Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 49,792	$ 42,230
Interest-bearing deposits in other banks	116,610	19,224
Total cash and cash equivalents	166,402	61,454
Available-for-sale investment securities, at fair value (amortized cost of $748,622 at March 31, 2015 and $632,967 at December 31, 2014)	760,822	636,880
Held-to-maturity investment securities, at amortized cost (fair value of $48,774 at March 31, 2015 and $48,442 at December 31, 2014)	48,045	48,468
Other investment securities, at cost	36,251	28,311
Total investment securities	845,118	713,659
Loans, net of deferred fees and costs	1,996,296	1,620,898
Allowance for loan losses	(18,088)	(17,881)
Net loans	1,978,208	1,603,017
Loans held for sale	5,039	4,374
Bank premises and equipment, net	50,686	40,335
Goodwill	124,660	98,562
Other intangible assets	18,777	10,596
Other assets	58,141	35,772
Total assets	3,247,031	2,567,769
Liabilities
Non-interest-bearing deposits	695,131	493,162
Interest-bearing deposits	1,886,005	1,439,912
Total deposits	2,581,136	1,933,074
Short-term borrowings	91,101	88,277
Long-term borrowings	130,074	179,083
Accrued expenses and other liabilities	25,502	27,217
Total liabilities	2,827,813	2,227,651
Stockholders’ Equity
Preferred stock, no par value, 50,000 shares authorized, no shares issued at March 31, 2015 and December 31, 2014	0	0
Common stock, no par value, 24,000,000 shares authorized, 18,918,525 shares issued at March 31, 2015 and 15,599,643 shares issued at December 31, 2014, including shares in treasury	342,484	265,742
Retained earnings	87,430	90,391
Accumulated other comprehensive income (loss), net of deferred income taxes	4,262	(1,301)
Treasury stock, at cost, 599,738 shares at March 31, 2015 and 590,246 shares at December 31, 2014	(14,958)	(14,714)
Total stockholders’ equity	419,218	340,118
Total liabilities and stockholders’ equity	$ 3,247,031	$ 2,567,769