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Goodwill and Other Acquisition-Related Intangible Assets - Schedule of Goodwill Assets by Business Segment (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 796,942
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	1,018
Ending balance	797,960
Community banking
Goodwill [Roll Forward]
Beginning balance	687,754
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	687,754
Specialty finance
Goodwill [Roll Forward]
Beginning balance	37,193
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	1,018
Ending balance	38,211
Wealth management
Goodwill [Roll Forward]
Beginning balance	71,995
Goodwill Acquired	0
Impairment Loss	0
Goodwill Adjustments	0
Ending balance	$ 71,995

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