Significant Accounting Policies - Income Taxes (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Minimum percentage of qualifying income of non-taxable subsidiaries	90.00%
Deferred tax liability	$ 43,500,000	$ 45,800,000
Deferred tax benefit	$ 1,200,000	$ 4,700,000
Effective tax rate	11.30%	39.70%
Uncertain tax positions	$ 0