largely as a result of exiting the third-party insurance business at the end of the first quarter.

•Offset — $46.6 million decrease in consolidated income tax expense, primarily due to a reduction of pre-tax income. This resulted in an effective tax rate of 32.4% for the first half of 2024, and 24.7% for the first half of 2023.

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Results of Operations — Segment Review

The Company has four reportable segments: Truckload, LTL, Logistics, and Intermodal, as well as certain other operating segments included within our All Other Segments.

Consolidating Tables for Total Revenue and Operating Income (Loss)

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Revenue:	(In thousands)
Truckload	$	1,264,237	$	953,659	$	2,527,252	$	1,965,904
LTL	306,478		267,105		588,600		522,409
Logistics	131,700		119,943		258,429		258,226
Intermodal	97,528		104,327		185,513		214,899
Subtotal	$	1,799,943	$	1,445,034	$	3,559,794	$	2,961,438
All Other Segments	68,279		130,110		153,358		272,096
Intersegment eliminations	(21,568)		(22,165)		(44,031)		(43,623)
Total revenue	$	1,846,654	$	1,552,979	$	3,669,121	$	3,189,911

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Operating income (loss):	(In thousands)
Truckload	$	23,483	$	67,911	$	46,630	$	183,810
LTL	33,049		30,238		53,336		56,820
Logistics	4,759		9,566		7,232		22,386
Intermodal	(1,717)		(6,632)		(6,625)		(1,530)
Subtotal	$	59,574	$	101,083	$	100,573	$	261,486
All Other Segments	3,886		(7,053)		(16,558)		(22,669)
Operating income	$	63,460	$	94,030	$	84,015	$	238,817

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Revenue

•Our truckload services include irregular route and dedicated, refrigerated, expedited, flatbed, and cross-border transportation of various products, goods, and materials for our diverse customer base with approximately 16,400 irregular route and 6,500 dedicated tractors.

•Our LTL business, which was initially established in 2021 through the ACT acquisition and later the MME acquisition, provides our customers with regional LTL transportation service through our growing network of over 130 facilities and a door count of approximately 5,100. Our LTL segment operates approximately 3,400 tractors and approximately 8,900 trailers and also provides national coverage to our customers by utilizing partner carriers for areas outside of our direct network.

•Our Logistics and Intermodal segments provide a multitude of shipping solutions, including additional sources of truckload capacity and alternative transportation modes, by utilizing our vast network of third-party capacity providers and rail providers, as well as certain logistics and freight management services. We offer power-only services through our Logistics segment leveraging our fleet of nearly 93,000 trailers.

•Our All Other Segments include support services provided to our customers and third-party carriers including equipment maintenance, equipment leasing, warehousing, trailer parts manufacturing, and warranty services, as well as insurance prior to the first quarter of 2024. Our All Other Segments also include certain corporate expenses (such as legal settlements and accruals, certain impairments, and amortization of intangibles related to the 2017 Merger and various acquisitions).

•In addition to the revenues earned from our customers for the trucking and non-trucking services discussed above, we also earn fuel surcharge revenue from our customers through our fuel surcharge programs, which serve to recover a majority of our fuel costs. This generally applies only to loaded miles for our Truckload and LTL segments and typically does not offset non-paid empty miles, idle time, and out-of-route miles driven. Fuel surcharge programs involve a computation based on the change in national or regional fuel prices. These programs may update as often as weekly, but typically require a specified minimum change in fuel cost to prompt a change in fuel surcharge revenue. Therefore, many of these programs have a time lag between when fuel costs change and when the change is reflected in fuel surcharge revenue for our Truckload and LTL segments.

Expenses

Our most significant expenses typically vary with miles traveled and include fuel, driving associate-related expenses (such as wages and benefits), and services purchased from third-party service providers (including other trucking companies, railroad and drayage providers, and independent contractors). Maintenance and tire expenses, as well as the cost of insurance and claims generally vary with the miles we travel, but also have a controllable component based on safety performance, fleet age, operating efficiency, and other factors. Our primary fixed costs are depreciation and lease expense for revenue equipment and terminals, non-driver employee compensation, amortization of intangible assets, and interest expenses.

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Operating Statistics

We measure our consolidated and segment results through the operating statistics listed in the table below. Our chief operating decision makers monitor the GAAP results of our reportable segments, supplemented by certain non-GAAP information. Refer to "Non-GAAP Financial Measures" for more details. Additionally, we use a number of primary indicators to monitor our revenue and expense performance and efficiency.

Operating Statistic	Relevant Segment(s)	Description
Average Revenue per Tractor	Truckload	Measures productivity and represents revenue (excluding fuel surcharge and intersegment transactions) divided by average tractor count
Total Miles per Tractor	Truckload	Total miles (including loaded and empty miles) a tractor travels on average
Average Length of Haul	Truckload, LTL	For our Truckload segment this is calculated as average miles traveled with loaded trailer cargo per order. For our LTL segment this is calculated as average miles traveled from the origin service center to the destination service center.
Non-paid Empty Miles Percentage	Truckload	Percentage of miles without trailer cargo
Shipments per Day	LTL	Average number of shipments completed each business day
Weight per Shipment	LTL	Total weight (in pounds) divided by total shipments
Revenue per shipment	LTL	Total revenue divided by total shipments
Revenue xFSC per shipment	LTL	Total revenue, excluding fuel surcharge, divided by total shipments
Revenue per hundredweight	LTL	Measures yield and is calculated as total revenue divided by total weight (in pounds) times 100
Revenue xFSC per hundredweight	LTL	Total revenue, excluding fuel surcharge, divided by total weight (in pounds) times 100
Average Tractors	Truckload, LTL, Intermodal	Average tractors in operation during the period including company tractors and tractors provided by independent contractors
Average Trailers	Truckload, LTL	Average trailers in operation during the period
Average Revenue per Load	Logistics, Intermodal	Total revenue (excluding intersegment transactions) divided by load count
Gross Margin Percentage	Logistics	Logistics gross margin (revenue, excluding intersegment transactions, less purchased transportation expense, excluding intersegment transactions) as a percentage of logistics revenue, excluding intersegment transactions
Average Containers	Intermodal	Average containers in operation during the period
GAAP Operating Ratio	Truckload, LTL, Logistics, Intermodal	Measures operating efficiency and is widely used in our industry as an assessment of management's effectiveness in controlling all categories of operating expenses. Calculated as operating expenses as a percentage of total revenue, or the inverse of operating margin.
Non-GAAP Adjusted Operating Ratio	Truckload, LTL, Logistics, Intermodal	Measures operating efficiency and is widely used in our industry as an assessment of management's effectiveness in controlling all categories of operating expenses. Consolidated and segment Adjusted Operating Ratios are reconciled to their corresponding GAAP operating ratios under "Non-GAAP Financial Measures," below.

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Segment Review

Truckload Segment

We generate revenue in the Truckload segment primarily through irregular route, dedicated, refrigerated, expedited, flatbed, and cross-border service operations across our brands. We operated approximately 16,400 irregular route tractors and approximately 6,500 dedicated route tractors in use during the quarter ended June 30, 2024. Generally, we are paid a predetermined rate per mile or per load for our truckload services. Additional revenues are generated by charging for tractor and trailer detention, loading and unloading activities, dedicated services, and other specialized services, as well as through the collection of fuel surcharge revenue to mitigate the impact of increases in the cost of fuel. The main factors that affect the revenue generated by our Truckload segment are rate per mile from our customers, the percentage of miles for which we are compensated, and the number of loaded miles we generate with our equipment.

The most significant expenses in the Truckload segment are primarily variable and include fuel and fuel taxes, driving associate-related expenses (such as wages, benefits, training, and recruitment), and costs associated with independent contractors primarily included in "Purchased transportation" in the condensed consolidated statements of comprehensive income. Maintenance expense (which includes costs for replacement tires for our revenue equipment) and insurance and claims expenses have both fixed and variable components. These expenses generally vary with the miles we travel, but also have a controllable component based on safety, fleet age, efficiency, and other factors. The main fixed costs in the Truckload segment are depreciation and rent expense from tractors, trailers, and terminals, as well as compensating our non-driver employees.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands, except per tractor data)												Increase (Decrease)
Total revenue	$	1,264,237		$	953,659		$	2,527,252		$	1,965,904		32.6	%	28.6	%
Revenue, excluding fuel surcharge and intersegment transactions	$	1,102,790		$	829,373		$	2,196,841		$	1,695,353		33.0	%	29.6	%
GAAP: Operating income	$	23,483		$	67,911		$	46,630		$	183,810		(65.4	%)	(74.6	%)
Non-GAAP: Adjusted Operating Income 1	$	31,156		$	68,210		$	60,270		$	184,452		(54.3	%)	(67.3	%)
Average revenue per tractor 2	$	48,309		$	46,461		$	95,221		$	94,176		4.0	%	1.1	%
GAAP: Operating ratio 2	98.1		%	92.9		%	98.2		%	90.7		%	520	bps	750	bps
Non-GAAP: Adjusted Operating Ratio 1 2	97.2		%	91.8		%	97.3		%	89.1		%	540	bps	820	bps
Non-paid empty miles percentage 2	14.0		%	15.2		%	14.1		%	15.1		%	(120	bps)	(100	bps)
Average length of haul (miles) 2	385			385			390			388			—	%	0.5	%
Total miles per tractor 2	20,518			18,904			40,405			37,304			8.5	%	8.3	%
Average tractors 2 3	22,828			17,851			23,071			18,002			27.9	%	28.2	%
Average trailers 2 4	92,581			79,911			93,495			79,700			15.9	%	17.3	%

1    Refer to "Non-GAAP Financial Measures" below.

2    Defined under "Operating Statistics," above.

3    Includes 20,706 and 15,995 average company-owned tractors for the second quarter of 2024 and 2023, respectively. Includes 20,913 and 16,128 average company-owned tractors for the year-to date periods June 30, 2024 and 2023, respectively.

4    Our average trailers includes 8,876 and 8,377 trailers related to leasing activities recorded within our All Other Segments for the quarters ended June 30, 2024 and 2023, respectively. Our average trailers includes 8,822 and 8,683 trailers related to leasing activities recorded within our All Other Segments for the year-to-date periods June 30, 2024 and 2023, respectively.

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Comparison Between the Quarters Ended June 30, 2024 and 2023 — Truckload segment revenue, excluding fuel surcharge and intersegment transactions, was $1.1 billion, an increase of 33.0% year-over-year, reflecting a 5.7% decline in the legacy truckload business prior to the inclusion of U.S. Xpress. This segment continues to experience a difficult environment, operating with a 97.2% Adjusted Operating Ratio in the second quarter, which was negatively impacted by 120 basis points from a settlement of an auto liability claim from 2020. The Adjusted Operating Ratio was essentially flat with the first quarter as the seasonal demand patterns that improved late in the second quarter were largely offset by the claim settlement. Further, the inclusion of U.S. Xpress negatively impacted the Adjusted Operating Ratio by 130 basis points as this brand maintained breakeven results for the quarter. The year-over-year decline in revenue per loaded mile, excluding fuel surcharge and intersegment transactions, narrowed to 5.5% in the current quarter as rates held stable with the first quarter. Cost per mile increased 1.8% year-over-year and was also flat with the first quarter, including the impact of the claim settlement in the current quarter. We remain disciplined on pricing and are unwilling to commit our capacity on what we view as unsustainable contractual rates.

Truckload segment miles per tractor increased 8.5% year-over-year, largely driven by our earlier decision to reduce the number of unseated tractors in the legacy businesses to reduce cost. We have been intentionally trimming our capital equipment over the past few quarters to improve our cost structure through the trough of the freight cycle but without cutting so far as to sacrifice our ability to flex when the market improves. Excluding U.S. Xpress, revenue, excluding fuel surcharge, per tractor increased 3.5% year-over-year, which was the first year-over-year increase in six quarters as we improve miles per tractor while the decline in pricing decelerates. We are diligently focused on improving our cost structure and equipment utilization to mitigate pressure on margins through the bottom of this prolonged freight cycle with the intention of maximizing the benefits of operating leverage as the cycle turns.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Truckload segment revenue, excluding fuel surcharge and intersegment transactions, was $2.2 billion, an increase of 29.6% year-over-year, reflecting an 8.6% decline in the legacy truckload business prior to the inclusion of U.S. Xpress. Adjusted Operating Ratio was 97.3%, largely driven by a 7.7% decrease in revenue per loaded mile, excluding fuel surcharge and intersegment transactions and a 2.7% increase in cost per mile, net of fuel surcharge recovery.

LTL Segment

Dothan, Alabama-based ACT and Bismarck, North Dakota-based MME, both acquired in 2021, comprise our LTL segment. We provide regional direct service and serve our customers' national transportation needs by utilizing key partner carriers for coverage areas outside of our network. We primarily generate revenue by transporting freight for our customers through our core LTL services.

Our revenues are impacted by shipment volume and tonnage levels that flow through our network. Additional revenues are generated through fuel surcharges and accessorial services provided during transit from shipment origin to destination. We focus on the following multiple revenue generation factors when reviewing revenue yield: revenue per hundredweight, revenue per shipment, weight per shipment, and length of haul. Fluctuations within each of these metrics are analyzed when determining the revenue quality of our customers' shipment density.

Our most significant expense is related to direct costs associated with the transportation of our freight moves including direct salary, wage and benefit costs, fuel expense, and depreciation expense associated with revenue equipment costs. Other expenses associated with revenue generation that can fluctuate and impact operating results are insurance and claims expenses, as well as maintenance costs of our revenue equipment. These expenses can be influenced by multiple factors including our safety performance, equipment age, and other factors. A key component of lowering our operating costs is labor efficiency within our network. We continue to focus on technological advances to improve the customer experience and reduce our operating costs.

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	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands, except per tractor data)												Increase (Decrease)
Total revenue	$	306,478		$	267,105		$	588,600		$	522,409		14.7	%	12.7	%
Revenue, excluding fuel surcharge	$	263,095		$	228,578		$	504,085		$	442,507		15.1	%	13.9	%
GAAP: Operating income	$	33,049		$	30,238		$	53,336		$	56,820		9.3	%	(6.1	%)
Non-GAAP: Adjusted Operating Income 1	$	36,969		$	34,158		$	61,176		$	64,660		8.2	%	(5.4	%)
GAAP: Operating ratio 2	89.2		%	88.7		%	90.9		%	89.1		%	50	bps	180	bps
Non-GAAP: Adjusted Operating Ratio 1 2	85.9		%	85.1		%	87.9		%	85.4		%	80	bps	250	bps
LTL shipments per day 2	20,482			18,898			19,641			18,308			8.4	%	7.3	%
LTL weight per shipment 2	1,008			1,058			1,008			1,059			(4.7	%)	(4.8	%)
LTL average length of haul (miles) 2	585			545			579			540			7.3	%	7.2	%
LTL revenue per shipment 2	$	202.46		$	187.92		$	201.20		$	188.59		7.7	%	6.7	%
LTL revenue xFSC per shipment 2	$	173.50		$	160.66		$	172.02		$	159.60		8.0	%	7.8	%
LTL revenue per hundredweight 2	$	20.09		$	17.77		$	19.97		$	17.80		13.1	%	12.2	%
LTL revenue xFSC per hundredweight 2	$	17.22		$	15.19		$	17.07		$	15.07		13.4	%	13.3	%
LTL average tractors 2 3	3,429			3,163			3,393			3,163			8.4	%	7.3	%
LTL average trailers 2 4	8,893			8,452			8,796			8,419			5.2	%	4.5	%

1Refer to "Non-GAAP Financial Measures" below.

2Defined under "Operating Statistics," above.

3Our LTL tractor fleet includes 612 and 604 tractors from ACT's and MME's dedicated and other businesses for the second quarter of 2024 and 2023, respectively. Our LTL tractor fleet includes 612 and 611 tractors from ACT's and MME's dedicated and other businesses for the year-to-date periods June 30, 2024 and 2023, respectively.

4Our LTL trailer fleet includes 829 and 778 trailers from ACT's and MME's dedicated and other businesses for the second quarter of 2024 and 2023, respectively. Our LTL trailer fleet includes 825 and 778 trailers from ACT's and MME's dedicated and other businesses for the year-to-date periods June 30, 2024 and 2023, respectively.

Comparison Between the Quarters Ended June 30, 2024 and 2023 — Our LTL segment produced an 85.9% Adjusted Operating Ratio during the second quarter of 2024, as revenue, excluding fuel surcharge, grew 15.1% and Adjusted Operating Income increased 8.2% year-over-year. Average shipments per day increased 8.4% year-over-year for the quarter. Revenue per hundredweight, excluding fuel surcharge, increased 13.4%, while revenue per shipment, excluding fuel surcharge, increased by 8.0%, reflecting a 4.7% decrease in weight per shipment.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The LTL segment produced an 87.9% Adjusted Operating Ratio during the first half of 2024, as revenue, excluding fuel surcharge, increased 13.9%. Adjusted Operating Income decreased 5.4% due to severe winter weather experienced during the first quarter of 2024. In addition, maintenance and labor costs were higher than normal given initial set-up costs as we work to scale up our new facilities. Average shipments per day increased 7.3%. Revenue per hundredweight, excluding fuel surcharge, increased 13.3%, while revenue per shipment, excluding fuel surcharge, increased 7.8%, reflecting a 4.8% decrease in weight per shipment.

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During the quarter, we opened 11 additional terminals in new markets and now expect to open another 20 terminals by the end of 2024. Overall, the 38 locations planned to open in 2024 will represent an addition of over 1,000 doors this year, for a 22.1% increase to our door count from the beginning of the year, which we believe will meaningfully impact the reach of our service offering and increase the density of our network. We expect these investments will bring opportunities to service additional freight and customers. While these new locations initially bring set up costs and operational inefficiencies, we expect that as the locations continue to scale, and particularly as they participate in the next bid cycle, they will help drive growth and margin expansion in the business. We remain encouraged by the strong performance within our LTL segment, and we continue to look for both organic and inorganic opportunities to geographically expand our footprint within the LTL market.

Logistics Segment

The Logistics segment is less asset-intensive than the Truckload and LTL segments and is dependent upon capable non-driver employees, modern and effective information technology, and third-party capacity providers. Logistics revenue is generated by its brokerage operations. We generate additional revenue by offering specialized logistics solutions (including, but not limited to, trailing equipment, origin management, surge volume, disaster relief, special projects, and other logistics needs). Logistics revenue is mainly affected by the rates we obtain from customers, the freight volumes we ship through third-party capacity providers, and our ability to secure third-party capacity providers to transport customer freight.

The most significant expense in the Logistics segment is purchased transportation that we pay to third-party capacity providers, which is primarily a variable cost and is included in "Purchased transportation" in the condensed consolidated statements of comprehensive income. Variability in this expense depends on truckload capacity, availability of third-party capacity providers, rates charged to customers, current freight demand, and customer shipping needs. Fixed Logistics operating expenses primarily include non-driver employee compensation and benefits recorded in "Salaries, wages, and benefits" and depreciation and amortization expense recorded in "Depreciation and amortization of property and equipment" in the condensed consolidated statements of comprehensive income.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands, except per load data)												Increase (Decrease)
Total revenue	$	131,700		$	119,943		$	258,429		$	258,226		9.8	%	0.1	%
Revenue, excluding intersegment transactions	$	131,700		$	117,782		$	258,429		$	254,559		11.8	%	1.5	%
GAAP: Operating income	$	4,759		$	9,566		$	7,232		$	22,386		(50.3	%)	(67.7	%)
Non-GAAP: Adjusted Operating Income 1 2	$	5,923		$	9,900		$	9,560		$	23,054		(40.2	%)	(58.5	%)
Revenue per load - Brokerage only 2	$	1,831		$	1,652		$	1,791		$	1,685		10.8	%	6.3	%
Gross margin percentage - Brokerage only 2	17.9		%	19.4		%	17.3		%	19.6		%	(150	bps)	(230	bps)
GAAP: Operating ratio 2	96.4		%	92.0		%	97.2		%	91.3		%	440	bps	590	bps
Non-GAAP: Adjusted Operating Ratio 1 2	95.5		%	91.6		%	96.3		%	90.9		%	390	bps	540	bps

1    Refer to "Non-GAAP Financial Measures" below.

2    Defined under "Operating Statistics," above.

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Comparison Between the Quarters Ended June 30, 2024 and 2023 — The Logistics segment Adjusted Operating Ratio was 95.5%, with a gross margin of 17.9% in the second quarter of 2024, down from 19.4% in the second quarter of 2023. The second quarter was challenged by the persistently soft demand environment as well as increases in purchased transportation costs later in the quarter that pressured gross margins. Logistics load count for the quarter was flat year-over-year, reflecting the inclusion of U.S. Xpress logistics volumes in the current period. We remain disciplined on price, which allowed our Logistics business to maintain profitability but is a headwind to volumes. After first turning modestly positive last quarter, revenue per load increased by 10.8% year-over-year in the second quarter, representing a 4.6% increase from the prior quarter. The year-over-year increase in revenue per load is largely driven by the inclusion of U.S. Xpress logistics in the current quarter, as it has a different business mix. We continue to leverage our power-only capabilities to complement our asset business, build a broader and more diversified freight portfolio, and to enhance the returns on our capital assets.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The Logistics segment Adjusted Operating Ratio was 96.3%, with a gross margin of 17.3% in the first half of 2024, down from 19.6% in the first half of 2023. The Logistics segment was challenged by the persistently soft demand environment as well as increases in purchased transportation costs that pressured gross margins. Logistics load count decreased 5.5%, reflecting the inclusion of U.S. Xpress logistics volumes. Revenue per load increased by 6.3% year-over-year, largely driven by the inclusion of U.S. Xpress logistics in the current period, as it has a different business mix.

