Capital Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	6 Months Ended
Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Earnings Per Share [Abstract]
Net loss	$ (159,190)	$ (64,838)	$ (143,742)	$ (40,164)
Weighted average common shares outstanding - basic and diluted (1)	58,991	61,759	59,089	63,045
Basic	$ (2.70)	$ (1.05)	$ (2.43)	$ (0.64)
Diluted	$ (2.70)	$ (1.05)	$ (2.43)	$ (0.64)
Anti-dilutive securities from stock based compensation plans (excluded from earnings per share calculation)	5,146	4,761	5,146	4,761

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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