Commitments, Contingencies, and Guarantees - Credit Commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Credit Commitments [Line Items]
Credit Commitments	$ 3,249,761	$ 3,136,796
Unfunded Commitments to Extend Credit
Credit Commitments [Line Items]
Credit Commitments	3,090,969	2,982,673
Standby Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	135,279	135,167
Commercial Letters of Credit
Credit Commitments [Line Items]
Credit Commitments	$ 23,513	$ 18,956