Deposits - Summary of Deposit Accounts (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deposits [Abstract]
Demand, noninterest-bearing	$ 655,953	$ 192,773
Demand, interest-bearing	438,765	254,478
Money market and savings	577,448	228,048
Time deposits, $250 and over	134,324	45,616
Time deposits, other	491,983	225,857
Total deposits	$ 2,298,473	$ 946,772
Demand, noninterest-bearing	28.54%	20.36%
Demand, interest-bearing	19.09%	26.88%
Money market and savings	25.12%	24.09%
Time deposits, $250 and over	5.85%	4.82%
Time deposits, other	21.40%	23.85%
Total deposits	100.00%	100.00%