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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Jun. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | --- | --- | --- | --- | ---
Credit Extensions |  |  |  |  |  |
Loan commitments | $ 4,688,223 |  | $ 3,370,271 |  |  |
Commercial letters of credit and SBLCs | 1,527,366 |  | 1,293,547 |  |  |
Allowance for unfunded credit reserves | 255,812 |  | 264,959 |  |  |
Unfunded Lending Commitments |  |  |  |  |  |
Credit Extensions |  |  |  |  |  |
Allowance for unfunded credit reserves | 18,329 | $ 20,318 | 20,360 | $ 19,043 | $ 19,741 | $ 12,712
Unfunded Lending Commitments | Accrued Expenses and Other Liabilities |  |  |  |  |  |
Credit Extensions |  |  |  |  |  |
Allowance for unfunded credit reserves | 17,900 |  | $ 19,800 |  |  |
Commercial Letters Of Credit |  |  |  |  |  |
Credit Extensions |  |  |  |  |  |
Commercial letters of credit and SBLCs | 45,100 |  |  |  |  |
Standby Letters of Credit |  |  |  |  |  |
Credit Extensions |  |  |  |  |  |
Commercial letters of credit and SBLCs | $ 1,480,000 |  |  |  |  |

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