Sales - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Sep. 25, 2020	Oct. 01, 2021	Sep. 25, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 768.5	$ 746.7	$ 2,200.5	$ 1,889.6
Products
Disaggregation of Revenue [Line Items]
Sales	699.7	686.0	2,005.1	1,713.9
Mobility technologies
Disaggregation of Revenue [Line Items]
Sales	588.6	578.6	1,641.6	1,441.6
Diagnostics and repair technologies
Disaggregation of Revenue [Line Items]
Sales	179.9	168.1	558.9	448.0
Services
Disaggregation of Revenue [Line Items]
Sales	68.8	60.7	195.4	175.7
Retail fueling hardware
Disaggregation of Revenue [Line Items]
Sales	243.6	225.5	648.9	562.4
Auto repair
Disaggregation of Revenue [Line Items]
Sales	156.1	145.5	485.2	382.9
Service and other recurring revenue
Disaggregation of Revenue [Line Items]
Sales	118.0	116.2	361.4	315.0
Environmental
Disaggregation of Revenue [Line Items]
Sales	73.3	61.7	198.4	162.6
Retail solutions
Disaggregation of Revenue [Line Items]
Sales	96.4	122.3	285.1	256.8
Software-as-a-service
Disaggregation of Revenue [Line Items]
Sales	45.7	45.1	139.2	134.5
Smart cities
Disaggregation of Revenue [Line Items]
Sales	9.6	8.9	26.7	23.4
E-mobility
Disaggregation of Revenue [Line Items]
Sales	4.7	5.7	8.1	12.2
Other
Disaggregation of Revenue [Line Items]
Sales	21.1	15.8	47.5	39.8
North America
Disaggregation of Revenue [Line Items]
Sales	547.0	539.9	1,568.2	1,348.3
Western Europe
Disaggregation of Revenue [Line Items]
Sales	68.7	63.7	191.3	176.6
High growth markets
Disaggregation of Revenue [Line Items]
Sales	115.8	111.7	337.1	279.5
Rest of world
Disaggregation of Revenue [Line Items]
Sales	37.0	31.4	103.9	85.2
United States
Disaggregation of Revenue [Line Items]
Sales	$ 526.7	$ 525.5	$ 1,513.3	$ 1,309.2