EMPLOYEE BENEFIT PLANS - Additional Information (Details) - USD ($) |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2015 |
|
| Compensation and Retirement Disclosure [Abstract] | |||||
| Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year | $ 0 | ||||
| Pension Contributions | 0 | $ 0 | |||
| Pension Expense | $ (225,000) | $ (300,000) | $ (675,000) | $ (900,000) | |