Premises, Equipment and Software - Schedule of Premises Equipment and Software (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	$ 958,947	$ 925,701
Less: Accumulated depreciation and amortization	(593,096)	(555,069)
Net premises, equipment and software	365,851	370,632
Land
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	92,094	92,125
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	304,426	303,934
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	100,125	89,619
Furniture, equipment and software
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	450,458	422,495
Construction in progress
Property, Plant and Equipment [Line Items]
Total premises, equipment and software	$ 11,844	$ 17,528