COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions |
Dec. 31, 2015 |
Jan. 23, 2015 |
|---|---|---|
| Contingencies | ||
| Estimated life-cycle costs, minimum | $ 0.9 | |
| Estimated life-cycle costs, maximum | $ 5.0 | |
| Reserve for estimated life-cycle costs | $ 0.3 | |
| Minimum | ||
| Contingencies | ||
| Loss contingency, entity portion of potential cost | 0.1 | |
| Maximum | ||
| Contingencies | ||
| Loss contingency, entity portion of potential cost | $ 0.7 |