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Fair Value of Financial Instruments - Additional Information (Details) - Forward contracts - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Fair Value, Option, Quantitative Disclosures [Line Items]          
Derivative, notional amount $ 1,110,000   $ 1,110,000   $ 626,500
Other accounts receivable          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Fair value foreign currency forward contracts, asset 0   0   431
Accrued expenses          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Fair value foreign currency forward contracts, liability 1,697   1,697   $ 0
Other (expenses) income, net          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Recognized losses of foreign currency forward contracts $ (19,331) $ (203) (27,647) $ (13,034)  
Other, net          
Fair Value, Option, Quantitative Disclosures [Line Items]          
Change in the fair value of foreign currency forward contracts     27,600 13,000  
Cash settlements     $ (25,500) $ (18,100)