Business Segment Reporting - Schedule of Noninterest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Salaries and employee benefits	$ 298,080	$ 281,087
Net occupancy and equipment	48,990	47,131
Computer software and maintenance	22,556	20,318
Marketing and business development	20,670	19,990
Legal and professional fees	22,403	26,290
Bankcard processing, rewards and related cost	30,747	32,002
Other expenses	62,044	62,589
Noninterest expense	505,490	489,407
Consumer
Segment Reporting Information [Line Items]
Noninterest expense	243,012	242,560
Commercial
Segment Reporting Information [Line Items]
Noninterest expense	159,151	148,737
Wealth Management
Segment Reporting Information [Line Items]
Noninterest expense	52,168	46,863
Operating Segments | Consumer
Segment Reporting Information [Line Items]
Salaries and employee benefits	110,983	104,815
Net occupancy and equipment	32,917	31,568
Computer software and maintenance	6,182	6,412
Marketing and business development	7,916	8,050
Legal and professional fees	1,545	840
Bankcard processing, rewards and related cost	22,072	27,360
Other expenses	27,455	29,291
Noninterest expense	243,012	242,560
Operating Segments | Commercial
Segment Reporting Information [Line Items]
Salaries and employee benefits	56,642	50,991
Net occupancy and equipment	7,207	6,439
Computer software and maintenance	3,438	2,975
Marketing and business development	2,163	2,108
Legal and professional fees	2,243	1,646
Bankcard processing, rewards and related cost	9,661	11,684
Other expenses	3,800	3,783
Noninterest expense	159,151	148,737
Operating Segments | Wealth Management
Segment Reporting Information [Line Items]
Salaries and employee benefits	36,907	32,285
Net occupancy and equipment	2,991	2,805
Computer software and maintenance	1,746	1,695
Marketing and business development	1,385	1,564
Legal and professional fees	871	1,076
Bankcard processing, rewards and related cost	0	0
Other expenses	3,584	3,164
Noninterest expense	52,168	46,863
Corporate And Eliminations
Segment Reporting Information [Line Items]
Noninterest expense	51,159	51,247
Intersegment Eliminations
Segment Reporting Information [Line Items]
Noninterest expense	(112,623)	(107,608)
Intersegment Eliminations | Consumer
Segment Reporting Information [Line Items]
Noninterest expense	33,942	34,224
Intersegment Eliminations | Commercial
Segment Reporting Information [Line Items]
Noninterest expense	73,997	69,111
Intersegment Eliminations | Wealth Management
Segment Reporting Information [Line Items]
Noninterest expense	4,684	4,274
Corp / Other
Segment Reporting Information [Line Items]
Salaries and employee benefits	93,548	92,996
Net occupancy and equipment	5,875	6,319
Computer software and maintenance	11,190	9,236
Marketing and business development	9,206	8,268
Legal and professional fees	17,744	22,728
Bankcard processing, rewards and related cost	(986)	(7,042)
Other expenses	$ 27,205	$ 26,351