Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Cash paid for:
Interest paid, net of capitalized interest	$ 9,867	$ 9,882	$ 6,236
Income taxes paid	21,181	11,465	13,733
Changes in accrued expenses due to:
Purchases of property and equipment	(8,476)	5,895	(10,370)
Purchases of capitalized software	$ 653	$ (2,497)	$ (237)