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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions | Oct. 02, 2021 | Dec. 31, 2020
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Finite-Lived Intangible Assets [Line Items] |  |
Estimated annual amortization expense, 2026 | $ 19.0 |
Aggregate carrying value of definite lived intangible assets | 164.0 | $ 141.1
Goodwill | 404.0 | 368.6
Sealite and ECS |  |
Finite-Lived Intangible Assets [Line Items] |  |
Estimated annual amortization expense, 2021 | 21.0 |
Estimated annual amortization expense, 2022 | 19.0 |
Estimated annual amortization expense, 2023 | 19.0 |
Estimated annual amortization expense, 2024 | 19.0 |
Estimated annual amortization expense, 2025 | 19.0 |
Estimated annual amortization expense, Thereafter | $ 19.0 |
Minimum |  |
Finite-Lived Intangible Assets [Line Items] |  |
Percentage of fair value in excess of carrying amount | 75.00% |
Cues |  |
Finite-Lived Intangible Assets [Line Items] |  |
Percentage of fair value in excess of carrying amount | 12.00% |
Goodwill | $ 47.9 |
Patterson-Kelley, LLC |  |
Finite-Lived Intangible Assets [Line Items] |  |
Percentage of fair value in excess of carrying amount | 3.00% |
Goodwill | $ 14.2 |
ULC Robotics |  |
Finite-Lived Intangible Assets [Line Items] |  |
Goodwill | 17.1 |
HVAC reportable segment |  |
Finite-Lived Intangible Assets [Line Items] |  |
Aggregate carrying value of definite lived intangible assets | 22.4 |
Goodwill | 149.6 | 151.6
Detection and Measurement reportable segment |  |
Finite-Lived Intangible Assets [Line Items] |  |
Aggregate carrying value of definite lived intangible assets | 141.6 |
Goodwill | 254.4 | 217.0
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Trademarks | 173.2 | $ 163.9
Trademarks | HVAC reportable segment |  |
Finite-Lived Intangible Assets [Line Items] |  |
Trademarks | 105.5 |
Trademarks | Detection and Measurement reportable segment |  |
Finite-Lived Intangible Assets [Line Items] |  |
Trademarks | $ 67.7 |

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