CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 51,951	$ 40,752
Accounts receivable, trade, less allowance of $7,502 and $7,169, respectively	387,075	391,684
Other receivables	24,683	26,137
Inventories and supplies	12,984	14,183
Prepaid expenses	47,632	53,690
Other current assets	14,371	15,327
Total current assets	538,696	541,773
Property and equipment, at cost	2,893,125	2,941,495
Less – accumulated depreciation	1,026,277	1,007,259
Property and equipment, net	1,866,848	1,934,236
Goodwill	129,104	129,104
Intangible assets, net	73,889	76,407
Other non-current assets	378,112	370,717
Total assets	2,986,649	3,052,237
Current liabilities:
Accounts payable	113,360	112,429
Current portion of long-term debt	0	20,000
Insurance and claims accruals	101,911	93,710
Accrued payroll	49,086	54,560
Accrued expenses	13,887	18,745
Other current liabilities	45,377	56,305
Total current liabilities	323,621	355,749
Long-term debt, net of current portion	640,000	630,000
Other long-term liabilities	54,582	66,173
Insurance and claims accruals, net of current portion	237,039	236,923
Deferred income taxes	257,353	269,516
Total liabilities	1,512,595	1,558,361
Commitments and contingencies
Temporary equity - redeemable noncontrolling interest	37,821	37,944
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 80,533,536 shares issued; 61,924,797 and 61,850,434 shares outstanding, respectively	805	805
Paid-in capital	137,867	137,889
Retained earnings	1,934,007	1,952,775
Accumulated other comprehensive loss	(19,933)	(18,437)
Treasury stock, at cost; 18,608,739 and 18,683,102 shares, respectively	(616,513)	(617,100)
Total stockholders’ equity	1,436,233	1,455,932
Total liabilities, temporary equity and stockholders’ equity	$ 2,986,649	$ 3,052,237