Income Taxes - Significant Components of the Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Current:
Federal	$ 12,978	$ (6,920)	$ 20,107
State	5,292	27	3,563
Total current provision (benefit)	18,270	(6,893)	23,670
Deferred:
Federal	(54,232)	39,644	10,638
State	(3,879)	3,298	(230)
Total deferred provision (benefit)	(58,111)	42,942	10,408
Income tax expense (benefit)	$ (39,841)	$ 36,049	$ 34,078