Revenues from Contracts - Disaggregated Revenues (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Oct. 02, 2021	Jul. 03, 2021	Apr. 03, 2021	Dec. 31, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 350.0	$ 285.7	$ 296.6	$ 287.2	$ 348.3	$ 267.8	$ 257.3	$ 254.7	$ 1,219.5	$ 1,128.1	$ 1,123.6
Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									1,077.1	964.1	988.5
Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									142.4	164.0	135.1
Package and process cooling equipment and services, and engineered air quality solutions
Disaggregation of Revenue [Line Items]
Revenues									433.8	447.1	429.7
Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									318.3	293.7	309.0
Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues									256.8	217.8	194.3
Communication technologies, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									210.6	169.5	190.6
HVAC
Disaggregation of Revenue [Line Items]
Revenues									752.1	740.8	738.7
HVAC | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									661.2	622.2	631.4
HVAC | Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									90.9	118.6	107.3
HVAC | Package and process cooling equipment and services, and engineered air quality solutions
Disaggregation of Revenue [Line Items]
Revenues									433.8	447.1	429.7
HVAC | Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									318.3	293.7	309.0
HVAC | Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues									0.0	0.0	0.0
HVAC | Communication technologies, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									0.0	0.0	0.0
Detection and Measurement
Disaggregation of Revenue [Line Items]
Revenues									467.4	387.3	384.9
Detection and Measurement | Transferred at Point in Time
Disaggregation of Revenue [Line Items]
Revenues									415.9	341.9	357.1
Detection and Measurement | Transferred over Time
Disaggregation of Revenue [Line Items]
Revenues									51.5	45.4	27.8
Detection and Measurement | Package and process cooling equipment and services, and engineered air quality solutions
Disaggregation of Revenue [Line Items]
Revenues									0.0	0.0	0.0
Detection and Measurement | Boilers, comfort heating, and ventilation
Disaggregation of Revenue [Line Items]
Revenues									0.0	0.0	0.0
Detection and Measurement | Underground locators, inspection and rehabilitation equipment, and robotic systems
Disaggregation of Revenue [Line Items]
Revenues									256.8	217.8	194.3
Detection and Measurement | Communication technologies, obstruction lighting, and bus fare collection systems
Disaggregation of Revenue [Line Items]
Revenues									$ 210.6	$ 169.5	$ 190.6