Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities:
Net income	$ 96,160	$ 118,971	$ 181,188	$ 210,290
Adjustments to reconcile net income to net cash provided by operating activities—
Depreciation	73,959	62,757	144,913	124,864
Amortization of intangible assets	107,945	21,291	223,696	42,646
Asset impairment charges	2,800	2,319	2,800	2,319
Change in fair value of contingent consideration liabilities	809	(210)	5,978	(573)
Equity in (earnings) losses of unconsolidated affiliates, net of distributions	4,707	(8,108)	(15,783)	(13,976)
Amortization of deferred financing costs	1,460	844	2,918	1,690
Gain on sale of property and equipment	(1,263)	(4,872)	(3,456)	(9,854)
Gain on sale of investments	0	0	(6,696)	0
Unrealized loss from mark-to-market adjustment on investment	41,654	0	50,047	0
Increase (decrease) in provision for credit losses	(428)	23,877	(295)	23,920
Deferred income tax expense (benefit)	8,493	14,253	395	16,747
Non-cash stock-based compensation	28,090	23,923	51,082	42,610
Foreign currency (gain) loss	1,179	(1,054)	2,760	(1,630)
Payments for contingent consideration liabilities	0	0	(63)	0
Changes in operating assets and liabilities, net of non-cash transactions	(246,834)	(65,043)	(435,663)	(124,492)
Net cash provided by operating activities	118,731	188,948	203,821	314,561
Cash Flows from Investing Activities:
Capital expenditures	(121,574)	(74,898)	(231,511)	(158,384)
Proceeds from sale of property and equipment	15,594	11,447	24,404	18,670
Proceeds from insurance settlements related to property and equipment	791	273	982	280
Cash paid for acquisitions, net of cash, cash equivalents and restricted cash acquired	(4,809)	(35,334)	(4,809)	(68,112)
Investments in unconsolidated affiliates and other	(8,334)	(342)	(16,653)	(114,324)
Cash received from investments	445	2,807	16,905	3,017
Cash paid for intangible assets	(62)	(324)	(336)	(324)
Net cash used in investing activities	(117,949)	(96,371)	(211,018)	(319,177)
Cash Flows from Financing Activities:
Borrowings under credit facility	1,520,221	1,055,583	2,889,372	1,884,079
Payments under credit facility	(1,446,103)	(1,058,022)	(2,747,249)	(1,714,840)
Payments on other long-term debt	(1,902)	(757)	(3,981)	(1,614)
Net borrowings (repayments) of short-term debt	107	0	(15,596)	(4,247)
Deferred financing costs	0	0	(48)	0
Payments for contingent consideration liabilities	0	0	(1,514)	(263)
Contributions received from (distributions to) non-controlling interests, net	147	(4,121)	(391)	(5,250)
Payments related to tax withholding for share-based compensation	(64,963)	(36,572)	(76,215)	(60,493)
Payments of dividends	(10,088)	(8,415)	(20,930)	(17,213)
Repurchase of common stock	(84,885)	(29,449)	(94,364)	(48,923)
Net cash provided by (used in) financing activities	(87,466)	(81,753)	(70,916)	31,236
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	(786)	1,276	(408)	1,287
Net increase (decrease) in cash, cash equivalents and restricted cash	(87,470)	12,100	(78,521)	27,907
Cash, cash equivalents and restricted cash, beginning of period	240,836	202,615	231,887	186,808
Cash, cash equivalents and restricted cash, end of period	$ 153,366	$ 214,715	$ 153,366	$ 214,715