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Other current assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Increase (Decrease) In Other Noncurrent Assets	$ 167	$ 0

X

- Definition

The increase (decrease) during the reporting period in other noncurrent operating assets not separately disclosed in the statement of cash flows.

+ References

No definition available.

+ Details

Name:	us-gaap_IncreaseDecreaseInOtherNoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration