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Investments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2023
Schedule of Equity Method Investments [Line Items]
Unrealized gain (loss) on investments held as collateral			$ (45)	$ 18,578
Unrealized gain/(loss) on secured borrowings, fair value adjustment		$ (821)	230	(915)
Reported Value Measurement
Schedule of Equity Method Investments [Line Items]
Fair value investments	$ 6,430		$ 6,430		$ 7,429
Equity method investments in Partnerships
Schedule of Equity Method Investments [Line Items]
Percent interest in partnerships	1.00%		1.00%
Investment, Held As Collateral
Schedule of Equity Method Investments [Line Items]
Unrealized gain (loss) on investments held as collateral	$ 637	$ 821	$ (230)	$ 915
Unrealized gain/(loss) on secured borrowings, fair value adjustment	$ 637

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Secured Borrowings, Unrealized Gain (Loss) On Fair Value Adjustment

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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