Fair Value Measures (Changes In Level 3 Derivatives Measured On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	5 Months Ended	7 Months Ended	12 Months Ended
May 25, 2010	Dec. 31, 2010	Dec. 31, 2011
Beginning Balance	$ 44,594	$ 48,633	$ 57,023
Change in fair value	4,039	8,390	(17,974)
Ending Balance	48,633	57,023	39,049
Senior Notes Due 2016 [Member]
Debt instrument fair value		274,375	276,250
Senior Notes Due 2018 [Member]
Debt instrument fair value		607,500	643,500
Senior Notes Due 2021 [Member]
Debt instrument fair value			$ 516,250

Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 44A, 44B

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 12-16, 44A, 44B

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Name:	us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant