CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015		Jun. 30, 2016	Jun. 30, 2015
Interest income:
Loans and leases	$ 43,891	$ 42,583		$ 86,627	$ 82,187
Investment securities, taxable	3,040	2,648		6,120	5,652
Investment securities, tax-exempt	697	754		1,389	1,523
Other	309	229		600	484
Total interest income	47,937	46,214		94,736	89,846
Interest expense:
Deposits	3,790	2,838		7,561	5,397
Short-term borrowings	119	131		280	234
Subordinated notes	1,055	1,055		2,110	2,110
Long-term debt and mandatorily redeemable securities	680	525		1,203	1,004
Total interest expense	5,644	4,549		11,154	8,745
Net interest income	42,293	41,665		83,582	81,101
Provision for loan and lease losses	2,049	811		3,024	1,168
Net interest income after provision for loan and lease losses	40,244	40,854		80,558	79,933
Noninterest income:
Trust fees	5,108	5,247		9,731	9,804
Service charges on deposit accounts	2,276	2,367		4,383	4,564
Debit card	2,816	2,628		5,415	5,027
Mortgage banking	1,115	1,239		2,161	2,490
Insurance commissions	1,233	1,382		2,796	2,687
Equipment rental	6,517	5,342		12,590	10,421
(Losses) gains on investment securities available-for-sale	(209)	4		(199)	4
Other	3,441	3,322		7,047	6,285
Total noninterest income	22,297	21,531		43,924	41,282
Noninterest expense:
Salaries and employee benefits	21,194	20,794		42,545	41,719
Net occupancy	2,307	2,345		4,808	4,806
Furniture and equipment	4,811	4,531		9,601	8,867
Depreciation - leased equipment	5,444	4,396		10,545	8,484
Professional fees	1,190	1,108		2,409	1,978
Supplies and communication	1,374	1,409		2,882	2,815
FDIC and other insurance	911	847		1,790	1,696
Business development and marketing	1,025	1,214		2,005	2,263
Loan and lease collection and repossession	385	(294)		812	69
Other	1,393	1,891		3,342	3,605
Total noninterest expense	40,034	38,241		80,739	76,302
Income before income taxes	22,507	24,144		43,743	44,913
Income tax expense	8,028	8,514		15,446	15,772
Net income	$ 14,479	$ 15,630		$ 28,297	$ 29,141
Per common share:
Basic net income per common share (in dollars per share)	$ 0.56	$ 0.59	[1]	$ 1.08	$ 1.10	[1]
Diluted net income per common share (in dollars per share)	0.56	0.59	[1]	1.08	1.10	[1]
Cash dividends (in dollars per share)	$ 0.180	$ 0.164	[1]	$ 0.360	$ 0.327	[1]
Basic weighted average common shares outstanding (in shares)	25,853,537	26,212,999	[1]	25,888,534	26,235,511	[1]
Diluted weighted average common shares outstanding (in shares)	25,853,537	26,212,999	[1]	25,888,534	26,235,511	[1]

[1] *The computation of the three and six months ended June 30, 2015 per common share data and shares outstanding gives retrospective recognition to a 10% stock dividend declared on July 22, 2015 and issued on August 14, 2015.