Financial Instruments - Derivatives by Balance Sheet Location (Details) - USD ($) $ in Millions	Mar. 31, 2025	Mar. 31, 2024
Derivatives, Fair Value [Line Items]
Derivative asset, current	$ 0.0	$ 35.6
Derivative liability, noncurrent	$ 3.1
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]		Other accrued liabilities
Lions Gate Entertainment Corp.
Derivatives, Fair Value [Line Items]
Derivative asset, current	$ 0.0	$ 35.6
Derivative liability, noncurrent	$ 3.1
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other current assets	Other current assets
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]		Other accrued liabilities
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, current	$ 1.8	$ 35.6
Designated as Hedging Instrument \| Lions Gate Entertainment Corp.
Derivatives, Fair Value [Line Items]
Derivative asset, current	1.8	35.6
Derivative liabilities, current		2.8
Forward exchange contracts \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, current	1.8	0.0
Derivative liability, noncurrent	0.0
Forward exchange contracts \| Designated as Hedging Instrument \| Lions Gate Entertainment Corp.
Derivatives, Fair Value [Line Items]
Derivative asset, current	1.8	0.0
Derivative liability, noncurrent	0.0
Derivative liabilities, current		2.8
Interest rate swaps \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, current	0.0	35.6
Derivative liability, noncurrent	3.1
Interest rate swaps \| Designated as Hedging Instrument \| Lions Gate Entertainment Corp.
Derivatives, Fair Value [Line Items]
Derivative asset, current	0.0	35.6
Derivative liability, noncurrent	$ 3.1
Derivative liabilities, current		$ 0.0

Indicates line item in statement of financial position that includes derivative asset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483466/210-20-50-3

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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- Definition

Indicates line item in statement of financial position that includes derivative liability classified as current.

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- Definition

Indicates line item in statement of financial position that includes derivative liability classified as noncurrent.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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