Employee Benefit Plans - Employee Incentive Programs (Details) - USD ($)	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Profit Sharing Plan
Employee incentive programs
Employer contribution under plan	$ 0	$ 0
401 (k) Plan
Employee incentive programs
Employer contribution under plan	$ 2,000,000	$ 1,800,000
Employer matching contribution (as a percent)	50.00%
Vesting period of employer matching contributions	1 month