Earnings per Share and Stock-Based Compensation - Reconciliation of Denominator of Each Net Loss per Share (Detail) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Earnings per Share and Stock Based Compensation [Abstract]
Shares used in computing basic net loss/income per share	170,794	167,624	170,337	166,735
Dilutive effect of stock options and restricted stock	0	4,200	0	0
Dilutive effect of stock warrants	0	18,744	0	0
Shares used in computing diluted net loss/income per share	170,794	190,568	170,337	166,735