Deposits - Summary of Deposit Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	$ 2,288,902	$ 1,732,452
Interest-bearing checking	2,997,064	2,219,658
Money market	1,312,757	1,577,385
Savings	1,044,895	677,101
Certificates of deposit $250 thousand and under	807,211	623,393
Certificates of deposit over $250 thousand	226,970	135,834
Deposits	$ 8,677,799	$ 6,965,823
Percentage Of Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	26.40%	24.90%
Interest-bearing checking	34.50%	31.90%
Money market	15.10%	22.60%
Savings	12.00%	9.70%
Certificates of deposit $250 thousand and under	9.30%	8.90%
Certificates of deposit over $250 thousand	2.70%	2.00%
Total deposits	100.00%	100.00%