Goodwill and Other Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Line Items]
Goodwill, beginning balance	$ 175,510
Goodwill, acquired during period	0
Goodwill, ending balance	175,510
Banking1
Goodwill [Line Items]
Goodwill, beginning balance	138,476
Goodwill, acquired during period	0
Goodwill, ending balance	138,476
Wealth Management [Member]
Goodwill [Line Items]
Goodwill, beginning balance	15,434
Goodwill, acquired during period	0
Goodwill, ending balance	15,434
Insurance [Member]
Goodwill [Line Items]
Goodwill, beginning balance	21,600
Goodwill, acquired during period	0
Goodwill, ending balance	$ 21,600