CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - 9 months ended May 31, 2016 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Noncontrolling Interests
Balance at Aug. 31, 2015	$ 2,335,011	$ 247	$ 1,955,104	$ 1,468,910	$ (50,854)	$ (1,058,551)	$ 20,155
Balance (in shares) at Aug. 31, 2015	192,068,068	192,068,068
Shares issued upon exercise of stock options (in shares)		19,109
Shares issued under employee stock purchase plan	$ 10,660		10,660
Shares issued under employee stock purchase plan (in shares)		594,044
Vesting of restricted stock awards		$ 2	(2)
Vesting of restricted stock awards (in shares)		1,789,163
Purchases of treasury stock under employee stock plans	(10,490)					(10,490)
Purchases of treasury stock under employee stock plans (in shares)		(454,836)
Treasury shares purchased	(54,567)					(54,567)
Treasury shares purchased (in shares)		(2,794,929)
Recognition of stock-based compensation	58,505		58,505
Excess tax benefit of stock awards	259		259
Declared dividends	(47,546)			(47,546)
Comprehensive income	220,934			216,028	4,747		159
Declared dividends to noncontrolling interests	(1,500)						(1,500)
Foreign currency adjustments attributable to noncontrolling interests	(9)						(9)
Balance at May. 31, 2016	$ 2,511,257	$ 249	$ 2,024,526	$ 1,637,392	$ (46,107)	$ (1,123,608)	$ 18,805
Balance (in shares) at May. 31, 2016	191,220,619	191,220,619