Income Tax Expense (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2020	Dec. 31, 2019	Jan. 01, 2019
Current:
Federal	$ (5,360)	$ 1,907	$ 2,031
State	(314)	1,922	1,968
Current Income Tax Expense (Benefit), Total	(5,674)	3,829	3,999
Deferred:
Federal	(21,403)	(2,652)	(3,142)
State	(4,988)	(121)	330
Deferred income taxes	(26,391)	(2,773)	(2,812)
Income tax expense (benefit)	$ (32,065)	$ 1,056	$ 1,187