Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 28, 2016	Sep. 28, 2016	Jun. 29, 2016	Mar. 30, 2016	Dec. 30, 2015	Sep. 30, 2015	Jul. 01, 2015	Apr. 01, 2015	Dec. 28, 2016	Dec. 30, 2015	Dec. 31, 2014
Current income taxes:
Federal											$ (1)
State									$ 224	$ 188	29
Total current									224	188	28
Deferred income taxes:
Federal									9,660	8,871	(44,137)
State									2,730	6,378	(22,864)
Total deferred									12,390	15,249	(67,001)
Charge in lieu of tax (attributable to stock options)									169	5,420	3,965
Tax provision for income taxes	$ 853	$ 2,830	$ 5,339	$ 3,761	$ 4,576	$ 6,505	$ 5,062	$ 4,714	$ 12,783	$ 20,857	$ (63,008)