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Special Charges, Net (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2017 USD ($) employee | Dec. 31, 2016 USD ($) employee | Dec. 31, 2015 USD ($) employee
Special charges, net |  |  |  |
Period for selling an asset |  | 1 year |  |
Period for settling liabilities |  | 1 year |  |
Restructuring charges |  |  |  |
Employee Termination Costs |  | $ 2.5 | $ 1.7 | $ 4.5
Facility Consolidation Costs |  | 0.0 | 0.0 | 0.2
Other Cash Costs, Net |  | 0.2 | 0.0 | 0.1
Non-Cash Asset Write-downs |  | 0.0 | 3.6 | 0.3
Total Special Charges |  | 2.7 | 5.3 | 5.1
Asset impairment charges |  | 0.0 | 30.1 | 0.0
Restructuring liabilities |  |  |  |
Balance at beginning of year |  | 0.9 | 1.6 | 1.7
Special charges | [1] | 2.7 | 1.7 | 4.8
Utilization — cash |  | (3.0) | (2.1) | (5.1)
Currency translation adjustment and other |  | 0.0 | (0.3) | 0.2
Balance at the end of year |  | 0.6 | 0.9 | 1.6
Asset impairment charges |  | 0.0 | $ 3.6 | 0.3
Corporate |  |  |  |
Restructuring charges |  |  |  |
Employee Termination Costs |  | 0.1 |  | 1.1
Total Special Charges |  | $ 0.1 |  | $ 1.1
Number of employees expected to be terminated | employee |  | 4 |  |
HVAC segment |  |  |  |
Restructuring charges |  |  |  |
Number of employees terminated | employee |  | 12 |  | 44
HVAC segment | Reportable and other operating segments |  |  |  |
Restructuring charges |  |  |  |
Employee Termination Costs |  | $ 0.4 |  | $ 0.9
Facility Consolidation Costs |  |  |  | 0.1
Other Cash Costs, Net |  |  |  | (0.2)
Non-Cash Asset Write-downs |  |  |  | 0.3
Total Special Charges |  | $ 0.4 |  | $ 1.1
Detection and Measurement segment |  |  |  |
Restructuring charges |  |  |  |
Number of employees terminated | employee |  | 8 | 19 | 21
Detection and Measurement segment | Reportable and other operating segments |  |  |  |
Restructuring charges |  |  |  |
Employee Termination Costs |  | $ 0.3 | $ 0.5 | $ 0.9
Non-Cash Asset Write-downs |  |  | 0.3 |
Total Special Charges |  | $ 0.3 | $ 0.8 | $ 0.9
Engineered Solutions segment |  |  |  |
Restructuring charges |  |  |  |
Number of employees terminated | employee |  |  |  | 134
Number of employees expected to be terminated | employee |  | 111 | 97 |
Engineered Solutions segment | Reportable and other operating segments |  |  |  |
Restructuring charges |  |  |  |
Employee Termination Costs |  | $ 1.7 | $ 1.2 | $ 1.6
Facility Consolidation Costs |  |  |  | 0.1
Other Cash Costs, Net |  | 0.2 |  | 0.3
Non-Cash Asset Write-downs |  |  | 3.3 |
Total Special Charges |  | $ 1.9 | 4.5 | $ 2.0
Engineered Solutions segment | SPX Heat Transfer Business |  |  |  |
Restructuring charges |  |  |  |
Asset impairment charges |  |  | $ 3.3 |
[1] | The years ended December 31, 2017, 2016 and 2015 excluded $0.0, $3.6 and $0.3, respectively, of non-cash charges that impacted special charges but not the restructuring liabilities.

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