Deposits - Summary of Deposit Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	$ 1,679,033	$ 1,781,619
Interest-bearing checking	3,092,054	3,117,358
Money market	1,039,553	1,033,436
Savings	659,027	681,377
Certificates of deposit under $250 thousand	1,496,741	1,444,640
Certificates of deposit $250 thousand and over	534,030	522,808
Deposits	$ 8,500,438	$ 8,581,238
Percentage Of Interest and Noninterest Bearing Domestic Deposit Liabilities To Deposit Liabilities [Abstract]
Noninterest-bearing demand	19.80%	20.80%
Interest-bearing checking	36.40%	36.30%
Money market	12.20%	12.00%
Savings	7.80%	8.00%
Certificates of deposit under $250 thousand	17.50%	16.80%
Certificates of deposit $250 thousand and over	6.30%	6.10%
Total deposits	100.00%	100.00%