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Employee Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Employee Benefits (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Non-discretionary contributions	$ 4.6	$ 4.3	$ 3.2
Plan assets	27.4	23.8
Underfunded pension obligation	2.8	2.2
Net periodic benefit cost	$ 0.5	$ 1.1	$ 0.9

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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