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COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |
Contract amount of commitments and contingencies |  | $ 830,495 | $ 757,743
Unused lines of credit |  | 25,000 |
Federal Home Loan Bank unused borrowing capacity |  | 1,000,000 |
Federal Reserve Bank unused borrowing capacity |  | 10,500 |
Federal Reserve required average total reserve |  | 63,200 |
Federal Reserve Bank of New York reserve requirement represented by cash on hand |  | 62,600 |
Required deposit with Federal Reserve Bank of New York |  | 600 |
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, lower range |  | 0 |
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability, upper range |  | 1,000 |
Litigation settlement charge | $ 2,800 |  |
Commitments to Extend Credit [Member] |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |
Contract amount of commitments and contingencies |  | 811,442 | 733,827
Standby Letters of Credit [Member] |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |
Contract amount of commitments and contingencies |  | $ 19,053 | $ 23,916

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