Intermodal Segment

The Intermodal segment complements our regional operating model, allows us to better serve customers in longer haul lanes, and reduces our investment in fixed assets. Through the Intermodal segment, we generate revenue by moving freight over the rail in our containers and other trailing equipment, combined with revenue for drayage to transport loads between railheads and customer locations. The most significant expense in the Intermodal segment is the cost of purchased transportation that we pay to third-party capacity providers (including rail providers), which is primarily variable and included in "Purchased transportation" in the condensed consolidated statements of comprehensive income. While rail pricing is determined on an annual basis, purchased transportation varies as it relates to rail capacity, freight demand, and customer shipping needs. The main fixed costs in the Intermodal segment are depreciation of our company tractors related to drayage, containers, and chassis, as well as non-driver employee compensation and benefits.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands, except per load data)												Increase (Decrease)
Total revenue	$	97,528		$	104,327		$	185,513		$	214,899		(6.5	%)	(13.7	%)
GAAP: Operating loss	$	(1,717)		$	(6,632)		$	(6,625)		$	(1,530)		74.1	%	(333.0	%)
Average revenue per load 1	$	2,615		$	2,749		$	2,615		$	2,979		(4.9	%)	(12.2	%)
GAAP: Operating ratio 1	101.8		%	106.4		%	103.6		%	100.7		%	(460	bps)	290	bps
Load count	37,290			37,945			70,937			72,138			(1.7	%)	(1.7	%)
Average tractors 1 2	613			656			611			631			(6.6	%)	(3.2	%)
Average containers 1	12,580			12,842			12,581			12,835			(2.0	%)	(2.0	%)

1    Defined under "Operating Statistics," above.

2    Includes 555 and 595 company-owned tractors for the second quarter of 2024 and 2023, respectively.

Includes 554 and 568 company-owned tractors for the year-to-date periods ended June 30, 2024 and 2023, respectively.

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Comparison Between the Quarters Ended June 30, 2024 and 2023 — The Intermodal segment improved its operating ratio to 101.8%, while the year-over-year decline in total revenue slowed to 6.5%, resulting in $97.5 million in revenue for the quarter. The drop in revenue was driven by a 4.9% decline in revenue per load, and a 1.7% decline in load count year-over-year as a result of soft demand and competitive truck capacity. We grew load count sequentially by 10.8% while maintaining stable revenue per load as compared to the first quarter, which helped improve the operating ratio by 380 basis points over the first quarter. We remain focused on growing our load count with disciplined pricing across a diverse group of customers and expect load count to continue to grow sequentially into the back half of the year.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The Intermodal segment operated with a 103.6% operating ratio, while total revenue decreased 13.7% year-over-year to $185.5 million. The drop in revenue was driven by a 12.2% decline in revenue per load, and a 1.7% decline in load count year-over-year as a result of soft demand and competitive truck capacity.

All Other Segments

Our All Other Segments include support services provided to our customers and third-party carriers including equipment maintenance, equipment leasing, warehousing, trailer parts manufacturing, and warranty services, as well as insurance prior to the first quarter of 2024. Our All Other Segments also include certain corporate expenses (such as legal settlements and accruals, certain impairments, and $11.7 million in quarterly amortization of intangibles related to the 2017 Merger and various acquisitions).

	Quarter Ended June 30,				Year-to-Date June 30,				QTD 2024 vs.		YTD 2024 vs.
	2024		2023		2024		2023		QTD 2023		YTD 2023
	(Dollars in thousands)								Increase (Decrease)
Total revenue	$	68,279	$	130,110	$	153,358	$	272,096	(47.5	%)	(43.6	%)
Operating income (loss)	$	3,886	$	(7,053)	$	(16,558)	$	(22,669)	155.1	%	27.0	%

Comparison Between the Quarters Ended June 30, 2024 and 2023 — Revenue declined 47.5% year-over-year, largely as a result of exiting our third-party insurance business. Operating income of $3.9 million within our All Other Segments was primarily driven by the warehousing and equipment leasing businesses.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Revenue declined 43.6% year-over-year, largely as a result of winding down our third-party insurance program, ultimately ceasing operations at the end of the first quarter. The $16.6 million operating loss within our All Other Segments is primarily driven by the $18.6 million operating loss in our third-party insurance business.

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Results of Operations — Consolidated Operating and Other Expenses

Consolidated Operating Expenses

The following tables present certain operating expenses from our condensed consolidated statements of comprehensive income, including each operating expense as a percentage of total revenue and as a percentage of revenue, excluding truckload and LTL fuel surcharge. Truckload and LTL fuel surcharge revenue can be volatile and is primarily dependent upon the cost of fuel, rather than operating expenses unrelated to fuel. Therefore, we believe that revenue, excluding truckload and LTL fuel surcharge is a better measure for analyzing many of our expenses and operating metrics.

Note: The reported results do not include U.S. Xpress's operating results prior to its acquisition by the Company on July 1, 2023, in accordance with the accounting treatment applicable to the transaction. Accordingly, comparisons between the Company's quarter and year-to-date June 30, 2024 results and prior periods may not be meaningful.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Salaries, wages, and benefits	$	691,878		$	533,237		$	1,384,785		$	1,069,979		29.8	%	29.4	%
% of total revenue	37.5		%	34.3		%	37.7		%	33.5		%	320	bps	420	bps
% of revenue, excluding truckload and LTL fuel surcharge	42.1		%	38.4		%	42.5		%	37.7		%	370	bps	480	bps

Salaries, wages, and benefits expense is primarily affected by the total number of miles driven by and rates we pay to our company driving associates, and employee benefits including healthcare, workers' compensation, and other benefits. To a lesser extent, non-driver employee headcount, compensation, and benefits affect this expense. Driving associate wages represent the largest component of salaries, wages, and benefits expense.

Several ongoing market factors have reduced the pool of available driving associates, contributing to a challenging driver sourcing market, which we believe will continue. Having a sufficient number of qualified driving associates is a significant headwind, although we continue to seek ways to attract and retain qualified driving associates, including heavily investing in our recruiting efforts, our driving academies, technology, our equipment, and our terminals that improve the experience of driving associates. We expect labor costs (related to both driving associates and non-driver employees) to remain inflationary, which we expect will result in additional pay increases in the future, thereby increasing our salaries, wages, and benefits expense.

Comparison Between the Quarters Ended June 30, 2024 and 2023 — The $158.6 million increase in consolidated salaries, wages, and benefits for the second quarter of 2024, as compared to the second quarter of 2023, includes $149.0 million from the results of U.S. Xpress.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $314.8 million increase in consolidated salaries, wages, and benefits for the first half of 2024, as compared to the first half of 2023, includes $301.6 million from the results of U.S. Xpress.

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	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Fuel	$	222,573		$	168,300		$	457,162		$	356,059		32.2	%	28.4	%
% of total revenue	12.1		%	10.8		%	12.5		%	11.2		%	130	bps	130	bps
% of revenue, excluding truckload and LTL fuel surcharge	13.6		%	12.1		%	14.0		%	12.5		%	150	bps	150	bps

Fuel expense consists primarily of diesel fuel expense for our company-owned tractors. The primary factors affecting our fuel expense are the cost of diesel fuel, the fuel economy of our equipment, and the miles driven by company driving associates.

Our fuel surcharge programs help to offset increases in fuel prices, but generally apply only to loaded miles for our Truckload and LTL segments and typically do not offset non-paid empty miles, idle time, or out-of-route miles driven. Typical fuel surcharge programs involve a computation based on the change in national or regional fuel prices. These programs may update as often as weekly, but typically require a specified minimum change in fuel cost to prompt a change in fuel surcharge revenue for our Truckload and LTL segments. Therefore, many of these programs have a time lag between when fuel costs change and when the change is reflected in fuel surcharge revenue. Due to this time lag, our fuel expense, net of fuel surcharge, negatively impacts our operating income during periods of sharply rising fuel costs and positively impacts our operating income during periods of falling fuel costs. We continue to utilize our fuel efficiency initiatives such as trailer blades, idle-control, management of tractor speeds, fleet updates for more fuel-efficient engines, management of fuel procurement, and driving associate training programs that we believe contribute to controlling our fuel expense.

Comparison Between Quarters Ended June 30, 2024 and 2023 — The $54.3 million increase in consolidated fuel expense for the second quarter of 2024 includes $55.1 million from the results of U.S. Xpress. The increase was partially offset by the decrease in the average weekly DOE fuel prices for the second quarter of 2024, as compared to the second quarter of 2023. Average weekly DOE fuel prices were $3.86 per gallon for the second quarter of 2024 and $3.94 per gallon for the second quarter of 2023.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $101.1 million increase in consolidated fuel expense for the first half of 2024 includes $116.3 million from the results of U.S. Xpress. The increase was partially offset by the decrease in the average weekly DOE fuel prices for the first half of 2024, as compared to the first half of 2023. Average weekly DOE fuel prices were $3.91 per gallon for the first half of 2024 and $4.16 per gallon for the first half of 2023.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Operations and maintenance	$	138,251		$	101,380		$	272,884		$	200,691		36.4	%	36.0	%
% of total revenue	7.5		%	6.5		%	7.4		%	6.3		%	100	bps	110	bps
% of revenue, excluding truckload and LTL fuel surcharge	8.4		%	7.3		%	8.4		%	7.1		%	110	bps	130	bps

Operations and maintenance expense consists of direct operating expenses, such as driving associate hiring and recruiting expenses, equipment maintenance, and tire expense. Operations and maintenance expenses are typically affected by the age of our company-owned fleet of tractors and trailers and the miles driven. We expect the driver market to remain competitive throughout 2024, which could increase future driving associate development and recruiting costs and negatively affect our operations and maintenance expense. We expect to prudently decrease our idle tractor and trailer capacity, in the coming quarters, to reduce operations and maintenance expense while remaining well positioned for potential market inflection.

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Comparison Between Quarters Ended June 30, 2024 and 2023 — Operations and maintenance expense increased $36.9 million for the second quarter of 2024, as compared to the same period last year. The increase for the second quarter of 2024 includes $36.6 million from the results of U.S. Xpress.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Operations and maintenance expense increased $72.2 million for the first half of 2024, as compared to the same period last year. The increase for the first half of 2024 includes $71.6 million from the results of U.S. Xpress.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Insurance and claims	$	105,438		$	137,306		$	227,884		$	275,345		(23.2	%)	(17.2	%)
% of total revenue	5.7		%	8.8		%	6.2		%	8.6		%	(310	bps)	(240	bps)
% of revenue, excluding truckload and LTL fuel surcharge	6.4		%	9.9		%	7.0		%	9.7		%	(350	bps)	(270	bps)

Insurance and claims expense consists of premiums for liability, physical damage, and cargo, and will vary based upon the frequency and severity of claims, our level of self-insurance, and premium expense. In recent years, insurance carriers have raised premiums for many businesses, including transportation companies, and as a result, our insurance and claims expense could increase in the future, or we could raise our self-insured retention limits or reduce excess coverage limits when our policies are renewed or replaced. Insurance and claims expense also varies based on the number of miles driven by company driving associates and independent contractors, the frequency and severity of accidents, trends in development factors used in actuarial accruals, and developments in large, prior-year claims. In future periods, our higher self-insured retention limits and lower excess coverage limits, may cause increased volatility in our consolidated insurance and claims expense.

In the first quarter of 2024, we exited our third-party insurance business, which offered insurance products to third-party carriers, earning premium revenues, which were partially offset by increased insurance reserves, and which exposed us to claims and inability to collect premiums. We ceased operating this business in the first quarter of 2024, which we expect will result in some reduction of volatility as we will no longer be exposed to new claims from the third-party insurance business.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Consolidated insurance and claims expense decreased by $31.9 million for the second quarter of 2024, as compared to the same period last year. The decrease for the second quarter of 2024 includes a $65.4 million decrease within our third-party insurance business as a result of the Company exiting the third-party insurance business at the end of the first quarter. This was partially offset by an increase of $21.0 million from the results of U.S. Xpress and an increase of $12.5 million for the settlement of an auto liability claim from 2020.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Consolidated insurance and claims expense decreased by $47.5 million for the first half of 2024, as compared to the same period last year. The decrease for the first half of 2024 includes a $116.8 million decrease within our third-party insurance business as a result of the Company exiting the third-party insurance business at the end of the first quarter. This was partially offset by an increase of $46.9 million from the results of U.S. Xpress and an increase of $12.5 million for the settlement of an auto liability claim from 2020.

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	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Operating taxes and licenses	$	30,374		$	28,332		$	61,703		$	54,222		7.2	%	13.8	%
% of total revenue	1.6		%	1.8		%	1.7		%	1.7		%	(20	bps)	—	bps
% of revenue, excluding truckload and LTL fuel surcharge	1.9		%	2.0		%	1.9		%	1.9		%	(10	bps)	—	bps

Operating taxes and licenses include state franchise taxes, state and federal highway use taxes, property taxes, vehicle license and registration fees, and fuel and mileage taxes, among others. The expense is impacted by changes in the tax rates and registration fees associated with our tractor fleet and regional operating facilities.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Operating taxes and licenses expenses increased by $2.0 million for the second quarter of 2024, as compared to the same period last year. The change includes $4.0 million from the results of U.S. Xpress, partially offset by a decrease in tractor count excluding U.S. Xpress. However, it remained relatively flat as a percentage of revenue, excluding truckload and LTL fuel surcharge, as compared to the same period last year.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Operating taxes and licenses expenses increased by $7.5 million for the first half of 2024, as compared to the same period last year. The change includes $8.0 million from the results of U.S. Xpress. However, it remained relatively flat as a percentage of revenue, excluding truckload and LTL fuel surcharge, as compared to the same period last year.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Communications	$	8,264		$	6,184		$	15,797		$	11,933		33.6	%	32.4	%
% of total revenue	0.4		%	0.4		%	0.4		%	0.4		%	—	bps	—	bps
% of revenue, excluding truckload and LTL fuel surcharge	0.5		%	0.4		%	0.5		%	0.4		%	10	bps	10	bps

Communications expense is comprised of costs associated with our tractor and trailer tracking systems, information technology systems, and phone systems.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Communications expense increased $2.1 million for the second quarter of 2024, as compared to the same period last year. The change includes $2.1 million from the results of U.S. Xpress. However, it remained relatively flat as a percentage of revenue, excluding truckload and LTL fuel surcharge, as compared to the same period last year.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Communications expense increased $3.9 million for the first half of 2024, as compared to the same period last year. The change includes $4.3 million from the results of U.S. Xpress. However, it remained relatively flat as a percentage of revenue, excluding truckload and LTL fuel surcharge, as compared to the same period last year.

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	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Depreciation and amortization of property and equipment	$	178,850		$	156,381		$	360,715		$	312,347		14.4	%	15.5	%
% of total revenue	9.7		%	10.1		%	9.8		%	9.8		%	(40	bps)	—	bps
% of revenue, excluding truckload and LTL fuel surcharge	10.9		%	11.2		%	11.1		%	11.0		%	(30	bps)	10	bps

Depreciation relates primarily to our owned tractors, trailers, buildings, electronic logging devices, other communication units, and other similar assets. Changes to this fixed cost are generally attributed to increases or decreases to company-owned equipment, the relative percentage of owned versus leased equipment, and fluctuations in new equipment purchase prices. Depreciation can also be affected by the cost of used equipment that we sell or trade and the replacement of older used equipment. Management periodically reviews the condition, average age, and reasonableness of estimated useful lives and salvage values of our equipment and considers such factors in light of our experience with similar assets, used equipment market conditions, and prevailing industry practices.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Consolidated depreciation and amortization of property and equipment increased by $22.5 million for the second quarter of 2024, as compared to the same period last year. The increase includes $25.5 million from the results of U.S. Xpress, partially offset by a decrease in tractor depreciation due to a decrease in tractor count (excluding U.S. Xpress).

Comparison Between Year-to-Date June 30, 2024 and 2023 — Consolidated depreciation and amortization of property and equipment increased by $48.4 million for the first half of 2024, as compared to the same period last year. The increase includes $52.3 million from the results of U.S. Xpress, partially offset by a decrease in tractor depreciation due to a decrease in tractor count (excluding U.S. Xpress).

We anticipate that depreciation and amortization expense will increase, as a percentage of revenue, excluding truckload and LTL fuel surcharge, as we intend to purchase, rather than enter into operating leases, for a majority of our revenue equipment, terminal improvements, or terminal expansions in the remainder of 2024.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Amortization of intangibles	$	18,544		$	16,505		$	37,087		$	32,688		12.4	%	13.5	%
% of total revenue	1.0		%	1.1		%	1.0		%	1.0		%	(10	bps)	—	bps
% of revenue, excluding truckload and LTL fuel surcharge	1.1		%	1.2		%	1.1		%	1.2		%	(10	bps)	(10	bps)

Amortization of intangibles relates to intangible assets identified with the 2017 Merger, ACT Acquisition, U.S. Xpress Acquisition, various other acquisitions. See Note 3 in Part I, Item 1, of this Quarterly Report for more details regarding details of our acquisitions.

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	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Rental expense	$	43,930		$	16,073		$	86,926		$	31,141		173.3	%	179.1	%
% of total revenue	2.4		%	1.0		%	2.4		%	1.0		%	140	bps	140	bps
% of revenue, excluding truckload and LTL fuel surcharge	2.7		%	1.2		%	2.7		%	1.1		%	150	bps	160	bps

Rental expense consists primarily of payments for revenue equipment assumed in the U.S. Xpress Acquisition, as well as our terminals and other real estate leases.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Consolidated rental expense increased $27.9 million for the second quarter of 2024, as compared to the same period last year. The increase is primarily related to the inclusion of $27.6 million from the results of U.S. Xpress.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Consolidated rental expense increased $55.8 million for the first half of 2024, as compared to the same period last year. The increase is primarily related to the inclusion of $54.2 million from the results of U.S. Xpress. Additional increases relate to the incorporation of new facilities as we expand our LTL network and were partially offset by a decrease in the rental expense for revenue equipment.

	Quarter Ended June 30,						Year-to-Date June 30,						QTD 2024 vs.		YTD 2024 vs.
	2024			2023			2024			2023			QTD 2023		YTD 2023
	(Dollars in thousands)												Increase (Decrease)
Purchased transportation	$	286,768		$	258,259		$	564,025		$	538,988		11.0	%	4.6	%
% of total revenue	15.5		%	16.6		%	15.4		%	16.9		%	(110	bps)	(150	bps)
% of revenue, excluding truckload and LTL fuel surcharge	17.5		%	18.6		%	17.3		%	19.0		%	(110	bps)	(170	bps)

Purchased transportation expense is comprised of payments to independent contractors in our trucking operations, as well as payments to third-party capacity providers related to logistics, freight management, and non-trucking services in our logistics and intermodal businesses. Purchased transportation is generally affected by capacity in the market as well as changes in fuel prices. As capacity tightens, our payments to third-party capacity providers and to independent contractors tend to increase. Additionally, as fuel prices increase, payments to third-party capacity providers and independent contractors increase. Purchased transportation expense may also fluctuate as a percentage of revenue based on the relative growth of our logistics and intermodal businesses as compared to our full truckload and LTL businesses.

