Acquisition and Divestiture - Summary of Unpaid Principal Balance to Fair Value of PCD Loans and Leases by Portfolio Segment (Parenthetical) (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended
		Apr. 01, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs			$ (122,128)	$ (101,267)	$ (379,291)	$ (227,919)
PCD Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Charge-offs		$ (33,000)				$ (33,000)
Other discount		(106,814)
Non PCD Acquired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other discount	[1]	(260,498)
Non PCD Acquired Loans Not Expected To Be Collected [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other discount		$ 242,000

[1] Includes approximately $242 million of principal balances not expected to be collected.