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Long Term Debt - Summary of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Debt Instrument [Line Items]    
Total debt $ 810,203 $ 798,464
Less current maturities of long-term debt 10,753 12,751
Long-term debt, excluding current maturities of long-term debt 799,450 785,713
Senior Notes Due 2020 [Member]    
Debt Instrument [Line Items]    
Senior debt 245,340 245,077
French Safeguard [Member]    
Debt Instrument [Line Items]    
French Safeguard Obligations 363 358
Brazilian [Member]    
Debt Instrument [Line Items]    
Line of credit 489 573
Chinese [Member]    
Debt Instrument [Line Items]    
Line of credit 2,106 2,619
Senior Secured Term Loan B [Member]    
Debt Instrument [Line Items]    
Senior debt 523,884 524,539
Senior Secured Revolving Facility [Member]    
Debt Instrument [Line Items]    
Line of credit $ 38,021 $ 25,298