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Supplemental Cash Flow Information (Narrative) (Details) - DNI [Member] $ in Millions | 9 Months Ended
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Mar. 31, 2019 USD ($)
Percentage of ownership interest prior to disposal | 55.00%
Percentage of ownership interest after disposal | 38.00%
Proceeds from sale of business | $ 27.6

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
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