Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenues	$ 3,271.5	$ 3,890.0	$ 3,680.5
Expenses:
Direct operating	1,725.9	2,226.1	2,028.2
Distribution and marketing	719.3	1,008.7	835.5
General and administration	486.6	430.4	445.4
Depreciation and amortization	188.5	197.7	163.4
Restructuring and other	24.7	24.3	78.0
Gain on sale of Pantaya	(44.1)	0.0	0.0
Total expenses	3,100.9	3,887.2	3,550.5
Operating income	170.6	2.8	130.0
Interest expense
Interest expense	(181.5)	(191.3)	(163.6)
Interest on dissenting shareholders' liability	0.0	0.0	(35.3)
Interest expense	(181.5)	(191.3)	(198.9)
Shareholder litigation settlements	0.0	0.0	(114.1)
Interest and other income	5.8	8.8	12.0
Other expense	(6.7)	(11.1)	(4.7)
Gain (loss) on extinguishment of debt	0.0	5.4	(1.9)
Gain (loss) on investments	0.5	(0.5)	(87.6)
Equity interests loss	(6.1)	(17.2)	(42.9)
Loss before income taxes	(17.4)	(203.1)	(308.1)
Income tax (provision) benefit	(17.1)	(3.3)	8.5
Net loss	(34.5)	(206.4)	(299.6)
Less: Net loss attributable to noncontrolling interests	15.6	18.0	15.4
Net loss attributable to Lions Gate Entertainment Corp. shareholders	$ (18.9)	$ (188.4)	$ (284.2)
Per share information attributable to Lions Gate Entertainment Corp. shareholders:
Basic net loss per common share (in usd per share)	$ (0.09)	$ (0.86)	$ (1.33)
Diluted net loss per common share (in usd per share)	$ (0.09)	$ (0.86)	$ (1.33)
Weighted average number of common shares outstanding:
Basic (in shares)	220.5	217.9	213.7
Diluted (in shares)	220.5	217.9	213.7
Dividends declared per common share (in usd per share)	$ 0	$ 0	$ 0.18

Business Combination, Liabilities Accrued, Interest Expense

No definition available.

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Namespace Prefix:	lgfa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expense recognized that includes amortization of film and television production or acquisition costs, participation and residual expenses, provision for doubtful accounts, and foreign exchange gains and losses. Participation costs represent contingent consideration payable based on the performance of the film to parties associated with the film, including producers, writers, directors or actors, etc. Residuals represent amounts payable to various unions or guilds.

+ References

No definition available.