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 8)

v3.4.0.3
Fair Value Measurements and Derivatives - Effects of Foreign Currency Which Was not Designated As Cash Flow Hedge (Details 8) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Not Designated as Hedging Instrument | Foreign Currency Collar    
Derivative Instruments Gain Loss [Line Items]    
Gain (loss) recognized in other income (expense) $ 13,625 $ (28,953)