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Restructuring (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Restructuring Reserve [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | $ 0.2 | $ 1.0 | $ 0.0 | $ 0.3 | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0
Charge to expense | 0.4 | 0.0 | 1.2 | 0.0 | 0.4 | 0.0 | 1.6 | 0.4
Cash payments | (0.2) | (0.8) | (0.2) | (0.2) | (0.1) | 0.0 |  |
Ending balance | 0.4 | $ 0.2 | $ 1.0 | 0.1 | $ 0.3 | $ 0.0 | 0.4 | 0.1
Operating Segments | Safety & Security Systems | Voluntary Reduction-In-Force Plan |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Severance costs |  |  |  | $ 0.4 |  |  | 1.6 | $ 0.4
Operating Segments | Safety & Security Systems | Cost Reduction Plan [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Severance costs | 0.4 |  |  |  |  |  |  |
Expected additional restructuring charges | $ 1.5 |  |  |  |  |  | $ 1.5 |

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