Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2020	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Base lease term (in years)	10 years
Operating lease expense	$ 39.9	$ 40.8	$ 41.7
Rent deferred for executed lease amendments	4.4
Reduction to lease expense	0.3
Right-of-use asset impairment charges	0.5
Options to extend lease term included in operating lease payments	124.4
Minimum lease payments for leases signed but not yet commenced	$ 6.1
Minimum
Lessee, Lease, Description [Line Items]
Lease extension term (in years)	5 years
Maximum
Lessee, Lease, Description [Line Items]
Lease extension term (in years)	15 years