Participations and Residuals (Details)	3 Months Ended
Jun. 30, 2012
Participations And Residuals [abstract]
Percentage of accrued participations and residuals payable within one year	68.00%

Amount of participations and residuals that have been accrued for and are expected to be paid within one year.

No definition available.

Name:	lgf_PercentageOfAccruedParticipationsAndResidualsPayableWithinOneYear
Namespace Prefix:	lgf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration