Fair Value Measurements - Reconciliation of Contingent Consideration (Detail) $ in Thousands	9 Months Ended
Jul. 31, 2014 USD ($)
Business Acquisition, Contingent Consideration [Line Items]
Beginning Balance	$ 15,602
Revalue Adjustment	40,767
Ending Balance	56,369
RFG [Member]
Business Acquisition, Contingent Consideration [Line Items]
Beginning Balance	15,602
Revalue Adjustment	40,767
Ending Balance	$ 56,369

Amount of liability recognized arising from contingent consideration in a business combination.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 35

-Paragraph 1

-Subparagraph b

-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 25

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant