Earnings (Loss) Per Share Calculation (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Numerator
Net loss	$ (15,936)	$ (47,324)
Denominator
Weighted average basic common shares outstanding (in shares)	104,501	101,204
Weighted average dilutive potential common shares outstanding (in shares)	104,501	101,204
EPS
Basic EPS (in dollars per share)	$ (0.15)	$ (0.47)
Diluted EPS (in dollars per share)	$ (0.15)	$ (0.47)