Name:	lgf_CollateralMarginPercentage
Namespace Prefix:	lgf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The minimum amount of pledged accounts receivables required as collateral under the Film Credit Facility.

No definition available.

Name:	lgf_FilmCreditFacilityMinimumCollateralAmount
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Carrying value of interest bearing individual production loans.

No definition available.

Name:	lgf_IndividualProductionLoansInterestBearing
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Line of Credit Facility, Performance Conditions, Term 1

No definition available.

Name:	lgf_LineOfCreditFacilityPerformanceConditionsTerm1
Namespace Prefix:	lgf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Line of Credit Facility, Potential Maturity, Term Following Delivery of Motion Picture

No definition available.

Name:	lgf_LineOfCreditFacilityPotentialMaturityTermFollowingDeliveryOfMotionPicture
Namespace Prefix:	lgf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Line of Credit Facility, Term

No definition available.

Name:	lgf_LineOfCreditFacilityTerm
Namespace Prefix:	lgf_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

Carrying value of non-interest bearing production loans.

No definition available.

Name:	lgf_NonInterestBearingProductionLoans
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value of production loans outstanding.

No definition available.

Name:	lgf_ProductionLoans
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The principal value of certain collateral held under the senior credit facility.

No definition available.

Name:	lgf_SubordinatedDebtHeldAsCollateral
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The fair value of certain collateral held under the senior credit facility.

No definition available.

Name:	lgf_SubordinatedDebtHeldAsCollateralFairValue
Namespace Prefix:	lgf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentageRateRangeMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

When presenting a range of interest rates, the lowest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentageRateRangeMinimum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Interest rate stated in the contractual debt agreement.

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Description of when the fee for available but unused credit capacity is required to be paid (for example, annually, quarterly, or monthly).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Name:	us-gaap_LineOfCreditFacilityFrequencyOfCommitmentFeePayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

No definition available.