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v3.19.1

Segment Information - Summary of Net Sales, Operating Income (Loss), and Total Assets by Segment (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Total net sales | $ 273.8 | $ 249.7 |
Total operating income | 25.8 | 19.6 |
Interest expense | 2.0 | 2.5 |
Other expense, net | 0.4 | 0.1 |
Income before income taxes | 23.4 | 17.0 |
Total assets | 1,070.2 |  | $ 1,023.8
Continuing Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 1,069.8 |  | 1,023.4
Discontinued Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 0.4 |  | 0.4
Environmental Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Total net sales | 219.5 | 196.6 |
Total operating income | 25.7 | 20.6 |
Environmental Solutions | Continuing Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 825.7 |  | 775.2
Safety and Security Systems |  |  |
Segment Reporting Information [Line Items] |  |  |
Total net sales | 54.3 | 53.1 |
Total operating income | 8.7 | 6.1 |
Safety and Security Systems | Continuing Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | 216.9 |  | 211.5
Corporate And Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total operating income | (8.6) | $ (7.1) |
Corporate And Eliminations | Continuing Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Total assets | $ 27.2 |  | $ 36.7

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