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DISPOSITION OF BUSINESS (Narrative) (Details) - Transformer Services $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 USD ($) | Jun. 30, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Proceeds, net of transactional related costs |  | $ 44.4
Transactional related costs |  | 2.1
Pre-tax gain |  | 31.7
Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Final sale proceeds | $ 46.5 | $ 46.5
Proceeds, net of transactional related costs | 44.4 |
Transactional related costs | 2.1 |
Pre-tax gain | $ 31.7 |

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