Restructuring - Additional Information (Details) - USD ($)	1 Months Ended	12 Months Ended
	Nov. 30, 2024	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Reduction in force	40.00%	40.00%
Restructuring and other charges		$ 61,437,000	$ 4,642,000	$ 0
Employee Severance And Other
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		61,400,000	4,600,000
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		8,800,000	4,000,000.0
Stock-Based Compensation Equity Modifications
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 2,100,000	$ 600,000

- Definition

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