Deposits (Schedule of Detailed Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Banking and Thrift, Interest [Abstract]
Noninterest-bearing deposits	$ 10,597,461	$ 11,030,515
Interest-bearing retail transaction and savings deposits	11,327,725	10,680,741
Interest-bearing public fund deposits, Public fund transaction and savings deposits	3,127,427	3,069,341
Interest-bearing public fund deposits, Public fund time deposits	85,072	73,674
Total interest-bearing public fund deposits	3,212,499	3,143,015
Retail time deposits	4,348,265	4,246,027
Brokered time deposits	6,901	589,761
Total interest-bearing deposits	18,895,390	18,659,544
Total deposits	$ 29,492,851	$ 29,690,059