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Segment Information - Summary of Continuing Operations by Segment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]      
Net sales $ 1,861.5 $ 1,722.7 $ 1,434.8
Cost of sales 1,328.5 1,272.5 1,089.9
Gross Profit 533.0 450.2 344.9
Selling, engineering, general and administrative expenses 234.0 210.1 171.7
Operating income 281.4 224.5 160.8
Interest expense, net 12.5 19.7 10.3
Other Expenses 5.0 1.8  
Other Income     (0.4)
Income before income taxes 263.9 203.0 150.9
Operating Segments      
Segment Reporting Information [Line Items]      
Gross Profit 533.0 450.2 344.9
Selling, engineering, general and administrative expenses 191.0 169.7 146.6
Other segment items 16.4 16.5 13.0
Operating income 325.6 264.0 185.3
Environmental Solutions      
Segment Reporting Information [Line Items]      
Net sales 1,557.1 1,437.9 1,190.6
Cost of sales 1,152.0 1,098.6 936.3
Gross Profit 405.1 339.3 254.3
Selling, engineering, general and administrative expenses 127.5 113.6 96.8
Other segment items 16.4 16.5 13.0
Operating income 261.2 209.2 144.5
Safety And Security Systems      
Segment Reporting Information [Line Items]      
Net sales 304.4 284.8 244.2
Cost of sales 176.5 173.9 153.6
Gross Profit 127.9 110.9 90.6
Selling, engineering, general and administrative expenses 63.5 56.1 49.8
Other segment items 0.0 0.0 0.0
Operating income 64.4 54.8 40.8
Corporate      
Segment Reporting Information [Line Items]      
Operating income $ 44.2 $ 39.5 $ 24.5