XML 139 R120.htm IDEA: XBRL DOCUMENT v3.19.1

Segment Information (Segment Information) (Details) $ in Millions	3 Months Ended								12 Months Ended
	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2019 USD ($) segment	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Revenues	$ 913.7	$ 933.2	$ 901.0	$ 932.7	$ 1,040.2	$ 1,142.7	$ 940.8	$ 1,005.3	$ 3,680.5	$ 4,129.1	$ 3,201.5
Number of reportable business segments | segment									3
Gross contribution									$ 871.4	968.4	510.1
Segment general and administration									246.8	254.4	182.4
Segment profit (loss)									624.6	714.0	327.7
Reportable Segments
Segment Reporting Information [Line Items]
Segment general and administration									246.8	254.4	182.4
Segment profit (loss)									624.6	714.0	327.7
Reportable Segments | Television Production
Segment Reporting Information [Line Items]
Revenues									920.9	1,033.2	892.8
Gross contribution									109.6	151.3	107.4
Segment general and administration									43.5	40.3	32.1
Segment profit (loss)									66.1	111.0	75.3
Reportable Segments | Media Networks
Segment Reporting Information [Line Items]
Revenues									1,461.0	1,411.2	426.3
Gross contribution									534.0	530.0	175.3
Segment general and administration									97.7	100.9	45.0
Segment profit (loss)									436.3	429.1	130.3
Reportable Segments | Motion Picture
Segment Reporting Information [Line Items]
Revenues									1,464.4	1,822.1	1,920.6
Gross contribution									234.1	292.6	237.8
Segment general and administration									105.6	113.2	105.3
Segment profit (loss)									128.5	179.4	132.5
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues									(165.8)	(137.4)	(38.2)
Gross contribution									(6.3)	(5.5)	(10.4)
Segment profit (loss)									(6.3)	(5.5)	(10.4)
Intersegment Eliminations | Television Production
Segment Reporting Information [Line Items]
Revenues									(154.8)	(126.4)	(30.7)
Intersegment Eliminations | Media Networks
Segment Reporting Information [Line Items]
Revenues									(0.1)	(0.3)	(0.9)
Intersegment Eliminations | Motion Picture
Segment Reporting Information [Line Items]
Revenues									$ (10.9)	$ (10.7)	$ (6.6)

X

- Definition

Segment revenues less segment direct operating and distribution and marketing expenses. Also excludes purchase accounting and related adjustments.

+ References

No definition available.

+ Details

Name:	lgfa_GrossSegmentContribution
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Gross segment contribution less segment general and administration expenses.

+ References

No definition available.

+ Details

Name:	lgfa_SegmentProfitLoss
Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_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:	us-gaap_StatementBusinessSegmentsAxis=lgfa_MotionPictureMember
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: