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Accumulated Other Comprehensive Income (Loss) - Effect of Amounts Reclassified out of Each Component of Accumulated Other Comprehensive Income (Loss) into Net Income (Detail) - Reclassification out of accumulated other comprehensive income (loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications into net income	$ (4,012)	$ 5,542	$ (8,487)	$ 10,848
Revenues | Gain (loss) on cash flow hedges, net of taxes
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications into net income	199	(169)	363	1,498
Operating expenses | Gain (loss) on cash flow hedges, net of taxes
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications into net income	$ (4,211)	$ 5,711	$ (8,850)	$ 9,350

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount after tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581

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