XML 60 R93.htm IDEA: XBRL DOCUMENT v2.3.0.15
Earnings (Loss) Per Share Attributable to CMC (Details Textual) (USD $)
Aug. 31, 2011
Aug. 31, 2010
Aug. 31, 2009
Earnings (Loss) Per Share Attributable to CMC [Abstract]   
Average price per share$ 0.00$ 0.00$ 16.62
Number, SARs antidilutive share commitment002,879,707