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Earnings Per Share - Narratives (Details) - Convertible Notes, due 2024 - Convertible Debt | Oct. 31, 2017 $ / shares
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Antidilutive Securities Excluded from Computation of Earnings Per Share |
Debt instrument, conversion price (usd per share) | $ 58.725
Maximum |
Antidilutive Securities Excluded from Computation of Earnings Per Share |
Debt instrument, conversion price (usd per share) | $ 71.775

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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details
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