Share-Based Compensation - Summary Of Total Remaining Unrecognized Compensation Cost (Parenthetical) (Details) - shares shares in Millions	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Restricted Stock And Restricted Stock Unit \| Two Thousand And Nineteen Lions Gate Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based payment arrangement shares with held for tax obligation	3.0	1.5	1.8

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details