Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt (Summary Of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2011	Dec. 17, 2012
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 2,780,000us-gaap_DebtInstrumentCarryingAmount	$ 2,180,000us-gaap_DebtInstrumentCarryingAmount
Debt Instrument, Unamortized Discount	(20,434)	(22,817)
Long-term Debt, Net	2,759,566us-gaap_LongTermDebt	2,157,183us-gaap_LongTermDebt
Current portion of long-term debt	74,000us-gaap_DebtCurrent	0us-gaap_DebtCurrent
Long-term debt	2,685,566us-gaap_LongTermDebtNoncurrent	2,157,183us-gaap_LongTermDebtNoncurrent
Term-A Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	1,480,000	880,000
Long-term debt	1,404,659	878,315
7.75% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.75%		7.75%
Long-term Debt, Gross	700,000	700,000	700,000
Debt Instrument, Unamortized Discount			(14,000)
Long-term debt	689,659	688,497
4.75% Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.75%			4.75%
Long-term Debt, Gross	600,000	600,000		600,000
Debt Instrument, Unamortized Discount				(10,500)
Long-term debt	$ 591,248	$ 590,371