XML 144 R93.htm IDEA: XBRL DOCUMENT
v3.20.1

Noncontrolling Interests (Narrative) (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
May 29, 2018 | Nov. 12, 2015 | Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Redeemable Noncontrolling Interest [Line Items] |  |  |  |  |
Initial fair value of redeemable noncontrolling interests |  |  | $ 0.0 | $ 15.8 | $ 0.0
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] |  |  |  |  |
First Put/ Call Option, Term |  |  | 5 years |  |
Derivative, Second Term of Contract |  |  | 7 years |  |
3 Arts Entertainment |  |  |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |  |  |
Initial fair value of redeemable noncontrolling interests | $ 15.8 |  |  |  |
Redeemable noncontrolling interest, ownership percentage held by noncontrolling interest holders | 49.00% |  |  |  |
Pilgrim Media Group |  |  |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |  |  |
Initial fair value of redeemable noncontrolling interests |  | $ 90.1 |  |  |
Redeemable noncontrolling interest, ownership percentage held by noncontrolling interest holders |  | 37.50% |  |  |
Portion of noncontrolling interest redeemable after first term, five years after November 12, 2015 |  |  | 17.50% |  |

X
- Definition Derivative, Call Rights Exercise Period + References No definition available. + Details
Name: | lgfa_DerivativeCallRightsExercisePeriod
Namespace Prefix: | lgfa_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Derivative, Period After Expiration of Put Rights that Call Rights Begin + References No definition available. + Details
Name: | lgfa_DerivativePeriodAfterExpirationofPutRightsthatCallRightsBegin
Namespace Prefix: | lgfa_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition Derivative, Second Term of Contract. + References No definition available. + Details
Name: | lgfa_DerivativeSecondTermofContract
Namespace Prefix: | lgfa_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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

X
- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Value of new stock classified as temporary equity issued during the period. + References No definition available. + Details
Name: | us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=lgfa_A3ArtsEntertainmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=lgfa_PilgrimMediaGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=lgfa_A3ArtsEntertainmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=lgfa_PilgrimMediaGroupMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |