Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Jan. 03, 2021	Dec. 29, 2019
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 6.7	$ 6.8
Amortization expense	8.9	9.7
Finance leases, gross	10.1	12.1
Accumulated depreciation of finance leases	5.5	4.8
Internal-use software [Member]
Property, Plant and Equipment [Line Items]
Amortization expense	$ 2.9	$ 3.0