Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 147,693	$ 156,074
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	385,771	341,622
Stock-based compensation	89,952	78,350
Amortization of intangible assets	49,569	53,395
Amortization of debt issuance costs and debt discounts and premiums	4,204	3,940
Provision for credit loss allowance	3,406	2,740
Loss on asset sales	1,818	1,720
(Gain) loss on debt extinguishment	(529)	13,058
Other items	3,690	7,743
Changes in operating assets and liabilities:
Accounts receivable	(100,727)	(17,620)
Income taxes, net	13,881	(10,274)
Other assets	6,115	(73,255)
Operating lease right-of-use assets	35,400	40,924
Operating lease liabilities	(31,740)	(36,563)
Accounts payable and accrued expenses	(75,980)	(76,362)
Other liabilities	48,600	(94,334)
Net cash provided by operating activities	581,123	391,158
Cash flows from investing activities:
Purchases of investments	(38,558)	(22,406)
Sales of investments	0	4,057
Real estate acquisitions	(3,074)	(53,737)
Purchases of other property, plant and equipment	(412,518)	(563,598)
Proceeds from sale of assets, net of cash transferred	195,391	0
Net cash used in investing activities	(258,759)	(635,684)
Cash flows from financing activities:
Proceeds from employee equity awards	43,876	40,034
Payment of dividends	(289,669)	(263,039)
Proceeds from senior notes, net of debt discounts	0	1,290,752
Proceeds from mortgage and loans payable	676,850	0
Repayments of finance lease liabilities	(40,773)	(32,584)
Repayments of mortgage and loans payable	(551,833)	(20,186)
Repayment of senior notes	0	(590,650)
Debt extinguishment costs	0	(8,521)
Debt issuance costs	(7,366)	(3,152)
Net cash (used in) provided by financing activities	(168,915)	412,654
Effect of foreign currency exchange rates on cash, cash equivalents and restricted cash	4,593	(22,019)
Net increase in cash, cash equivalents and restricted cash	158,042	146,109
Cash, cash equivalents and restricted cash at beginning of period	1,549,454	1,625,695
Cash, cash equivalents and restricted cash at end of period	1,707,496	1,771,804
Cash and cash equivalents	1,695,305	1,752,990
Current portion of restricted cash included in other current assets	11,295	9,702
Non-current portion of restricted cash included in other assets	896	9,112
Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows	$ 1,707,496	$ 1,771,804