Investments in Productions and Investments in Acquired Content Rights - Program Costs Amortization (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 27, 2022	Mar. 28, 2021
Product Information [Line Items]
Program cost amortization	$ 138.5	$ 97.5
eOne
Product Information [Line Items]
Program cost amortization	138.5
eOne | Investment in Production
Product Information [Line Items]
Program cost amortization	122.8
eOne | Investment in Content
Product Information [Line Items]
Program cost amortization	15.6
eOne | Other
Product Information [Line Items]
Program cost amortization	$ 0.1