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Long-Term Debt and Short-Term Debt - Schedule of Debt Restated for Adoption of New Accounting Standard (Detail) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Total debt $ 816,619 $ 807,114
Less current maturities of long-term debt 11,947 11,714
Long-term debt, excluding current maturities of long-term debt 804,672 795,400
Senior Notes Due 2020 [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes 244,330 244,088
French Safeguard [Member]    
Debt Instrument [Line Items]    
French Safeguard Obligations 507 2,000
Brazilian [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit 812 826
Chinese [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit 3,721 3,696
Audited [Member]    
Debt Instrument [Line Items]    
Total debt   820,073
Less current maturities of long-term debt   11,714
Long-term debt, excluding current maturities of long-term debt   808,359
Audited [Member] | Senior Notes Due 2020 [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   244,509
Audited [Member] | French Safeguard [Member]    
Debt Instrument [Line Items]    
French Safeguard Obligations   2,000
Audited [Member] | Brazilian [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   826
Audited [Member] | Chinese [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   3,696
Restated [Member]    
Debt Instrument [Line Items]    
Total debt   807,114
Less current maturities of long-term debt   11,714
Long-term debt, excluding current maturities of long-term debt   795,400
Restated [Member] | Senior Notes Due 2020 [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   244,088
Restated [Member] | French Safeguard [Member]    
Debt Instrument [Line Items]    
French Safeguard Obligations   2,000
Restated [Member] | Brazilian [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   826
Restated [Member] | Chinese [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   3,696
Senior Secured Term Loan B [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes 552,038 552,957
Senior Secured Term Loan B [Member] | Audited [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   562,580
Senior Secured Term Loan B [Member] | Restated [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   552,957
Senior Secured Revolving Facility [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit $ 15,211 3,547
Senior Secured Revolving Facility [Member] | Audited [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   6,462
Senior Secured Revolving Facility [Member] | Restated [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   3,547
ASU 2015-13 Reclass [Member] | Senior Notes Due 2020 [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   (421)
ASU 2015-13 Reclass [Member] | Senior Secured Term Loan B [Member]    
Debt Instrument [Line Items]    
Borrowings under Senior Notes   (9,623)
ASU 2015-13 Reclass [Member] | Senior Secured Revolving Facility [Member]    
Debt Instrument [Line Items]    
Borrowings under line of credit   $ (2,915)