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Segment Information - Schedule of Adjusted Depreciation and Amortization (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Allocated share based compensation expenses	$ 8.4	$ 8.0	$ 62.5	$ 73.4	$ 70.2
Share-based compensation	12.6	12.2	62.5	73.4	70.2
Starz Business of Lions Gate Entertainment Corp
Allocated share based compensation expenses	5.2	4.0	24.6	25.7	28.0
Share-based compensation	5.2	4.0	24.6	25.7	28.0
Starz Business of Lions Gate Entertainment Corp | Lions Gate Corporate Employee Share Based Compensation
Allocated share based compensation expenses			$ 5.6	$ 9.7	$ 7.8
Share-based compensation	$ 0.7	$ 1.4

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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X

- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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