Deposits (Schedule of Detailed Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Banking and Thrift, Interest [Abstract]
Noninterest-bearing deposits	$ 11,030,515	$ 13,645,113
Interest-bearing retail transaction and savings deposits	10,680,741	10,757,495
Interest-bearing public fund deposits, Public fund transaction and savings deposits	3,069,341	3,132,828
Interest-bearing public fund deposits, Public fund time deposits	73,674	111,397
Total interest-bearing public fund deposits	3,143,015	3,244,225
Retail time deposits	4,246,027	1,418,596
Brokered time deposits	589,761	4,920
Total interest-bearing deposits	18,659,544	15,425,236
Total deposits	$ 29,690,059	$ 29,070,349