CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest and dividend income:
Loans/leases, including fees	$ 44,768	$ 50,406	$ 130,542	$ 143,488
Securities:
Taxable	1,938	1,682	5,714	5,026
Nontaxable	3,842	3,443	10,865	10,461
Interest-bearing deposits at financial institutions	92	951	587	3,042
Restricted investment securities	249	293	795	891
Federal funds sold	1	42	19	191
Total interest and dividend income	50,890	56,817	148,522	163,099
Interest expense:
Deposits	4,484	13,394	19,457	39,697
Short-term borrowings	11	97	81	275
Federal Home Loan Bank advances	211	1,023	1,007	2,685
Other borrowings				512
Subordinated notes	1,031	1,003	3,019	2,561
Junior subordinated debentures	572	581	1,715	1,729
Total interest expense	6,309	16,098	25,279	47,459
Net interest income	44,581	40,719	123,243	115,640
Provision for loan/lease losses	20,342	2,012	48,624	6,087
Net interest income after provision for loan/lease losses	24,239	38,707	74,619	109,553
Noninterest income:
Revenue	88,849	76,723	230,303	212,063
Gains on sales of residential real estate loans, net	1,370	890	3,218	1,748
Gains on sales of government guaranteed portions of loans, net		519		589
Swap fee income	26,688	9,797	53,419	20,886
Securities gains (losses), net	1,802	(3)	1,867	(56)
Earnings on bank-owned life insurance	502	489	1,443	1,441
Other	1,482	1,204	3,345	3,562
Total noninterest income	37,959	19,906	81,781	48,964
Noninterest expense:
Salaries and employee benefits	25,999	24,215	65,822	67,843
Occupancy and equipment expense	3,807	3,860	11,587	11,087
Professional and data processing fees	3,758	4,030	10,773	9,811
Post-acquisition compensation, transition and integration costs		884	189	1,727
Disposition costs	192		626
FDIC insurance, other insurance and regulatory fees	1,301	542	2,892	2,432
Loan/lease expense	403	221	970	748
Net cost of (income from) and gains/losses on operations of other real estate	16	2,078	(303)	3,557
Advertising and marketing	750	1,056	1,984	2,878
Bank service charges	488	502	1,493	1,494
Losses on liability extinguishment	1,874	148	2,450	148
Correspondent banking expense	205	209	633	619
Intangibles amortization	531	560	1,628	1,706
Goodwill impairment			500
Loss on sale of subsidiary	305		305
Other	1,209	1,640	3,842	4,891
Total noninterest expenses	40,838	39,945	105,391	108,941
Net income before income taxes	21,360	18,668	51,009	49,576
Federal and state income tax expense	4,016	3,573	8,698	8,059
Net income	$ 17,344	$ 15,095	$ 42,311	$ 41,517
Basic earnings per common share (in dollars per share)	$ 1.10	$ 0.96	$ 2.68	$ 2.64
Diluted earnings per common share (in dollars per share)	$ 1.09	$ 0.94	$ 2.65	$ 2.60
Weighted average common shares outstanding (in shares)	15,767,152	15,739,430	15,770,335	15,715,788
Weighted average common and common equivalent shares outstanding (in shares)	15,923,578	15,976,742	15,945,832	15,946,020
Cash dividends declared per common share (in dollars per share)	$ 0.06	$ 0.06	$ 0.18	$ 0.18
Trust department fees
Noninterest income:
Revenue	$ 2,280	$ 2,340	$ 6,819	$ 7,194
Investment advisory and management fees
Noninterest income:
Revenue	1,266	1,782	4,392	5,406
Deposit service fees
Noninterest income:
Revenue	1,403	1,813	4,166	5,025
Debit card fees
Noninterest income:
Revenue	946	886	2,479	2,591
Correspondent banking fees
Noninterest income:
Revenue	$ 220	$ 189	$ 633	$ 578