Borrowings - Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Borrowings
Total borrowings	$ 546,028	$ 260,811
Securities sold under repurchase agreements
Borrowings
Total borrowings	25,894	32,156
Other short-term borrowings
Borrowings
Total borrowings	435,000	90,000
Junior subordinated debentures
Borrowings
Total borrowings	25,773	25,773
Subordinated debentures
Borrowings
Total borrowings	$ 59,361	59,297
Senior notes
Borrowings
Total borrowings		44,585
Notes payable and other borrowings
Borrowings
Total borrowings		$ 9,000