XML 112 R101.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Segment Information (Acquisition of Investment in Films and Television Programs by Segment) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |
Acquisition of investment in films and television programs and program rights | $ 213 | $ 236 | $ 660 | $ 771
Reportable Segments | Motion Pictures |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Acquisition of investment in films and television programs and program rights | 76 | 140 | 267 | 504
Reportable Segments | Television Production |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Acquisition of investment in films and television programs and program rights | 106 | 96 | 345 | 267
Reportable Segments | Media Networks |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Acquisition of investment in films and television programs and program rights | $ 31 | $ 0 | $ 48 | $ 0

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: | us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=lgfa_MotionPicturesMember
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: |