XML 145 R124.htm IDEA: XBRL DOCUMENT v3.21.1

Segment Information (Acquisition of Investment in Films and Television Programs and Program Rights by Segment) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs and program rights	$ 1,616.7	$ 1,545.3	$ 1,469.9
Reportable Segments | Motion Picture
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs and program rights	339.8	349.8	388.4
Reportable Segments | Television Production
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs and program rights	856.1	743.3	743.2
Reportable Segments | Media Networks
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs and program rights	625.1	640.7	555.5
Intersegment Eliminations
Segment Reporting Information [Line Items]
Acquisition of investment in films and television programs and program rights	$ (204.3)	$ (188.5)	$ (217.2)

X

- Definition

Acquisition of investment in films and television programs and program rights.

+ References

No definition available.

+ Details

Name:	lgfa_AcquisitionofInvestmentinFilmsandTelevisionProgramsandProgramRights
Namespace Prefix:	lgfa_
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_SegmentReportingInformationLineItems
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:	us-gaap_StatementBusinessSegmentsAxis=lgfa_MotionPictureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lgfa_TelevisionProductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=lgfa_MediaNetworksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: