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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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