Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Disaggregation of Revenue [Abstract]
Net sales	$ 529.0	$ 566.1
Contract with Customer, Asset and Liability [Abstract]
Contract assets	24.2		$ 22.6
Contract liabilities	4.9		$ 4.0
Increase in contract assets	1.6
Increase in contract liabilities	0.9
VTS [Member]
Disaggregation of Revenue [Abstract]
Net sales	326.5	352.8
VTS [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	319.1	342.8
VTS [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	7.4	10.0
VTS [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	153.3	150.9
VTS [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	126.1	148.4
VTS [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	47.1	53.5
VTS [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales	129.2	145.1
VTS [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales	98.7	99.7
VTS [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales	73.9	83.8
VTS [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
VTS [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
VTS [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
VTS [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales	24.7	24.2
CIS [Member]
Disaggregation of Revenue [Abstract]
Net sales	168.8	183.9
CIS [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	143.9	153.6
CIS [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	24.9	30.3
CIS [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	97.1	104.8
CIS [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	58.6	65.2
CIS [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	13.1	13.9
CIS [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
CIS [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
CIS [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
CIS [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	130.9	135.3
CIS [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	24.2	34.1
CIS [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	11.4	11.5
CIS [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales	2.3	3.0
BHVAC [Member]
Disaggregation of Revenue [Abstract]
Net sales	49.0	45.0
BHVAC [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	49.0	45.0
BHVAC [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	29.1	25.3
BHVAC [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	19.9	19.7
BHVAC [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	38.0	32.0
BHVAC [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	10.6	12.2
BHVAC [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.0	0.0
BHVAC [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales	0.4	0.8
Total Segments [Member]
Disaggregation of Revenue [Abstract]
Net sales	544.3	581.7
Total Segments [Member] | Products Transferred at a Point in Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	512.0	541.4
Total Segments [Member] | Products Transferred Over Time [Member]
Disaggregation of Revenue [Abstract]
Net sales	32.3	40.3
Total Segments [Member] | Americas [Member]
Disaggregation of Revenue [Abstract]
Net sales	279.5	281.0
Total Segments [Member] | Europe [Member]
Disaggregation of Revenue [Abstract]
Net sales	204.6	233.3
Total Segments [Member] | Asia [Member]
Disaggregation of Revenue [Abstract]
Net sales	60.2	67.4
Total Segments [Member] | Automotive [Member]
Disaggregation of Revenue [Abstract]
Net sales	129.2	145.1
Total Segments [Member] | Commercial Vehicle [Member]
Disaggregation of Revenue [Abstract]
Net sales	98.7	99.7
Total Segments [Member] | Off-Highway [Member]
Disaggregation of Revenue [Abstract]
Net sales	73.9	83.8
Total Segments [Member] | Commercial HVAC&R [Member]
Disaggregation of Revenue [Abstract]
Net sales	168.9	167.3
Total Segments [Member] | Data Center Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	34.8	46.3
Total Segments [Member] | Industrial Cooling [Member]
Disaggregation of Revenue [Abstract]
Net sales	11.4	11.5
Total Segments [Member] | Other [Member]
Disaggregation of Revenue [Abstract]
Net sales	$ 27.4	$ 28.0