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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3536-108585

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 10
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Stockholders' Equity (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
Stockholders' Equity (Details) - USD ($) $ in Thousands	Jun. 15, 2017	Jul. 31, 2007	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015	Jun. 11, 2007
Option Indexed to Issuer's Equity [Line Items]
Cash paid during the fiscal year for interest			$ 47,235	$ 46,897	$ 40,772
0.875% Convertible Senior Notes due June 15, 2017
Option Indexed to Issuer's Equity [Line Items]
Interest rate on convertible notes			0.875%			0.875%
Aggregate principal amount of debt repurchased			$ 46,300	$ 262,500
0.875% Convertible Senior Notes due June 15, 2017 \| June 2007 Call Spread Option
Option Indexed to Issuer's Equity [Line Items]
Payment for derivative instrument		$ 42,500
Secured Debt \| 0.875% Convertible Senior Notes due June 15, 2017
Option Indexed to Issuer's Equity [Line Items]
Interest rate on convertible notes	0.875%
Aggregate principal amount of debt repurchased	$ 185,300
Cash paid during the fiscal year for interest	$ 800