Derivatives - Narrative (Details) - Foreign currency contracts - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Derivative, Gain (Loss) on Derivative, Net [Abstract] | |||
| Fair value of outstanding contracts, net gain (loss) | $ 21,400 | ||
| Loss on foreign currency exchange | Derivatives not designated as hedges | |||
| Derivative, Gain (Loss) on Derivative, Net [Abstract] | |||
| Loss (gain) on derivatives | $ (33,142) | $ 0 | $ 0 |