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REVENUES FROM CONTRACTS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 27, 2026 | Jun. 28, 2025 | Jun. 27, 2026 | Jun. 28, 2025 | Dec. 31, 2025 | Dec. 31, 2024
Revenue from Contract with Customer [Abstract] |  |  |  |  |  |
Contract with customer, revenue recognized | $ 13.5 | $ 10.3 | $ 50.6 | $ 39.0 |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Contract accounts receivable | 426.2 | $ 355.5 | 426.2 | $ 355.5 | $ 346.9 | $ 305.4
Thermolec Ltd |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Contract accounts receivable | 3.9 |  | 3.9 |  |  |
Crawford United Corporation |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Contract accounts receivable | 13.9 |  | 13.9 |  |  |
Contract assets | 5.8 |  | 5.8 |  |  |
Contract liabilities | $ 4.8 |  | $ 4.8 |  |  |

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