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Programming Content - Summary of tabular form of amortization of programming content (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Owned and produced films and television programs			$ 70.6	$ 84.3
Starz Business of Lions Gate Entertainment Corp
Licensed program rights	$ 504.3	$ 392.5	544.5	596.0	$ 536.8
Owned and produced films and television programs	16.1	80.0	82.0	49.0	56.2
Total	$ 520.4	$ 472.5	$ 626.5	$ 645.0	$ 593.0

X

- Definition

Amortization expense Of programming content.

+ References

No definition available.

+ Details

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X

- Definition

Amount of amortization expense for capitalized cost for right acquired by broadcaster under license agreement for program material.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 920
-SubTopic 350
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478609/920-350-50-2

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- Definition

Amount of amortization expense for capitalized film cost for film predominantly monetized on its own.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483154/926-20-50-4A

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