Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest and fees on loans and leases:
Taxable	$ 45,561	$ 45,682
Exempt from federal income taxes	2,661	2,683
Total interest and fees on loans and leases	48,222	48,365
Interest and dividends on investment securities:
Taxable	2,705	2,713
Exempt from federal income taxes	240	431
Interest on deposits with other banks	325	269
Interest and dividends on other earning assets	527	586
Total interest income	52,019	52,364
Interest expense
Interest on deposits	7,406	8,203
Interest on short-term borrowings	106	638
Interest on long-term debt and subordinated notes	2,039	2,000
Total interest expense	9,551	10,841
Net interest income	42,468	41,523
Provision for credit losses	20,452	2,685
Provision for credit losses	21,049	2,685
Net interest income after provision for credit losses	21,419	38,838
Disaggregation of Revenue [Line Items]
Insurance commission and fee income	4,732	5,144
Bank owned life insurance income	734	952
Net gain on sales of investment securities	695	1
Net gain on mortgage banking activities	2,744	483
Other income	67	339
Total noninterest income	18,384	16,297
Noninterest expense
Salaries, benefits and commissions	23,836	21,546
Net occupancy	2,574	2,611
Equipment	995	990
Data processing	2,760	2,514
Professional fees	1,317	1,264
Marketing and advertising	402	540
Deposit insurance premiums	504	452
Intangible expenses	330	426
Other expense	6,853	5,214
Total noninterest expense	39,571	35,557
Income before income taxes	232	19,578
Income tax (benefit) expense	(606)	3,499
Net income	$ 838	$ 16,079
Net income per share:
Basic (in dollars per share)	$ 0.03	$ 0.55
Diluted (in dollars per share)	$ 0.03	$ 0.55
Trust fee income
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,890	$ 1,887
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Noninterest income	1,397	1,435
Investment advisory commission and fee income
Disaggregation of Revenue [Line Items]
Noninterest income	4,255	3,789
Other service fee income
Disaggregation of Revenue [Line Items]
Noninterest income	$ 1,870	$ 2,267