Accrued Restructuring Charges (Summary Of Restructuring And Other Costs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2014
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	$ 748
Amounts incurred	667
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	428
Amounts incurred	347
Lease Abandonment [Member]
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	482
Amounts incurred	482
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	127
Amounts incurred	127
Deferred Rent Liability [Member]
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	(356)
Amounts incurred	(356)
Other Costs [Member]
Restructuring Cost and Reserve [Line Items]
Amounts expected to be incurred	67
Amounts incurred	$ 67