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Segment and Geographic Information, Property, Plant and Equipment by Geographical Area (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Mar. 31, 2017
--- | --- | ---
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | $ 504.3 | $ 459.0
Reportable Geographical Components [Member] | United States [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 121.5 | 124.7
Reportable Geographical Components [Member] | Italy [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 62.0 | 55.8
Reportable Geographical Components [Member] | Hungary [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 59.3 | 37.7
Reportable Geographical Components [Member] | China [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 49.6 | 40.0
Reportable Geographical Components [Member] | Mexico [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 49.4 | 47.0
Reportable Geographical Components [Member] | Austria [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 42.8 | 44.3
Reportable Geographical Components [Member] | Germany [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | 37.2 | 28.9
Reportable Geographical Components [Member] | Other [Member] |  |
Segment Reporting Information, Additional Information [Abstract] |  |
Total property, plant and equipment | $ 82.5 | $ 80.6

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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