Related Party Transactions - (Related Party Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Related Party Revenue [Abstract]
Management fees revenue	$ 36,811	$ 37,004	$ 37,073
Blackwater [Member]
Related Party Revenue [Abstract]
Management fees revenue	29,903	29,702	29,825
Mercury [Member]
Related Party Revenue [Abstract]
Management fees revenue	$ 6,908	$ 7,302	$ 7,248

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