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BORROWINGS, Outstanding Borrowings (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Debt Instrument [Line Items] |  |
Total borrowings | $ 403,446 | $ 440,122
Subordinated debt held by unconsolidated subsidiary trust, discount | 381 | 405
Federal Home Loan Bank Overnight Advance [Member] |  |
Debt Instrument [Line Items] |  |
Total borrowings | 301,300 | 338,000
Subordinated Debt Held By Unconsolidated Subsidiary Trust [Member] |  |
Debt Instrument [Line Items] |  |
Total borrowings | $ 102,146 | $ 102,122

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