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DISPOSITIONS AND SPECIAL CHARGES - Special Charges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
North American Technology Products Segment and European Technology Products Segment |  |
Restructuring Reserve [Roll Forward] |  |
Balance beginning of period | $ 20.5 | $ 19.3
Charged to expense | 6.8 | 19.0
Paid or otherwise settled | (7.1) | (17.8)
Balance end of period | 20.2 | 20.5
ETG - Severance and other costs | ETG |  |
Restructuring Reserve [Roll Forward] |  |
Balance beginning of period | 0.0 | 0.3
Charged to expense | 0.3 | 0.0
Paid or otherwise settled | (0.3) | (0.3)
Balance end of period | 0.0 | 0.0
ETG – Lease liabilities and other costs | ETG |  |
Restructuring Reserve [Roll Forward] |  |
Balance beginning of period | 1.2 | 0.0
Charged to expense | 0.0 | 1.9
Paid or otherwise settled | 0.0 | (0.7)
Balance end of period | 1.2 | 1.2
NATG – Workforce reductions | NATG |  |
Restructuring Reserve [Roll Forward] |  |
Balance beginning of period | 0.0 | 2.7
Charged to expense | 0.0 | 0.2
Paid or otherwise settled | 0.0 | (2.9)
Balance end of period | 0.0 | 0.0
NATG – Lease liabilities and other exit costs | NATG |  |
Restructuring Reserve [Roll Forward] |  |
Balance beginning of period | 19.3 | 16.3
Charged to expense | 6.5 | 16.9
Paid or otherwise settled | (6.8) | (13.9)
Balance end of period | $ 19.0 | $ 19.3

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