XML 111 R71.htm IDEA: XBRL DOCUMENT v3.19.3
Derivative Instruments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Foreign Currency Forward Exchange Contracts          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Notional amount $ 832,400 $ 936,800 $ 832,400 $ 936,800 $ 962,100
Maximum | Foreign Currency Forward Exchange Contracts          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative term of contracts     18 months    
Derivatives Not Designated s Hedging Instruments          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Amount of (loss) gain recognized in the statements of operations (9,965) (2,317) $ (6,097) (19,429)  
Cost of Sales | Derivatives Designated as Hedging Instruments | Foreign Currency Forward Exchange Contracts          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Reclassification adjustment for realized gains (losses) included in net loss 6,394 (800) 9,645 (10,000)  
Cost of Sales | Derivatives Not Designated s Hedging Instruments | Foreign Currency Forward Exchange Contracts          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Amount of (loss) gain recognized in the statements of operations $ 0 $ 15 $ 0 $ (233)