Comparison Between Quarters Ended June 30, 2024 and 2023 — Consolidated purchased transportation expense increased $28.5 million for the second quarter of 2024, as compared to the same period last year. The increase is primarily due to the inclusion of $74.2 million from the results of U.S. Xpress, partially offset by decreased load volume within our logistics and intermodal businesses.

Comparison Between Year-to-Date June 30, 2024 and 2023 — Consolidated purchased transportation expense increased $25.0 million for the first half of 2024, as compared to the same period last year. The increase is primarily due to the inclusion of $144.9 million from the results of U.S. Xpress, partially offset by decreased load volume within our logistics and intermodal businesses.

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	Quarter Ended June 30,				Year-to-Date June 30,				QTD 2024 vs.		YTD 2024 vs.
	2024		2023		2024		2023		QTD 2023		YTD 2023
	(Dollars in thousands)								Increase (Decrease)
Impairments	$	5,877	$	—	$	9,859	$	—	100.0	%	100.0	%

In 2024, we incurred impairment charges associated with building improvements certain revenue equipment held for sale, leases, and other equipment (within the Truckload segment and All Other Segments).

	Quarter Ended June 30,				Year-to-Date June 30,				QTD 2024 vs.		YTD 2024 vs.
	2024		2023		2024		2023		QTD 2023		YTD 2023
	(Dollars in thousands)								Increase (Decrease)
Miscellaneous operating expenses	$	52,447	$	36,992	$	106,279	$	67,701	41.8	%	57.0	%

Miscellaneous operating expenses primarily consist of legal and professional services fees, general and administrative expenses, other costs, as well as net gain on sales of equipment.

Comparison Between the Quarters Ended June 30, 2024 and 2023 — The $15.5 million increase in net consolidated miscellaneous operating expenses is primarily due to the inclusion of $10.5 million from the results of U.S. Xpress as well as a $7.4 million decrease in gain on sales of equipment.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $38.6 million increase in net consolidated miscellaneous operating expenses is primarily due to the inclusion of $19.8 million from the results of U.S. Xpress as well as a $21.7 million decrease in gain on sales of equipment.

Consolidated Other Expenses (Income)

	Quarter Ended June 30,				Year-to-Date June 30,				QTD 2024 vs.		YTD 2024 vs.
	2024		2023		2024		2023		QTD 2023		YTD 2023
	(Dollars in thousands)								Increase (Decrease)
Interest expense	$	40,482	$	24,354	$	81,718	$	47,445	66.2	%	72.2	%
Other (income) expenses, net	(4,888)		(9,679)		(13,880)		(19,382)		(49.5	%)	(28.4	%)
Income tax expense	11,790		21,959		8,116		54,694		(46.3	%)	(85.2	%)

Interest expense — Interest expense is comprised of debt and finance lease interest expense as well as amortization of deferred loan costs. The increase in interest expense during the second quarter and the first half of 2024 was primarily due to higher debt balances related to the acquisition of U.S. Xpress as well as higher interest rates. Additional details regarding our debt are discussed in Note 6 in Part I, Item 1 of this Quarterly Report.

Other (income) expenses, net — Other (income) expenses, net is primarily comprised of losses and (gains) from our various equity investments, as well as certain other non-operating income and expense items that may arise outside of the normal course of business.

Comparison Between the Quarters Ended June 30, 2024 and 2023 — The $4.8 million decrease in other (income) expenses, net is primarily driven by a decrease in the net gain recorded within our portfolio of investments during the second quarter of 2024.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $5.5 million decrease in other (income) expenses, net is primarily driven by a decrease in the net gain recorded within our portfolio of investments during the first half of 2024.

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Income tax expense — In addition to the discussion below, Note 4 in Part I, Item 1 of this Quarterly Report provides further analysis related to income taxes.

Comparison Between the Quarters Ended June 30, 2024 and 2023 — The $10.2 million decrease in consolidated income tax expense was primarily due to a reduction of pre-tax income. Our effective tax rate for the second quarter of 2024 was 37.2%, compared to 25.9% for the second quarter of 2023.

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $46.6 million decrease in consolidated income tax expense was primarily due to a reduction of pre-tax income. This resulted in an effective tax rate of 32.4% for the first half of 2024, and 24.7% for the first half of 2023.

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Non-GAAP Financial Measures

The terms "Adjusted Net Income Attributable to Knight-Swift," "Adjusted EPS," "Adjusted Operating Income," "Adjusted Operating Ratio," and "Free Cash Flow," as we define them, are not presented in accordance with GAAP. These financial measures supplement our GAAP results in evaluating certain aspects of our business. We believe that using these measures improves comparability in analyzing our performance because they remove the impact of items from our operating results that, in our opinion, do not reflect our core operating performance. Management and the Board focus on Adjusted Net Income Attributable to Knight-Swift, Adjusted EPS, Adjusted Operating Income, and Adjusted Operating Ratio as key measures of our performance, all of which are reconciled to the most comparable GAAP financial measures and further discussed below. Management and the Board use Free Cash Flow as a key measure of our liquidity. Free Cash Flow does not represent residual cash flow available for discretionary expenditures. We believe our presentation of these non-GAAP financial measures is useful because it provides investors and securities analysts the same information that we use internally for purposes of assessing our core operating performance.

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

Pursuant to the requirements of Regulation G, the following tables reconcile GAAP consolidated net income attributable to Knight-Swift to non-GAAP consolidated Adjusted Net Income attributable to Knight-Swift, GAAP consolidated earnings per diluted share to non-GAAP consolidated Adjusted EPS, GAAP consolidated operating ratio to non-GAAP consolidated Adjusted Operating Ratio, GAAP reportable segment operating income to non-GAAP reportable segment Adjusted Operating Income, GAAP reportable segment operating ratio to non-GAAP reportable segment Adjusted Operating Ratio, and GAAP cash flow from operations to non-GAAP Free Cash Flow.

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Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
	(In thousands)
GAAP: Net income attributable to Knight-Swift	$	20,300	$	63,326	$	17,665	$	167,610
Adjusted for:
Income tax expense attributable to Knight-Swift	11,790		21,959		8,116		54,694
Income before income taxes attributable to Knight-Swift	32,090		85,285		25,781		222,304
Amortization of intangibles 1	18,544		16,505		37,087		32,688
Impairments 2	5,877		—		9,859		—
Legal accruals 3	265		1,300		1,828		1,000
Transaction fees 4	—		5,332		—		6,868
Severance expense 5	373		—		7,219		1,452
Change in fair value of deferred earnout 6	—		(2,500)		—		(2,500)
Adjusted income before income taxes	57,149		105,922		81,774		261,812
Provision for income tax expense at effective rate 7	(17,774)		(27,304)		(22,625)		(64,703)
Non-GAAP: Adjusted Net Income Attributable to Knight-Swift	$	39,375	$	78,618	$	59,149	$	197,109

Note: Since the numbers reflected in the table below are calculated on a per share basis, they may not foot due to rounding.

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
GAAP: Earnings per diluted share	$	0.13	$	0.39	$	0.11	$	1.04
Adjusted for:
Income tax expense attributable to Knight-Swift	0.07		0.14		0.05		0.34
Income before income taxes attributable to Knight-Swift	0.20		0.53		0.16		1.37
Amortization of intangibles 1	0.11		0.10		0.23		0.20
Impairments 2	0.04		—		0.06		—
Legal accruals 3	—		0.01		0.01		0.01
Transaction fees 4	—		0.03		—		0.04
Severance expense 5	—		—		0.04		0.01
Change in fair value of deferred earnout 6	—		(0.02)		—		(0.02)
Adjusted income before income taxes	0.35		0.65		0.50		1.62
Provision for income tax expense at effective rate 7	(0.11)		(0.17)		(0.14)		(0.40)
Non-GAAP: Adjusted EPS	$	0.24	$	0.49	$	0.36	$	1.22

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1    "Amortization of intangibles" reflects the non-cash amortization expense relating to intangible assets identified in the 2017 Merger, the ACT Acquisition, the U.S. Xpress Acquisition, and other acquisitions. Refer to Note 3 in Part I, Item 1 of this Quarterly Report for additional details regarding our acquisitions.

2    "Impairments" reflects the non-cash impairments of building improvements, certain revenue equipment held for sale, leases, and other equipment (within the Truckload segment and All Other Segments).

3    "Legal accruals" are included in "Miscellaneous operating expenses" in the condensed consolidated statements of comprehensive income and reflect the following:

•Second quarter 2024 legal expense reflects the increased estimated exposures for accrued legal matters based on recent settlement agreements. First quarter 2024 legal expense reflects the increased estimated exposures for an accrued legal matter based on a recent settlement agreement.

•Second quarter 2023 legal expense reflects the increased estimated exposure for an accrued legal matter based on a recent settlement agreement. First quarter 2023 legal expense reflects a decrease in the estimated exposure related to an accrued legal matter previously identified as probable and estimable in prior periods based on a recent settlement agreement.

4    "Transaction fees" consists of legal and professional fees associated with the July 1, 2023 acquisition of U.S. Xpress. The transaction fees are primarily included within "Miscellaneous operating expenses" in the condensed statements of comprehensive income.

5    "Severance expense" is included within "Salaries, wages, and benefits" in the condensed statements of comprehensive income.

6    "Change in fair value of deferred earnout" reflects the expense for the change in fair value of a deferred earnout related to the acquisition of UTXL, which is recorded in "Miscellaneous operating expenses."

7 For the second quarter of 2024, an adjusted effective tax rate of 31.1% was applied in our Adjusted EPS calculation to exclude certain discrete items. For the year-to-date period ended June 30, 2024, an adjusted effective tax rate of 27.7% was applied in our Adjusted EPS calculation to exclude certain discrete items.

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Non-GAAP Reconciliation: Consolidated Adjusted Operating Income and Adjusted Operating Ratio

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP Presentation	(Dollars in thousands)
Total revenue	$	1,846,654		$	1,552,979		$	3,669,121		$	3,189,911
Total operating expenses	(1,783,194)			(1,458,949)			(3,585,106)			(2,951,094)
Operating income	$	63,460		$	94,030		$	84,015		$	238,817
Operating ratio	96.6		%	93.9		%	97.7		%	92.5		%
Non-GAAP Presentation
Total revenue	$	1,846,654		$	1,552,979		$	3,669,121		$	3,189,911
Truckload and LTL fuel surcharge	(204,953)			(162,531)			(414,606)			(349,170)
Revenue, excluding truckload and LTL fuel surcharge	1,641,701			1,390,448			3,254,515			2,840,741
Total operating expenses	1,783,194			1,458,949			3,585,106			2,951,094
Adjusted for:
Truckload and LTL fuel surcharge	(204,953)			(162,531)			(414,606)			(349,170)
Amortization of intangibles 1	(18,544)			(16,505)			(37,087)			(32,688)
Impairments 2	(5,877)			—			(9,859)			—
Legal accruals 3	(265)			(1,300)			(1,828)			(1,000)
Transaction fees 4	—			(5,332)			—			(6,868)
Severance expense 5	(373)			—			(7,219)			(1,452)
Change in fair value of deferred earnout 6	—			2,500			—			2,500
Adjusted Operating Expenses	1,553,182			1,275,781			3,114,507			2,562,416
Adjusted Operating Income	$	88,519		$	114,667		$	140,008		$	278,325
Adjusted Operating Ratio	94.6		%	91.8		%	95.7		%	90.2		%

1    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 1.

2    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 2.

3    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 3.

4    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 4.

5    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 5.

6    See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 6.

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Non-GAAP Reconciliation: Reportable Segment Adjusted Operating Income and Adjusted Operating Ratio

Truckload Segment

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP Presentation	(Dollars in thousands)
Total revenue	$	1,264,237		$	953,659		$	2,527,252		$	1,965,904
Total operating expenses	(1,240,754)			(885,748)			(2,480,622)			(1,782,094)
Operating income	$	23,483		$	67,911		$	46,630		$	183,810
Operating ratio	98.1		%	92.9		%	98.2		%	90.7		%
Non-GAAP Presentation
Total revenue	$	1,264,237		$	953,659		$	2,527,252		$	1,965,904
Fuel surcharge	(161,570)			(124,004)			(330,091)			(269,268)
Intersegment transactions	123			(282)			(320)			(1,283)
Revenue, excluding fuel surcharge and intersegment transactions	1,102,790			829,373			2,196,841			1,695,353
Total operating expenses	1,240,754			885,748			2,480,622			1,782,094
Adjusted for:
Fuel surcharge	(161,570)			(124,004)			(330,091)			(269,268)
Intersegment transactions	123			(282)			(320)			(1,283)
Amortization of intangibles 1	(1,775)			(299)			(3,550)			(642)
Impairments 2	(5,555)			—			(8,654)			—
Legal accruals 3	30			—			30			—
Severance expense 4	(373)			—			(1,466)			—
Adjusted Operating Expenses	1,071,634			761,163			2,136,571			1,510,901
Adjusted Operating Income	$	31,156		$	68,210		$	60,270		$	184,452
Adjusted Operating Ratio	97.2		%	91.8		%	97.3		%	89.1		%

1"Amortization of intangibles" reflects the non-cash amortization expense relating to intangible assets identified in historical Knight acquisitions and the U.S. Xpress Acquisition.

2See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 2.

3See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 3.

4See Non-GAAP Reconciliation: Consolidated Adjusted Net Income Attributable to Knight-Swift and Adjusted EPS footnote 5.

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LTL Segment

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP Presentation	(Dollars in thousands)
Total revenue	$	306,478		$	267,105		$	588,600		$	522,409
Total operating expenses	(273,429)			(236,867)			(535,264)			(465,589)
Operating income	$	33,049		$	30,238		$	53,336		$	56,820
Operating ratio	89.2		%	88.7		%	90.9		%	89.1		%
Non-GAAP Presentation
Total revenue	$	306,478		$	267,105		$	588,600		$	522,409
Fuel surcharge	(43,383)			(38,527)			(84,515)			(79,902)
Revenue, excluding fuel surcharge	263,095			228,578			504,085			442,507
Total operating expenses	273,429			236,867			535,264			465,589
Adjusted for:
Fuel surcharge	(43,383)			(38,527)			(84,515)			(79,902)
Amortization of intangibles 1	(3,920)			(3,920)			(7,840)			(7,840)
Adjusted Operating Expenses	226,126			194,420			442,909			377,847
Adjusted Operating Income	$	36,969		$	34,158		$	61,176		$	64,660
Adjusted Operating Ratio	85.9		%	85.1		%	87.9		%	85.4		%

1"Amortization of intangibles" reflects the non-cash amortization expense relating to intangible assets identified with the ACT and MME acquisitions.

Logistics Segment

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP Presentation	(Dollars in thousands)
Total revenue	$	131,700		$	119,943		$	258,429		$	258,226
Total operating expenses	(126,941)			(110,377)			(251,197)			(235,840)
Operating income	$	4,759		$	9,566		$	7,232		$	22,386
Operating ratio	96.4		%	92.0		%	97.2		%	91.3		%
Non-GAAP Presentation
Total revenue	$	131,700		$	119,943		$	258,429		$	258,226
Intersegment transactions	—			(2,161)			—			(3,667)
Revenue, excluding intersegment transactions	131,700			117,782			258,429			254,559
Total operating expenses	126,941			110,377			251,197			235,840
Adjusted for:
Intersegment transactions	—			(2,161)			—			(3,667)
Amortization of intangibles 1	(1,164)			(334)			(2,328)			(668)
Adjusted Operating Expenses	125,777			107,882			248,869			231,505
Adjusted Operating Income	$	5,923		$	9,900		$	9,560		$	23,054
Adjusted Operating Ratio	95.5		%	91.6		%	96.3		%	90.9		%

1"Amortization of intangibles" reflects the non-cash amortization expense relating to intangible assets identified in the U.S. Xpress and UTXL acquisitions.

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Intermodal Segment

	Quarter Ended June 30,						Year-to-Date June 30,
	2024			2023			2024			2023
GAAP Presentation	(Dollars in thousands)
Total revenue	$	97,528		$	104,327		$	185,513		$	214,899
Total operating expenses	(99,245)			(110,959)			(192,138)			(216,429)
Operating loss	$	(1,717)		$	(6,632)		$	(6,625)		$	(1,530)
Operating ratio	101.8		%	106.4		%	103.6		%	100.7		%

Non-GAAP Reconciliation: Free Cash Flow

	Year-to-Date June 30, 2024
GAAP: Cash flows from operations	$	310,700
Adjusted for:
Proceeds from sale of property and equipment, including assets held for sale	114,033
Purchases of property and equipment	(372,661)
Non-GAAP: Free Cash Flow	$	52,072

Liquidity and Capital Resources

Sources of Liquidity

Our primary sources of liquidity are funds provided by operations and the following:

Source	June 30, 2024
	(In thousands)
Cash and cash equivalents, excluding restricted cash	$	186,473
Availability under 2021 Revolver, due September 2026 1	961,899
Availability under 2023 RSA, due October 2025 2	333
Total unrestricted liquidity	$	1,148,705
Cash and cash equivalents – restricted 3	152,784
Total liquidity, including restricted cash	$	1,301,489

1    As of June 30, 2024, we had $120.0 million borrowings under our $1.1 billion 2021 Revolver. We additionally had $18.1 million in outstanding letters of credit (discussed below) issued under the 2021 Revolver, leaving $961.9 million available under the 2021 Revolver.

2    Based on eligible receivables at June 30, 2024, our borrowing base for the 2023 RSA was $479.9 million, while outstanding borrowings were $452.4 million, along with $27.2 million in outstanding letters of credit, leaving $0.3 million available under the 2023 RSA. Refer to Note 5 in Part I, Item 1 of this Quarterly Report for more information regarding the 2023 RSA.

3    Restricted cash is primarily held by our captive insurance companies for claims payments. "Cash and cash equivalents – restricted" consists of $149.6 million included in "Cash and cash equivalents – restricted" on the condensed consolidated balance sheet held by Mohave and Red Rock for claims payments. The remaining $3.2 million is included in "Other long-term assets" and is held in escrow accounts to meet statutory requirements.

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Uses of Liquidity

Our business requires substantial amounts of cash for operating activities, including salaries and wages paid to our employees, contract payments to independent contractors, insurance and claims payments, tax payments, and others. We also use large amounts of cash and credit for the following activities:

Capital Expenditures — When justified by customer demand, as well as our liquidity and our ability to generate acceptable returns, we make substantial cash capital expenditures to maintain a modern company tractor fleet, refresh and expand our trailer fleet, expand our network of LTL service centers, and, to a lesser extent, fund upgrades to our terminals and technology in our various service offerings. In connection with our business strategy, we regularly evaluate acquisition and strategic partnership opportunities. We expect net cash capital expenditures, will be in the range of $600.0 – $650.0 million for full-year 2024. Our expected net cash capital expenditures primarily represent replacements of existing tractors and trailers and investments in our terminal network, driver amenities, and technology, and excludes acquisitions. We believe we have ample flexibility in our trade cycle and purchase agreements to alter our current plans if economic and other conditions warrant.

Over the long-term, we will continue to have significant capital requirements, which may require us to seek additional borrowing, lease financing, or equity capital. The availability of financing or equity capital will depend upon our financial condition and results of operations as well as prevailing market conditions. If such additional borrowing, lease financing, or equity capital is not available at the time we need it, then we may need to borrow more under the 2021 Revolver (if not then fully drawn), extend the maturity of then-outstanding debt, rely on alternative financing arrangements, engage in asset sales, limit our fleet size, or operate our revenue equipment for longer periods.

There can be no assurance that we will be able to obtain additional debt under our existing financial arrangements to satisfy our ongoing capital requirements. However, we believe the combination of our expected cash flows, financing available through operating and finance leases, available funds under our accounts receivable securitization, and availability under the 2021 Revolver will be sufficient to fund our expected capital expenditures for at least the next twelve months.

Principal and Interest Payments — As of June 30, 2024, we had debt, accounts receivable securitization, and finance lease obligations of $2.7 billion, which are discussed under "Material Debt Agreements," below. Certain cash flows from operations are committed to minimum payments of principal and interest on our debt and lease obligations. Additionally, when our financial position allows, we periodically make voluntary prepayments on our outstanding debt balances.

