REVENUES FROM CONTRACTS - Disaggregated Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 465.2	$ 399.8
Revenues recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues	420.4	356.5
Revenues recognized over time
Disaggregation of Revenue [Line Items]
Revenues	44.8	43.3
Package and process cooling equipment and services, and engineered air movement solutions
Disaggregation of Revenue [Line Items]
Revenues	187.8	158.3
Boilers, electrical heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues	114.6	93.3
Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues	61.0	65.9
Communication technologies, aids to navigation, and transportation systems
Disaggregation of Revenue [Line Items]
Revenues	101.8	82.3
HVAC
Disaggregation of Revenue [Line Items]
Revenues	302.4	251.6
HVAC | Revenues recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues	282.4	228.3
HVAC | Revenues recognized over time
Disaggregation of Revenue [Line Items]
Revenues	20.0	23.3
HVAC | Package and process cooling equipment and services, and engineered air movement solutions
Disaggregation of Revenue [Line Items]
Revenues	187.8	158.3
HVAC | Boilers, electrical heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues	114.6	93.3
HVAC | Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues	0.0	0.0
HVAC | Communication technologies, aids to navigation, and transportation systems
Disaggregation of Revenue [Line Items]
Revenues	0.0	0.0
Detection and Measurement
Disaggregation of Revenue [Line Items]
Revenues	162.8	148.2
Detection and Measurement | Revenues recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenues	138.0	128.2
Detection and Measurement | Revenues recognized over time
Disaggregation of Revenue [Line Items]
Revenues	24.8	20.0
Detection and Measurement | Package and process cooling equipment and services, and engineered air movement solutions
Disaggregation of Revenue [Line Items]
Revenues	0.0	0.0
Detection and Measurement | Boilers, electrical heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues	0.0	0.0
Detection and Measurement | Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues	61.0	65.9
Detection and Measurement | Communication technologies, aids to navigation, and transportation systems
Disaggregation of Revenue [Line Items]
Revenues	$ 101.8	$ 82.3