CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 61,723	$ 107,240
Accounts receivable, trade, less allowance of $9,337 and $10,271, respectively	444,944	518,815
Other receivables	25,479	29,875
Inventories and supplies	18,077	14,527
Prepaid taxes, licenses and permits	16,505	17,699
Other current assets	67,900	74,459
Total current assets	634,628	762,615
Property and equipment, at cost:
Land	115,989	100,594
Buildings and improvements	320,976	309,241
Revenue equipment	2,290,376	2,169,172
Service equipment and other	224,313	306,634
Total property and equipment	2,951,654	2,885,641
Less – accumulated depreciation	978,698	1,060,365
Property and equipment, net	1,972,956	1,825,276
Goodwill	129,104	132,717
Intangible assets, net	86,477	81,502
Other non-current assets	334,771	295,145
Total assets	3,157,936	3,097,255
Current liabilities:
Accounts payable	135,990	124,483
Current portion of long-term debt	2,500	6,250
Insurance and claims accruals	81,794	78,620
Accrued payroll	50,549	49,793
Accrued expenses	30,282	20,358
Other current liabilities	29,470	30,016
Total current liabilities	330,585	309,520
Long-term debt, net of current portion	646,250	687,500
Other long-term liabilities	54,275	59,677
Insurance and claims accruals, net of current portion	239,700	244,946
Deferred income taxes	320,180	313,278
Total liabilities	1,590,990	1,614,921
Commitments and contingencies
Temporary equity - redeemable noncontrolling interest	38,607	38,699
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 80,533,536 shares issued; 63,444,681 and 63,223,003 shares outstanding, respectively	805	805
Paid-in capital	134,894	129,837
Retained earnings	1,953,385	1,875,873
Accumulated other comprehensive loss	(9,684)	(11,292)
Treasury stock, at cost; 17,088,855 and 17,310,533 shares, respectively	(551,061)	(551,588)
Total stockholders’ equity	1,528,339	1,443,635
Total liabilities, temporary equity and stockholders’ equity	$ 3,157,936	$ 3,097,255