Letters of Credit — Pursuant to the terms of the 2021 Debt Agreement and the 2023 RSA, our lenders may issue standby letters of credit on our behalf. When we have certain letters of credit outstanding, the availability under the 2021 Revolver or 2023 RSA is reduced accordingly. As of June 30, 2024, we also had outstanding letters of credit of $265.0 million pursuant to a bilateral agreement which do not impact the availability of the 2021 Revolver and 2023 RSA. Standby letters of credit are typically issued for the benefit of regulatory authorities, insurance companies and state departments of insurance for the purpose of satisfying certain collateral requirements, primarily related to our automobile, workers' compensation, and general insurance liabilities.

Share Repurchases — From time to time, and depending on Free Cash Flow1 availability, debt levels, common stock prices, general economic and market conditions, as well as internal approval requirements, we may repurchase shares of our outstanding common stock. As of June 30, 2024, the Company had $200.0 million remaining under the 2022 Knight-Swift Share Repurchase Plan. Additional details regarding our share repurchase plans are discussed in Note 10 in Part I, Item 1 of this Quarterly Report.

________

1Refer to "Non-GAAP Financial Measures."

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Working Capital

We had a working capital deficit of $199.9 million as of June 30, 2024 and a working capital deficit of $116.3 million as of December 31, 2023. Our working capital deficit is primarily attributed to the current maturity related to the 2021 Term Loan A-2 which matures in September 2024.

Material Debt Agreements

As of June 30, 2024, we had $2.7 billion in material debt obligations at the following carrying values:

•$200.0 million: 2021 Term Loan A-2, due September 2024, net of $25,000 in deferred loan costs

•$799.2 million: 2021 Term Loan A-3, due September 2026, net of $0.8 million in deferred loan costs

•$249.3 million: 2023 Term Loan, due September 2026, net of $0.7 million in deferred loan costs

•$452.0 million: 2023 RSA outstanding borrowings, net of $0.4 million in deferred loan costs

•$569.5 million: Finance lease obligations

•$120.0 million: 2021 Revolver, due September 2026

•$251.3 million: Revenue equipment installment notes

•$24.1 million: Other, net of approximately $16,000 in deferred loan costs

As of December 31, 2023, we had $2.7 billion in material debt obligations at the following carrying values:

•$199.9 million: 2021 Term Loan A-2, due September 2024, net of $0.1 million in deferred loan costs

•$799.1 million: 2021 Term Loan A-3, due September 2026, net of $0.9 million in deferred loan costs

•$249.1 million: 2023 Term Loan, due September 2026, net of $0.9 million in deferred loan costs

•$526.5 million: 2023 RSA outstanding borrowings, net of $0.5 million in deferred loan costs

•$528.9 million: Finance lease obligations

•$67.0 million: 2021 Revolver, due September 2026

•$279.3 million: Revenue equipment installment notes

•$33.6 million: Other, net of $22,000 in deferred loan costs

Cash Flow Analysis

	Year-to-Date June 30,				Change
	2024		2023
	(In thousands)
Net cash provided by operating activities	$	310,700	$	722,190	$	(411,490)
Net cash used in investing activities	(258,841)		(415,990)		157,149
Net cash (used in) provided by financing activities	(182,288)		236,624		(418,912)

Net Cash Provided by Operating Activities

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $411.5 million decrease in net cash provided by operating activities included a $154.8 million decrease in operating income for year-to-date June 30, 2024, a $161.1 million cash payment for a commutation agreement to transfer certain outstanding insurance reserves to a third party, and a $41.1 million increase in cash paid for interest. Note: Factors affecting the increase in operating income are discussed in "Results of Operations — Consolidated Operating and Other Expenses."

Net Cash Used in Investing Activities

Comparison Between Year-to-Date June 30, 2024 and 2023 — The $157.1 million decrease in net cash used in investing activities was primarily due to a $160.5 million decrease in net cash capital expenditures.

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Net Cash Used in Financing Activities

Comparison Between Year-to-Date June 30, 2024 and 2023 — Net cash used in financing activities increased by $418.9 million, primarily due to a $250.0 million decrease in proceeds from the 2023 Term Loan, $114.0 million decrease in net proceeds from our 2021 Revolver, and a $62.0 million increase in repayments on our finance leases and long-term debt.

Seasonality

Discussion regarding the impact of seasonality on our business is included in Note 1 in the notes to the condensed consolidated financial statements, included in Part I, Item 1 of this Quarterly Report, incorporated by reference herein.

Inflation

Most of our operating expenses are inflation-sensitive, with inflation generally leading to increased costs of operations. Price increases in manufactured revenue equipment has impacted the cost for us to acquire new equipment. Cost increases have also impacted the cost of parts for equipment repairs and maintenance. The qualified driver shortage experienced by the trucking industry overall has had the effect of increasing compensation paid to our driving associates. We have also experienced inflation in insurance and claims cost related to health insurance and claims as well as auto liability insurance and claims. Prolonged periods of inflation have recently and could continue to cause interest rates, fuel, wages, and other costs to increase as well. Any of these factors could adversely affect our results of operations unless freight rates correspondingly increase.

Recently Issued Accounting Pronouncements

See Note 2 in Part I, Item 1 of this Quarterly Report, which is incorporated herein by reference, for the impact of recently issued accounting pronouncements on the Company's condensed consolidated financial statements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

We have exposure from variable interest rates, primarily related to our 2021 Debt Agreement, 2023 Term Loan, and 2023 RSA. These variable interest rates are impacted by changes in short-term interest rates. We primarily manage interest rate exposure through a mix of variable rate debt (weighted average rate of 6.7% as of June 30, 2024) and fixed rate equipment lease financing. Assuming the level of borrowings as of June 30, 2024, a hypothetical one percentage point increase in interest rates would increase our annual interest expense by $18.4 million.

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Commodity Price Risk

We have commodity exposure with respect to fuel used in company-owned tractors. Increases in fuel prices would continue to raise our operating costs, even after applying fuel surcharge revenue. Historically, we have been able to recover a majority of fuel price increases from our customers in the form of fuel surcharges. The weekly average diesel price per gallon in the US decreased to $3.86 for the second quarter of 2024 from an average of $3.94 in the second quarter of 2023. The weekly average diesel price per gallon decreased to $3.91 for year-to-date June 30, 2024 from an average price of $4.16 for year-to-date June 30, 2023. We cannot predict the extent or speed of potential changes in fuel price levels in the future, the degree to which the lag effect of our fuel surcharge programs will impact us as a result of the timing and magnitude of such changes, or the extent to which effective fuel surcharges can be maintained and collected to offset such increases. We generally have not used derivative financial instruments to hedge our fuel price exposure in the past, but continue to evaluate this possibility. To mitigate the impact of rising fuel costs, we contract with some of our fuel suppliers to buy fuel at a fixed price or within banded pricing for a specified period, usually not exceeding twelve months. However, these purchase commitments only cover a small portion of our fuel consumption. Accordingly, fuel price fluctuations may still negatively impact us.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We have established disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) to ensure that material information relating to us, including our consolidated subsidiaries, is made known to the officers who certify our financial reports and to other members of senior management and the Board. Our management, with the participation of our principal executive officer and principal financial officer, conducted an evaluation of the effectiveness of our disclosure controls and procedures. Based on this evaluation, as of the end of the period covered by this Quarterly Report on Form 10-Q our principal executive officer and principal financial officer have concluded that our disclosure controls and procedures are effective to ensure that the information required to be disclosed by us in the reports that we file or submit under the Exchange Act is (1) recorded, processed, summarized, and reported within the time periods specified in the SEC rules and forms, and (2) accumulated and communicated to management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended June 30, 2024, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. We base our internal control over financial reporting on the criteria set forth in the 2013 COSO Internal Control: Integrated Framework.

We have confidence in our disclosure controls and procedures and internal control over financial reporting. Nevertheless, our management, including our principal executive officer and principal financial officer, does not expect that our disclosure controls and procedures and internal control over financial reporting will prevent all errors, misstatements, or fraud. A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, have been detected.

58

Table of Contents Glossary of Terms

KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.

PART II OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Information about our legal proceedings is included in Note 9 of the notes to our condensed consolidated financial statements, included in Part I, Item 1, of this Quarterly Report for the period ended June 30, 2024, and is incorporated by reference herein.

ITEM 1A. RISK FACTORS

While we attempt to identify, manage, and mitigate risks and uncertainties associated with our business, some level of risk and uncertainty will always be present. Our 2023 Annual Report in the section entitled "Item 1A. Risk Factors," describes some of the risks and uncertainties associated with our business.

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

Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value That May Yet be Purchased Under the Plans or Programs 1
	(in thousands, except per share data)
April 1, 2024 to April 30, 2024	—	$	—	—	$	200,041
May 1, 2024 to May 31, 2024	—	$	—	—	$	200,041
June 1, 2024 to June 30, 2024	—	$	—	—	$	200,041
Total	—	$	—	—	$	200,041

1In April 2022, we announced that the Board had approved the $350.0 million 2022 Knight-Swift Share Repurchase Plan, replacing the 2020 Knight-Swift Share Repurchase Plan. There is no expiration date associated with the 2022 Knight-Swift Share Repurchase Plan. See Note 10 in Part I, Item 1 of this Quarterly Report regarding our share repurchase plans.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

During the quarter ended June 30, 2024, no director or officer adopted or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement.

59

Table of Contents Glossary of Terms

KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.

ITEM 6. EXHIBITS

Exhibit  Number	Description	Page or Method of Filing
3.1	Fourth Amended and Restated Certificate of Incorporation of Knight-Swift Transportation Holdings Inc.	Incorporated by reference to Exhibit 3.1 of Form 10-Q for the quarter ended June 30, 2020
3.2	Fifth Amended and Restated By-laws of Knight-Swift Transportation Holdings Inc.	Incorporated by reference to Exhibit 3.1 of Form 8-K filed on November 12, 2023
31.1	Certification pursuant to Item 601(b)(31) of Regulation S-K, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, by Adam W. Miller, the Company's Chief Executive Officer (principal executive officer).	Filed herewith
31.2	Certification pursuant to Item 601(b)(31) of Regulation S-K, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, by Andrew Hess, the Company's Chief Financial Officer (principal financial officer).	Filed herewith
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Adam W. Miller, the Company's Chief Executive Officer.	Furnished herewith
32.2	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Andrew Hess, the Company's Chief Financial Officer.	Furnished herewith
101.INS	Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	XBRL Taxonomy Extension Schema Document	Filed herewith
101.CAL	XBRL Taxonomy Calculation Linkbase Document	Filed herewith
101.LAB	XBRL Taxonomy Label Linkbase Document	Filed herewith
101.PRE	XBRL Taxonomy Presentation Linkbase Document	Filed herewith
101.DEF	XBRL Taxonomy Extension Definition Document	Filed herewith
104	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)	Filed herewith

60

Table of Contents Glossary of Terms

KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.

SIGNATURES

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

		KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.
Date:	July 31, 2024	/s/ Adam W. Miller
		Adam W. Miller
		Chief Executive Officer, in his capacity as such and on
		behalf of the registrant
Date:	July 31, 2024	/s/ Andrew Hess
		Andrew Hess
		Chief Financial Officer, in his capacity as such and on
		behalf of the registrant

61

EX-31.1

EXHIBIT 31.1

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

I, Adam W. Miller, certify that:

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

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	July 31, 2024	/s/ Adam W. Miller
		Adam W. Miller
		Chief Executive Officer (principal executive officer)

EX-31.2

EXHIBIT 31.2

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

I, Andrew Hess, certify that:

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

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	July 31, 2024	/s/ Andrew Hess
		Andrew Hess
		Chief Financial Officer
		(principal financial officer)

EX-32.1

EXHIBIT 32.1

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

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Knight-Swift Transportation Holdings Inc. (the "Company") on Form 10-Q for the quarterly period ended June 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Adam W. Miller, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

		KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.
		a Delaware corporation
Date:	July 31, 2024	By:	/s/ Adam W. Miller
			Adam W. Miller
			Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to Knight-Swift Transportation Holdings Inc. and will be retained by Knight-Swift Transportation Holdings Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

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

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Knight-Swift Transportation Holdings Inc. (the "Company") on Form 10-Q for the quarterly period ended June 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Andrew Hess, Chief Financial Officer, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

		KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.
		a Delaware corporation
Date:	July 31, 2024	By:	/s/ Andrew Hess
			Andrew Hess
			Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Knight-Swift Transportation Holdings Inc. and will be retained by Knight-Swift Transportation Holdings Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2024	Jul. 24, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-35007
Entity Registrant Name	Knight-Swift Transportation Holdings Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-5589597
Entity Address, Address Line One	2002 West Wahalla Lane
Entity Address, City or Town	Phoenix
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85027
City Area Code	602
Local Phone Number	269-2000
Title of 12(b) Security	Common Stock $0.01 Par Value
Trading Symbol	KNX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		161,864,000
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001492691
Current Fiscal Year End Date	--12-31

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents		$ 186,473	$ 168,545
Cash and cash equivalents – restricted	[1]	149,571	297,275
Restricted investments, held-to-maturity, amortized cost		0	530
Trade receivables, net of allowance for doubtful accounts of $39,720 and $39,458, respectively		841,619	888,603
Contract balance – revenue in transit		14,267	12,246
Prepaid expenses		112,998	148,696
Assets held for sale		72,480	83,366
Income tax receivable		39,266	65,815
Other current assets		33,541	43,939
Total current assets		1,450,215	1,709,015
Gross property and equipment		6,917,535	6,720,610
Less: accumulated depreciation and amortization		(2,292,930)	(2,104,211)
Property and equipment, net		4,624,605	4,616,399
Operating lease right-of-use-assets		422,433	484,821
Goodwill		3,879,442	3,848,798
Intangible assets, net		2,021,838	2,058,882
Other long-term assets		171,792	152,850
Total assets		12,570,325	12,870,765
Current liabilities:
Accounts payable		300,585	355,173
Accrued payroll and purchased transportation		183,858	164,884
Accrued liabilities		197,801	220,350
Claims accruals – current portion		358,553	480,200
Finance lease liabilities and long-term debt – current portion		485,907	459,759
Operating lease liabilities – current portion		123,396	144,921
Total current liabilities		1,650,100	1,825,287
Revolving line of credit		120,000	67,000
Long-term debt – less current portion		1,173,121	1,223,021
Finance lease liabilities – less current portion		434,405	407,150
Operating lease liabilities – less current portion		326,752	371,407
Accounts receivable securitization		452,039	526,508
Claims accruals – less current portion		313,856	315,476
Deferred tax liabilities		910,882	951,749
Other long-term liabilities		118,817	79,086
Total liabilities		5,499,972	5,766,684
Commitments and contingencies (Notes 7, 8, and 9)
Stockholders’ equity:
Preferred stock, par value $0.01 per share; 10,000 shares authorized; none issued		$ 0	$ 0
Preferred stock, par value (in dollars per share)		$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)		10,000	10,000
Preferred stock, shares issued (in shares)		0	0
Common stock, par value $0.01 per share; 500,000 shares authorized; 161,836 and 161,385 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively.		$ 1,618	$ 1,613
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)		500,000	500,000
Common stock, shares issued (in shares)		161,836	161,385
Common stock, shares outstanding (in shares)		161,836	161,385
Additional paid-in capital		$ 4,439,489	$ 4,426,852
Accumulated other comprehensive loss		(827)	(830)
Retained earnings		2,613,684	2,659,755
Total Knight-Swift stockholders' equity		7,053,964	7,087,390
Noncontrolling interest		16,389	16,691
Total stockholders’ equity		7,070,353	7,104,081
Total liabilities and stockholders’ equity		$ 12,570,325	$ 12,870,765
Common Class A [Member]
Stockholders’ equity:
Common stock, shares outstanding (in shares)		161,836	161,385

[1] Reflects cash and cash equivalents that are primarily restricted for claims payments.

XML

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total revenue	$ 1,846,654	$ 1,552,979	$ 3,669,121	$ 3,189,911
Operating expenses:
Salaries, wages, and benefits	691,878	533,237	1,384,785	1,069,979
Fuel	222,573	168,300	457,162	356,059
Operations and maintenance	138,251	101,380	272,884	200,691
Insurance and claims	105,438	137,306	227,884	275,345
Operating taxes and licenses	30,374	28,332	61,703	54,222
Communications	8,264	6,184	15,797	11,933
Depreciation and amortization of property and equipment	178,850	156,381	360,715	312,347
Amortization of intangibles	18,544	16,505	37,087	32,688
Rental expense	43,930	16,073	86,926	31,141
Purchased transportation	286,768	258,259	564,025	538,988
Impairments	5,877	0	9,859	0
Miscellaneous operating expenses	52,447	36,992	106,279	67,701
Total operating expenses	1,783,194	1,458,949	3,585,106	2,951,094
Operating income	63,460	94,030	84,015	238,817
Other (expenses) income:
Interest income	3,817	5,508	8,839	10,557
Interest expense	(40,482)	(24,354)	(81,718)	(47,445)
Other income, net	4,888	9,679	13,880	19,382
Total other (expenses) income, net	(31,777)	(9,167)	(58,999)	(17,506)
Income before income taxes	31,683	84,863	25,016	221,311
Income tax expense	11,790	21,959	8,116	54,694
Net income	19,893	62,904	16,900	166,617
Net loss attributable to noncontrolling interest	407	422	765	993
Net income attributable to Knight-Swift	20,300	63,326	17,665	167,610
Other comprehensive income	41	531	3	1,621
Comprehensive income	$ 20,341	$ 63,857	$ 17,668	$ 169,231
Earnings per share:
Basic (in dollars per share)	$ 0.13	$ 0.39	$ 0.11	$ 1.04
Diluted (in dollars per share)	0.13	0.39	0.11	1.04
Dividends declared per share: (in dollars per share)	$ 0.16	$ 0.14	$ 0.32	$ 0.28
Weighted average shares outstanding:
Basic (in shares)	161,689	161,116	161,598	161,018
Diluted (in shares)	162,111	161,940	162,089	161,917
Revenue, excluding truckload and LTL fuel surcharge
Total revenue	$ 1,641,701	$ 1,390,448	$ 3,254,515	$ 2,840,741
Truckload and LTL fuel surcharge
Total revenue	$ 204,953	$ 162,531	$ 414,606	$ 349,170

XML

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income	$ 19,893	$ 62,904	$ 16,900	$ 166,617
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization of property, equipment, and intangibles			397,802	345,035
Gain on sale of property and equipment			(12,604)	(35,180)
Impairments	5,877	0	9,859	0
Deferred income taxes			(30,970)	(8,002)
Non-cash lease expense			82,263	22,138
Gain on equity securities			(288)	(1,870)
Other adjustments to reconcile net income to net cash provided by operating activities			1,324	36,277
Increase (decrease) in cash resulting from changes in:
Trade receivables			32,115	126,429
Income tax receivable			26,549	41,671
Accounts payable			(39,647)	5,072
Accrued liabilities and claims accrual			(132,943)	46,408
Operating lease liabilities			(91,427)	(22,187)
Other assets and liabilities			51,767	(218)
Net cash provided by operating activities			310,700	722,190
Cash flows from investing activities:
Proceeds from maturities of held-to-maturity investments			530	3,620
Purchases of held-to-maturity investments			0	(30)
Proceeds from sale of property and equipment, including assets held for sale			114,033	98,755
Purchases of property and equipment			(372,661)	(517,856)
Expenditures on assets held for sale			(79)	(634)
Other cash flows from investing activities			(664)	155
Net cash used in investing activities			(258,841)	(415,990)
Cash flows from financing activities:
Repayments of finance leases and long-term debt			(100,147)	(38,148)
Proceeds from long-term debt			0	250,000
Borrowings on revolving lines of credit, net			53,000	167,000
Borrowings under accounts receivable securitization			22,000	0
Repayments of accounts receivable securitization			(96,600)	(80,000)
Proceeds from common stock issued			3,108	3,222
Dividends paid			(52,342)	(45,940)
Other cash flows from financing activities			(11,307)	(19,510)
Net cash (used in) provided by financing activities			(182,288)	236,624
Net (decrease) increase in cash, restricted cash, and equivalents			(130,429)	542,824
Cash, restricted cash, and equivalents at beginning of period			469,686	385,345	$ 385,345
Cash, restricted cash, and equivalents at end of period	$ 339,257	$ 928,169	339,257	928,169	$ 469,686
Cash paid during the period for:
Interest			86,931	45,851
Income taxes			7,695	16,870
Other Significant Noncash Transactions [Line Items]
Equipment acquired included in accounts payable			29,444	30,789
Right-of-use assets obtained in exchange for operating lease liabilities			25,247	30,564
Property and equipment obtained in exchange for finance lease liabilities			77,472	19,797
Financing provided to independent contractors for equipment sold
Other Significant Noncash Transactions [Line Items]
Other non-cash investing and financing activities			1,636	3,778
Transfers from property and equipment to assets held for sale [Member]
Other Significant Noncash Transactions [Line Items]
Other non-cash investing and financing activities			49,673	80,947
Property and equipment obtained in exchange for debt and finance lease liabilities from operating lease liabilities
Other Significant Noncash Transactions [Line Items]
Property and equipment obtained in exchange for finance lease liabilities			$ 20,025	$ 0

XML

Condensed Consolidated Statements of Cash Flows (Unaudited) Reconciliation of Cash, Restricted Cash, and Cash Equivalents - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents		$ 186,473	$ 168,545	$ 228,957	$ 196,770
Cash and cash equivalents – restricted	[1]	149,571	297,275	251,438	185,792
Other long-term assets	[1]	3,213	3,866	3,117	2,783
U.S. Xpress
Condensed Cash Flow Statements, Captions [Line Items]
Acquisition escrow	[2]	$ 0	$ 0	$ 444,657	$ 0

[1] Reflects cash and cash equivalents that are primarily restricted for claims payments.

