Loans, Loan Ratings by Loan Class, Commercial (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Summary of Loan Ratings by Loan Class [Abstract]
Loans	$ 2,875,193	$ 2,733,370
Accrued interest included in total	8,530	8,347
Commercial [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	1,365,968	1,169,693
Accrued interest included in total	3,012	2,998
Commercial [Member] | Non-Watch 1-6 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	1,302,432	1,096,471
Accrued interest included in total	2,846	2,763
Commercial [Member] | Watch 7-8 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	44,201	67,420
Accrued interest included in total	109	205
Commercial [Member] | Substandard Accrual 9 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	14,501	4,502
Accrued interest included in total	57	30
Commercial [Member] | Non-Accrual 10-11 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	4,834	1,300
Accrued interest included in total	0	0
Commercial [Member] | Commercial and Industrial [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	763,705	564,871
Commercial [Member] | Commercial and Industrial [Member] | Non-Watch 1-6 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	719,372	515,955
Commercial [Member] | Commercial and Industrial [Member] | Watch 7-8 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	39,374	44,384
Commercial [Member] | Commercial and Industrial [Member] | Substandard Accrual 9 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	3,708	3,967
Commercial [Member] | Commercial and Industrial [Member] | Non-Accrual 10-11 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	1,251	565
Commercial [Member] | Commercial Real Estate [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	602,263	604,822
Commercial [Member] | Commercial Real Estate [Member] | Non-Watch 1-6 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	583,060	580,516
Commercial [Member] | Commercial Real Estate [Member] | Watch 7-8 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	4,827	23,036
Commercial [Member] | Commercial Real Estate [Member] | Substandard Accrual 9 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	10,793	535
Commercial [Member] | Commercial Real Estate [Member] | Non-Accrual 10-11 [Member]
Summary of Loan Ratings by Loan Class [Abstract]
Loans	$ 3,583	$ 735