Revenue from Contracts with Customers - Summary of Revenues From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenue from External Customer [Line Items]
Revenue from contracts with customers	$ 60,778	$ 64,005
Non-interest income	92,606	99,353
Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	38,895	42,589
Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	2,225	3,622
Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	7,789	7,924
Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	11,869	9,870
Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	31,828
Non-interest income		35,348
Operating Segments
Revenue from External Customer [Line Items]
Non-interest income	84,552	99,319
Operating Segments | Commercial Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	10,280	12,642
Non-interest income	28,958	34,280
Operating Segments | Commercial Banking | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	4,739	5,842
Operating Segments | Commercial Banking | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	2,225	3,622
Operating Segments | Commercial Banking | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	3,316	3,178
Operating Segments | Commercial Banking | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0
Operating Segments | Commercial Banking | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	18,678
Non-interest income		21,638
Operating Segments | Healthcare Financial Services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	29,369	31,061
Non-interest income	29,390	31,061
Operating Segments | Healthcare Financial Services | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	19,069	22,052
Operating Segments | Healthcare Financial Services | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0
Operating Segments | Healthcare Financial Services | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0
Operating Segments | Healthcare Financial Services | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	10,300	9,009
Operating Segments | Healthcare Financial Services | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	21
Non-interest income		0
Operating Segments | Consumer Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	20,189	19,364
Non-interest income	26,204	33,978
Operating Segments | Consumer Banking | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	15,294	14,796
Operating Segments | Consumer Banking | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0
Operating Segments | Consumer Banking | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	4,478	4,751
Operating Segments | Consumer Banking | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	417	(183)
Operating Segments | Consumer Banking | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	6,015
Non-interest income		14,614
Segment Reporting, Reconciling Item, Corporate Nonsegment
Revenue from External Customer [Line Items]
Revenue from contracts with customers	940	938
Non-interest income	8,054	34
Segment Reporting, Reconciling Item, Corporate Nonsegment | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(207)	(101)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0
Segment Reporting, Reconciling Item, Corporate Nonsegment | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(5)	(5)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	1,152	1,044
Segment Reporting, Reconciling Item, Corporate Nonsegment | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	$ 7,114
Non-interest income		$ (904)