Segment Information - Segment Revenue by Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2018	Mar. 31, 2017	[1]
Segment Reporting Information [Line Items]
Revenue	$ 742.2	$ 610.6	[2],[3]
North America [Member]
Segment Reporting Information [Line Items]
Revenue	382.3	321.7
Europe [Member]
Segment Reporting Information [Line Items]
Revenue	226.4	164.4
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	94.6	84.5
Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	38.9	40.0
Buildings and Infrastructure [Member]
Segment Reporting Information [Line Items]
Revenue	224.7	186.5	[3]
Buildings and Infrastructure [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	113.3	96.7
Buildings and Infrastructure [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	75.6	57.5
Buildings and Infrastructure [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	29.2	23.6
Buildings and Infrastructure [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	6.6	8.7
Geospatial [Member]
Segment Reporting Information [Line Items]
Revenue	174.5	149.6	[3]
Geospatial [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	69.4	55.2
Geospatial [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	49.6	41.5
Geospatial [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	43.3	40.4
Geospatial [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	12.2	12.5
Resources and Utilities [Member]
Segment Reporting Information [Line Items]
Revenue	159.2	120.2	[3]
Resources and Utilities [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	48.4	42.1
Resources and Utilities [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	79.9	49.2
Resources and Utilities [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	11.3	11.3
Resources and Utilities [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	19.6	17.6
Transportation [Member]
Segment Reporting Information [Line Items]
Revenue	183.8	154.3	[3]
Transportation [Member] | North America [Member]
Segment Reporting Information [Line Items]
Revenue	151.2	127.7
Transportation [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Revenue	21.3	16.2
Transportation [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	10.8	9.2
Transportation [Member] | Rest of World [Member]
Segment Reporting Information [Line Items]
Revenue	$ 0.5	$ 1.2

[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