CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - 9 months ended May. 31, 2015 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock	Noncontrolling Interests
Balance at Aug. 31, 2014	$ 2,260,368	$ 244	$ 1,874,219	$ 1,245,772	$ 86,962	$ (965,369)	$ 18,540
Balance (in shares) at Aug. 31, 2014	194,113,850	194,113,850
Shares issued upon exercise of stock options (in shares)		33,268
Shares issued under employee stock purchase plan	$ 9,003	$ 1	9,002
Shares issued under employee stock purchase plan (in shares)		505,534
Vesting of restricted stock awards		$ 1	(1)
Vesting of restricted stock awards (in shares)		1,596,465
Purchases of treasury stock under employee stock plans	(7,536)					(7,536)
Purchases of treasury stock under employee stock plans (in shares)		(398,657)
Treasury shares purchased	(40,040)					(40,040)
Treasury shares purchased (in shares)		(2,022,664)
Recognition of stock-based compensation	53,194		53,194
Excess tax benefit of stock awards	2		2
Declared dividends	(44,902)			(44,902)
Comprehensive income	100,867			196,317	(96,206)		756
Acquisition of noncontrolling interests	329						329
Purchase of noncontrolling interests	(347)						(347)
Balance at May. 31, 2015	$ 2,330,938	$ 246	$ 1,936,416	$ 1,397,187	$ (9,244)	$ (1,012,945)	$ 19,278
Balance (in shares) at May. 31, 2015	193,827,796	193,827,796