Related Party Transactions (Related Party Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Related party transactions:
Management fee revenue	$ 9,586	$ 9,267	$ 19,081	$ 18,444
Blackwater [Member]
Related party transactions:
Management fee revenue	7,805	7,754	15,520	15,450
Mercury [Member]
Related party transactions:
Management fee revenue	$ 1,781	$ 1,513	$ 3,561	$ 2,994

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details