Deposits - Interest-bearing or Noninterest-bearing (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
U.S.:
Interest-bearing	$ 12,667,072	$ 11,936,775
Noninterest-bearing	6,931,032	7,978,046
Foreign:
Interest-bearing	945,421	887,608
Noninterest-bearing	967,964	886,600
Total deposits	$ 21,511,489	$ 21,689,029