Revenue from Contracts with Customers - Summary of Revenues From Contracts With Customers (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Revenue from contracts with customers	$ 245,699	$ 233,404	$ 268,672
Total non-interest income	251,899	314,337	440,783
Ametros
Revenue from External Customer [Line Items]
Contracts with customers contract liabilities	23,000
Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	161,144	169,318	198,472
Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	14,170	17,633	21,498
Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	33,234	28,999	40,277
Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	37,151	17,454	8,425
Other sources of non-interest income
Revenue from External Customer [Line Items]
Total non-interest income	6,200	80,933	172,111
Operating Segments
Revenue from External Customer [Line Items]
Total non-interest income	366,949	328,229	395,714
Operating Segments \| Commercial Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	47,196	45,164	56,297
Total non-interest income	143,104	125,265	164,044
Operating Segments \| Commercial Banking \| Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	19,904	15,987	23,449
Operating Segments \| Commercial Banking \| Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	14,170	17,633	21,498
Operating Segments \| Commercial Banking \| Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	13,122	11,544	11,350
Operating Segments \| Commercial Banking \| Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0
Operating Segments \| Commercial Banking \| Other sources of non-interest income
Revenue from External Customer [Line Items]
Total non-interest income	95,908	80,101	107,747
Operating Segments \| Healthcare Financial Services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	110,207	88,113	104,586
Total non-interest income	110,207	88,113	104,586
Operating Segments \| Healthcare Financial Services \| Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	78,211	81,051	97,654
Operating Segments \| Healthcare Financial Services \| Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	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
Operating Segments \| Healthcare Financial Services \| Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	31,996	7,062	6,932
Operating Segments \| Healthcare Financial Services \| Other sources of non-interest income
Revenue from External Customer [Line Items]
Total non-interest income	0	0	0
Operating Segments \| Consumer Banking
Revenue from External Customer [Line Items]
Revenue from contracts with customers	84,791	95,215	106,017
Total non-interest income	113,638	114,851	127,084
Operating Segments \| Consumer Banking \| Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	63,591	71,539	75,567
Operating Segments \| Consumer Banking \| Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0
Operating Segments \| Consumer Banking \| Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	20,133	17,477	28,957
Operating Segments \| Consumer Banking \| Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	1,067	6,199	1,493
Operating Segments \| Consumer Banking \| Other sources of non-interest income
Revenue from External Customer [Line Items]
Total non-interest income	28,847	19,636	21,067
Corporate and Reconciling
Revenue from External Customer [Line Items]
Revenue from contracts with customers	3,505	4,912	1,772
Total non-interest income	(115,050)	(13,892)	45,069
Corporate and Reconciling \| Deposit service fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(562)	741	1,802
Corporate and Reconciling \| Loan and lease related fees
Revenue from External Customer [Line Items]
Revenue from contracts with customers	0	0	0
Corporate and Reconciling \| Wealth and investment services
Revenue from External Customer [Line Items]
Revenue from contracts with customers	(21)	(22)	(30)
Corporate and Reconciling \| Other
Revenue from External Customer [Line Items]
Revenue from contracts with customers	4,088	4,193	0
Corporate and Reconciling \| Other sources of non-interest income
Revenue from External Customer [Line Items]
Total non-interest income	$ (118,555)	$ (18,804)	$ 43,297

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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