Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Nov. 30, 2015	Nov. 30, 2014
Revenues	$ 270,504	$ 242,676
Operating expenses
Cost of services	114,736	97,543
Selling, general and administrative	68,460	64,873
Total operating expenses	183,196	162,416
Operating income	87,308	80,260
Other income	93	430
Income before income taxes	87,401	80,690
Provision for income taxes	27,436	24,830
Net income	$ 59,965	$ 55,860
Basic earnings per common share (in dollars per share)	$ 1.45	$ 1.34
Diluted earnings per common share (in dollars per share)	$ 1.43	$ 1.32
Basic weighted average common shares (in shares)	41,387	41,683
Diluted weighted average common shares (in shares)	42,063	42,340