XML 66 R124.htm IDEA: XBRL DOCUMENT
v3.20.1

Segment Information (Reconciliation of Segment General and Administration to Consolidated) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Segment general and administrative expenses | $ 229.6 | $ 246.8 | $ 254.4
General and administration | 430.4 | 445.4 | 454.4
Operating segments |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Segment general and administrative expenses | 229.6 | 246.8 | 254.4
Corporate |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Corporate general and administrative expenses | 99.7 | 104.2 | 110.3
Corporate and reconciling items |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Purchase accounting and related adjustments | 216.6 | 184.1 | 170.3
General and administrative expense |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Purchase accounting and related adjustments | 52.6 | 43.8 |
General and administrative expense | Corporate and reconciling items |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Share-based compensation expense included in general and administrative expense | 48.5 | 50.6 | 83.6
Purchase accounting and related adjustments | $ 52.6 | $ 43.8 | $ 6.1

X
- Definition General and administrative expenses for corporate and shared services not otherwise specifically identified in the reporting period. + References No definition available. + Details
Name: | lgfa_GeneralandAdministrativeExpensesforCorporateandSharedServices
Namespace Prefix: | lgfa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other share-based compensation expense included in general and administrative expense. + References No definition available. + Details
Name: | lgfa_OtherShareBasedCompensationExpenseinGeneralandAdministration
Namespace Prefix: | lgfa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amortization of non-cash fair value adjustments to the assets and liabilities acquired in the acquisition of businesses. + References No definition available. + Details
Name: | lgfa_PurchaseAccountingandRelatedAdjustments
Namespace Prefix: | lgfa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Segment general and administration. + References No definition available. + Details
Name: | lgfa_SegmentGeneralAndAdministration
Namespace Prefix: | lgfa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=lgfa_CorporateAndReconcilingItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GeneralAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |