Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 02, 2021	Oct. 03, 2020	Jul. 04, 2020	Apr. 04, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 9,987	$ 17,322	$ 2,199	$ 15,600	$ 3,280	$ 15,106	$ 17,045	$ 8,257	$ 45,108	$ 43,688	$ 53,933
Other comprehensive income (loss) before tax:
Change in fair value of derivatives									1,569	(1,229)	(4,357)
Reclassification to earnings									2,359	5,030	239
Other comprehensive income (loss) before tax									3,928	3,801	(4,118)
Income tax expense (benefit) related to other comprehensive income (loss)									970	974	(1,053)
Other comprehensive income (loss), net of tax									2,958	2,827	(3,065)
Comprehensive income									$ 48,066	$ 46,515	$ 50,868