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ACQUISITIONS Selected Pro Forma Results (Details 2) - Island Bancorp, Inc. [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Business Acquisition [Line Items] |  |  |  |
Net interest income after provision for loan losses | $ 63,370 | $ 57,352 | $ 124,412 | $ 113,102
Net income | $ 22,698 | $ 20,629 | $ 44,109 | $ 39,488

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- Definition Business Acquisition, Pro Forma Interest Income (Expense), after Provision for Loan Loss + References No definition available. + Details
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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