Earnings (Loss) Per Share Calculation (Details) - 3.75% Convertible Senior Notes due October 15, 2018 (New) - shares shares in Thousands	12 Months Ended
Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Interest rate on convertible notes	3.75%
Shares underlying Convertible Senior Notes due (in shares)	0	404	0

Contractual interest rate for funds borrowed, under the debt agreement.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 40
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