Deposits - Interest-bearing or Noninterest-bearing (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
U.S.:
Interest-bearing	$ 12,145,741	$ 12,731,915
Noninterest-bearing	6,006,013	6,609,483
Foreign:
Interest-bearing	1,281,933	1,017,180
Noninterest-bearing	794,015	974,079
Total deposits	$ 20,227,702	$ 21,332,657