CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Tax Benefit From Stockbased Compensation [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Balance at Aug. 31, 2010	$ 3	$ 379,368	$ 4,490	$ (16,672)	$ (15,578)	$ (15,568)	$ 336,043
Balance (in shares) at Aug. 31, 2010	30,625					727
Exercise of stock options		7					7
Exercise of stock options (in shares)	1
Stock-based compensation		932	(1)				931
Change in fair value of interest rate swaps, net of tax				50			50
Net income					14,853		14,853
Translation adjustment				(198)			(198)
Comprehensive income							14,705
Balance at Nov. 30, 2010	3	380,307	4,489	(16,820)	(725)	(15,568)	351,686
Balance (in shares) at Nov. 30, 2010	30,626					727
Balance at Aug. 31, 2011	3	383,549	5,242	(22,915)	28,238	(18,279)	375,838
Balance (in shares) at Aug. 31, 2011	30,696					796
Purchase of treasury stock						3	3
Stock-based compensation		966					966
Change in fair value of interest rate swaps, net of tax				662			662
Amortization of prior service costs on defined benefit plan, net of tax				9			9
Net income					13,989		13,989
Translation adjustment to record merger of subsidiaries and correction to translation of Property and Equipment, net				(8,888)			(8,888)
Translation adjustment				(217)			(217)
Comprehensive income							5,555
Balance at Nov. 30, 2011	$ 3	$ 384,515	$ 5,242	$ (31,349)	$ 42,227	$ (18,276)	$ 382,362
Balance (in shares) at Nov. 30, 2011	30,696					796