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Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Beginning balance $ (11,813) $ (796) $ 12,177
Foreign currency translation adjustments (8,831) (11,542) (12,973)
Change in fair value of derivative instruments (538) 2,892  
Amounts reclassified from accumulated other comprehensive loss to other income (expense) due to hedge instrument ineffectiveness   (576)  
Ending balance (18,668) (11,813) (796)
Income tax expense on other comprehensive income items (902) 0 0
Less: Comprehensive income attributable to non-controlling interest 1,104 0 $ 0
Accumulated other comprehensive loss (18,466) (11,813)  
Foreign Exchange Forward | Cost of Goods Sold      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified from accumulated other comprehensive income to cost of goods sold 1,500 $ (1,791)  
Foreign Exchange Forward | Sales Revenue, Net      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amounts reclassified from accumulated other comprehensive income to cost of goods sold $ 1,014