Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long-term Debt (Summary Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jul. 28, 2017	Mar. 30, 2016	Dec. 17, 2012
Debt Instrument [Line Items]
Long-term debt	$ 3,131,250	$ 3,152,584
Unamortized discount	(24,351)	(29,181)
Unamortized deferred financing costs	(10,670)	(13,848)	$ (9,400)
Long-term debt, net	3,096,229	3,109,555
Current portion of long-term debt	56,250	21,334
Long-term debt, net	3,039,979	3,088,221
Term-A Facility [Member]
Debt Instrument [Line Items]
Long-term debt, net	723,560	739,710
4.75% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt, net	$ 788,247	786,458
Debt, interest rate	4.75%
5.00% Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized discount					$ (17,500)
Long-term debt, net	$ 988,609	986,275
Debt, interest rate	5.00%
4.75% Senior Notes [Member]
Debt Instrument [Line Items]
Unamortized discount						$ (10,500)
Long-term debt, net	$ 595,813	594,528
Debt, interest rate	4.75%
Other Debt [Member]
Debt Instrument [Line Items]
Long-term debt, net	$ 0
Senior Notes [Member] \| 4.75% Senior Notes Due 2025 [Member]
Debt Instrument [Line Items]
Long-term debt	800,000	800,000
Senior Notes [Member] \| 5.00% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	1,000,000	1,000,000
Senior Notes [Member] \| 4.75% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	600,000	600,000
Senior Notes [Member] \| Other Debt [Member]
Debt Instrument [Line Items]
Long-term debt	0	2,584
Secured Debt [Member] \| Term-A Facility [Member]
Debt Instrument [Line Items]
Long-term debt	$ 731,250	$ 750,000		$ 750,000