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Business Segments and Geographic Information - Schedule of Information by Business Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | $ 19.1 | $ 17.4 | $ 56.5 | $ 49.9 |
Amortization of intangible assets | 33.0 | 26.5 | 96.5 | 75.0 |
Total assets | 6,969.7 |  | 6,969.7 |  | $ 6,745.3
Operating segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | 18.9 | 17.1 | 55.9 | 49.1 |
Total assets | 6,850.3 |  | 6,850.3 |  | 6,546.1
Operating segments | HST |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | 11.9 | 10.6 | 35.5 | 29.5 |
Amortization of intangible assets | 26.2 | 19.7 | 76.2 | 54.6 |
Total assets | 4,349.6 |  | 4,349.6 |  | 4,142.6
Operating segments | FMT |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | 4.7 | 4.3 | 13.5 | 12.9 |
Amortization of intangible assets | 5.5 | 5.2 | 16.2 | 15.7 |
Total assets | 1,678.2 |  | 1,678.2 |  | 1,609.4
Operating segments | Fire & Safety/Diversified Products |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | 2.3 | 2.2 | 6.9 | 6.7 |
Amortization of intangible assets | 1.3 | 1.6 | 4.1 | 4.7 |
Total assets | 822.5 |  | 822.5 |  | 794.1
Corporate/other |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Depreciation | 0.2 | 0.3 | 0.6 | 0.8 |
Amortization of intangible assets | 33.0 | $ 26.5 | 96.5 | $ 75.0 |
Total assets | $ 119.4 |  | $ 119.4 |  | $ 199.2

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