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Long-term Debt (Summary of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Feb. 26, 2021	Feb. 08, 2021	Dec. 31, 2020	Jul. 28, 2017	Mar. 30, 2016	Dec. 17, 2012
Debt Instrument [Line Items]
Long-term debt	$ 2,875,000			$ 2,875,000
Unamortized discount	(23,167)			(18,337)
Unamortized deferred financing costs	(13,363)			(7,356)
Long-term debt, net	2,838,470			2,849,307
Current portion of long-term debt	33,750			75,000
Noncurrent portion of long-term debt	$ 2,804,720			2,774,307
4.75% Notes due August 2025
Debt Instrument [Line Items]
Debt, interest rate	4.75%
Senior Notes \| 4.75% Notes due December 2022
Debt Instrument [Line Items]
Long-term debt	$ 0			$ 400,000
Unamortized discount							$ (10,500)
Debt, interest rate		4.75%		4.75%			4.75%
Senior Notes \| 5.00% Notes due April 2024
Debt Instrument [Line Items]
Long-term debt	$ 400,000			$ 1,000,000
Unamortized discount						$ (17,500)
Debt, interest rate	5.00%	5.00%		5.00%		5.00%
Senior Notes \| 4.75% Notes due August 2025
Debt Instrument [Line Items]
Long-term debt	$ 800,000			$ 800,000
Debt, interest rate	4.75%			4.75%	4.75%
Senior Notes \| 4.25% Notes due February 2029
Debt Instrument [Line Items]
Long-term debt	$ 1,000,000			$ 0
Debt, interest rate	4.25%		4.25%
Secured Debt \| Term Loan A Facility
Debt Instrument [Line Items]
Long-term debt	$ 675,000			$ 675,000