Allowance for Credit Losses - Rollforward of the Reserve for Unfunded Commitments (Details) - Reserve for unfunded commitments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	$ 33,835	$ 30,322	$ 30,603
Provision	1,770	3,513	(281)
Reserve for unfunded commitments, ending balance	35,605	33,835	30,322
Commercial and Industrial
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	7,811	8,615	11,719
Provision	1,305	(804)	(3,104)
Reserve for unfunded commitments, ending balance	9,116	7,811	8,615
Commercial Real Estate
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	2,004	2,114	1,328
Provision	(217)	(110)	786
Reserve for unfunded commitments, ending balance	1,787	2,004	2,114
Construction
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	7,470	8,963	9,037
Provision	578	(1,493)	(74)
Reserve for unfunded commitments, ending balance	8,048	7,470	8,963
Residential Lending: Residential Mortgage
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	30	15	2
Provision	(6)	15	13
Reserve for unfunded commitments, ending balance	24	30	15
Residential Lending: Home Equity Line
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	16,483	10,546	8,452
Provision	106	5,937	2,094
Reserve for unfunded commitments, ending balance	16,589	16,483	10,546
Consumer
Reserve for unfunded commitments:
Reserve for unfunded commitments, beginning balance	37	69	65
Provision	4	(32)	4
Reserve for unfunded commitments, ending balance	$ 41	$ 37	$ 69