Deposits - Schedule of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Balance:
Non-interest-bearing	$ 10,420,401	$ 12,668,160
NOW and interest-bearing demand deposits	5,797,649	5,591,986
Wealth management deposits	1,614,499	2,463,833
Money market	15,149,215	12,886,795
Savings	5,790,334	4,556,635
Time certificates of deposit	6,625,072	4,735,135
Total deposits	$ 45,397,170	$ 42,902,544
Mix:
Non-interest bearing	23.00%	30.00%
NOW and interest-bearing demand deposits	13.00%	13.00%
Wealth management deposits	4.00%	5.00%
Money market	33.00%	30.00%
Savings	13.00%	11.00%
Time certificates of deposit	14.00%	11.00%
Total deposits	100.00%	100.00%