Commitments and Contingencies Gain Contingency (Details) - Positive Outcome of Litigation [Member] $ in Thousands	Oct. 31, 2016 USD ($)
Gain Contingencies [Line Items]
Gain Contingency, Unrecorded Amount	$ 13,750
Trademark Infringement Award, Profits [Member]
Gain Contingencies [Line Items]
Gain Contingency, Unrecorded Amount	5,500
Trademark Infringement Award, Punitive Damages [Member]
Gain Contingencies [Line Items]
Gain Contingency, Unrecorded Amount	$ 8,250

The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6397426&loc=d3e17499-108355

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