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Net Loss Per Share of Common Stock (Details) (Stock units and stock options to purchase common stock) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Stock units and stock options to purchase common stock
Securities excluded from computation of diluted net income (loss) per share of common stock
Antidilutive securities (in shares)	277	787	567	580

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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