Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Mar. 31, 2021
Non-cash financing activities:
Establishment of lease liability in exchange for right of use asset	$ 7,950	$ 61,597
Dividends declared but not paid	12,916	10,775	$ 11,201
Member distributions declared but not paid	11,769	7,906
Establishment of net deferred tax assets related to offerings	$ 19,783	$ 91,580