CONSOLIDATED CONDENSED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 42,754	$ 107,240
Accounts receivable, trade, less allowance of $10,636 and $10,271, respectively	449,786	518,815
Other receivables	26,417	29,875
Inventories and supplies	17,251	14,527
Prepaid taxes, licenses and permits	7,931	17,699
Other current assets	100,669	74,459
Total current assets	644,808	762,615
Property and equipment	2,952,430	2,885,641
Less – accumulated depreciation	965,540	1,060,365
Property and equipment, net	1,986,890	1,825,276
Goodwill	129,104	132,717
Intangible assets, net	88,994	81,502
Other non-current assets	344,666	295,145
Total assets	3,194,462	3,097,255
Current liabilities:
Checks issued in excess of cash balances	14,659	0
Accounts payable	129,008	124,483
Current portion of long-term debt	3,750	6,250
Insurance and claims accruals	73,206	78,620
Accrued payroll	48,851	49,793
Accrued expenses	27,719	20,358
Other current liabilities	32,471	30,016
Total current liabilities	329,664	309,520
Long-term debt, net of current portion	686,250	687,500
Other long-term liabilities	52,579	59,677
Insurance and claims accruals, net of current portion	238,080	244,946
Deferred income taxes	336,726	313,278
Total liabilities	1,643,299	1,614,921
Commitments and contingencies
Temporary equity - redeemable noncontrolling interest	38,948	38,699
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 80,533,536 shares issued; 63,390,516 and 63,223,003 shares outstanding, respectively	805	805
Paid-in capital	133,038	129,837
Retained earnings	1,938,694	1,875,873
Accumulated other comprehensive loss	(8,650)	(11,292)
Treasury stock, at cost; 17,143,020 and 17,310,533 shares, respectively	(551,672)	(551,588)
Total stockholders’ equity	1,512,215	1,443,635
Total liabilities, temporary equity and stockholders’ equity	$ 3,194,462	$ 3,097,255