EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| EMPLOYEE BENEFIT PLANS | |||
| Employer matching contribution as a percentage of first 8% of eligible employees' contributions | 80.00% | ||
| Percentage of eligible employees' contributions matched by employer | 8.00% | ||
| Expense | $ 2,535 | $ 2,895 | $ 2,751 |