Segment and Geographic Information, Capital Expenditures and Depreciation and Amortization Expense by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Total capital expenditures	$ 71.0	$ 64.4	$ 62.8
Total depreciation and amortization expense	76.7	58.3	50.2
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Total capital expenditures	22.2	26.3	26.7
Total depreciation and amortization expense	22.2	22.7	22.1
Operating Segments [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Total capital expenditures	26.8	24.7	24.8
Total depreciation and amortization expense	18.4	16.5	18.0
Operating Segments [Member] | Asia [Member]
Segment Reporting Information [Line Items]
Total capital expenditures	12.4	8.5	6.2
Total depreciation and amortization expense	7.6	7.0	6.5
Operating Segments [Member] | CIS [Member]
Segment Reporting Information [Line Items]
Total capital expenditures	9.0	3.4	0.0
Total depreciation and amortization expense	24.3	7.9	0.0
Operating Segments [Member] | BHVAC [Member]
Segment Reporting Information [Line Items]
Total capital expenditures	0.6	1.5	5.1
Total depreciation and amortization expense	$ 4.2	$ 4.2	$ 3.6