CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Interest income:
Loans and leases	$ 48,032	$ 43,891	$ 92,916	$ 86,627
Investment securities, taxable	3,370	3,040	6,884	6,120
Investment securities, tax-exempt	677	697	1,360	1,389
Other	319	309	610	600
Total interest income	52,398	47,937	101,770	94,736
Interest expense:
Deposits	4,511	3,790	8,245	7,561
Short-term borrowings	272	119	499	280
Subordinated notes	1,055	1,055	2,110	2,110
Long-term debt and mandatorily redeemable securities	699	680	1,328	1,203
Total interest expense	6,537	5,644	12,182	11,154
Net interest income	45,861	42,293	89,588	83,582
Provision for loan and lease losses	2,738	2,049	3,738	3,024
Net interest income after provision for loan and lease losses	43,123	40,244	85,850	80,558
Noninterest income:
Trust and wealth advisory	5,627	5,108	10,628	9,731
Service charges on deposit accounts	2,464	2,276	4,703	4,383
Debit card	2,986	2,816	5,736	5,415
Mortgage banking	1,304	1,115	2,251	2,161
Insurance commissions	1,310	1,233	3,077	2,796
Equipment rental	7,586	6,517	14,418	12,590
Gains (losses) on investment securities available-for-sale	465	(209)	1,750	(199)
Other	2,394	3,441	4,880	7,047
Total noninterest income	24,136	22,297	47,443	43,924
Noninterest expense:
Salaries and employee benefits	20,712	21,194	42,057	42,545
Net occupancy	2,368	2,307	4,962	4,808
Furniture and equipment	5,108	4,811	9,901	9,601
Depreciation - leased equipment	6,296	5,444	11,976	10,545
Professional fees	1,672	1,190	2,749	2,409
Supplies and communication	1,345	1,374	2,595	2,882
FDIC and other insurance	573	911	1,196	1,790
Business development and marketing	1,501	1,025	3,153	2,005
Loan and lease collection and repossession	329	385	965	812
Other	1,201	1,393	2,670	3,342
Total noninterest expense	41,105	40,034	82,224	80,739
Income before income taxes	26,154	22,507	51,069	43,743
Income tax expense	9,485	8,028	18,194	15,446
Net income	$ 16,669	$ 14,479	$ 32,875	$ 28,297
Per common share:
Basic net income per common share (in dollars per share)	$ 0.64	$ 0.56	$ 1.26	$ 1.08
Diluted net income per common share (in dollars per share)	0.64	0.56	1.26	1.08
Cash dividends (in dollars per share)	$ 0.19	$ 0.18	$ 0.37	$ 0.36
Basic weighted average common shares outstanding (in shares)	25,927,032	25,853,537	25,915,280	25,888,534
Diluted weighted average common shares outstanding (in shares)	25,927,032	25,853,537	25,915,280	25,888,534