Fair Value Measurement (Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	$ 63,029	$ 487,900
Foreign Currency Contract, Asset, Fair Value Disclosure	2,577
Interest Rate Swaps Contracts	12,713	22,137
Level I [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	63,029	487,900
Foreign Currency Contract, Asset, Fair Value Disclosure	0
Interest Rate Swaps Contracts	0	0
Level II [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	2,577
Interest Rate Swaps Contracts	12,713	22,137
Level III [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0
Interest Rate Swaps Contracts	$ 0	$ 0