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Revenue Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 1,062.9	$ 803.5	$ 2,088.3	$ 1,726.9
Amount of revenue for remaining performance obligations	456.9		456.9
Unbilled receivables			110.9	$ 129.2	$ 129.2
Additional unbilled revenue recognized			179.4		393.6
Less: amounts billed to customers			189.9		411.9
Unbilled receivables	100.4		$ 100.4		$ 110.9
U.S. Government \| Customer Concentration Risk \| Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenues			7.00%	9.00%
Original equipment manufacturers \| Customer Concentration Risk \| Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenues			61.00%	59.00%
Distribution/end users \| Customer Concentration Risk \| Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenues			39.00%	41.00%
Transferred over Time \| Customer Concentration Risk \| Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenues			9.00%	13.00%
United States
Disaggregation of Revenue [Line Items]
Net sales	439.0	360.3	$ 868.1	$ 791.1
Americas, excluding the United States
Disaggregation of Revenue [Line Items]
Net sales	101.4	56.1	193.4	139.9
Europe / Middle East / Africa
Disaggregation of Revenue [Line Items]
Net sales	261.5	191.7	515.8	416.0
China
Disaggregation of Revenue [Line Items]
Net sales	170.6	148.4	329.3	251.2
Asia-Pacific, excluding China
Disaggregation of Revenue [Line Items]
Net sales	90.4	47.0	181.7	128.7
Mobile Industries
Disaggregation of Revenue [Line Items]
Net sales	494.2	342.6	998.7	809.3
Mobile Industries \| United States
Disaggregation of Revenue [Line Items]
Net sales	237.4	186.6	480.3	424.8
Mobile Industries \| Americas, excluding the United States
Disaggregation of Revenue [Line Items]
Net sales	52.3	26.8	101.1	75.6
Mobile Industries \| Europe / Middle East / Africa
Disaggregation of Revenue [Line Items]
Net sales	124.3	78.8	251.4	187.5
Mobile Industries \| China
Disaggregation of Revenue [Line Items]
Net sales	32.2	26.4	66.6	48.2
Mobile Industries \| Asia-Pacific, excluding China
Disaggregation of Revenue [Line Items]
Net sales	48.0	24.0	99.3	73.2
Process Industries
Disaggregation of Revenue [Line Items]
Net sales	568.7	460.9	1,089.6	917.6
Process Industries \| United States
Disaggregation of Revenue [Line Items]
Net sales	201.6	173.7	387.8	366.3
Process Industries \| Americas, excluding the United States
Disaggregation of Revenue [Line Items]
Net sales	49.1	29.3	92.3	64.3
Process Industries \| Europe / Middle East / Africa
Disaggregation of Revenue [Line Items]
Net sales	137.2	112.9	264.4	228.5
Process Industries \| China
Disaggregation of Revenue [Line Items]
Net sales	138.4	122.0	262.7	203.0
Process Industries \| Asia-Pacific, excluding China
Disaggregation of Revenue [Line Items]
Net sales	$ 42.4	$ 23.0	$ 82.4	$ 55.5
Service Revenue \| Customer Concentration Risk \| Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenues	4.00%			5.00%