Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Derivatives and Hedging Activities (Schedule of Balance Sheet Classification and Fair Values of Derivative Instruments) (Details)

v3.7.0.1
Derivatives and Hedging Activities (Schedule of Balance Sheet Classification and Fair Values of Derivative Instruments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Derivatives, Fair Value [Line Items]    
Notional amount of derivative asset $ 87,900  
Fair value (444) $ 1,368
Notional amount 94,454 69,137
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Other current assets [Member]    
Derivatives, Fair Value [Line Items]    
Fair value derivative asset 206 1,440
Notional amount of derivative asset 26,060 39,982
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Accrued expenses and other current liabilities [Member]    
Derivatives, Fair Value [Line Items]    
Fair value derivative liability (811) (48)
Notional amount of derivative liability 61,868 13,273
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other current assets [Member] | Cash Flow Hedge [Member]    
Derivatives, Fair Value [Line Items]    
Fair value derivative asset 161 37
Notional amount of derivative asset 6,526 8,348
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Accrued expenses and other current liabilities [Member] | Cash Flow Hedge [Member]    
Derivatives, Fair Value [Line Items]    
Fair value derivative liability (61)
Notional amount of derivative liability $ 7,534