Deposits - Schedule of Bank’s Deposit Composition (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Deposits [Abstract]
Noninterest-bearing demand	$ 1,552,920	$ 1,433,952
Interest-bearing transaction	864,462	1,038,154
Savings and money market	2,845,653	3,624,813
Time deposits	2,770,972	3,036,687
Total	8,034,007	9,133,606
Cumulative amount of fair value hedging adjustments	276
Deposits
Deposits [Abstract]
Cumulative amount of fair value hedging adjustments	$ 13,386	$ 705