Significant Accounting Policies - Foreign Currency Translation (Details) - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Jun. 30, 2016 |
|
| Accounting Policies [Abstract] | ||||
| Foreign currency (gains) losses | $ 6,400 | $ (35,800) | $ (7,800) | |
| Non-cash (gains) losses | 9,268 | (30,127) | (3,614) | |
| Brazil | ||||
| Derivative [Line Items] | ||||
| Foreign currency losses attributable to Brazil subsidiary's U.S. dollar denominated intercompany obligations | 29,700 | |||
| Argentina | ||||
| Derivative [Line Items] | ||||
| Loss from effective peso to U.S. dollar exchange rate embedded in purchase price of bonds | $ 4,900 | $ 6,500 | ||
| Foreign currency exchange contract | ||||
| Derivative [Line Items] | ||||
| Total notional value | $ 11,300 | |||
| Loss recognized on forward currency exchange contracts | $ 700 | |||