Cash Flows Between Transferor and Transferee, Net Proceeds (Disbursements)

No definition available.

Name:	lgfa_CashFlowsBetweenTransferorandTransfereeNetProceedsDisbursements
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash flows between a transferor and a transferee attributable to collections not reinvested in revolving period transfers related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing and recourse).

+ References

No definition available.

+ Details

Name:	lgfa_CashFlowsBetweenTransferorandTransfereeProceedsfromCollectionsNotReinvestedinRevolvingPeriodTransfers
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash Flows Between Transferor and Transferee, Proceeds from New Transfers, Gross

+ References

No definition available.

+ Details

Name:	lgfa_CashFlowsBetweenTransferorandTransfereeProceedsfromNewTransfersGross
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Transfer of Financial Assets Accounted for as Sales, Amount Derecognized During Period

+ References

No definition available.

+ Details

Name:	lgfa_TransferofFinancialAssetsAccountedforasSalesAmountDerecognizedDuringPeriod
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the initial fair value recorded for liabilities incurred on the transfer of financial assets in a securitization, asset-backed financing arrangement, or a similar transfer which transaction is recognized as a sale of the transferred financial assets.

+ References

No definition available.

+ Details

Name:	lgfa_TransfersofFinancialAssetsAccountedforasaSaleInitialFairValueofLiabilitiesIncurred
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash Flows between a transferor and a transferee attributable to collections reinvested in revolving period transfers related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

Name:	us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash Flows between a transferor and a transferee attributable to newly transferred assets related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

Name:	us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Reflects, by transferred financial asset type, the amount of sales proceeds in excess of or deficient from the sum of the carrying amounts of transferred financial assets plus transaction costs, including those transactions in which the seller/transferor has continuing involvement with the financial assets that have been transferred.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-3

+ Details

Name:	us-gaap_SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_TradeAccountsReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=lgfa_ThirdPartyPurchasersRevolvingPooledAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Additional Financial Information - Accounts Receivable Monetization (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Transfer of Financial Assets Accounted for as Sales [Line Items]
Net cash proceeds received (paid or to be paid)		$ 491.9	$ 383.0	$ 278.3
Carrying value of receivables transferred and derecognized		512.3	400.5	285.0
Loss recorded related to transfers of receivables		$ 20.4	$ 17.5	$ 6.7
Trade Accounts Receivable \| Pooled Monetization Agreements
Transfer of Financial Assets Accounted for as Sales [Line Items]
Gross cash proceeds received for receivables transferred and derecognized	$ 5.8
Less amounts from collections reinvested under revolving agreement	(2.9)
Proceeds from new transfers	2.9
Collections not reinvested and remitted or to be remitted	0.5
Net cash proceeds received (paid or to be paid)	3.4
Carrying value of receivables transferred and derecognized	5.8
Obligations recorded	1.1
Loss recorded related to transfers of receivables	$ 1.0