Revenue from Contracts with Customers - Summary of Revenues From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue from External Customer [Line Items]
Revenue from contracts with customers	$ 59,430	$ 61,834	$ 120,208	$ 125,839
Non-interest income	94,657	42,298	187,263	141,651
Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	40,934	41,027	79,829	83,616
Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	2,520	3,943	4,745	7,565
Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	7,779	8,556	15,568	16,480
Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	8,197	8,308	20,066	18,178
Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	35,227
Non-interest income		(19,536)	67,055	15,812
Operating Segments
Revenue from External Customer [Line Items]
Non-interest income	83,906	86,367	168,458	185,686
Operating Segments | Commercial Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	10,423	12,311	20,703	24,953
Non-interest income	30,628	34,510	59,586	68,790
Operating Segments | Commercial Banking | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	4,550	5,160	9,289	11,002
Operating Segments | Commercial Banking | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	2,520	3,943	4,745	7,565
Operating Segments | Commercial Banking | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	3,353	3,208	6,669	6,386
Operating Segments | Commercial Banking | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating Segments | Commercial Banking | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	20,205
Non-interest income		22,199	38,883	43,837
Operating Segments | Healthcare Financial Services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	28,359	27,465	57,728	58,526
Non-interest income	28,687	27,465	58,077	58,526
Operating Segments | Healthcare Financial Services | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	20,282	20,460	39,351	42,512
Operating Segments | Healthcare Financial Services | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating Segments | Healthcare Financial Services | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating Segments | Healthcare Financial Services | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	8,077	7,005	18,377	16,014
Operating Segments | Healthcare Financial Services | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	328
Non-interest income		0	349	0
Operating Segments | Consumer Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	21,116	21,322	41,305	40,686
Non-interest income	24,591	24,392	50,795	58,370
Operating Segments | Consumer Banking | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	16,268	15,552	31,562	30,348
Operating Segments | Consumer Banking | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0	0
Operating Segments | Consumer Banking | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	4,432	5,354	8,910	10,105
Operating Segments | Consumer Banking | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	416	416	833	233
Operating Segments | Consumer Banking | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	3,475
Non-interest income		3,070	9,490	17,684
Segment Reporting, Reconciling Item, Corporate Nonsegment
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(468)	736	472	1,674
Non-interest income	10,751	(44,069)	18,805	(44,035)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(166)	(145)	(373)	(246)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0	0
Segment Reporting, Reconciling Item, Corporate Nonsegment | Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(6)	(6)	(11)	(11)
Segment Reporting, Reconciling Item, Corporate Nonsegment | Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(296)	887	856	1,931
Segment Reporting, Reconciling Item, Corporate Nonsegment | Other sources of non-interest income
Revenue from External Customer [Line Items]
Revenue from contracts with customers	$ 11,219
Non-interest income		$ (44,805)	$ 18,333	$ (45,709)