Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows from Operating Activities
Net income	$ 157,636	$ 115,048	$ 189,390
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations, net of tax	0	(347)	(21,392)
Depreciation and amortization	276,569	229,979	217,522
Amortization of debt financing costs and discounts on debt	9,227	9,158	9,845
Non-cash operating lease expense	31,524	0	0
Share-based compensation expense	25,202	25,379	17,413
Deferred income taxes	41,433	34,470	5,203
Non-cash impairment of assets	0	993	0
Gain on sale of assets	0	0	(1,027)
Loss on early extinguishments and modifications of debt	34,949	61	1,582
Other operating activities	2,645	887	(2,033)
Changes in operating assets and liabilities:
Accounts receivable, net	(315)	(772)	(9,937)
Inventories	(2,032)	1,699	565
Prepaid expenses and other current assets	(1,423)	4,224	4,957
Income taxes (receivable) payable, net	(296)	(140)	1,089
Other long-term tax assets, net	5,475	(292)	(5,183)
Other assets, net	(4,508)	(4,094)	2,318
Accounts payable and accrued liabilities	1,052	(18,494)	(13,216)
Operating lease liabilities	(31,524)	0	0
Other long-term tax liabilities	204	189	140
Other liabilities	5,278	(409)	(1,117)
Net cash provided by operating activities	548,992	434,527	422,551
Cash Flows from Investing Activities
Capital expenditures	(207,637)	(161,544)	(190,464)
Cash paid for acquisitions, net of cash received	(5,535)	(934,073)	(1,153)
Advances pursuant to development agreement	0	0	(35,108)
Other investing activities	(18,259)	(39,710)	706
Net cash used in investing activities	(231,431)	(1,135,327)	(226,019)
Cash Flows from Financing Activities
Borrowings under bank credit facility	1,666,329	1,114,600	958,000
Payments under bank credit facility	(2,132,024)	(964,322)	(1,119,485)
Proceeds from issuance of senior notes	1,000,000	700,000	0
Retirement of senior notes	(750,000)	0	0
Premium and consent fees	(25,785)	0	0
Debt financing costs, net	(15,500)	(14,215)	(3,430)
Share-based compensation activities, net	(5,776)	(5,344)	(7,711)
Shares repurchased and retired	(28,045)	(59,570)	(31,927)
Dividends paid	(28,949)	(24,730)	(11,286)
Other financing activities	(565)	(178)	503
Net cash provided by (used in) financing activities	(320,315)	746,241	(215,336)
Cash Flows from Discontinued Operations
Cash flows from operating activities	0	0	(514)
Cash flows from investing activities	0	482	36,247
Cash flows from financing activities	0	0	0
Net cash provided by discontinued operations	0	482	35,733
Change in cash, cash equivalents and restricted cash	(2,754)	45,923	16,929
Cash, cash equivalents and restricted cash, beginning of period	273,202	227,279	210,350
Cash, cash equivalents and restricted cash, end of period	270,448	273,202	227,279
Supplemental Disclosure of Cash Flow Information
Cash paid for interest, net of amounts capitalized	231,734	179,154	174,090
Cash paid for income taxes	(2,120)	5,657	5,189
Supplemental Schedule of Non-cash Investing and Financing Activities
Payables incurred for capital expenditures	$ 1,897	$ 4,930	$ 9,297