Borrowings - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Borrowings
Borrowings	$ 1,233,762	$ 930,392
Federal Reserve discount window borrowings
Borrowings
Borrowings	200,000	20,000
Short-Term Subordinated Debt
Borrowings
Borrowings	21,000	21,000
FHLB Advances
Borrowings
Borrowings	859,211	859,392
American Financial Exchange borrowing
Borrowings
Borrowings		$ 30,000
Credit linked notes
Borrowings
Borrowings	$ 153,551