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Summary Of Significant Accounting Policies (Derivative Instruments And Hedging Activities - Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Total net liability $ 648,913us-gaap_FairValueNetAssetLiability $ 660,989us-gaap_FairValueNetAssetLiability
Foreign Exchange Contracts [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Total net liability $ 50,400us-gaap_FairValueNetAssetLiability
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember		 $ 15,000us-gaap_FairValueNetAssetLiability
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_ForeignExchangeContractMember