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Earnings (Loss) Per Share Calculation (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Numerator
Net loss	$ (40,637)us-gaap_NetIncomeLoss	$ (85,431)us-gaap_NetIncomeLoss	$ (144,021)us-gaap_NetIncomeLoss
Denominator
Weighted average basic common shares outstanding (in shares)	105,783	102,350	99,341
Dilutive weighted average shares outstanding (in shares)	105,783	102,350	99,341
Earning Per Share [Abstract]
Basic EPS (in dollars per share)	$ (0.38)us-gaap_EarningsPerShareBasic	$ (0.83)us-gaap_EarningsPerShareBasic	$ (1.45)us-gaap_EarningsPerShareBasic
Diluted EPS (in dollars per share)	$ (0.38)us-gaap_EarningsPerShareDiluted	$ (0.83)us-gaap_EarningsPerShareDiluted	$ (1.45)us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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