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SPECIAL CHARGES (GAINS) Narrative (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2018 USD ($) | Sep. 30, 2017 USD ($) employee | Jun. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Dec. 31, 2017 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Special charges (Note 4) |  |  |  | $ 0.0 | $ 9.7 | $ 0.0 | $ 9.7 |
Accrued realignment reserves |  |  |  | 0.3 |  | 0.3 |  | $ 8.2
Other than temporary impairment |  |  | $ 31.2 |  |  |  |  |
Facility Closing |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Special charges (Note 4) |  | $ 10.2 |  |  |  |  |  |
Number of employees impacted | employee |  | 232 |  |  |  |  |  |
Accrued realignment reserves |  |  |  | $ 0.8 |  | $ 0.8 |  |
Pension Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Gain due to settlement | $ 7.1 |  |  |  |  |  |  |

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