Interest Earning Deposits with Banks, Other Short-Term Investments and Restricted Cash (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Capital Requirements on Foreign Financial Institutions [Line Items]
Interest earning deposits with banks	$ 202,946,000	$ 228,955,000
Average interest rate on deposits with banks	5.58%	1.79%
Other short-term investments	$ 6,024,000	$ 0
Debt securities, available-for-sale, weighted average yield	4.65%
Restricted cash	$ 51,837,000	42,160,000
Obligation to repay	51,200,000	$ 41,600,000
Letter of Credit
Capital Requirements on Foreign Financial Institutions [Line Items]
Restricted cash	$ 600,000