Earnings (Loss) Per Share Attributable To CMC (Tables)

12 Months Ended

Aug. 31, 2013

Earnings Per Share [Abstract]

Reconciliation of the denominators of the earnings per share calculations

The reconciliation of the denominators of the earnings per share calculations is as follows:

	August 31,
	2013	2012	2011
Shares outstanding for basic earnings (loss) per share	116,677,836	115,861,986	114,995,616
Effect of dilutive securities:
Stock-based incentive/purchase plans	875,116	921,174	1,115,507
Shares outstanding for diluted earnings (loss) per share	117,552,952	116,783,160	116,111,123