Goodwill (Details) $ in Millions	3 Months Ended
Jun. 30, 2025 USD ($)
Goodwill [Roll Forward]
Goodwill, balance at beginning of period	$ 808.5
Business acquisitions	35.6
Goodwill, balance at end of period	844.1
Arts Entertainment LLC
Goodwill [Roll Forward]
Business acquisitions	7.3
Motion Picture
Goodwill [Roll Forward]
Goodwill, balance at beginning of period	396.9
Business acquisitions	0.0
Goodwill, balance at end of period	396.9
Television Production
Goodwill [Roll Forward]
Goodwill, balance at beginning of period	411.6
Business acquisitions	35.6
Goodwill, balance at end of period	$ 447.2

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details