Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Interest-Bearing Deposit Liabilities [Abstract]
Interest-bearing demand deposits	$ 10,680,625	$ 8,721,397
Money market accounts	12,902,294	14,830,934
Savings accounts	1,071,258	1,416,246
Time deposits	7,534,393	2,964,078
Brokered deposits	6,042,999	5,299,005
Total interest-bearing deposits	38,231,569	33,231,660
Aggregate amount of time deposits of $250,000 or more	3,550,000	$ 1,200,000
Time Deposits, by Maturity [Abstract]
Maturing within one year	9,314,075
Between 1 - 2 years	1,078,498
2 - 3 years	342,629
3 - 4 years	23,210
4 - 5 years	19,841
Thereafter	4,228
Total	$ 10,782,481