Consolidated Balance Sheets (Unaudited) - Fair Value, Option, Eligible Item or Group [Domain] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 100,054	$ 143,342
Interest-earning deposits with banks	295,722	34,912
Securities
Trading Securities	489	0
Securities - available for sale	375,001	348,554
Securities - held to maturity (fair value $431,778 and $379,699)	428,339	375,453
Total securities	803,829	724,007
Disposal Group, Including Discontinued Operation, Mortgage Loans	10,728	6,888
Loans
Loans Receivable, Gross, Commercial and Industrial	873,105	860,839
Loans Receivable, Gross, Commercial, Mortgage	2,630,062	2,347,323
Loans Receivable, Gross, Commercial, Construction	278,692	265,994
Small Business	91,367	85,247
Loans and Leases Receivable, Gross, Consumer, Mortgage	653,370	530,259
Loans and Leases Receivable Consumer Home Equity in First Position	526,370	513,518
Loans and Leases Receivable Consumer Home Equity in Second Position	364,523	350,345
Loans and Leases Receivable, Gross, Consumer, Other	17,293	17,208
Loans and Leases Receivable, Gross	5,434,782	4,970,733
Less: allowance for loan losses	(54,995)	(55,100)
Net loans	5,379,787	4,915,633
Federal Home Loan Bank stock	37,485	33,233
Bank premises and equipment, net	74,143	64,074
Goodwill	201,083	170,421
Identifiable intangible assets	13,248	9,885
Cash surrender value of life insurance policies	132,600	109,854
Other real estate owned and other foreclosed assets	5,124	7,743
Other assets	142,118	144,920
Total assets	7,195,921	6,364,912
Deposits
Demand deposits	1,832,971	1,462,200
Savings and interest checking accounts	2,285,968	2,108,486
Money market	1,125,888	990,160
Time certificates of deposit of $100,000 and over	295,738	254,718
Other time certificates of deposits	429,965	394,902
Total deposits	5,970,530	5,210,466
Borrowings
Federal Home Loan Bank borrowings(c)	108,190	70,080
Customer Repurchase Agreements and other short-term borrowings	119,439	147,890
Wholesale repurchase agreements	50,000	50,000
Junior subordinated debentures	73,576	73,685
Subordinated debentures	35,000	65,000
Total borrowings	386,205	406,655
Other liabilities	95,869	107,264
Total liabilities	$ 6,452,604	$ 5,724,385
Commitments and contingencies
Stockholders' equity
Preferred stock, $.01 par value. authorized: 1,000,000 shares, outstanding: none	$ 0	$ 0
Common Stock, $.01 par value. Authorized: 75,000,000; Issued and Outstanding : 26,158,826 shares at June 30, 2015 and 23,998,738 Shares at December 31, 2014 (includes 243,710 and 254,500 shares of unvested participating restricted stock awards, respectively)	259	237
Shares held in rabbi trust at cost: 171,286 shares at June 30, 2015 and 176,849 shares at December 31, 2014	(3,785)	(3,666)
Deferred Compensation Equity	3,785	3,666
Additional paid in capital	401,437	311,978
Retained earnings	343,757	330,444
Accumulated other comprehensive loss, net of tax	(2,136)	(2,132)
Total stockholders’ equity	743,317	640,527
Total liabilities and stockholders' equity	$ 7,195,921	$ 6,364,912