[2] Reflects restricted cash for the U.S. Xpress acquisition which closed on July 1, 2023.

XML

Condensed Consolidated Statement Of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent	Total Knight-Swift Equity [Member]	Noncontrolling Interest [Member]	Common Class A [Member]	Common Class A [Member] Common Stock
Beginning balance, shares at Dec. 31, 2022							160,706
Beginning balance, value at Dec. 31, 2022	$ 6,955,281	$ 4,392,266	$ 2,553,567	$ (2,436)	$ 6,945,004	$ 10,277		$ 1,607
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued to employees (Shares)							512
Common stock issued to employees	163	158			163			5
Common stock issued to the Board (Shares)							18
Common stock issued to the Board	977	977			977			0
Common stock issued under ESPP (Shares)							40
Common stock issued under ESPP	2,082	2,081			2,082			1
Shares withheld – RSU settlement	(18,271)		(18,271)		(18,271)
Employee stock-based compensation expense	$ 16,587	16,587			16,587
Dividends declared per share: (in dollars per share)	$ 0.28
Cash dividends paid and dividends accrued	$ (45,491)		(45,491)		(45,491)
Net income (loss)	167,610		167,610		167,610
Net loss attributable to noncontrolling interest	(993)					(993)
Net income	166,617
Other comprehensive loss	1,621			1,621	1,621
Investment in noncontrolling interest	1,716
Distribution to noncontrolling interest	(239)					(239)
Ending balance, shares at Jun. 30, 2023							161,276
Ending balance, value at Jun. 30, 2023	7,081,043	4,412,069	2,657,415	(815)	7,070,282	10,761		1,613
Beginning balance, shares at Mar. 31, 2023							161,009
Beginning balance, value at Mar. 31, 2023	7,035,594	4,401,276	2,623,373	(1,346)	7,024,913	10,681		1,610
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued to employees (Shares)							230
Common stock issued to employees	117	115			117			2
Common stock issued to the Board (Shares)							18
Common stock issued to the Board	977	977			977			0
Common stock issued under ESPP (Shares)							19
Common stock issued under ESPP	1,042	1,041			1,042			1
Shares withheld – RSU settlement	(6,523)		(6,523)		(6,523)
Employee stock-based compensation expense	$ 8,660	8,660			8,660
Dividends declared per share: (in dollars per share)	$ 0.14
Cash dividends paid and dividends accrued	$ (22,761)		(22,761)		(22,761)
Net income (loss)	63,326		63,326		63,326
Net loss attributable to noncontrolling interest	(422)					(422)
Net income	62,904
Other comprehensive loss	531			531	531
Investment in noncontrolling interest	741
Distribution to noncontrolling interest	(239)					(239)
Ending balance, shares at Jun. 30, 2023							161,276
Ending balance, value at Jun. 30, 2023	$ 7,081,043	4,412,069	2,657,415	(815)	7,070,282	10,761		1,613
Beginning balance, shares at Dec. 31, 2023	161,385						161,385
Beginning balance, value at Dec. 31, 2023	$ 7,104,081	4,426,852	2,659,755	(830)	7,087,390	16,691		1,613
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued to employees (Shares)							393
Common stock issued to employees	4	0			4			4
Common stock issued to the Board (Shares)							24
Common stock issued to the Board	1,206	1,206			1,206			0
Common stock issued under ESPP (Shares)							34
Common stock issued under ESPP	1,898	1,897			1,898			1
Shares withheld – RSU settlement	(11,651)		(11,651)		(11,651)
Employee stock-based compensation expense	$ 10,581	10,581			10,581
Dividends declared per share: (in dollars per share)	$ 0.32
Cash dividends paid and dividends accrued	$ (52,085)		(52,085)		(52,085)
Net income (loss)	17,665		17,665		17,665
Net loss attributable to noncontrolling interest	(765)					(765)
Net income	16,900
Other comprehensive loss	3			3	3
Investment in noncontrolling interest	1,473					1,473
Distribution to noncontrolling interest	$ (2,057)	(1,047)			(1,047)	(1,010)
Ending balance, shares at Jun. 30, 2024	161,836						161,836
Ending balance, value at Jun. 30, 2024	$ 7,070,353	4,439,489	2,613,684	(827)	7,053,964	16,389		1,618
Beginning balance, shares at Mar. 31, 2024							161,593
Beginning balance, value at Mar. 31, 2024	7,072,222	4,430,736	2,624,666	(868)	7,056,150	16,072		1,616
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued to employees (Shares)							202
Common stock issued to employees	2	0			2			2
Common stock issued to the Board (Shares)							24
Common stock issued to the Board	1,208	1,208			1,208			0
Common stock issued under ESPP (Shares)							17
Common stock issued under ESPP	945	945			945			0
Shares withheld – RSU settlement	(5,216)		(5,216)		(5,216)
Employee stock-based compensation expense	$ 6,600	6,600			6,600
Dividends declared per share: (in dollars per share)	$ 0.16
Cash dividends paid and dividends accrued	$ (26,066)		(26,066)		(26,066)
Net income (loss)	20,300		20,300		20,300
Net loss attributable to noncontrolling interest	(407)					(407)
Net income	19,893
Other comprehensive loss	41			41	41
Investment in noncontrolling interest	743					743
Distribution to noncontrolling interest	$ (19)					(19)
Ending balance, shares at Jun. 30, 2024	161,836						161,836
Ending balance, value at Jun. 30, 2024	$ 7,070,353	$ 4,439,489	$ 2,613,684	$ (827)	$ 7,053,964	$ 16,389		$ 1,618

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Condensed Consolidated Balance Sheets (Unaudited)(Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Receivables [Abstract]
Parenthetical - allowance for doubtful accounts	$ 39,720	$ 39,458

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Introduction and Basis of Presentation

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Introduction and Basis of Presentation

Introduction and Basis of Presentation

Certain acronyms and terms used throughout this Quarterly Report are specific to the Company, commonly used in the trucking industry, or are otherwise frequently used throughout this document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document.

Description of Business

Knight-Swift is a transportation solutions provider, headquartered in Phoenix, Arizona. During the year-to-date period ended June 30, 2024, the Company operated an average of 23,071 tractors (comprised of 20,913 company tractors and 2,158 independent contractor tractors) and 93,495 trailers within the Truckload segment and leasing activities within the non-reportable segments. The LTL segment operated an average of 3,393 tractors and 8,796 trailers. Additionally, the Intermodal segment operated an average of 611 tractors and 12,581 intermodal containers. As of June 30, 2024, the Company's four reportable segments were Truckload, LTL, Logistics, and Intermodal.

Basis of Presentation

The condensed consolidated financial statements and footnotes included in this Quarterly Report include the accounts of Knight-Swift Transportation Holdings Inc. and its subsidiaries and should be read in conjunction with the consolidated financial statements and footnotes included in Knight-Swift's 2023 Annual Report. In management's opinion, these condensed consolidated financial statements were prepared in accordance with GAAP and include all adjustments necessary (consisting of normal recurring adjustments) for the fair statement of the periods presented.

With respect to transactional/durational data, references to years pertain to calendar years. Similarly, references to quarters pertain to calendar quarters.

Note regarding comparability — The reported results do not include U.S. Xpress's operating results prior to its acquisition by the Company on July 1, 2023 in accordance with the accounting treatment applicable to the transaction. Accordingly, comparisons between the Company's current and prior period results may not be meaningful.

Seasonality

In the full truckload transportation industry, results of operations generally follow a seasonal pattern. Freight volumes in the first quarter are typically lower due to less consumer demand, customers reducing shipments following the holiday season, and inclement weather. At the same time, operating expenses generally increase, and tractor productivity of the Company's Truckload fleet, independent contractors and third-party carriers decreases during the winter months due to decreased fuel efficiency, increased cold weather-related equipment maintenance and repairs, and increased insurance claims and costs attributed to higher accident frequency from harsh weather. These factors typically lead to lower operating profitability, as compared to other parts of the year. Additionally, beginning in the latter half of the third quarter and continuing into the fourth quarter, the Company typically experiences surges pertaining to holiday shopping trends toward delivery of gifts purchased over the Internet, as well as the length of the holiday season (consumer shopping days between Thanksgiving and Christmas). However, as the Company continues to diversify its business through expansion into the LTL industry, warehousing, and other activities, seasonal volatility is becoming more tempered. Additionally, macroeconomic trends and cyclical changes in the trucking industry, including imbalances in supply and demand, can override the seasonality faced in the industry.

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Recently Issued Accounting Pronouncements

6 Months Ended

Jun. 30, 2024

Accounting Standards Update and Change in Accounting Principle [Abstract]

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

Date Issued	Reference	Description	Expected Adoption Date and Method	Financial Statement Impact
March 2024	ASU No. 2024-02: Codification Improvements - Amendments to Remove References to the Concepts Statements	The amendments in this ASU contain amendments to the Codification that remove references to various Concepts Statements. In most cases, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material
March 2024	ASU No. 2024-01: Compensation - Stock Compensation (Topic 718)	The amendments in this ASU improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material

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Acquisitions

6 Months Ended

Jun. 30, 2024

Business Combinations [Abstract]

Acquisitions

Acquisitions

Second quarter 2024 developments related to the Company's recent acquisitions are discussed below.

U.S. Xpress

On July 1, 2023, the Company acquired Chattanooga, Tennessee-based U.S. Xpress Enterprises, Inc. ("U.S. Xpress"), one of the largest asset-based truckload carriers in the United States.

During the quarter ended June 30, 2024, the Company's consolidated operating results included U.S. Xpress' total revenue of $405.6 million and a net loss of $13.3 million. U.S. Xpress' net loss during the quarter ended June 30, 2024 included $2.3 million related to the amortization of intangible assets acquired in the U.S. Xpress Acquisition.

For the year-to-date period ended June 30, 2024, the Company's consolidated operating results included U.S. Xpress' total revenue of $819.0 million and a net loss of $19.3 million. U.S. Xpress' net loss for the year-to-date period ended June 30, 2024 included $4.6 million related to the amortization of intangible assets acquired in the U.S. Xpress Acquisition.

Purchase Price Allocation

The purchase price was allocated based on estimated fair values of the assets and liabilities acquired as of the acquisition date. The purchase price allocation was open for adjustments through the end of the measurement period, which closed one year from the July 1, 2023 acquisition date.

	July 1, 2023 Opening Balance Sheet as Reported at December 31, 2023		Adjustments		July 1, 2023 Opening Balance Sheet as Reported at June 30, 2024
Fair value of the consideration transferred	$	632,109	$	—	$	632,109
Cash and cash equivalents	3,321		—		3,321
Receivables	216,659		345		217,004
Prepaid expenses	21,347		—		21,347
Other current assets	47,317		—		47,317
Property and equipment	433,210		—		433,210
Operating lease right-of-use assets	337,055		—		337,055
Identifiable intangible assets 1	348,000		—		348,000
Other noncurrent assets	28,457		—		28,457
Total assets	1,435,366		345		1,435,711
Accounts payable	(115,494)		(1,600)		(117,094)
Accrued payroll and payroll-related expenses	(27,485)		—		(27,485)
Accrued liabilities	(19,966)		(809)		(20,775)
Claims accruals – current and noncurrent portions	(180,251)		(11,650)		(191,901)
Operating lease liabilities – current and noncurrent portions	(376,763)		—		(376,763)
Long-term debt and finance leases – current and noncurrent portions	(337,949)		—		(337,949)
Deferred tax liabilities	(33,072)		9,942		(23,130)
Other long-term liabilities	(34,230)		(26,872)		(61,102)
Total liabilities	(1,125,210)		(30,989)		(1,156,199)
Noncontrolling interest	(391)		—		(391)
Total stockholders' equity	(391)		—		(391)
Goodwill	$	322,344	$	30,644	$	352,988

1    Includes $184.5 million in customer relationships and $163.5 million in trade names.

Pro Forma Information — The following unaudited pro forma information combines the historical operations of the Company and U.S. Xpress giving effect to the U.S. Xpress Acquisition, and related transactions as if consummated on January 1, 2023, the beginning of the comparative period presented.

	Quarter Ended June 30,		Year-to-Date June 30,
	2023		2023
	(In thousands, except per share data)
Total revenue	$	2,015,537	$	4,145,195
Net income attributable to Knight-Swift	34,790		112,938
Earnings per share – diluted	0.21		0.70

The unaudited pro forma condensed combined financial information has been presented for comparative purposes only and includes certain adjustments such as recognition of assets acquired at estimated fair values and related depreciation and amortization, elimination of transaction costs incurred by Knight-Swift and U.S. Xpress during the periods presented that were directly related to the U.S. Xpress Acquisition, and related income tax effects of these items. As a result of the U.S. Xpress Acquisition, both Knight-Swift and U.S. Xpress incurred certain acquisition-related expenses, including professional legal and advisory fees, acceleration of share-based compensation, bonus incentives, severance payments, filing fees and other miscellaneous expenses. These acquisition-related expenses totaled $20.7 million and $25.3 million during the quarter and year-to-date periods ended June 30, 2023. These expenses were eliminated in the presentation of the unaudited pro forma "Net income attributable to Knight-Swift" presented above.

The unaudited pro forma condensed combined financial information does not purport to represent the actual results of operations that Knight-Swift and U.S. Xpress would have achieved had the companies been combined during the periods presented in the unaudited pro forma condensed combined financial statements and is not intended to project the future results of operations that the combined company may achieve after the identified transactions. The unaudited pro forma condensed combined financial information does not reflect any cost savings that may be realized as a result of the U.S. Xpress Acquisition and also does not reflect any restructuring or integration-related costs to achieve those potential cost savings.

The Company did not complete any material acquisitions during the quarter ended June 30, 2024.

Subsequent to June 30, 2024, the Company acquired the remaining 18.5% non-controlling interest of Eleos.

Effective July 30, 2024, the Company, through a wholly owned subsidiary, acquired the operating assets and assumed certain liabilities of the regional less-than-truckload division of Dependable Highway Express, Inc. based in Los Angeles, California for total cash consideration of approximately $185 million funded by the 2021 Revolver. The Company has not completed the initial accounting for this transaction as it is still in the preliminary stages of assessing the fair value of the underlying tangible and intangible assets.

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Income Taxes

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

Effective Tax Rate — The quarter ended June 30, 2024 and June 30, 2023 effective tax rates were 37.2% and 25.9%, respectively. The year-to-date June 30, 2024 and June 30, 2023 effective tax rates were 32.4% and 24.7% respectively. The current quarter effective tax rate was primarily impacted by a reduction in pre-tax income.

Valuation Allowance — Valuation allowances are provided if, based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. As of June 30, 2024 and December 31, 2023, the Company has $10.4 million in valuation allowance associated with the capital loss and state operating loss carryforwards which may not be utilized in the future.

Unrecognized Tax Benefits — The Company has unrecognized tax benefits associated with tax credit carryforwards. Management does not expect a decrease in unrecognized tax benefits relating to credits to be necessary within the next twelve months.

Interest and Penalties — The Company did not have accrued interest and penalties related to unrecognized tax benefits as of June 30, 2024 and December 31, 2023.

Tax Examinations — Certain of the Company's subsidiaries are currently under examination by various Federal and state jurisdictions for tax years ranging from 2009 to 2022. At the completion of these examinations, management does not expect any adjustments which would have a material impact on the Company's effective tax rate. Years subsequent to 2018 remain subject to examination.

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Accounts Receivable Securitization

6 Months Ended

Jun. 30, 2024

Transfers and Servicing [Abstract]

Accounts Receivable Securitization

Accounts Receivable Securitization

On October 23, 2023, the Company entered into the 2023 RSA, which further amended the 2022 RSA. The 2023 RSA is a secured borrowing that is collateralized by the Company's eligible receivables, for which the Company is the servicing agent. The Company's receivable originator subsidiaries sell, on a revolving basis, undivided interests in all of their eligible accounts receivable to Swift Receivables Company II, LLC ("SRCII") who in turn sells a variable percentage ownership in those receivables to the various purchasers. The Company's eligible receivables are included in "Trade receivables, net of allowance for doubtful accounts" in the consolidated balance sheets. As of June 30, 2024, the Company's eligible receivables generally have high credit quality, as determined by the obligor's corporate credit rating.

The 2023 RSA is subject to fees, various affirmative and negative covenants, representations and warranties, and default and termination provisions customary for facilities of this type. The Company was in compliance with these covenants as of June 30, 2024. Collections on the underlying receivables by the Company are held for the benefit of SRCII and the various purchasers and are unavailable to satisfy claims of the Company and its subsidiaries.

The following table summarizes the key terms of the 2023 RSA (dollars in thousands):

	2023 RSA
	(Dollars in thousands)
Effective date	October 23, 2023
Final maturity date	October 1, 2025
Borrowing capacity	$575,000
Accordion option 1	$100,000
Unused commitment fee rate 2	20 to 40 basis points
Program fees on outstanding balances 3	one month SOFR + credit adjustment spread 10 basis points + 82.5 basis points

1The accordion option increases the maximum borrowing capacity, subject to participation of the purchasers.

2The commitment fee rates are based on the percentage of the maximum borrowing capacity utilized.

3As identified within the 2023 RSA, the lender can trigger an amendment by identifying and deciding upon a replacement index for SOFR.

Availability under the 2023 RSA is calculated as follows:

	June 30, 2024		December 31, 2023
	(In thousands)
Borrowing base, based on eligible receivables	$	479,900	$	527,600
Less: outstanding borrowings 1	(452,400)		(527,000)
Less: outstanding letters of credit	(27,167)		—
Availability under accounts receivable securitization facilities	$	333	$	600

1Outstanding borrowings are included in "Accounts receivable securitization" in the condensed consolidated balance sheets and are offset by deferred loan costs of $0.4 million and $0.5 million as of June 30, 2024 and December 31, 2023, respectively. Interest accrued on the aggregate principal balance at a rate of 6.3% as of June 30, 2024 and December 31, 2023.

Refer to Note 12 for information regarding the fair value of the 2023 RSA.

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Debt And Financing

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Debt and Financing

Debt and Financing

Other than the Company's accounts receivable securitization as discussed in Note 5, the Company's long-term debt consisted of the following:

	June 30, 2024		December 31, 2023
	(In thousands)
2021 Term Loan A-2, due September 3, 2024, net 1 2	199,975		199,902
2021 Term Loan A-3, due September 3, 2026, net 1 2	799,235		799,058
2023 Term Loan, due September 3, 2026, net 1 3	249,297		249,135
Revenue equipment installment notes 1 4	251,335		279,339
Prudential Notes, net 1	16,909		25,078
Other	7,195		8,567
Total long-term debt, including current portion	1,523,946		1,561,079
Less: current portion of long-term debt	(350,825)		(338,058)
Long-term debt, less current portion	$	1,173,121	$	1,223,021

	June 30, 2024		December 31, 2023
	(In thousands)
Total long-term debt, including current portion	$	1,523,946	$	1,561,079
2021 Revolver, due September 3, 2026 1 5	120,000		67,000
Long-term debt, including revolving line of credit	$	1,643,946	$	1,628,079

1Refer to Note 12 for information regarding the fair value of debt.

