Debt - Additional Information (Detail)					12 Months Ended
	Sep. 30, 2016 USD ($)	Oct. 19, 2015 USD ($)	Oct. 01, 2011 USD ($) ft²	Jun. 01, 2004 USD ($) ft²	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Oct. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)
Line of Credit Facility [Line Items]
Debt issuance costs wrote off					$ 3,089,000	$ 18,673,000	$ 1,398,000
Period of lease agreement			20 years	20 years
Lease of land and building | ft²			75,000	110,000
Undiscounted annual lease payments			$ 200,000	$ 300,000
Aggregate non discounted lease payments over the twenty year term			3,600,000	5,600,000
Capital leased assets reflected in property, plant and equipment, net							$ 25,000,000
accumulated depreciation of capital leased assets					3,600,000	2,600,000
Senior Notes Due 2020 [Member]
Line of Credit Facility [Line Items]
Borrowings					$ 250,000,000
Debt instrument interest rate stated percentage					10.25%
Senior Secured Term Loan B [Member]
Line of Credit Facility [Line Items]
Borrowings	$ 545,000,000				$ 545,000,000				$ 575,000,000
Debt instrument interest rate stated percentage	0.75%
Debt instrument, applicable margin	4.25%				4.25%
New Senior Credit Facilities [Member]
Line of Credit Facility [Line Items]
Senior secured revolving credit facility maximum borrowing capacity	$ 133,000,000							$ 143,000,000
Senior secured revolving credit facility current borrowing capacity	100,000,000
Debt threshold limit	30,000,000
Debt threshold limit after amendment	$ 42,900,000
Percentage of borrowings under line of credit facility to be exceeded aggregate commitments to maintain net leverage ratio	30.00%
Debt issuance costs	$ 4,000,000
Debt issuance costs wrote off	$ 2,600,000
Term Loan Credit Facility [Member] | PEP [Member]
Line of Credit Facility [Line Items]
Senior secured revolving credit facility maximum borrowing capacity		$ 525,000,000
Line of credit facility, Expiration period		7 years
Line of credit facility, Additional borrowing feature, amount		$ 100,000,000
Senior Secured Revolving Credit Facility [Member] | PEP [Member]
Line of Credit Facility [Line Items]
Line of credit facility, Expiration period		5 years
Line of credit facility, Additional borrowing feature, amount		$ 100,000,000
Senior Secured Revolving Credit Facility [Member] | Senior Notes Due 2020 [Member] | PEP [Member]
Line of Credit Facility [Line Items]
Borrowings		$ 300,000,000
Debt instrument interest rate stated percentage		10.25%
Land Owned [Member]
Line of Credit Facility [Line Items]
Fair value			800,000	500,000
Building [Member]
Line of Credit Facility [Line Items]
Fair value			$ 1,100,000	$ 1,900,000
French Safeguard [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate stated percentage					0.00%
French Safeguard Obligations					$ 358,000	$ 2,000,000
Current maturities of French Safeguard obligations					100,000
Noncurrent maturities of French Safeguard obligations					$ 300,000
Minimum [Member] | Senior Secured Term Loan B [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate stated percentage					0.75%
Minimum [Member] | French Safeguard [Member]
Line of Credit Facility [Line Items]
Creditor's claim period					10 years
Minimum [Member] | Brazilian [Member]
Line of Credit Facility [Line Items]
Lines of credit annual interest rate					2.50%
Minimum [Member] | Chinese [Member]
Line of Credit Facility [Line Items]
Lines of credit annual interest rate					1.40%
Maximum [Member] | Brazilian [Member]
Line of Credit Facility [Line Items]
Lines of credit annual interest rate					9.10%
Maximum [Member] | Chinese [Member]
Line of Credit Facility [Line Items]
Lines of credit annual interest rate					4.60%