Consolidating Financial Information - Convertible Senior Subordinated Notes (Statement of Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Consolidating Financial Information [Line Items]
Net income	$ 32,598	$ 98,185	$ 31,213	$ 162,227
Foreign currency translation adjustments, net of tax	(1,407)	(2,373)	586	(4,166)
Net unrealized loss on available-for-sale securities, net of tax of $557	(15,730)	0	(3,728)	0
Net unrealized gain (loss) on foreign exchange contracts, net of tax	(1,292)	277	1,702	693
Comprehensive income	14,169	96,089	29,773	158,754
Less: Comprehensive loss attributable to noncontrolling interest	8,119	0	8,119	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders	$ 22,288	$ 96,089	37,892	158,754
Convertible Senior Subordinated Notes
Consolidating Financial Information [Line Items]
Net income			31,213	162,227
Foreign currency translation adjustments, net of tax			586	(4,166)
Net unrealized loss on available-for-sale securities, net of tax of $557			(3,728)
Net unrealized gain (loss) on foreign exchange contracts, net of tax			1,702	693
Comprehensive income			29,773	158,754
Less: Comprehensive loss attributable to noncontrolling interest			8,119	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders			37,892	158,754
Convertible Senior Subordinated Notes | Lions Gate Entertainment Corp.
Consolidating Financial Information [Line Items]
Net income			39,332	162,227
Foreign currency translation adjustments, net of tax			(1,440)	(3,473)
Net unrealized loss on available-for-sale securities, net of tax of $557			0
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			37,892	158,754
Less: Comprehensive loss attributable to noncontrolling interest			0	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders			37,892	158,754
Convertible Senior Subordinated Notes | Lions Gate Entertainment Inc.
Consolidating Financial Information [Line Items]
Net income			(37,475)	66,045
Foreign currency translation adjustments, net of tax			(3,876)	(4,383)
Net unrealized loss on available-for-sale securities, net of tax of $557			0
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			(41,351)	61,662
Less: Comprehensive loss attributable to noncontrolling interest			0	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders			(41,351)	61,662
Convertible Senior Subordinated Notes | Non-guarantor Subsidiaries
Consolidating Financial Information [Line Items]
Net income			82,296	280,647
Foreign currency translation adjustments, net of tax			(3,698)	(1,301)
Net unrealized loss on available-for-sale securities, net of tax of $557			(3,728)
Net unrealized gain (loss) on foreign exchange contracts, net of tax			1,702	693
Comprehensive income			76,572	280,039
Less: Comprehensive loss attributable to noncontrolling interest			0	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders			76,572	280,039
Convertible Senior Subordinated Notes | Consolidating Adjustments
Consolidating Financial Information [Line Items]
Net income			(52,940)	(346,692)
Foreign currency translation adjustments, net of tax			9,600	4,991
Net unrealized loss on available-for-sale securities, net of tax of $557			0
Net unrealized gain (loss) on foreign exchange contracts, net of tax			0	0
Comprehensive income			(43,340)	(341,701)
Less: Comprehensive loss attributable to noncontrolling interest			8,119	0
Comprehensive income attributable to Lions Gate Entertainment Corp. shareholders			$ (35,221)	$ (341,701)