Investments - Schedule of Investments of Consolidated VIEs (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Schedule of Equity Method Investments [Line Items]
Fair value investments	$ 20,154	$ 21,586
Equity method investments in Partnerships
Schedule of Equity Method Investments [Line Items]
Equity method investments in Partnerships	353,540	340,603
Consolidated VIEs
Schedule of Equity Method Investments [Line Items]
Fair value investments	75,276	44,752
Total Investments of Consolidated VIEs	88,260	57,044
Consolidated VIEs | Equity method investments in Partnerships
Schedule of Equity Method Investments [Line Items]
Equity method investments in Partnerships	$ 12,984	$ 12,292