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Derivatives Balance Sheet Location (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Derivatives, Fair Value [Line Items]    
Assets $ 789 $ 1,062
Liabilities 1,212 1,373
Foreign Exchange Forward [Member] | Designated as Hedging Instrument [Member]
   
Derivatives, Fair Value [Line Items]    
Assets 414 375
Liabilities 1,195 915
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member]
   
Derivatives, Fair Value [Line Items]    
Assets 375 687
Liabilities 5 142
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
   
Derivatives, Fair Value [Line Items]    
Assets 0 0
Liabilities $ 12 $ 316