Long-Term Debt (Interest Rates on Outstanding Borrowings Under Term Loans) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2011		Dec. 31, 2010
Debt	$ 5,011,209
Euro Tranche A [Member]
Debt	254,401		234,550
Basis	EURIBO + 2.75%		EURIBO + 2.75%
Rate	4.04%		3.66%
U.S. Tranche B [Member]
Debt	500,000
U.S. Tranche B [Member] | 6.60% Swapped to Fixed Rate-December 2012 [Member]
Debt	500,000	[1]	500,000	[1]
Basis	Fixed	[1]	Fixed	[1]
Rate	6.60%	[1]	6.60%	[1]
Euro Tranche B [Member]
Debt	731,808		674,705
Basis	EURIBO + 3.25%
Rate	4.54%
Euro Tranche B [Member] | 5.38% Swapped to Fixed Rate-March 2011 [Member]
Debt			267,740	[1]
Basis			Fixed	[1]
Rate			5.38%	[1]
Euro Tranche B [Member] | Floating Rate [Member]
Debt			$ 406,965
Basis			EURIBO + 3.25%
Rate			4.11%

[1] Designated as a cash flow hedge of expected future borrowings under the Senior Credit Agreement