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Legal Matters (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2018 | Jun. 30, 2017
Loss Contingencies |  |
Litigation Settlement, Amount Awarded to Other Party | $ 25.0 |
Compensatory damages |  |
Loss Contingencies |  |
Loss Contingency, Damages Awarded, Value |  | $ 3.9
Punitive damages |  |
Loss Contingencies |  |
Loss Contingency, Damages Awarded, Value | $ 19.0 | $ 350.0

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- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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