Investments - Held to Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]
Amortized cost, net of accrued interest	$ 49,611	$ 49,103
Accrued interest	93	30
Total	49,704	49,133
Aggregate Fair Value	49,593	49,098
Gross unrealized gains	5	1
Gross unrealized losses	$ (23)	$ (6)

Amount, before allowance for credit loss, of accrued interest on investment in debt security measured at amortized cost (held-to-maturity).

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Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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