Investments in Productions and Investments in Acquired Content Rights - Program Production Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Mar. 31, 2024	Apr. 02, 2023
Individual Monetization
Released, net of amortization	$ 74.7	$ 60.3	$ 613.3
Completed and not released	5.1	0.0	53.0
In production	27.1	27.3	85.8
Pre-production	10.4	8.5	126.4
Individual monetization, costs	117.3	96.1	878.5
Film/TV Group Monetization
Released, net of amortization	26.0	25.4	17.6
In production	23.6	24.3	24.0
Total film costs	49.6	49.7	41.6
Investment in Other Programming
Released, net of amortization	16.1	13.7	13.2
In production	0.8	5.1	8.2
Pre-production	0.8	0.7	3.9
Other programming costs	17.7	19.5	25.3
Total Program Investments	184.6	$ 165.3	$ 945.4
Productions and investments in acquired	$ 734.8