Derivative, Call Rights Exercise Period

No definition available.

Name:	lgfa_DerivativeCallRightsExercisePeriod
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Derivative, Period After Expiration of Put Rights that Call Rights Begin

+ References

No definition available.

+ Details

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Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise period for put rights.

+ References

No definition available.

+ Details

Name:	lgfa_DerivativePutRightsExercisePeriod
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Noncontrolling Interest, Call Period

+ References

No definition available.

+ Details

Name:	lgfa_NoncontrollingInterestCallPeriod
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The portion of redeemable noncontrolling interest, expressed as a percentage of the company acquired, that is redeemable at the completion of the first term.

+ References

No definition available.

+ Details

Name:	lgfa_RedeemableNoncontrollingInterestPercentRedeemableatFirstTerm
Namespace Prefix:	lgfa_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of increase (decrease) in temporary equity from changes classified as other.

+ References

No definition available.

+ Details

Name:	us-gaap_TemporaryEquityOtherChanges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=lgfa_PilgrimMediaGroupMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=lgfa_PilgrimMediaGroupMember
Namespace Prefix:
Data Type:	na
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Noncontrolling Interests (Narrative) (Details) - USD ($) $ in Millions			3 Months Ended	9 Months Ended
	Nov. 12, 2024	Nov. 12, 2022	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Redeemable Noncontrolling Interest [Line Items]
Noncontrolling interests discount accretion				$ 17.7	$ 17.1
Forecast
Redeemable Noncontrolling Interest [Line Items]
Noncontrolling Interest, Call Period	30 days	30 days
3 Arts Entertainment
Redeemable Noncontrolling Interest [Line Items]
First Put/ Call Option, Term				5 years
Put rights exercise period				60 days
Period after expiration of put rights that call rights begin				30 days
Call rights exercise period				60 days
Pilgrim Media Group
Redeemable Noncontrolling Interest [Line Items]
Noncontrolling interests discount accretion			$ 2.7
Pilgrim Media Group
Redeemable Noncontrolling Interest [Line Items]
Portion of noncontrolling interest redeemable after first term				25.00%