CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 211,921	$ 159,784
Accounts receivable trade, net	780,868	701,512
Other receivables	3,902	3,022
Prepaid taxes	3,599	2,191
Prepaid expenses and other current assets	22,646	27,779
TOTAL CURRENT ASSETS	1,022,936	894,288
Restricted investments	16,888	24,256
Property and equipment, net	755,580	681,451
Right-of-use assets - operating leases	101,572	44,036
Right-of-use assets - financing leases	1,710	1,252
Other intangibles, net	204,524	196,672
Goodwill	628,093	576,913
Other assets	21,359	18,426
TOTAL ASSETS	2,752,662	2,437,294
CURRENT LIABILITIES:
Accounts payable trade	403,471	424,923
Accounts payable other	24,517	12,493
Accrued payroll	68,261	56,938
Accrued other	112,858	82,827
Lease liability - operating leases	27,778	11,364
Lease liability - financing leases	1,686	1,251
Current portion of long-term debt	102,093	97,273
TOTAL CURRENT LIABILITIES	740,664	687,069
Long-term debt	217,771	177,479
Non-current liabilities	44,658	41,572
Lease liability - operating leases	79,758	34,916
Deferred taxes	152,426	155,944
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value; 2,00,000 shares authorized; no shares issued or outstanding in 2022 and 2021	0	0
Additional paid-in capital	202,657	189,256
Purchase price in excess of predecessor basis, net of tax benefit of $10,306	(15,458)	(15,458)
Retained earnings	1,702,308	1,424,634
Accumulated other comprehensive loss	(238)	(207)
Treasury stock; at cost, 8,635,626 shares in 2022 and 7,317,058 shares in 2021.	(372,303)	(258,330)
TOTAL STOCKHOLDERS' EQUITY	1,517,385	1,340,314
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	2,752,662	2,437,294
Class A Common Stock [Member]
STOCKHOLDERS' EQUITY:
Common stock	413	412
Class B Common Stock [Member]
STOCKHOLDERS' EQUITY:
Common stock	$ 6	$ 7