Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Beginning balance	$ 452,390	$ 452,390
Reallocation	0	0
Acquisition	30,512
Divestiture	(2,462)
Ending balance	480,440	452,390
Wholesale Banking Reporting Unit
Goodwill [Roll Forward]
Beginning balance	171,636	171,636
Reallocation	4,197	0
Acquisition	0
Divestiture	0
Ending balance	175,833	171,636
Community Banking Reporting Unit
Goodwill [Roll Forward]
Beginning balance	141,622	256,323
Reallocation	0	(114,701)
Acquisition	30,512
Divestiture	0
Ending balance	172,134	141,622
Consumer Banking Reporting Unit
Goodwill [Roll Forward]
Beginning balance	114,701	0
Reallocation	0	114,701
Acquisition	0
Divestiture	0
Ending balance	114,701	114,701
Wealth Management Reporting Unit
Goodwill [Roll Forward]
Beginning balance	24,431	24,431
Reallocation	(4,197)	0
Acquisition	0
Divestiture	(2,462)
Ending balance	$ 17,772	$ 24,431