Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Feb. 29, 2012	Feb. 28, 2011	Feb. 29, 2012	Feb. 28, 2011
Revenues	$ 886,612	$ 721,842	$ 1,698,787	$ 1,396,946
Operating expense:
Cost of goods sold	817,087	632,856	1,559,303	1,235,402
Selling, general and administrative	52,370	44,033	108,362	88,908
Income from joint ventures	(832)	(984)	(1,833)	(1,741)
Operating income	17,987	45,937	32,955	74,377
Other income (expense):
Interest income	72	234	234	289
Interest expense	(3,472)	(1,157)	(6,743)	(1,755)
Other income (expense), net	545	2,854	(11)	3,015
Total other income (expense)	(2,855)	1,931	(6,520)	1,549
Income from continuing operations before income taxes	15,132	47,868	26,435	75,926
Income tax expense	(4,767)	(15,745)	(8,328)	(24,909)
Income from continuing operations	10,365	32,123	18,107	51,017
Income from discontinued operations, net of tax	0	11	0	34
Net income	10,365	32,134	18,107	51,051
Net income attributable to noncontrolling interests	(735)	(1,309)	(1,462)	(2,432)
Net income attributable to SSI	$ 9,630	$ 30,825	$ 16,645	$ 48,619
Basic:
Income per share from continuing operations attributable to SSI	$ 0.35	$ 1.12	$ 0.61	$ 1.76
Income per share from discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net income per share attributable to SSI	$ 0.35	$ 1.12	$ 0.61	$ 1.76
Diluted:
Income per share from continuing operations attributable to SSI	$ 0.35	$ 1.10	$ 0.60	$ 1.74
Income per share from discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Net income per share attributable to SSI	$ 0.35	$ 1.10	$ 0.60	$ 1.74
Weighted average number of common shares:
Basic	27,509	27,627	27,480	27,595
Diluted	27,781	27,944	27,734	27,918
Dividends declared per common share	$ 0.017	$ 0.017	$ 0.034	$ 0.034