2As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

3As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amounts of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

4The revenue equipment installment loans were assumed at the close of the U.S. Xpress Acquisition and have a weighted average interest rate of 4.82% and 4.70% as of June 30, 2024 and December 31, 2023, respectively.

5The Company also had outstanding letters of credit of $18.1 million and $18.0 million under the 2021 Revolver, primarily related to workers' compensation and self-insurance liabilities for both June 30, 2024 and December 31, 2023, respectively. The Company also had outstanding letters of credit of $265.0 million and $264.3 million under a separate bilateral agreement which do not impact the availability of the 2021 Revolver as of June 30, 2024 and December 31, 2023, respectively.

Credit Agreements

2021 Debt Agreement — On September 3, 2021, the Company entered into the $2.3 billion 2021 Debt Agreement (an unsecured credit facility) with a group of banks, replacing the Company's prior debt agreements. The 2021 Debt Agreement included the 2021 Term Loan A-1 which was paid off on December 3, 2022. The following table presents the key terms of the 2021 Debt Agreement:

	2021 Term Loan A-2	2021 Term Loan A-3	2021 Revolver 2
2021 Debt Agreement Terms	(Dollars in thousands)
Maximum borrowing capacity	$200,000	$800,000	$1,100,000
Final maturity date	September 3, 2024	September 3, 2026	September 3, 2026
Interest rate margin reference rate	BSBY	BSBY	BSBY
Interest rate minimum margin 1	0.75%	0.88%	0.88%
Interest rate maximum margin 1	1.38%	1.50%	1.50%
Minimum principal payment — amount	$—	$10,000	$—
Minimum principal payment — frequency	Once	Quarterly	Once
Minimum principal payment — commencement date	September 3, 2024	September 30, 2024	September 3, 2026

1The interest rate margin for the 2021 Term Loans and 2021 Revolver is based on the Company's consolidated leverage ratio. As of June 30, 2024, interest accrued at 6.72% on the 2021 Term Loan A-2, 6.84% on the 2021 Term Loan A-3, and 6.84% on the 2021 Revolver.

2The commitment fee for the unused portion of the 2021 Revolver is based on the Company's consolidated leverage ratio, and ranges from 0.1% to 0.2%. As of June 30, 2024, commitment fees on the unused portion of the 2021 Revolver accrued at 0.2% and outstanding letter of credit fees accrued at 1.5%.

Pursuant to the 2021 Debt Agreement, the 2021 Revolver and the 2021 Term Loans contain certain financial covenants with respect to a maximum net leverage ratio and a minimum consolidated interest coverage ratio. The 2021 Debt Agreement provides flexibility regarding the use of proceeds from asset sales, payment of dividends, stock repurchases, and equipment financing. In addition to the financial covenants, the 2021 Debt Agreement includes usual and customary events of default for a facility of this nature and provides that, upon the occurrence and continuation of an event of default, payment of all amounts payable under the 2021 Debt Agreement may be accelerated, and the lenders' commitments may be terminated. The 2021 Debt Agreement contains certain usual and customary restrictions and covenants relating to, among other things, dividends (which are restricted only if a default or event of default occurs and is continuing or would result therefrom), liens, affiliate transactions, and other indebtedness. As of June 30, 2024, the Company was in compliance with the covenants under the 2021 Debt Agreement.

Borrowings under the 2021 Debt Agreement are made by Knight-Swift Transportation Holdings Inc. and are guaranteed by certain of the Company's material domestic subsidiaries (other than its captive insurance subsidiaries, driving academy subsidiary, and bankruptcy-remote special purpose subsidiary).

2023 Term Loan — On June 22, 2023, the Company entered into the $250.0 million 2023 Term Loan (an unsecured credit facility) with a group of banks. The 2023 Term Loan matures on September 3, 2026. There are no scheduled principal payments due until maturity. The 2023 Term Loan contains terms similar to the 2021 Debt Agreement. The proceeds received from the 2023 Term Loan were used to pay fees, commissions and expenses in connection with the Company's acquisition of U.S. Xpress. The interest rate applicable to the 2023 Term Loan is subject to a leverage-based grid and as of June 30, 2024 is equal to SOFR plus the 0.1% SOFR adjustment plus 1.50%. As of June 30, 2024, interest accrued at 7.17% on the 2023 Term Loan.

U.S. Xpress's Revenue Equipment Installment Notes — In connection with the U.S. Xpress Acquisition, the Company assumed revenue equipment installment notes with various lenders to finance tractors and trailers. Payments are due in monthly installments with final maturities at various dates through March 15, 2028, and the notes are secured by related revenue equipment with a net book value of $217.0 million as of June 30, 2024. Payment terms generally range from 36 months to 84 months. The interest rates as of June 30, 2024 range from 2.0% to 5.3%.

2021 Prudential Notes — The 2021 Prudential Notes previously allowed ACT to borrow up to $125 million, less amounts currently outstanding with Prudential Capital Group, provided that certain financial ratios are maintained. The 2021 Prudential Notes have interest rates ranging from 4.05% to 4.40% and various maturity dates ranging from January 2025 through January 2028. The 2021 Prudential Notes are unsecured and contain usual and customary restrictions on, among other things, the ability to make certain payments to stockholders, similar to the provisions of the Company's 2021 Debt Agreement. As of June 30, 2024, the Company was in compliance with the covenants under the 2021 Prudential Notes.

Fair Value Measurement — See Note 12 for fair value disclosures regarding the Company's debt instruments.

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Defined Benefit Pension Plan

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

Defined Benefit Pension Plan

Defined Benefit Pension Plan

Net periodic pension income and benefits paid during the quarter ended June 30, 2024 and 2023 were immaterial.

Assumptions

A weighted-average discount rate of 5.25% was used to determine benefit obligations as of June 30, 2024.

The following weighted-average assumptions were used to determine net periodic pension cost:

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Discount rate	5.03	%	4.65	%	4.86	%	4.76	%
Expected long-term rate of return on pension plan assets	6.00	%	6.00	%	6.00	%	6.00	%

Refer to Note 12 for additional information regarding fair value measurements of the Company's investments.

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Purchase Commitments

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Purchase Commitments

Purchase Commitments

As of June 30, 2024, the Company had outstanding commitments to purchase revenue equipment of $418.7 million in the remainder of 2024 ($368.4 million of which were tractor commitments), and none thereafter. These purchases may be financed through any combination of finance leases, operating leases, debt, proceeds from sales of existing equipment, and cash flows from operations.

As of June 30, 2024, the Company had outstanding commitments to purchase facilities and non-revenue equipment of $56.8 million in the remainder of 2024, $63.6 million from 2025 through 2026, $1.9 million from 2027 through 2028, and none thereafter. Factors such as costs and opportunities for future terminal expansions may change the amount of such expenditures.

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Contingencies and Legal Proceedings

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Contingencies and Legal Proceedings

Contingencies and Legal Proceedings

Legal Proceedings

The Company is party to certain legal proceedings incidental to its business. The majority of these claims relate to bodily injury, property damage, cargo and workers' compensation incurred in the transportation of freight, as well as certain class action litigation related to personnel and employment matters. We record a liability when we believe that it is probable that a loss has been incurred and the amount can be reasonably estimated.

Based on our present knowledge of the facts and, in certain cases, advice of outside counsel, management believes the resolution of open claims and pending litigation, taking into account existing reserves, is not likely to have a materially adverse impact on our condensed consolidated financial statements. However, any future claims or adverse developments in existing claims could impact this analysis. There are inherent uncertainties in these legal matters, some of which are beyond management's control, making the ultimate outcomes difficult to predict. Moreover, management's views and estimates related to these matters may change in the future, as new events and circumstances arise and the matters continue to develop. Cash flows or results of operations could be materially affected in any particular period by the resolution of one or more of these contingencies.

The Company has made accruals with respect to its legal matters where appropriate, as well as legal fees which are included in "Accrued liabilities" in the condensed consolidated balance sheets. The Company has recorded an aggregate accrual of approximately $6.6 million, relating to the Company's outstanding legal proceedings as of June 30, 2024.

Commutation of Third-Party Carrier Insurance Risk

On February 14, 2024, the Company finalized the terms of a transaction with the insurer under the third-party reinsurance agreement covering auto liability associated with the Company's third-party carrier insurance business. The agreement effectively transferred $161.1 million in third-party auto liability insurance claim liabilities to the insurer for policy periods from October 1, 2020 through March 31, 2023 funded by transferring the corresponding restricted cash held in trust for payment of the third-party insurance claims.

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Share Repurchase Plans

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Share Repurchase Plans

Share Repurchase Plans

In April 2022, the Company announced that the Board approved the repurchase of up to $350.0 million of the Company's outstanding common stock (the "2022 Knight-Swift Share Repurchase Plan"). With the adoption of the 2022 Knight-Swift Share Repurchase Plan, the Company terminated the 2020 Knight-Swift Share Repurchase Plan, which had approximately $42.8 million of authorized purchases remaining upon termination.

The Company made no share repurchases during the quarter and year-to-date periods ended June 30, 2024 and 2023.no

As of June 30, 2024 and December 31, 2023, the Company had $200.0 million remaining under the 2022 Knight-Swift Share Repurchase Plan.

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Weighted Average Shares Outstanding

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Weighted Average Shares Outstanding

Weighted Average Shares Outstanding

Earnings per share, basic and diluted, as presented in the condensed consolidated statements of comprehensive income, are calculated by dividing net income attributable to Knight-Swift by the respective weighted average common shares outstanding during the period.

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding:

	Quarter Ended June 30,		Year-to-Date June 30,
	2024	2023	2024	2023
	(In thousands)
Basic weighted average common shares outstanding	161,689	161,116	161,598	161,018
Dilutive effect of equity awards	422	824	491	899
Diluted weighted average common shares outstanding	162,111	161,940	162,089	161,917
Anti-dilutive shares excluded from earnings per diluted share 1	525	110	378	61

1    Shares were excluded from the dilutive-effect calculation because the outstanding awards' exercise prices were greater than the average market price of the Company's common stock for the periods presented.

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Fair Value Measurement

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurement

Fair Value Measurement

The following table presents the carrying amounts and estimated fair values of the Company's major categories of financial assets and liabilities:

		June 30, 2024				December 31, 2023
	Condensed Consolidated Balance Sheets Caption	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
		(In thousands)
Financial Assets:
Equity method investments	Other long-term assets	$	120,161	$	120,161	$	102,252	$	102,252
Financial Liabilities:
2021 Term Loan A-2, due September 2024 1	Finance lease liabilities and long-term debt – current portion	199,975		200,000		199,902		200,000
2021 Term Loan A-3, due September 2026 1	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	799,235		800,000		799,058		800,000
2023 Term Loan, due September 2026 2	Long-term debt – less current portion	249,297		250,000		249,135		250,000
2021 Revolver, due September 2026	Revolving line of credit	120,000		120,000		67,000		67,000
Revenue equipment installment notes 3	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	251,335		251,335		279,339		279,339
2021 Prudential Notes 4	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	16,909		16,925		25,078		25,100
2023 RSA, due October 2025 5	Accounts receivable securitization -less current portion	452,039		452,400		526,508		527,000
Mandatorily redeemable contingent consideration 6	Accrued liabilities	134,107		134,107		134,107		134,107
Contingent consideration 6	Accrued liabilities, Other long-term liabilities	40,859		40,859		40,859		40,859

1As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

2As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amount of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

3As of June 30, 2024, the carrying amount of the revenue equipment installment notes included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the revenue equipment installment notes included $1.3 million in fair value adjustments.

4As of June 30, 2024, the carrying amount of the 2021 Prudential Notes was net of approximately $16,000 in deferred loan costs and included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the 2021 Prudential Notes was net of $22,000 in deferred loan costs and included $1.1 million in fair value adjustments.

5The carrying amount of the 2023 RSA was net of $0.4 million and $0.5 million in deferred loan costs as of June 30, 2024 and December 31, 2023, respectively.

6The contingent consideration is primarily related to the U.S. Xpress Acquisition.

Recurring Fair Value Measurements (Assets) — As of June 30, 2024 and December 31, 2023, there were no major categories of assets estimated at fair value that were measured on a recurring basis.

Recurring Fair Value Measurements (Liabilities) — The following table depicts the level in the fair value hierarchy of the inputs used to estimate the fair value of liabilities measured on a recurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Gain (Loss)
	(In thousands)
As of June 30, 2024
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	—
As of December 31, 2023
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	3,359

1Contingent consideration is associated with the U.S. Xpress Acquisition and certain other investments. The Company did not recognize any gains (losses) in the quarter and year-to-date periods ended June 30, 2024.The Company recognized a gain of $2.5 million during the quarter and year-to-date periods ended June 30, 2023.

Nonrecurring Fair Value Measurements (Assets) — The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Loss
	(In thousands)
As of June 30, 2024
Buildings 1	$	—	$	—	$	—	$	—	$	(288)
Operating lease right-of-use assets 2	$	—	$	—	$	—	$	—	$	(5,300)
Equipment 3	$	—	$	—	$	—	$	—	$	(4,271)
As of December 31, 2023
Buildings 1	$	—	$	—	$	—	$	—	$	(187)
Equipment 3	$	—	$	—	$	—	$	—	$	(469)
Software 4	$	—	$	—	$	—	$	—	$	(1,580)

1    Reflects the non-cash impairment of building improvements (within the Truckload segment and the All Other Segments).

2    Reflects the non-cash impairment related to the market value of a facility lease (within the Truckload Segment).

3    Reflects the non-cash impairment of certain revenue equipment held for sale and other equipment (within the Truckload segment and the All Other Segments).

4    Reflects the non-cash impairment of software (within the All Other Segments).

Nonrecurring Fair Value Measurements (Liabilities) — As of June 30, 2024 and December 31, 2023, the Company had no major categories of liabilities estimated at fair value that were measured on a nonrecurring basis.

Gain on Sale of Revenue Equipment — Net gains on disposals, including disposals of property and equipment classified as assets held for sale, are reported in "Miscellaneous operating expenses" in the condensed consolidated statements of comprehensive income. The Company recorded net gains on disposals of:

•$6.0 million and $14.3 million for the quarters ended June 30, 2024 and 2023, respectively.

•$12.6 million and $35.2 million for the year-to-date periods ended June 30, 2024 and 2023 respectively.

Fair Value of Pension Plan Assets — The following table sets forth by level the fair value hierarchy of ACT's pension plan financial assets accounted for at fair value on a recurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. ACT's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels.

			Fair Value Measurements at Reporting Date Using:
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In thousands)
As of June 30, 2024
Fixed income funds	32,800		32,800		—		—
Cash and cash equivalents	983		983		—		—
Total pension plan assets	$	33,783	$	33,783	$	—	$	—
As of December 31, 2023
Fixed income funds	34,536		34,536		—		—
Cash and cash equivalents	887		887		—		—
Total pension plan assets	$	35,423	$	35,423	$	—	$	—

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Related Party Transactions

6 Months Ended

Jun. 30, 2024

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

	Quarter Ended June 30,								Year-to-Date June 30,
	2024				2023				2024				2023
	Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift
	(In thousands)
Facility and Equipment Leases	$	250	$	141	$	—	$	21	$	447	$	291	$	—	$	46
Other Services	$	—	$	8	$	—	$	259	$	—	$	17	$	27	$	393

	June 30, 2024				December 31, 2023
	Receivable		Payable		Receivable		Payable
	(In thousands)
Certain affiliates 1	$	—	$	162	$	23	$	37

1"Certain affiliates" includes entities that are associated with various board members and executives and require approval by the Audit Committee of the Board prior to completing transactions. Transactions with these entities generally include facility and equipment leases, equipment sales, and other services.

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Information by Segment and Geography

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Information by Segment and Geography

Financial Information by Segment and Geography

Segment Information

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Revenue:	(In thousands)
Truckload	$	1,264,237	$	953,659	$	2,527,252	$	1,965,904
LTL	306,478		267,105		588,600		522,409
Logistics	131,700		119,943		258,429		258,226
Intermodal	97,528		104,327		185,513		214,899
Subtotal	$	1,799,943	$	1,445,034	$	3,559,794	$	2,961,438
All Other Segments	68,279		130,110		153,358		272,096
Intersegment eliminations	(21,568)		(22,165)		(44,031)		(43,623)
Total revenue	$	1,846,654	$	1,552,979	$	3,669,121	$	3,189,911

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Operating income (loss):	(In thousands)
Truckload	$	23,483	$	67,911	$	46,630	$	183,810
LTL	33,049		30,238		53,336		56,820
Logistics	4,759		9,566		7,232		22,386
Intermodal	(1,717)		(6,632)		(6,625)		(1,530)
Subtotal	$	59,574	$	101,083	$	100,573	$	261,486
All Other Segments 1	3,886		(7,053)		(16,558)		(22,669)
Operating income	$	63,460	$	94,030	$	84,015	$	238,817

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Depreciation and amortization of property and equipment:	(In thousands)
Truckload	$	136,952	$	116,430	$	276,945	$	233,232
LTL	18,995		16,820		37,094		33,008
Logistics	979		987		1,930		2,030
Intermodal	5,554		4,777		11,010		9,209
Subtotal	$	162,480	$	139,014	$	326,979	$	277,479
All Other Segments	16,370		17,367		33,736		34,868
Depreciation and amortization of property and equipment	$	178,850	$	156,381	$	360,715	$	312,347

1The year-to-date $16.6 million operating loss within our All Other Segments is primarily driven by the $16.3 million operating loss in the third-party insurance business.

Geographical Information

In the aggregate, total revenue from the Company's international operations was less than 5.0% of consolidated total revenue for the quarter and year-to-date periods ended June 30, 2024 and 2023. Additionally, long-lived assets on the Company's international subsidiary balance sheets were less than 5.0% of consolidated total assets as of June 30, 2024 and December 31, 2023.

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Introduction and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	In management's opinion, these condensed consolidated financial statements were prepared in accordance with GAAP and include all adjustments necessary (consisting of normal recurring adjustments) for the fair statement of the periods presented.

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Recently Issued Accounting Pronouncements (Tables)

6 Months Ended

Jun. 30, 2024

Accounting Standards Update and Change in Accounting Principle [Abstract]

Recently Issued Accounting Pronouncements

Date Issued	Reference	Description	Expected Adoption Date and Method	Financial Statement Impact
March 2024	ASU No. 2024-02: Codification Improvements - Amendments to Remove References to the Concepts Statements	The amendments in this ASU contain amendments to the Codification that remove references to various Concepts Statements. In most cases, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material
March 2024	ASU No. 2024-01: Compensation - Stock Compensation (Topic 718)	The amendments in this ASU improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718.	January 2025, Prospective or retrospective	Currently under evaluation, but not expected to be material

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Acquisitions (Tables)

6 Months Ended

Jun. 30, 2024

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The purchase price was allocated based on estimated fair values of the assets and liabilities acquired as of the acquisition date. The purchase price allocation was open for adjustments through the end of the measurement period, which closed one year from the July 1, 2023 acquisition date.

	July 1, 2023 Opening Balance Sheet as Reported at December 31, 2023		Adjustments		July 1, 2023 Opening Balance Sheet as Reported at June 30, 2024
Fair value of the consideration transferred	$	632,109	$	—	$	632,109
Cash and cash equivalents	3,321		—		3,321
Receivables	216,659		345		217,004
Prepaid expenses	21,347		—		21,347
Other current assets	47,317		—		47,317
Property and equipment	433,210		—		433,210
Operating lease right-of-use assets	337,055		—		337,055
Identifiable intangible assets 1	348,000		—		348,000
Other noncurrent assets	28,457		—		28,457
Total assets	1,435,366		345		1,435,711
Accounts payable	(115,494)		(1,600)		(117,094)
Accrued payroll and payroll-related expenses	(27,485)		—		(27,485)
Accrued liabilities	(19,966)		(809)		(20,775)
Claims accruals – current and noncurrent portions	(180,251)		(11,650)		(191,901)
Operating lease liabilities – current and noncurrent portions	(376,763)		—		(376,763)
Long-term debt and finance leases – current and noncurrent portions	(337,949)		—		(337,949)
Deferred tax liabilities	(33,072)		9,942		(23,130)
Other long-term liabilities	(34,230)		(26,872)		(61,102)
Total liabilities	(1,125,210)		(30,989)		(1,156,199)
Noncontrolling interest	(391)		—		(391)
Total stockholders' equity	(391)		—		(391)
Goodwill	$	322,344	$	30,644	$	352,988

1    Includes $184.5 million in customer relationships and $163.5 million in trade names.

Business Acquisition, Pro Forma Information

The following unaudited pro forma information combines the historical operations of the Company and U.S. Xpress giving effect to the U.S. Xpress Acquisition, and related transactions as if consummated on January 1, 2023, the beginning of the comparative period presented.

