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Employee Benefit Plan (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Retirement Benefits [Abstract]      
Employer matching contribution for 401(k) defined compensation plan, percent of match (up to) 6.00%    
Employer matching contributions $ 16.8 $ 16.3 $ 14.1
Employer matching contribution for deferred compensation plan, percent of match (up to) 6.00%