Commitments and Contingencies - Years In Which Commitments are Expected to be Paid (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Other Commitments [Line Items]
Commitments to contribute capital to small business investment companies and CRA-related loan pools	$ 75,426
2023
Other Commitments [Line Items]
Commitments to contribute capital to small business investment companies and CRA-related loan pools	42,043
2024
Other Commitments [Line Items]
Commitments to contribute capital to small business investment companies and CRA-related loan pools	$ 33,383