Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014
Financial Standby Letter of Credit [Member]
Guarantor Obligations [Line Items]
Standby letters of credit	$ 20,152
Third party lease guarantees [Member]
Guarantor Obligations [Line Items]
Number of properties for which the company is secondarily liable for lease payments	1