Description of Business (Narrative) (Details)	3 Months Ended	9 Months Ended
Dec. 31, 2018	Dec. 31, 2018
Sales Revenue, Goods, Net \| US
Revenue from External Customer [Line Items]
Sales revenue goods net percentage	53.00%	54.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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