Deposits - Composition of Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Statistical Disclosure for Banks [Abstract]
Noninterest-bearing demand deposit accounts	$ 1,667,247	$ 1,820,490
Interest-bearing deposit accounts:
Interest-bearing demand accounts	379,779	212,357
Savings accounts and money market accounts	2,441,349	2,759,969
NOW accounts	48,270	50,224
Certificate of deposit accounts:
Less than $100	783,159	241,322
$100 through $250	455,254	270,790
Greater than $250	375,360	409,910
Total interest-bearing deposit accounts	4,483,171	3,944,572
Total deposits	$ 6,150,418	$ 5,765,062