Segment Information - Segment Revenue by Geographic Areas (Details) - Operating Segments [Member] - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Segment Reporting Information [Line Items]
Segment Revenues	$ 794.0	$ 804.5
North America [Member]
Segment Reporting Information [Line Items]
Segment Revenues	414.4	422.4
Europe [Member]
Segment Reporting Information [Line Items]
Segment Revenues	241.8	248.6
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Segment Revenues	93.8	93.4
Rest of World [Member]
Segment Reporting Information [Line Items]
Segment Revenues	44.0	40.1
Buildings and Infrastructure [Member]
Segment Reporting Information [Line Items]
Segment Revenues	296.9	294.7
Buildings and Infrastructure [Member] | North America [Member]
Segment Reporting Information [Line Items]
Segment Revenues	172.1	165.6
Buildings and Infrastructure [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Segment Revenues	81.6	83.9
Buildings and Infrastructure [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Segment Revenues	37.1	38.5
Buildings and Infrastructure [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Segment Revenues	6.1	6.7
Geospatial [Member]
Segment Reporting Information [Line Items]
Segment Revenues	146.2	161.2
Geospatial [Member] | North America [Member]
Segment Reporting Information [Line Items]
Segment Revenues	56.8	62.9
Geospatial [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Segment Revenues	50.7	54.7
Geospatial [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Segment Revenues	28.7	31.7
Geospatial [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Segment Revenues	10.0	11.9
Resources and Utilities [Member]
Segment Reporting Information [Line Items]
Segment Revenues	180.3	159.5
Resources and Utilities [Member] | North America [Member]
Segment Reporting Information [Line Items]
Segment Revenues	53.7	41.9
Resources and Utilities [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Segment Revenues	90.4	88.9
Resources and Utilities [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Segment Revenues	17.5	12.7
Resources and Utilities [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Segment Revenues	18.7	16.0
Transportation [Member]
Segment Reporting Information [Line Items]
Segment Revenues	170.6	189.1
Transportation [Member] | North America [Member]
Segment Reporting Information [Line Items]
Segment Revenues	131.8	152.0
Transportation [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Segment Revenues	19.1	21.1
Transportation [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Segment Revenues	10.5	10.5
Transportation [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Segment Revenues	$ 9.2	$ 5.5