	Quarter Ended June 30,		Year-to-Date June 30,
	2023		2023
	(In thousands, except per share data)
Total revenue	$	2,015,537	$	4,145,195
Net income attributable to Knight-Swift	34,790		112,938
Earnings per share – diluted	0.21		0.70

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Accounts Receivable Securitization (Tables)

6 Months Ended

Jun. 30, 2024

Transfers and Servicing [Abstract]

Schedule of Servicing Liabilities at Fair Value [Table Text Block]

The following table summarizes the key terms of the 2023 RSA (dollars in thousands):

	2023 RSA
	(Dollars in thousands)
Effective date	October 23, 2023
Final maturity date	October 1, 2025
Borrowing capacity	$575,000
Accordion option 1	$100,000
Unused commitment fee rate 2	20 to 40 basis points
Program fees on outstanding balances 3	one month SOFR + credit adjustment spread 10 basis points + 82.5 basis points

1The accordion option increases the maximum borrowing capacity, subject to participation of the purchasers.

2The commitment fee rates are based on the percentage of the maximum borrowing capacity utilized.

3As identified within the 2023 RSA, the lender can trigger an amendment by identifying and deciding upon a replacement index for SOFR.

Availability under the 2023 RSA is calculated as follows:

	June 30, 2024		December 31, 2023
	(In thousands)
Borrowing base, based on eligible receivables	$	479,900	$	527,600
Less: outstanding borrowings 1	(452,400)		(527,000)
Less: outstanding letters of credit	(27,167)		—
Availability under accounts receivable securitization facilities	$	333	$	600

1Outstanding borrowings are included in "Accounts receivable securitization" in the condensed consolidated balance sheets and are offset by deferred loan costs of $0.4 million and $0.5 million as of June 30, 2024 and December 31, 2023, respectively. Interest accrued on the aggregate principal balance at a rate of 6.3% as of June 30, 2024 and December 31, 2023.

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Debt And Financing (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of Debt Balances by Instrument

Other than the Company's accounts receivable securitization as discussed in Note 5, the Company's long-term debt consisted of the following:

	June 30, 2024		December 31, 2023
	(In thousands)
2021 Term Loan A-2, due September 3, 2024, net 1 2	199,975		199,902
2021 Term Loan A-3, due September 3, 2026, net 1 2	799,235		799,058
2023 Term Loan, due September 3, 2026, net 1 3	249,297		249,135
Revenue equipment installment notes 1 4	251,335		279,339
Prudential Notes, net 1	16,909		25,078
Other	7,195		8,567
Total long-term debt, including current portion	1,523,946		1,561,079
Less: current portion of long-term debt	(350,825)		(338,058)
Long-term debt, less current portion	$	1,173,121	$	1,223,021

	June 30, 2024		December 31, 2023
	(In thousands)
Total long-term debt, including current portion	$	1,523,946	$	1,561,079
2021 Revolver, due September 3, 2026 1 5	120,000		67,000
Long-term debt, including revolving line of credit	$	1,643,946	$	1,628,079

1Refer to Note 12 for information regarding the fair value of debt.

2As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

3As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amounts of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

4The revenue equipment installment loans were assumed at the close of the U.S. Xpress Acquisition and have a weighted average interest rate of 4.82% and 4.70% as of June 30, 2024 and December 31, 2023, respectively.

5The Company also had outstanding letters of credit of $18.1 million and $18.0 million under the 2021 Revolver, primarily related to workers' compensation and self-insurance liabilities for both June 30, 2024 and December 31, 2023, respectively. The Company also had outstanding letters of credit of $265.0 million and $264.3 million under a separate bilateral agreement which do not impact the availability of the 2021 Revolver as of June 30, 2024 and December 31, 2023, respectively.

Schedule of Long-term Debt Instruments

The following table presents the key terms of the 2021 Debt Agreement:

	2021 Term Loan A-2	2021 Term Loan A-3	2021 Revolver 2
2021 Debt Agreement Terms	(Dollars in thousands)
Maximum borrowing capacity	$200,000	$800,000	$1,100,000
Final maturity date	September 3, 2024	September 3, 2026	September 3, 2026
Interest rate margin reference rate	BSBY	BSBY	BSBY
Interest rate minimum margin 1	0.75%	0.88%	0.88%
Interest rate maximum margin 1	1.38%	1.50%	1.50%
Minimum principal payment — amount	$—	$10,000	$—
Minimum principal payment — frequency	Once	Quarterly	Once
Minimum principal payment — commencement date	September 3, 2024	September 30, 2024	September 3, 2026

1The interest rate margin for the 2021 Term Loans and 2021 Revolver is based on the Company's consolidated leverage ratio. As of June 30, 2024, interest accrued at 6.72% on the 2021 Term Loan A-2, 6.84% on the 2021 Term Loan A-3, and 6.84% on the 2021 Revolver.

2The commitment fee for the unused portion of the 2021 Revolver is based on the Company's consolidated leverage ratio, and ranges from 0.1% to 0.2%. As of June 30, 2024, commitment fees on the unused portion of the 2021 Revolver accrued at 0.2% and outstanding letter of credit fees accrued at 1.5%.

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Defined Benefit Pension Plan (Tables)

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

Defined Benefit Plan, Assumptions

The following weighted-average assumptions were used to determine net periodic pension cost:

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Discount rate	5.03	%	4.65	%	4.86	%	4.76	%
Expected long-term rate of return on pension plan assets	6.00	%	6.00	%	6.00	%	6.00	%

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Weighted Average Shares Outstanding (Tables)

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Share Attributable To Stockholders

The following table reconciles basic weighted average shares outstanding to diluted weighted average shares outstanding:

	Quarter Ended June 30,		Year-to-Date June 30,
	2024	2023	2024	2023
	(In thousands)
Basic weighted average common shares outstanding	161,689	161,116	161,598	161,018
Dilutive effect of equity awards	422	824	491	899
Diluted weighted average common shares outstanding	162,111	161,940	162,089	161,917
Anti-dilutive shares excluded from earnings per diluted share 1	525	110	378	61

1    Shares were excluded from the dilutive-effect calculation because the outstanding awards' exercise prices were greater than the average market price of the Company's common stock for the periods presented.

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Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value by Balance Sheet Grouping

The following table presents the carrying amounts and estimated fair values of the Company's major categories of financial assets and liabilities:

		June 30, 2024				December 31, 2023
	Condensed Consolidated Balance Sheets Caption	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
		(In thousands)
Financial Assets:
Equity method investments	Other long-term assets	$	120,161	$	120,161	$	102,252	$	102,252
Financial Liabilities:
2021 Term Loan A-2, due September 2024 1	Finance lease liabilities and long-term debt – current portion	199,975		200,000		199,902		200,000
2021 Term Loan A-3, due September 2026 1	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	799,235		800,000		799,058		800,000
2023 Term Loan, due September 2026 2	Long-term debt – less current portion	249,297		250,000		249,135		250,000
2021 Revolver, due September 2026	Revolving line of credit	120,000		120,000		67,000		67,000
Revenue equipment installment notes 3	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	251,335		251,335		279,339		279,339
2021 Prudential Notes 4	Finance lease liabilities and long-term debt – current portion, Long-term debt – less current portion	16,909		16,925		25,078		25,100
2023 RSA, due October 2025 5	Accounts receivable securitization -less current portion	452,039		452,400		526,508		527,000
Mandatorily redeemable contingent consideration 6	Accrued liabilities	134,107		134,107		134,107		134,107
Contingent consideration 6	Accrued liabilities, Other long-term liabilities	40,859		40,859		40,859		40,859

1As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

2As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amount of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

3As of June 30, 2024, the carrying amount of the revenue equipment installment notes included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the revenue equipment installment notes included $1.3 million in fair value adjustments.

4As of June 30, 2024, the carrying amount of the 2021 Prudential Notes was net of approximately $16,000 in deferred loan costs and included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the 2021 Prudential Notes was net of $22,000 in deferred loan costs and included $1.1 million in fair value adjustments.

5The carrying amount of the 2023 RSA was net of $0.4 million and $0.5 million in deferred loan costs as of June 30, 2024 and December 31, 2023, respectively.

6The contingent consideration is primarily related to the U.S. Xpress Acquisition.

Recurring Fair Value Measurements (Liabilities)

The following table depicts the level in the fair value hierarchy of the inputs used to estimate the fair value of liabilities measured on a recurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Gain (Loss)
	(In thousands)
As of June 30, 2024
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	—
As of December 31, 2023
Mandatorily redeemable contingent consideration 1	$	134,107	$	—	$	—	$	134,107	$	—
Contingent consideration 1	$	40,859	$	—	$	—	$	40,859	$	3,359

1Contingent consideration is associated with the U.S. Xpress Acquisition and certain other investments. The Company did not recognize any gains (losses) in the quarter and year-to-date periods ended June 30, 2024.The Company recognized a gain of $2.5 million during the quarter and year-to-date periods ended June 30, 2023.

Nonrecurring Fair Value Measurements (Assets)

The following table depicts the level in the fair value hierarchy of the inputs used to estimate fair value of assets measured on a nonrecurring basis as of June 30, 2024 and December 31, 2023:

			Fair Value Measurements at Reporting Date Using
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs		Total Loss
	(In thousands)
As of June 30, 2024
Buildings 1	$	—	$	—	$	—	$	—	$	(288)
Operating lease right-of-use assets 2	$	—	$	—	$	—	$	—	$	(5,300)
Equipment 3	$	—	$	—	$	—	$	—	$	(4,271)
As of December 31, 2023
Buildings 1	$	—	$	—	$	—	$	—	$	(187)
Equipment 3	$	—	$	—	$	—	$	—	$	(469)
Software 4	$	—	$	—	$	—	$	—	$	(1,580)

1    Reflects the non-cash impairment of building improvements (within the Truckload segment and the All Other Segments).

2    Reflects the non-cash impairment related to the market value of a facility lease (within the Truckload Segment).

3    Reflects the non-cash impairment of certain revenue equipment held for sale and other equipment (within the Truckload segment and the All Other Segments).

4    Reflects the non-cash impairment of software (within the All Other Segments).

Recurring Fair Value Measurements (Assets)

The following table sets forth by level the fair value hierarchy of ACT's pension plan financial assets accounted for at fair value on a recurring basis. Assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. ACT's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the valuation of fair value assets and their placement within the fair value hierarchy levels.

			Fair Value Measurements at Reporting Date Using:
	Estimated Fair Value		Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(In thousands)
As of June 30, 2024
Fixed income funds	32,800		32,800		—		—
Cash and cash equivalents	983		983		—		—
Total pension plan assets	$	33,783	$	33,783	$	—	$	—
As of December 31, 2023
Fixed income funds	34,536		34,536		—		—
Cash and cash equivalents	887		887		—		—
Total pension plan assets	$	35,423	$	35,423	$	—	$	—

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Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 2024

Related Party Transactions [Abstract]

Related Party Transactions

	Quarter Ended June 30,								Year-to-Date June 30,
	2024				2023				2024				2023
	Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift		Provided by Knight-Swift		Received by Knight-Swift
	(In thousands)
Facility and Equipment Leases	$	250	$	141	$	—	$	21	$	447	$	291	$	—	$	46
Other Services	$	—	$	8	$	—	$	259	$	—	$	17	$	27	$	393

	June 30, 2024				December 31, 2023
	Receivable		Payable		Receivable		Payable
	(In thousands)
Certain affiliates 1	$	—	$	162	$	23	$	37

1"Certain affiliates" includes entities that are associated with various board members and executives and require approval by the Audit Committee of the Board prior to completing transactions. Transactions with these entities generally include facility and equipment leases, equipment sales, and other services.

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Information by Segment and Geography (Tables)

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Summary Of Financial Information By Segments

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Revenue:	(In thousands)
Truckload	$	1,264,237	$	953,659	$	2,527,252	$	1,965,904
LTL	306,478		267,105		588,600		522,409
Logistics	131,700		119,943		258,429		258,226
Intermodal	97,528		104,327		185,513		214,899
Subtotal	$	1,799,943	$	1,445,034	$	3,559,794	$	2,961,438
All Other Segments	68,279		130,110		153,358		272,096
Intersegment eliminations	(21,568)		(22,165)		(44,031)		(43,623)
Total revenue	$	1,846,654	$	1,552,979	$	3,669,121	$	3,189,911

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Operating income (loss):	(In thousands)
Truckload	$	23,483	$	67,911	$	46,630	$	183,810
LTL	33,049		30,238		53,336		56,820
Logistics	4,759		9,566		7,232		22,386
Intermodal	(1,717)		(6,632)		(6,625)		(1,530)
Subtotal	$	59,574	$	101,083	$	100,573	$	261,486
All Other Segments 1	3,886		(7,053)		(16,558)		(22,669)
Operating income	$	63,460	$	94,030	$	84,015	$	238,817

	Quarter Ended June 30,				Year-to-Date June 30,
	2024		2023		2024		2023
Depreciation and amortization of property and equipment:	(In thousands)
Truckload	$	136,952	$	116,430	$	276,945	$	233,232
LTL	18,995		16,820		37,094		33,008
Logistics	979		987		1,930		2,030
Intermodal	5,554		4,777		11,010		9,209
Subtotal	$	162,480	$	139,014	$	326,979	$	277,479
All Other Segments	16,370		17,367		33,736		34,868
Depreciation and amortization of property and equipment	$	178,850	$	156,381	$	360,715	$	312,347

1The year-to-date $16.6 million operating loss within our All Other Segments is primarily driven by the $16.3 million operating loss in the third-party insurance business.

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Introduction and Basis of Presentation (Details)	6 Months Ended
	Jun. 30, 2024 Vehicle Segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of operational tractors in fleet	23,071
Number of company tractors	20,913
Number of independent contractor tractors	2,158
Number of trailers	93,495
Number of LTL tractors	3,393
Number of LTL trailers	8,796
Number of intermodal tractors	611
Number of intermodal containers	12,581
Number of reportable segments | Segment	4

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Recently Issued Accounting Pronouncements (Details)	6 Months Ended
	Jun. 30, 2024
Accounting Standards Update 2024-02
Recently Issued Accounting Pronouncements [Line Items]
New Accounting Pronouncement or change in Accounting Principle, Description	The amendments in this ASU contain amendments to the Codification that remove references to various Concepts Statements. In most cases, the references are extraneous and not required to understand or apply the guidance. In other instances, the references were used in prior Statements to provide guidance in certain topical areas.
New Accounting Pronouncement Adoption Method and Date	January 2025, Prospective or retrospective
New Accounting Pronouncement Financial Statement Impact	Currently under evaluation, but not expected to be material
Accounting Standards Update 2024-01
Recently Issued Accounting Pronouncements [Line Items]
New Accounting Pronouncement or change in Accounting Principle, Description	The amendments in this ASU improve GAAP by adding an illustrative example that includes four fact patterns to demonstrate how an entity should apply the scope guidance in paragraph 718-10-15-3 to determine whether a profits interest award should be accounted for in accordance with Topic 718.
New Accounting Pronouncement Adoption Method and Date	January 2025, Prospective or retrospective
New Accounting Pronouncement Financial Statement Impact	Currently under evaluation, but not expected to be material

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Acquisitions - Narrative (Details) - USD ($) $ in Thousands					3 Months Ended		6 Months Ended
	Jul. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Jul. 01, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jul. 17, 2024
Business Acquisition [Line Items]
Total revenue					$ 1,846,654	$ 1,552,979	$ 3,669,121	$ 3,189,911
Net income					19,893	62,904	16,900	166,617
Amortization of Intangible Assets					18,544	16,505	37,087	32,688
U.S. Xpress
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition				Jul. 01, 2023
Total revenue					405,600		819,000
Net income					(13,300)		(19,300)
Amortization of Intangible Assets					$ 2,300		$ 4,600
Business Combination, Acquisition Related Costs						$ 20,700		$ 25,300
Fair value of the consideration transferred		$ 632,109	$ 632,109
Eleos | Subsequent Event [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired									18.50%
DHE | Subsequent Event [Member]
Business Acquisition [Line Items]
Fair value of the consideration transferred	$ 185,000

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Acquisitions - Tables (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		6 Months Ended
		Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Business Acquisition [Line Items]
Noncontrolling interest				$ (743)	$ (741)	$ (1,473)	$ (1,716)
Goodwill		$ 3,879,442	$ 3,848,798	3,879,442		3,879,442
U.S. Xpress
Business Acquisition [Line Items]
Fair value of the consideration transferred		632,109	632,109
Cash and cash equivalents		3,321	3,321	3,321		3,321
Receivables		217,004	216,659	217,004		217,004
Prepaid expenses		21,347	21,347	21,347		21,347
Other current assets		47,317	47,317	47,317		47,317
Property and equipment		433,210	433,210	433,210		433,210
Operating lease right-of-use assets		337,055	337,055	337,055		337,055
Identifiable intangible assets 1	[1]	348,000	348,000	348,000		348,000
Other noncurrent assets		28,457	28,457	28,457		28,457
Total assets		1,435,711	1,435,366	1,435,711		1,435,711
Accounts payable		(117,094)	(115,494)	(117,094)		(117,094)
Accrued payroll and payroll-related expenses		(27,485)	(27,485)	(27,485)		(27,485)
Accrued liabilities		(20,775)	(19,966)	(20,775)		(20,775)
Claims accruals – current and noncurrent portions		(191,901)	(180,251)	(191,901)		(191,901)
Operating lease liabilities – current and noncurrent portions		(376,763)	(376,763)	(376,763)		(376,763)
Long-term debt and finance leases – current and noncurrent portions		(337,949)	(337,949)	(337,949)		(337,949)
Deferred Tax Liabilities		(23,130)	(33,072)	(23,130)		(23,130)
Other long-term liabilities		(61,102)	(34,230)	(61,102)		(61,102)
Total liabilities		(1,156,199)	(1,125,210)	(1,156,199)		(1,156,199)
Noncontrolling interest		(391)	(391)
Total stockholders' equity		(391)	(391)	(391)		(391)
Goodwill		352,988	$ 322,344	352,988		352,988
Trade names		163,500		163,500		163,500
Total revenue					2,015,537		4,145,195
Net income attributable to Knight-Swift					$ 34,790		$ 112,938
Earnings per share – diluted					$ 0.21		$ 0.70
U.S. Xpress | Revision of Prior Period, Adjustment [Member]
Business Acquisition [Line Items]
Fair value of the consideration transferred		0
Cash and cash equivalents		0		0		0
Receivables		345		345		345
Prepaid expenses		0		0		0
Other current assets		0		0		0
Property and equipment		0		0		0
Operating lease right-of-use assets		0		0		0
Identifiable intangible assets 1		0		0		0
Other noncurrent assets		0		0		0
Total assets		345		345		345
Accounts payable		(1,600)		(1,600)		(1,600)
Accrued payroll and payroll-related expenses		0		0		0
Accrued liabilities		(809)		(809)		(809)
Claims accruals – current and noncurrent portions		(11,650)		(11,650)		(11,650)
Operating lease liabilities – current and noncurrent portions		0		0		0
Long-term debt and finance leases – current and noncurrent portions		0		0		0
Deferred Tax Liabilities		9,942		9,942		9,942
Other long-term liabilities		(26,872)		(26,872)		(26,872)
Total liabilities		(30,989)		(30,989)		(30,989)
Noncontrolling interest		0
Total stockholders' equity		0		0		0
Goodwill		30,644		30,644		30,644
U.S. Xpress | Customer relationships [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets		$ 184,500		$ 184,500		$ 184,500

[1] Includes $184.5 million in customer relationships and $163.5 million in trade names.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Tax Contingency [Line Items]
Effective tax rate	37.20%	25.90%	32.40%	24.70%
Deferred Tax Assets, Valuation Allowance	$ 10.4		$ 10.4		$ 10.4
Accrued interest and penalties	$ 0.0		$ 0.0		$ 0.0
Year subject to examination	2018
State and Local Jurisdiction [Member] | Minimum [Member]
Income Tax Contingency [Line Items]
Year under income tax examination			2009
State and Local Jurisdiction [Member] | Maximum [Member]
Income Tax Contingency [Line Items]
Year under income tax examination			2022

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Accounts Receivable Securitization (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023	Oct. 23, 2023
Servicing Liabilities at Fair Value [Line Items]
Less: outstanding letters of credit		$ (265,000)	$ (264,300)
2023 RSA
Servicing Liabilities at Fair Value [Line Items]
Effective date				Oct. 23, 2023
Final maturity date				Oct. 01, 2025
Receivables Sales Agreement, Borrowing Capacity				$ 575,000
Accordion Option Accounts Receivable Securitization	[1]			$ 100,000
Unused commitment fee rate	[2]			20 to 40 basis points
Program fees on outstanding balances	[3]			one month SOFR + credit adjustment spread 10 basis points + 82.5 basis points
Borrowing base, based on eligible receivables		479,900	527,600
Accounts receivable securitization	[4]	(452,400)	(527,000)
Less: outstanding letters of credit		(27,167)	0
Availability under accounts receivable securitization facilities		333	600
Deferred loan costs		$ 400	$ 500
Debt Instrument, Interest Rate During Period		6.30%	6.30%

[1] The accordion option increases the maximum borrowing capacity, subject to participation of the purchasers.

