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Debt - Narrative (Details)
BRL in Millions
12 Months Ended
Dec. 31, 2015
BRL
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
Jul. 31, 2015
USD ($)
Feb. 10, 2015
USD ($)
Debt Instrument [Line Items]            
Outstanding borrowings   $ 2,300,000   $ 400,000    
Long-term debt   175,700,000   282,400,000    
Senior unsecured notes            
Debt Instrument [Line Items]            
Long-term debt   75,000,000   0    
Brazilian Real Loan            
Debt Instrument [Line Items]            
Long-term debt   2,000,000   300,000    
Brazilian Real Loan            
Debt Instrument [Line Items]            
Long-term debt   4,300,000   2,700,000    
Line of Credit | Credit Facilities China            
Debt Instrument [Line Items]            
Maximum borrowing capacity (up to)       12,000,000    
Outstanding borrowings   2,300,000   0    
Line of Credit | Credit Facilities India            
Debt Instrument [Line Items]            
Maximum borrowing capacity (up to)       2,300,000.0    
Outstanding borrowings   0   $ 0    
Line of Credit | Revolving Credit Facility            
Debt Instrument [Line Items]            
Maximum borrowing capacity (up to)           $ 450,000,000
Debt term 5 years          
Weighted-average interest rate (as a percent) 1.96%     1.96%    
Long-term debt       $ 279,400,000    
Line of Credit | Revolving Credit Facility | Minimum            
Debt Instrument [Line Items]            
Commitment fee (as a percent) 0.15%          
Line of Credit | Revolving Credit Facility | Maximum            
Debt Instrument [Line Items]            
Commitment fee (as a percent) 0.30%          
Line of Credit | LIBOR | Revolving Credit Facility            
Debt Instrument [Line Items]            
Interest rate floor (as a percent) 0.00%          
Interest rate, basis spread (as a percent) 1.00%          
Line of Credit | Federal Funds Rate | Revolving Credit Facility            
Debt Instrument [Line Items]            
Interest rate, basis spread (as a percent) 0.50%          
Senior Notes | Senior unsecured notes            
Debt Instrument [Line Items]            
Long-term debt   75,000,000   0 $ 75,000,000  
Stated interest rate (as a percent)         6.66%  
Secured Debt | Brazilian US Dollar loan            
Debt Instrument [Line Items]            
Debt term     24 months      
Stated interest rate (as a percent)     5.50%      
Debt instrument, face amount     $ 4,000,000.0      
Secured Debt | Brazilian Real Loan            
Debt Instrument [Line Items]            
Long-term debt BRL 1.3 $ 2,000,000   $ 300,000    
Stated interest rate (as a percent) 5.50%     5.50%    
Secured Debt | Brazilian Real Loan            
Debt Instrument [Line Items]            
Debt term   24 months        
Long-term debt BRL 10.6 $ 4,300,000   $ 2,700,000    
Stated interest rate (as a percent)   8.00%