CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock	Noncontrolling Interests
Beginning Balance at Aug. 31, 2012	$ 2,107,335	$ 232	$ 1,752,847	$ 766,934	$ 106,275	$ (521,231)	$ 2,278
Beginning Balance (in shares) at Aug. 31, 2012	206,028,577	206,028,577
Shares issued upon exercise of stock options (in shares)		250,828
Shares issued upon exercise of stock options	3,321	5	3,316
Shares issued under employee stock purchase plan (in shares)		460,173
Shares issued under employee stock purchase plan	7,546		7,546
Vesting of restricted stock awards (in shares)		4,426,886
Purchases of treasury stock under employee stock plans (in shares)		(1,180,553)
Purchases of treasury stock under employee stock plans	(20,221)					(20,221)
Treasury shares purchased (in shares)		(7,342,904)
Treasury shares purchased	(129,262)					(129,262)
Recognition of stock-based compensation	36,676		36,676
Excess tax benefit of stock awards	210		210
Capital contribution of noncontrolling interest	316						316
Declared dividends	(33,953)			(33,953)
Comprehensive income	206,022			194,380	12,349		(707)
Ending Balance at Feb. 28, 2013	$ 2,177,990	$ 237	$ 1,800,595	$ 927,361	$ 118,624	$ (670,714)	$ 1,887
Ending Balance (in shares) at Feb. 28, 2013	202,643,007	202,643,007