Leases - Summary of Components of Lease Expense (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jun. 25, 2021	Jul. 01, 2022	Jun. 25, 2021
Leases [Abstract]
Operating lease cost	$ 5.9	$ 4.8	$ 11.0	$ 8.5
Short-term lease cost	0.3	0.5	1.0	0.9
Total lease cost	6.2	5.3	12.0	9.4
Operating cash flows from operating leases	$ 5.9	$ 5.5	$ 11.1	$ 9.2
Weighted-average remaining lease term – operating leases	3 years 4 months 24 days	1 year 9 months 18 days	3 years 4 months 24 days	1 year 9 months 18 days
Weighted-average discount rate – operating leases	4.80%	5.10%	4.80%	5.10%