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, 2011	$ 1,883,823	$ 225	$ 1,649,431	$ 441,793	$ 194,706	$ (419,035)	$ 16,703
Beginning Balance (in shares) at Aug. 31, 2011	203,416,503	203,416,503
Shares issued upon exercise of stock options (in shares)		893,215
Shares issued upon exercise of stock options	12,358		12,358
Shares issued under employee stock purchase plan (in shares)		372,118
Shares issued under employee stock purchase plan	6,218	1	6,217
Vesting of restricted stock awards (in shares)		5,593,169
Vesting of restricted stock awards		5	(5)
Purchases of treasury stock under employee stock plans, (in shares)		(1,589,496)
Purchases of treasury stock under employee stock plans	(31,181)					(31,181)
Treasury shares purchased (In share)		(3,212,418)
Treasury shares purchased	(70,991)					(70,991)
Recognition of stock-based compensation	59,830		59,830
Excess tax benefit of stock awards	737		737
Declared dividends	(51,983)			(51,983)
Comprehensive income	228,460			311,890	(85,164)		1,734
Declared dividends to noncontrolling interests	(333)			(333)
Purchase of noncontrolling interests	(20,501)		(4,658)		(277)		(15,566)
Foreign currency adjustments attributable to noncontrolling interests	(560)						(560)
Ending Balance at May. 31, 2012	$ 2,015,877	$ 231	$ 1,723,910	$ 701,367	$ 109,265	$ (521,207)	$ 2,311
Ending Balance (in shares) at May. 31, 2012	205,473,091	205,473,091