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v3.21.2

Segment Information - Summary of Net Sales, Operating Income (Loss), and Total Assets by Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | $ 334.7 | $ 270.1 | $ 613.5 | $ 556.2 |
Total operating income | 38.5 | 31.3 | 66.3 | 63.6 |
Interest expense | 1.1 | 1.8 | 2.2 | 3.3 |
Other (income) expense, net | (0.3) | 2.0 | (0.8) | 2.2 |
Income before income taxes | 37.7 | 27.5 | 64.9 | 58.1 |
Total assets | 1,289.4 |  | 1,289.4 |  | $ 1,208.8
Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total assets | 1,289.2 |  | 1,289.2 |  | 1,208.6
Discontinued Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total assets | 0.2 |  | 0.2 |  | 0.2
Environmental Solutions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 281.3 | 214.2 | 509.4 | 447.2 |
Total operating income | 38.5 | 28.6 | 65.6 | 58.0 |
Environmental Solutions | Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total assets | 1,021.2 |  | 1,021.2 |  | 926.8
Safety and Security Systems |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 53.4 | 55.9 | 104.1 | 109.0 |
Total operating income | 7.8 | 10.4 | 15.0 | 17.8 |
Safety and Security Systems | Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total assets | 221.2 |  | 221.2 |  | 225.5
Corporate And Eliminations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total operating income | (7.8) | $ (7.7) | (14.3) | $ (12.2) |
Corporate And Eliminations | Continuing Operations |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total assets | $ 46.8 |  | $ 46.8 |  | $ 56.3

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