Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023
Supplemental Cash Flow Information [Abstract]
Establishment of lease liability in exchange for right of use asset	$ 3,116	$ 0
Non-cash investing activities:
Other equity method investment	2,000	0
Non-cash financing activities:
Dividends declared but not paid	16,780	14,800	$ 15,049
Member distributions declared but not paid	$ 11,464	$ 10,754