Revenue Recognition - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 28, 2021 USD ($) brand_category
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 329.7
Number of brand categories | brand_category	5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-03-29
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 219.9
Revenue, remaining performance obligation, period	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-12-27
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 89.1
Revenue, remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-12-26
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 15.8
Revenue, remaining performance obligation, period	1 year
eOne
Disaggregation of Revenue [Line Items]
Contract assets recognized	$ 78.6
Revenue recognized	$ 53.3