Deposits - Summary of Deposit Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	$ 1,998,590	$ 2,113,289
Interest-bearing checking	2,938,992	3,079,249
Money market	1,093,983	1,192,353
Savings	885,066	974,403
Certificates of deposit $250 thousand and under	1,233,856	901,505
Certificates of deposit over $250 thousand	386,456	306,672
Deposits	$ 8,536,943	$ 8,567,471
Percentage Of Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	23.40%	24.70%
Interest-bearing checking	34.40%	35.90%
Money market	12.80%	13.90%
Savings	10.40%	11.40%
Certificates of deposit $250 thousand and under	14.50%	10.50%
Certificates of deposit over $250 thousand	4.50%	3.60%
Total deposits	100.00%	100.00%