CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Assets:
Cash and due from banks		$ 128,580	$ 106,185
Short-term investments		2,600	1,612
Mortgage loans held for sale, at fair value		28,484	29,434
Securities:
Available for sale, at fair value		714,355	739,912
Held to maturity, at amortized cost		13,241	15,633
Total securities		727,596	755,545
Federal Home Loan Bank stock, at cost		42,173	43,129
Loans:
Total loans	[1]	3,323,078	3,234,371
Less allowance for loan losses		27,308	26,004
Net loans		3,295,770	3,208,367
Premises and equipment, net		28,591	29,020
Investment in bank-owned life insurance		72,729	71,105
Goodwill		63,909	64,059
Identifiable intangible assets, net		9,388	10,175
Other assets		69,410	62,484
Total assets		4,469,230	4,381,115
Liabilities:
Demand deposits		621,273	585,960
NOW accounts		448,128	427,707
Money market accounts		716,827	730,075
Savings accounts		367,912	358,397
Time deposits		1,002,941	961,613
Total deposits		3,157,081	3,063,752
Federal Home Loan Bank advances		814,045	848,930
Junior subordinated debentures		22,681	22,681
Other liabilities		61,195	54,948
Total liabilities		4,055,002	3,990,311
Commitments and contingencies
Shareholders' Equity:
Common stock		1,076	1,073
Paid-in capital		117,189	115,123
Retained earnings		312,334	294,365
Accumulated other comprehensive loss		(16,371)	(19,757)
Total shareholders' equity		414,228	390,804
Total liabilities and shareholders’ equity		4,469,230	4,381,115
Commercial [Member]
Loans:
Total loans		1,800,116	1,771,666
Residential Real Estate [Member]
Loans:
Total loans		1,195,537	1,122,748
Consumer [Member]
Loans:
Total loans		$ 327,425	$ 339,957

[1] Includes net unamortized loan origination costs of $3.9 million and $3.0 million, respectively, at September 30, 2017 and December 31, 2016 and net unamortized premiums on purchased loans of $781 thousand and $783 thousand, respectively, at September 30, 2017 and December 31, 2016.