[2] The commitment fee rates are based on the percentage of the maximum borrowing capacity utilized.

[3] As identified within the 2023 RSA, the lender can trigger an amendment by identifying and deciding upon a replacement index for SOFR.

[4] Outstanding borrowings are included in "Accounts receivable securitization" in the condensed consolidated balance sheets and are offset by deferred loan costs of $0.4 million and $0.5 million as of June 30, 2024 and December 31, 2023, respectively. Interest accrued on the aggregate principal balance at a rate of 6.3% as of June 30, 2024 and December 31, 2023.

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Debt And Financing (Details) - USD ($) $ in Thousands					6 Months Ended
		Jun. 30, 2024	Jun. 22, 2023	Sep. 03, 2021	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-Term Debt		$ 1,523,946			$ 1,523,946	$ 1,561,079
Less: current portion of long-term debt		(350,825)			(350,825)	(338,058)
Long-term debt – less current portion		1,173,121			1,173,121	1,223,021
Revolving line of credit		120,000			120,000	67,000
Long-term Debt		1,643,946			1,643,946	1,628,079
Letters of Credit Outstanding, Amount		265,000			265,000	264,300
2021 Term Loan A-2
Debt Instrument [Line Items]
Long-Term Debt	[1],[2]	199,975			199,975	199,902
Deferred loan costs		$ 25			25	100
Line of Credit Facility, Maximum Borrowing Capacity				$ 200,000
Final maturity date				Sep. 03, 2024
Program fees on outstanding balances				BSBY
Minimum principal payment — amount				$ 0
Minimum principal payment — frequency				Once
Minimum principal payment — commencement date				Sep. 03, 2024
Debt Instrument, Interest Rate During Period		6.72%
2021 Term Loan A-2 | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]			0.75%
2021 Term Loan A-2 | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]			1.38%
2021 Term Loan A-3
Debt Instrument [Line Items]
Long-Term Debt	[1],[2]	$ 799,235			799,235	799,058
Deferred loan costs		$ 800			800	900
Line of Credit Facility, Maximum Borrowing Capacity				$ 800,000
Final maturity date				Sep. 03, 2026
Program fees on outstanding balances				BSBY
Minimum principal payment — amount				$ 10,000
Minimum principal payment — frequency				Quarterly
Minimum principal payment — commencement date				Sep. 30, 2024
Debt Instrument, Interest Rate During Period		6.84%
2021 Term Loan A-3 | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]			0.88%
2021 Term Loan A-3 | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3]			1.50%
2023 Term Loan
Debt Instrument [Line Items]
Long-Term Debt	[2],[4]	$ 249,297			249,297	249,135
Deferred loan costs		$ 700			700	900
Line of Credit Facility, Maximum Borrowing Capacity			$ 250,000
Final maturity date			Sep. 03, 2026
Program fees on outstanding balances			SOFR
Debt Instrument, Interest Rate, Stated Percentage			1.50%
Minimum principal payment — amount			$ 0
Debt Instrument, Interest Rate During Period		7.17%
Debt Instrument, Basis Spread on Variable Rate			0.10%
2021 Prudential Notes
Debt Instrument [Line Items]
Long-Term Debt	[2]	$ 16,909			16,909	25,078
2021 Prudential Notes | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				4.05%
2021 Prudential Notes | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				4.40%
Other Debt
Debt Instrument [Line Items]
Secured Debt, Other		7,195			7,195	8,567
2021 Revolver
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount		$ 18,100			18,100	18,000
Line of Credit Facility, Maximum Borrowing Capacity	[5]			$ 1,100,000
Final maturity date	[5]			Sep. 03, 2026
Program fees on outstanding balances	[5]			BSBY
Minimum principal payment — amount	[5]			$ 0
Minimum principal payment — frequency	[5]			Once
Minimum principal payment — commencement date	[5]			Sep. 03, 2026
Debt Instrument, Interest Rate During Period		6.84%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.20%
Line of Credit Facility, Commitment Fee Percentage		1.50%
2021 Revolver | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3],[5]			0.88%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage				0.10%
2021 Revolver | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	[3],[5]			1.50%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage				0.20%
U.S. Xpress Revenue Equipment Installment Notes
Debt Instrument [Line Items]
Secured Debt	[2],[6]	$ 251,335			$ 251,335	$ 279,339
Debt, Weighted Average Interest Rate		4.82%			4.82%	4.70%
Debt Instrument, Collateral Amount		$ 217,000			$ 217,000
U.S. Xpress Revenue Equipment Installment Notes | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period		2.00%
Debt Instrument, Term					36 months
U.S. Xpress Revenue Equipment Installment Notes | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate During Period		5.30%
Debt Instrument, Term					84 months
Line of Credit | 2021 Revolver
Debt Instrument [Line Items]
Revolving line of credit	[2],[7]	$ 120,000			$ 120,000	$ 67,000
Loans Payable [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 2,300,000
Loans Payable [Member] | 2021 Term Loan A-2
Debt Instrument [Line Items]
Deferred loan costs		25			25	100
Loans Payable [Member] | 2021 Term Loan A-3
Debt Instrument [Line Items]
Deferred loan costs		800			800	900
Loans Payable [Member] | 2023 Term Loan
Debt Instrument [Line Items]
Deferred loan costs		$ 700			$ 700	$ 900
Loans Payable [Member] | 2021 Prudential Notes
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity				$ 125,000

[1] As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

[2] Refer to Note 12 for information regarding the fair value of debt.

[3] The interest rate margin for the 2021 Term Loans and 2021 Revolver is based on the Company's consolidated leverage ratio. As of June 30, 2024, interest accrued at 6.72% on the 2021 Term Loan A-2, 6.84% on the 2021 Term Loan A-3, and 6.84% on the 2021 Revolver.

[4] As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amounts of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

[5] The commitment fee for the unused portion of the 2021 Revolver is based on the Company's consolidated leverage ratio, and ranges from 0.1% to 0.2%. As of June 30, 2024, commitment fees on the unused portion of the 2021 Revolver accrued at 0.2% and outstanding letter of credit fees accrued at 1.5%.

[6] The revenue equipment installment loans were assumed at the close of the U.S. Xpress Acquisition and have a weighted average interest rate of 4.82% and 4.70% as of June 30, 2024 and December 31, 2023, respectively.

[7] The Company also had outstanding letters of credit of $18.1 million and $18.0 million under the 2021 Revolver, primarily related to workers' compensation and self-insurance liabilities for both June 30, 2024 and December 31, 2023, respectively. The Company also had outstanding letters of credit of $265.0 million and $264.3 million under a separate bilateral agreement which do not impact the availability of the 2021 Revolver as of June 30, 2024 and December 31, 2023, respectively.

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Defined Benefit Pension Plan (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Retirement Benefits [Abstract]
Discount Rate (Point in Time)	5.25%		5.25%
Discount Rate (Period of Time)	5.03%	4.65%	4.86%	4.76%
Expected long-term rate of return on pension plan assets	6.00%	6.00%	6.00%	6.00%

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Purchase Commitments (Details) $ in Millions	Jun. 30, 2024 USD ($)
Capital Addition Purchase Commitments Total Revenue Equipment [Member]
Long-term Purchase Commitment [Line Items]
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	$ 418.7
Purchase Obligation, to be Paid, Year One	418.7
Purchase Obligation, to be Paid, Year Two	0.0
Purchase Obligation, to be Paid, Year Three	0.0
Purchase Obligation, Due in Fourth and Fifth Year	0.0
Purchase Obligation, Due after Fifth Year	0.0
Capital Addition Purchase Commitments of Tractors [Member]
Long-term Purchase Commitment [Line Items]
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	368.4
Capital Addition Purchase Commitments Non revenue equipment [Member]
Long-term Purchase Commitment [Line Items]
Purchase Obligation, Future Minimum Payments, Remainder of Fiscal Year	56.8
Purchase Obligation, to be Paid, Year One	56.8
Purchase Obligation, Due in Second and Third Year	63.6
Purchase Obligation, Due in Fourth and Fifth Year	1.9
Purchase Obligation, Due after Fifth Year	$ 0.0

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Contingencies and Legal Proceedings (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual	$ 6.6
Payments for Reinsurance	$ 161.1

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Share Repurchase Plans (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2024	Dec. 31, 2023	Apr. 19, 2022
Knight-Swift Share Repurchase Plan, November 24, 2020
Class of Stock [Line Items]
Share repurchase plan, remaining authorized amount, value				$ 42,800
Knight-Swift Share Repurchase Plan, April 19, 2022
Class of Stock [Line Items]
Share repurchase plan, authorized amount, value				$ 350,000
Share repurchase plan, remaining authorized amount, value		$ 200,000	$ 200,000
Share repurchase, shares	0	0
Company shares repurchased, value	$ 0	$ 0

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Weighted Average Shares Outstanding (Details) - shares shares in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding		161,689	161,116	161,598	161,018
Dilutive effect of equity awards		422	824	491	899
Diluted weighted average common shares outstanding		162,111	161,940	162,089	161,917
Anti-dilutive shares excluded from diluted earnings per share	[1]	525	110	378	61

[1] Shares were excluded from the dilutive-effect calculation because the outstanding awards' exercise prices were greater than the average market price of the Company's common stock for the periods presented.

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Fair Value Measurement - Estimated Fair Values (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Financial Assets:
Equity method investments		$ 120,161	$ 102,252
Equity method investments (Estimated Fair Value)		120,161	102,252
Financial Liabilities:
Term loan Carrying Value		1,643,946	1,628,079
Revolving line of credit		120,000	67,000
Accounts receivable securitization		452,039	526,508
Business Combination, Contingent Consideration, Liability	[1]	40,859	40,859
U.S. Xpress | Class A
Financial Liabilities:
Business Combination, Contingent Consideration, Liability	[1]	134,107	134,107
2021 Term Loan A-2
Financial Liabilities:
Term loan Carrying Value	[2]	199,975	199,902
Term loan, Fair Value	[2]	200,000	200,000
2021 Term Loan A-3
Financial Liabilities:
Term loan Carrying Value	[2]	799,235	799,058
Term loan, Fair Value	[2]	800,000	800,000
2023 Term Loan
Financial Liabilities:
Term loan Carrying Value	[3]	249,297	249,135
Term loan, Fair Value	[3]	250,000	250,000
2021 Revolver
Financial Liabilities:
Revolving line of credit		120,000	67,000
U.S. Xpress Revenue Equipment Installment Notes
Financial Liabilities:
Secured Debt	[4]	251,335	279,339
Debt Instrument, Fair Value Disclosure		900	1,300
2021 Prudential Notes
Financial Liabilities:
Term loan Carrying Value	[5]	16,909	25,078
Term loan, Fair Value	[5]	16,925	25,100
Debt Instrument, Fair Value Disclosure		900	1,100
Deferred loan costs		16	22
2023 RSA
Financial Liabilities:
Accounts receivable securitization	[6]	452,039	526,508
Debt Instrument, Fair Value Disclosure	[6]	452,400	527,000
Deferred loan costs		$ 400	$ 500

[1] The contingent consideration is primarily related to the U.S. Xpress Acquisition.

[2] As of June 30, 2024, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $25,000 and $0.8 million in deferred loan costs, respectively. As of December 31, 2023, the carrying amounts of the 2021 Term Loan A-2 and 2021 Term Loan A-3 were net of $0.1 million and $0.9 million in deferred loan costs, respectively.

[3] As of June 30, 2024, the carrying amount of the 2023 Term Loan was net of $0.7 million in deferred loan costs. As of December 31, 2023, the carrying amount of the 2023 Term Loan was net of $0.9 million in deferred loan costs.

[4] As of June 30, 2024, the carrying amount of the revenue equipment installment notes included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the revenue equipment installment notes included $1.3 million in fair value adjustments.

[5] As of June 30, 2024, the carrying amount of the 2021 Prudential Notes was net of approximately $16,000 in deferred loan costs and included $0.9 million in fair value adjustments. As of December 31, 2023, the carrying amount of the 2021 Prudential Notes was net of $22,000 in deferred loan costs and included $1.1 million in fair value adjustments.

[6] The carrying amount of the 2023 RSA was net of $0.4 million and $0.5 million in deferred loan costs as of June 30, 2024 and December 31, 2023, respectively.

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Fair Value Measurement - Recurring and Nonrecurring Measurements (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended			12 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024		Jun. 30, 2023	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[1]	$ 40,859		$ 40,859			$ 40,859
Asset Impairment Charges		(5,877)	$ 0	(9,859)		$ 0
Gain (Loss) on Disposition of Property Plant Equipment				12,604		35,180
Equipment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment		6,000	14,300	12,600		35,200
U.S. Xpress | Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[1]	134,107		134,107			134,107
Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure		0		0			0
Business Combination, Contingent Consideration, Liability	[2]	40,859		40,859			40,859
Contingent Consideration Gain (Loss)		0	$ (2,500)	0	[2]	$ (2,500)	(3,359)	[2]
Total pension plan assets		33,783		33,783			35,423
Fair Value, Recurring [Member] | U.S. Xpress | Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	134,107		134,107			134,107
Contingent Consideration Gain (Loss)	[2]			0			0
Fair Value, Recurring [Member] | Fixed income funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		32,800		32,800			34,536
Fair Value, Recurring [Member] | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		983		983			887
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	0		0			0
Total pension plan assets		33,783		33,783			35,423
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U.S. Xpress | Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fixed income funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		32,800		32,800			34,536
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		983		983			887
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	0		0			0
Total pension plan assets		0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U.S. Xpress | Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed income funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	40,859		40,859			40,859
Total pension plan assets		0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U.S. Xpress | Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability	[2]	134,107		134,107			134,107
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed income funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		0		0			0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total pension plan assets		0		0			0
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial and Nonfinancial Liabilities, Fair Value Disclosure		0		0			0
Fair Value, Nonrecurring [Member] | Software and Software Development Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[3]						0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Software and Software Development Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[3]						0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Software and Software Development Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[3]						0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Software and Software Development Costs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[3]						0
Building and Building Improvements | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[4]	0		0			0
Asset Impairment Charges	[4]			(288)			(187)
Building and Building Improvements | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[4]	0		0			0
Building and Building Improvements | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[4]	0		0			0
Building and Building Improvements | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[4]	0		0			0
Property Subject to Operating Lease | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[5]	0		0
Asset Impairment Charges	[5]			(5,300)
Property Subject to Operating Lease | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[5]	0		0
Property Subject to Operating Lease | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[5]	0		0
Property Subject to Operating Lease | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[5]	0		0
Equipment [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[6]	0		0			0
Total Losses, nonrecurring assets	[6]			(4,271)			(469)
Equipment [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[6]	0		0			0
Equipment [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[6]	0		0			0
Equipment [Member] | Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	[6]	$ 0		$ 0			0
Software and Software Development Costs | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Impairment Charges	[3]						$ (1,580)

[1] The contingent consideration is primarily related to the U.S. Xpress Acquisition.

[2] Contingent consideration is associated with the U.S. Xpress Acquisition and certain other investments. The Company did not recognize any gains (losses) in the quarter and year-to-date periods ended June 30, 2024.The Company recognized a gain of $2.5 million during the quarter and year-to-date periods ended June 30, 2023.

[3] Reflects the non-cash impairment of software (within the All Other Segments).

[4] Reflects the non-cash impairment of building improvements (within the Truckload segment and the All Other Segments).

[5] Reflects the non-cash impairment related to the market value of a facility lease (within the Truckload Segment).

[6] Reflects the non-cash impairment of certain revenue equipment held for sale and other equipment (within the Truckload segment and the All Other Segments).

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Related Party Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Total revenue		$ 1,846,654	$ 1,552,979	$ 3,669,121	$ 3,189,911
Costs and Expenses		1,783,194	1,458,949	3,585,106	2,951,094
Trade receivables, net of allowance for doubtful accounts of $39,720 and $39,458, respectively		841,619		841,619		$ 888,603
Accounts payable		300,585		300,585		355,173
Certain Affiliates [Member]
Related Party Transaction [Line Items]
Trade receivables, net of allowance for doubtful accounts of $39,720 and $39,458, respectively	[1]	0		0		23
Accounts payable	[1]	162		162		$ 37
Certain Affiliates [Member] | Facility and Equipment Leases [Member]
Related Party Transaction [Line Items]
Total revenue		250	0	447	0
Costs and Expenses		141	21	291	46
Certain Affiliates [Member] | Other Services [Member]
Related Party Transaction [Line Items]
Total revenue		0	0	0	27
Costs and Expenses		$ 8	$ 259	$ 17	$ 393

[1] "Certain affiliates" includes entities that are associated with various board members and executives and require approval by the Audit Committee of the Board prior to completing transactions. Transactions with these entities generally include facility and equipment leases, equipment sales, and other services.

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Information by Segment and Geography - Segment Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024		Jun. 30, 2023
Segment Reporting Information [Line Items]
Total revenue	$ 1,846,654	$ 1,552,979	$ 3,669,121		$ 3,189,911
Operating income	63,460	94,030	84,015		238,817
Depreciation and amortization of property and equipment	178,850	156,381	360,715		312,347
Third Party Carrier Services
Segment Reporting Information [Line Items]
Operating income			(16,300)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	1,799,943	1,445,034	3,559,794		2,961,438
Operating income	59,574	101,083	100,573		261,486
Depreciation and amortization of property and equipment	162,480	139,014	326,979		277,479
Operating Segments [Member] | Truckload [Member]
Segment Reporting Information [Line Items]
Total revenue	1,264,237	953,659	2,527,252		1,965,904
Operating income	23,483	67,911	46,630		183,810
Depreciation and amortization of property and equipment	136,952	116,430	276,945		233,232
Operating Segments [Member] | LTL
Segment Reporting Information [Line Items]
Total revenue	306,478	267,105	588,600		522,409
Operating income	33,049	30,238	53,336		56,820
Depreciation and amortization of property and equipment	18,995	16,820	37,094		33,008
Operating Segments [Member] | Logistics [Member]
Segment Reporting Information [Line Items]
Total revenue	131,700	119,943	258,429		258,226
Operating income	4,759	9,566	7,232		22,386
Depreciation and amortization of property and equipment	979	987	1,930		2,030
Operating Segments [Member] | Intermodal [Member]
Segment Reporting Information [Line Items]
Total revenue	97,528	104,327	185,513		214,899
Operating income	(1,717)	(6,632)	(6,625)		(1,530)
Depreciation and amortization of property and equipment	5,554	4,777	11,010		9,209
Non-reportable segments [Member]
Segment Reporting Information [Line Items]
Total revenue	68,279	130,110	153,358		272,096
Operating income	3,886	(7,053)	(16,558)	[1]	(22,669)
Depreciation and amortization of property and equipment	16,370	17,367	33,736		34,868
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue	$ (21,568)	$ (22,165)	$ (44,031)		$ (43,623)

[1] The year-to-date $16.6 million operating loss within our All Other Segments is primarily driven by the $16.3 million operating loss in the third-party insurance business.

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Information by Segment and Geography - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Segment Reporting [Abstract]
Percentages Of Foreign Operations Consolidated Revenue	5.00%	5.00%	5.00%	5.00%
Long lived assets of foreign operations	5.00%		5.00%		5.00%