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Subsequent Events (Narrative) (Details) $ in Millions | Aug. 03, 2023 USD ($)
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Subsequent Event | eOne |
Subsequent Event [Line Items] |
Business Combination, Price of Acquisition, Expected | $ 375.0

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- Definition Purchase price of expected business acquisition prior to consideration being transferred. Excludes asset acquisition. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 15 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=116873391&loc=d3e405-128459 + Details
Name: | us-gaap_BusinessCombinationPriceOfAcquisitionExpected
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_BusinessAcquisitionAxis=lgfa_EntertainmentOneTelevisionAndFilmEOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |