Commitments and Contingencies - Schedule of Credit-Related Commitments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Loan commitments
Commitments to Extend Credit
Expire in One Year or Less	$ 4,769,476
Expire After One Year Through Three Years	3,376,989
Expire After Three Years Through Five Years	632,152
Expire After Five Years	143,822
Total	8,922,439	$ 9,141,447
Commercial letters of credit and standby letters of credit (“SBLCs”)
Commitments to Extend Credit
Expire in One Year or Less	1,206,498
Expire After One Year Through Three Years	357,450
Expire After Three Years Through Five Years	150,329
Expire After Five Years	1,122,720
Total	2,836,997	2,610,761
Commitments to Extend Credit
Commitments to Extend Credit
Expire in One Year or Less	5,975,974
Expire After One Year Through Three Years	3,734,439
Expire After Three Years Through Five Years	782,481
Expire After Five Years	1,266,542
Total	$ 11,759,436	$ 11,752,208