Off-Balance Sheet Arrangements, Commitments, and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Commitments [Line Items]
Commitments	$ 2,489,203	$ 2,507,911
Off-balance sheet, credit loss, liability	23,641	27,290	$ 31,118	$ 3,279
Commitments to invest in qualified affordable housing partnerships	15,428	17,200
Trust custodial assets under custody	17,080,000	18,110,000
Commitments to extend credit
Commitments [Line Items]
Commitments	2,443,791	$ 2,464,656
Commitments to extend credit | Commercial and industrial
Commitments [Line Items]
Commitments	$ 1,830,000