Deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Balance:
Non-interest-bearing	$ 11,201,859	$ 11,410,018	$ 9,908,183
NOW and interest-bearing demand deposits	6,340,168	5,865,546	5,720,947
Wealth management deposits	1,408,790	1,469,064	1,347,817
Money market	18,074,733	17,975,191	15,617,717
Savings	6,576,251	6,372,499	5,959,774
Time certificates of deposit	9,968,237	9,420,031	7,894,420
Total deposits	$ 53,570,038	$ 52,512,349	$ 46,448,858
Mix:
Non-interest-bearing	21.00%	22.00%	21.00%
NOW and interest-bearing demand deposits	12.00%	11.00%	12.00%
Wealth management deposits	3.00%	3.00%	3.00%
Money market	34.00%	34.00%	34.00%
Savings	12.00%	12.00%	13.00%
Time certificates of deposit	18.00%	18.00%	17.00%
Total deposits	100.00%	100.00%	100.00%