Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 125,683	$ 54,196
Accounts receivable, trade, less allowance of $10,142 and $9,169, respectively	493,139	460,518
Other receivables	24,480	24,449
Inventories and supplies	12,849	11,140
Prepaid taxes, licenses and permits	8,510	17,549
Other current assets	65,845	63,361
Total current assets	730,506	631,213
Property and equipment	2,780,691	2,557,825
Less – accumulated depreciation	1,061,578	944,582
Property and equipment, net	1,719,113	1,613,243
Goodwill	74,404	74,618
Intangible assets, net	51,238	55,315
Other non-current assets	283,868	229,324
Total assets	2,859,129	2,603,713
Current liabilities:
Accounts payable	115,860	93,987
Current portion of long-term debt	5,000	5,000
Insurance and claims accruals	77,663	72,594
Accrued payroll	47,619	44,333
Accrued expenses	31,553	28,758
Other current liabilities	24,939	24,011
Total current liabilities	302,634	268,683
Long-term debt, net of current portion	568,750	422,500
Other long-term liabilities	42,765	43,314
Insurance and claims accruals, net of current portion	238,689	237,220
Deferred income taxes	281,057	268,499
Total liabilities	1,433,895	1,240,216
Commitments and contingencies
Temporary equity:
Temporary equity - redeemable noncontrolling interest	38,676	35,947
Stockholders’ equity:
Common stock, $0.01 par value, 200,000,000 shares authorized; 80,533,536 shares issued; 63,202,053 and 65,790,112 shares outstanding, respectively	805	805
Paid-in capital	127,046	121,904
Retained earnings	1,823,927	1,667,104
Accumulated other comprehensive loss	(13,435)	(20,604)
Treasury stock, at cost; 17,331,483 and 14,743,424 shares, respectively	(551,785)	(441,659)
Total stockholders’ equity	1,386,558	1,327,550
Total liabilities, temporary equity and stockholders’ equity	$ 2,859,129	$ 2,603,713