Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2020	Dec. 25, 2019	Dec. 26, 2018
Statements of Other Comprehensive Income [Abstract]
Net income (loss)	$ 24,474	$ 24,900	$ (8,994)
Unrealized net (losses) gains arising during the period from interest rate swap	(1,762)	430	0
Reclassifications of losses (gains) into net income	278	(84)	0
Income tax benefit (expense)	398	(93)	0
Other comprehensive (loss) income, net of taxes	(1,086)	253	0
Comprehensive income (loss)	$ 23,388	$ 25,153	$ (8,994)