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Basis of Presentation (Narrative) (Details)	64 Months Ended
	May 15, 2017	Mar. 31, 2019	Mar. 31, 2018	May 16, 2017
PST Eletronica Ltda [Member]
Schedule of Equity Method Investments [Line Items]
Percentage ownership in consolidated subsidiary	74.00%
Percentage of additional noncontrolling interest acquired				26.00%
MSIL
Schedule of Equity Method Investments [Line Items]
Ownership percentage		49.00%	49.00%

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+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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