Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Lessee, Lease, Description [Line Items]
Rent expense	$ 88.2	$ 90.6
Rent expense			$ 68.9
Right-of-use assets obtained in exchange for lease obligations, operating leases	$ 28.4	109.1
eOne Acquisition
Lessee, Lease, Description [Line Items]
Right-of-use assets obtained in exchange for lease obligations, operating leases		$ 88.8
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms	17 years