Loans - Allowance for Credit Losses by Portfolio Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for loan losses
Balance, beginning of period	$ 65,917	$ 47,547	$ 47,766
Provision for (benefit from) credit losses	17,035	18,050	3,000
Loans charged-off	(9,672)	(2,587)	(4,861)
Recoveries	1,862	2,907	1,642
Balance, end of period	80,398	65,917	47,547
Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	5,256
Balance, end of period		5,256
Commercial and Industrial
Allowance for loan losses
Balance, beginning of period	40,785	31,622	29,235
Provision for (benefit from) credit losses	10,445	9,248	5,136
Loans charged-off	(9,242)	(2,321)	(4,296)
Recoveries	1,118	2,236	1,547
Balance, end of period	29,523	40,785	31,622
Commercial and Industrial | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	(13,583)
Balance, end of period		(13,583)
Commercial Real Estate
Allowance for loan losses
Balance, beginning of period	19,754	13,198	14,033
Provision for (benefit from) credit losses	3,996	6,168	(488)
Loans charged-off	(83)	0	(375)
Recoveries	12	388	28
Balance, end of period	27,546	19,754	13,198
Commercial Real Estate | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	3,867
Balance, end of period		3,867
Residential real estate
Allowance for loan losses
Balance, beginning of period	2,963	836	1,435
Provision for (benefit from) credit losses	2,457	2,028	(581)
Loans charged-off	(13)	(122)	(42)
Recoveries	682	221	24
Balance, end of period	16,345	2,963	836
Residential real estate | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	10,256
Balance, end of period		10,256
Public finance
Allowance for loan losses
Balance, beginning of period	1,664	1,544	2,604
Provision for (benefit from) credit losses	(217)	120	(1,060)
Loans charged-off	0	0	0
Recoveries	0	0	0
Balance, end of period	5,337	1,664	1,544
Public finance | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	3,890
Balance, end of period		3,890
Consumer
Allowance for loan losses
Balance, beginning of period	352	235	288
Provision for (benefit from) credit losses	400	199	52
Loans charged-off	(334)	(144)	(148)
Recoveries	50	62	43
Balance, end of period	717	352	235
Consumer | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	249
Balance, end of period		249
Other
Allowance for loan losses
Balance, beginning of period	399	112	171
Provision for (benefit from) credit losses	(46)	287	(59)
Loans charged-off	0	0	0
Recoveries	0	0	0
Balance, end of period	930	399	$ 112
Other | Impact of adopting ASC 326
Allowance for loan losses
Balance, beginning of period	$ 577
Balance, end of period		$ 577