Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Noninterest-bearing demand deposits	$ 2,993,243	$ 3,099,526
Interest-bearing demand deposits	2,686,431	2,940,442
Money market deposit accounts	2,457,569	2,629,882
Savings deposits	2,275,020	2,303,760
Time deposits	1,052,285	1,327,555
Deposits	11,464,548	12,301,165
Aggregate amount of certificates of deposit with a minimum denomination of $100,000	355,000	439,500
Deposits in accounts exceeding $250,000	4,031,000	4,194,000
Contractual maturity of the certificate accounts
Due within 12 months	754,564	890,101
Due between 12 and 24 months	186,803	288,284
Due between 24 and 36 months	46,500	80,251
Due between 36 and 48 months	26,734	33,843
Due between 48 and 60 months	33,691	29,692
After 60 months	3,993	5,384
Total time deposits	1,052,285	1,327,555
Interest expense incurred on deposits
Interest-bearing demand deposits	1,517	1,660	$ 3,358
Money market deposit accounts	3,381	2,597	7,021
Savings deposits	2,339	2,413	2,614
Time deposits	6,883	12,452	22,903
Total interest expense on deposits	$ 14,120	$ 19,122	$ 35,896