Segment Information - Segment Revenue by Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	[1]	Jun. 29, 2018	Jun. 30, 2017	[1]
Segment Reporting Information [Line Items]
Revenue	$ 785.5	$ 659.9	[2],[3]	$ 1,527.7	$ 1,270.5	[2],[3]
North America [Member]
Segment Reporting Information [Line Items]
Revenue	411.8	364.4		794.1	686.1
Europe [Member]
Segment Reporting Information [Line Items]
Revenue	222.8	162.8		449.2	327.2
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	107.4	90.1		202.0	174.6
Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	43.5	42.6		82.4	82.6
Buildings and Infrastructure [Member]
Segment Reporting Information [Line Items]
Revenue	274.3	220.6	[3]	499.0	407.1	[3]
Buildings and Infrastructure [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	146.2	117.9		259.5	214.6
Buildings and Infrastructure [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	83.6	62.7		159.2	120.2
Buildings and Infrastructure [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	37.4	31.2		66.6	54.8
Buildings and Infrastructure [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	7.1	8.8		13.7	17.5
Geospatial [Member]
Segment Reporting Information [Line Items]
Revenue	184.4	164.6	[3]	358.9	314.2	[3]
Geospatial [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	70.2	64.3		139.6	119.5
Geospatial [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	56.2	45.9		105.8	87.4
Geospatial [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	45.0	39.6		88.3	80.0
Geospatial [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	13.0	14.8		25.2	27.3
Resources and Utilities [Member]
Segment Reporting Information [Line Items]
Revenue	145.0	111.6	[3]	304.2	231.8	[3]
Resources and Utilities [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	48.4	45.6		96.8	87.7
Resources and Utilities [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	61.8	37.1		141.7	86.3
Resources and Utilities [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	12.3	11.0		23.6	22.3
Resources and Utilities [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	22.5	17.9		42.1	35.5
Transportation [Member]
Segment Reporting Information [Line Items]
Revenue	181.8	163.1	[3]	365.6	317.4	[3]
Transportation [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	147.0	136.6		298.2	264.3
Transportation [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	21.2	17.1		42.5	33.3
Transportation [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	12.7	8.3		23.5	17.5
Transportation [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	$ 0.9	$ 1.1		$ 1.4	$ 2.3

[1] Adjusted to reflect adoption of the new revenue recognition standard, Revenue from Contracts with Customers. For further information, see Note 2.

[2] See Note 2 for a summary of adjustments

[3] See Note 2 for a summary of adjustments