Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues	$ 4,016.9	$ 3,854.8	$ 3,604.3
Expenses:
Direct operating	2,189.2	2,312.5	2,064.2
Distribution and marketing	911.4	801.7	861.0
General and administration	490.5	531.1	475.4
Depreciation and amortization	192.2	180.3	177.9
Restructuring and other	508.5	411.9	16.8
Goodwill and intangible asset impairment	663.9	1,475.0	0.0
Total expenses	4,955.7	5,712.5	3,595.3
Operating income (loss)	(938.8)	(1,857.7)	9.0
Interest expense	(269.8)	(221.2)	(176.0)
Interest and other income	22.1	6.4	30.8
Other expense	(26.9)	(26.9)	(10.9)
Gain (loss) on extinguishment of debt	19.9	57.4	(28.2)
Gain on investments, net	3.5	44.0	1.3
Equity interests income (loss)	8.7	0.5	(3.0)
Loss before income taxes	(1,181.3)	(1,997.5)	(177.0)
Income tax benefit (provision)	65.0	(21.3)	(28.4)
Net loss	(1,116.3)	(2,018.8)	(205.4)
Less: Net loss attributable to noncontrolling interests	13.4	8.6	17.2
Net loss attributable to Lions Gate Entertainment Corp. shareholders	$ (1,102.9)	$ (2,010.2)	$ (188.2)
Per share information attributable to Lions Gate Entertainment Corp. shareholders:
Basic net loss per common share (in usd per share)	$ (4.77)	$ (8.82)	$ (0.84)
Diluted net loss per common share (in usd per share)	$ (4.77)	$ (8.82)	$ (0.84)
Weighted average number of common shares outstanding:
Basic (in shares)	233.6	227.9	224.1
Diluted (in shares)	233.6	227.9	224.1