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INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Income Tax Contingency [Line Items] |  |  |  |
Liability for uncertain tax positions | $ 27.6 | $ 27.6 |  | $ 42.2
Liability for uncertain tax positions - current | 1.7 | 1.7 |  | 1.9
Expected Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations and Settlement | 1.7 | 1.7 |  |
Reduction relating to interest and penalties uncertain tax positions | (9.8) | (11.1) |  |
Interest and penalties uncertain tax positions recognized |  | 0.6 | $ 1.4 |
Accrued interest and penalties uncertain tax positions | 2.0 | 2.0 |  | $ 4.0
Power Solutions [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Reduction relating to settlement with taxing authorities | (11.2) | (13.9) |  |
Reduction relating to interest and penalties uncertain tax positions |  | (2.6) |  |
Interest and penalties uncertain tax positions recognized |  | 3.9 |  |
Annual accrual for liability for uncertain tax positions | $ 0.6 | $ 0.6 |  |

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