Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements and Derivatives - Effects of Foreign Currency Which Was not Designated As Cash Flow Hedge (Details 7)

v3.7.0.1
Fair Value Measurements and Derivatives - Effects of Foreign Currency Which Was not Designated As Cash Flow Hedge (Details 7) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Not Designated as Hedging Instrument | Foreign Currency Collar | Cash Flow Hedging    
Derivative Instruments Gain Loss [Line Items]    
Gain recognized in other income (expense) $ 13,625