Debt (Summary Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 2,724,500	$ 2,780,000
Unamortized Discount	(18,554)	(20,434)
Long-term Debt	2,705,946	2,759,566
Debt, Current	129,500	74,000
Long-term debt	2,576,446	2,685,566
Term-A Facility [Member]
Debt Instrument [Line Items]
Long-term Debt	1,423,417	1,478,659
7.75% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 690,594	$ 689,659
Debt Instrument, Interest Rate, Stated Percentage	7.75%	7.75%
4.75% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 591,935	$ 591,248
Debt Instrument, Interest Rate, Stated Percentage	4.75%	4.75%
Senior Notes [Member] \| 7.75% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 700,000	$ 700,000
Senior Notes [Member] \| 4.75% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	600,000	600,000
Secured Debt [Member] \| Term-A Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 1,424,500	$ 1,480,000

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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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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- Definition

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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-Topic 835

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-Section 55

-Paragraph 8

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Name Regulation S-X (SX)

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-Section 02

-Paragraph 20, 22

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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