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Fair Value Of Financial Instruments (Summary Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Estimated fair value of long-term debt $ 815,200,000us-gaap_LongTermDebtFairValue $ 759,700,000us-gaap_LongTermDebtFairValue
Foreign Exchange Contracts [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives - foreign exchange contracts, Assets 31,000us-gaap_DerivativeAssets
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
2,787,000us-gaap_DerivativeAssets
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Derivatives - foreign exchange contracts, Liabilities 2,460,000us-gaap_DerivativeLiabilities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
5,861,000us-gaap_DerivativeLiabilities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Significant Other Observable Inputs Level 2 [Member] | Foreign Exchange Contracts [Member] | Fair Value, Measurements, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives - foreign exchange contracts, Assets 31,000us-gaap_DerivativeAssets
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
2,787,000us-gaap_DerivativeAssets
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
Derivatives - foreign exchange contracts, Liabilities $ 2,460,000us-gaap_DerivativeLiabilities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
$ 5,861,000us-gaap_DerivativeLiabilities
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_ForeignExchangeContractMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember