CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock	Noncontrolling Interests
Cumulative effect adjustment for adoption of new accounting standards				$ 40,855
Beginning Balance at Aug. 31, 2018	$ 1,963,380	$ 257	$ 2,218,673	1,760,097	$ (19,399)	$ (2,009,371)	$ 13,123
Shares issued under employee stock purchase plan			8
Vesting of restricted stock awards		2	(2)
Recognition of stock-based compensation			17,148
Declared dividends				(13,101)
Net income	124,074			123,600			474
Other comprehensive income (loss)	(12,549)				(12,549)
Purchases of treasury stock under employee stock plans						(9,715)
Treasury shares purchased						(204,587)
Ending Balance at Nov. 30, 2018	1,905,513	259	2,235,827	1,911,451	(31,948)	(2,223,673)	13,597
Beginning Balance at Aug. 31, 2019	1,900,758	260	2,304,552	2,037,037	(82,794)	(2,371,612)	13,315
Shares issued under employee stock purchase plan			0
Vesting of restricted stock awards		2	(2)
Recognition of stock-based compensation			27,757
Declared dividends				(12,701)
Net income	40,714			40,422			292
Other comprehensive income (loss)	8,472				8,472
Purchases of treasury stock under employee stock plans						(19,317)
Treasury shares purchased						(96,390)
Ending Balance at Nov. 30, 2019	$ 1,849,293	$ 262	$ 2,332,307	$ 2,064,758	$ (74,322)	$ (2,487,319)	$ 13,607