Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 362,939	$ 496,836	$ 438,647
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	462,967	293,423	349,449
Stock-based compensation	44,525	22,649	23,136
Amortization included in interest expense	6,332	6,538	6,158
Gain on disposition of assets	(6,057)	(5,474)	(15,721)
Loss on extinguishment of debt	270	115	0
Equity in earnings of investee	(5,094)	(3,696)	(4,315)
Deferred income tax (benefit) expense	(4,036)	2,384	3,212
Provision for doubtful accounts	8,770	12,737	9,013
(Increase) decrease in:
Receivables	(43,000)	(28,744)	(22,511)
Prepaid expenses	(2,656)	1,087	(906)
Other assets	(7,424)	(3,363)	2,711
Increase (decrease) in:
Trade accounts payable	3,262	(307)	1,176
Accrued expenses	18,902	(1,708)	(10,773)
Operating lease liabilities	7,498	2,490	7,198
Other liabilities	26,412	(11,354)	(4,862)
Cash flows provided by operating activities	873,610	783,613	781,612
Cash flows from investing activities:
Capital expenditures	(125,284)	(178,271)	(167,078)
Acquisitions	(45,393)	(138,961)	(479,766)
Decrease in notes receivable	65	62	12,124
Proceeds from disposition of assets	5,706	7,051	15,649
Cash flows used in investing activities	(164,906)	(310,119)	(619,071)
Cash flows from financing activities:
Net proceeds from issuance of common stock	20,980	15,689	18,894
Cash used for purchase of treasury shares	(5,341)	(5,989)	(10,506)
Proceeds received from revolving credit facility	783,000	403,000	445,000
Payments on revolving credit facility	(569,000)	(378,000)	(575,000)
Principal payments on long-term debt	(400)	(381)	(365)
Principal payments on financing leases	(1,331)	(1,331)	(1,331)
Proceeds received from senior credit facility term loans	0	0	350,000
Payments on senior credit facility term loans	(350,000)	0	0
Proceeds received from accounts receivable securitization program	86,400	114,900	265,000
Payments on accounts receivable securitization program	(86,400)	(114,900)	(190,000)
Debt issuance costs	(464)	(2,951)	(1,583)
Distributions to non-controlling interest	(1,655)	(1,056)	(814)
Dividends/distributions	(579,214)	(510,616)	(508,614)
Cash flows used in financing activities	(703,425)	(481,635)	(209,319)
Effect of exchange rate changes in cash and cash equivalents	(423)	127	(391)
Net increase (decrease) in cash and cash equivalents	4,856	(8,014)	(47,169)
Cash and cash equivalents at beginning of year	44,605	52,619	99,788
Cash and cash equivalents at end of year	49,461	44,605	52,619
Supplemental disclosures of cash flow information:
Cash paid for interest	165,827	168,011	120,000
Cash paid for state and federal income taxes	$ 8,505	$ 11,432	$ 16,325