Goodwill And Other Intangible Assets (Summary Of Changes In Goodwill By Reportable Business Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			3 Months Ended
Mar. 31, 2012	Mar. 31, 2012 North America [Member]	Dec. 31, 2011 North America [Member]	Mar. 31, 2012 International [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 823,549	$ 276,714	$ 276,714	$ 546,835
Purchase Accounting Adjustments	(60,335)			(60,335)
Foreign Currency	273			273
Goodwill, Ending Balance	$ 763,487	$ 276,714	$ 276,714	$ 486,773

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

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

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-Publisher FASB

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

- Definition

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation.

+ References+ Details