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Income Taxes (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Operating Loss Carryforwards [Line Items]      
Effective tax rate (in hundredths) 35.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations 35.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations 35.00%us-gaap_EffectiveIncomeTaxRateContinuingOperations
Undistributed foreign earnings $ 247,400,000us-gaap_DeferredTaxLiabilitiesUndistributedForeignEarnings    
Unrecognized tax benefits 188,000us-gaap_UnrecognizedTaxBenefits 140,000us-gaap_UnrecognizedTaxBenefits 182,000us-gaap_UnrecognizedTaxBenefits
Accrued interest relating to unrecognized tax benefits, maximum 100,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued    
Foreign Tax Authority [Member]      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforwards $ 72,600,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember		 $ 7,700,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember		  
Minimum [Member] | State and Local Jurisdiction [Member]      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforwards, expiration dates Dec. 31, 2019    
Maximum [Member] | State and Local Jurisdiction [Member]      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforwards, expiration dates Dec. 31, 2029