XML 51 R41.htm IDEA: XBRL DOCUMENT v3.20.2

Investment In Films and Television Programs and Program Rights (Narrative) (Details)	6 Months Ended
	Sep. 30, 2020
Segment Reporting Information [Line Items]
Ultimate revenue, estimates used, maximum term, motion picture	10 years
Ultimate revenue, estimates used, maximum term, television series	10 years
Ultimate revenue, estimates used, term, television series in production	5 years
Ultimate revenue, estimates used, maximum term, acquired libraries	20 years
Projects in development, potential trigger for write-off of development costs, time period from date of initial investment	3 years
Film, Monetized on Its Own, and Film Group, Impairment, Statement of Income [Extensible List]	lgfa:DirectOperatingCost

X

- Definition

Film, Monetized on Its Own, Amortization Period, Acquired Libraries

+ References

No definition available.

+ Details

Name:	lgfa_FilmMonetizedonItsOwnAmortizationPeriodAcquiredLibraries
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Film, Monetized on Its Own, Amortization Period, Motion Picture

+ References

No definition available.

+ Details

Name:	lgfa_FilmMonetizedonItsOwnAmortizationPeriodMotionPicture
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Film, Monetized on Its Own, Amortization Period, Television Series

+ References

No definition available.

+ Details

Name:	lgfa_FilmMonetizedonItsOwnAmortizationPeriodTelevisionSeries
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Film, Monetized on Its Own, Amortization Period, Television Series in Production

+ References

No definition available.

+ Details

Name:	lgfa_FilmMonetizedonItsOwnAmortizationPeriodTelevisionSeriesinProduction
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Film, Projects in Development, Potential Trigger for Write-off of Development Costs, Time Period from Date of Initial Investment

+ References

No definition available.

+ Details

Name:	lgfa_FilmProjectsinDevelopmentPotentialTriggerforWriteoffofDevelopmentCostsTimePeriodfromDateofInitialInvestment
Namespace Prefix:	lgfa_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Indicates line item in statement in which net income is reported that includes impairment loss on capitalized cost for film predominantly monetized on its own and film group.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155252-107959

+ Details

Name:	us-gaap_FilmMonetizedOnItsOwnAndFilmGroupImpairmentStatementOfIncomeExtensibleList
Namespace Prefix:	us-gaap_
Data Type:	srt-types:extensibleListItemType
Balance Type:	na
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