Long-Term Debt - Components of Long-Term Debt (Detail) - USD ($) $ in Thousands	Sep. 24, 2016	Dec. 31, 2015	Nov. 09, 2015	Sep. 26, 2015
Components of long-term debt
Unamortized debt issuance costs	$ (5,600)
Total	395,269			$ 396,982
Less current portion	(463)			(291)
Long-term portion	394,806			396,691
Senior notes [Member]
Components of long-term debt
Unamortized discount	0			(309)
Unamortized debt issuance costs	(5,635)			(3,157)
Total	394,365			396,534
Senior notes [Member] | Senior notes, interest at 6.125%, payable semi-annually, principal due November 2023 [Member]
Components of long-term debt
Gross carrying value	400,000			0
Total			$ 400,000
Senior notes [Member] | Senior subordinated notes, interest at 8.25%, payable semi-annually, repaid in December 2015 [Member]
Components of long-term debt
Gross carrying value	0			400,000
Total		$ 400,000
Asset-based revolving credit facility [Member] | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.75% or Base Rate plus a margin of 0.25% to 0.75%, amended in April 2016 [Member]
Components of long-term debt
Total	0			0
Asset-based revolving credit facility [Member] | Asset-based revolving credit facility, interest at LIBOR plus a margin of 1.25% to 1.50% or Base Rate plus a margin of 0.25% to 0.50%, final maturity April 2021[Member]
Components of long-term debt
Total	0			0
Other notes payable [Member]
Components of long-term debt
Total	$ 904			$ 448