Loans - Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	$ 5,296,168	$ 5,491,240
Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	5,097,203	5,248,591
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	129,430	152,272
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	69,535	90,377
Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	69,535	90,377
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,157,594	1,191,081
Residential Real Estate [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,146,212	1,187,923
Residential Real Estate [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,316	795
Residential Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	10,066	2,363
Residential Real Estate [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	10,066	2,363
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,447,663	2,360,155
Commercial Real Estate [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,324,846	2,203,652
Commercial Real Estate [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	93,676	111,039
Commercial Real Estate [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	29,141	45,464
Commercial Real Estate [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	29,141	45,464
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	384,925	312,584
Construction Loans [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	365,403	299,866
Construction Loans [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	19,522	12,718
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	884,969	1,173,043
Commercial [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	856,402	1,142,289
Commercial [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	14,815	23,907
Commercial [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	13,752	6,847
Commercial [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	13,752	6,847
Home Equity and Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	260,948	267,789
Home Equity and Improvement [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	258,914	267,350
Home Equity and Improvement [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,034	439
Home Equity and Improvement [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	2,034	439
PCD [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	32,337	65,801
PCD [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	19,547	26,829
PCD [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	101	3,813
PCD [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	12,689	35,159
PCD [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	12,689	35,159
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	127,732	120,787
Consumer Finance [Member] | Unclassified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	125,879	120,682
Consumer Finance [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	1,853	105
Consumer Finance [Member] | Total Classified [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Net	$ 1,853	$ 105