Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2015	Feb. 28, 2014
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net earnings	$ 8,995us-gaap_NetIncomeLoss	$ 13,450us-gaap_NetIncomeLoss	$ 16,563us-gaap_NetIncomeLoss	$ 23,684us-gaap_NetIncomeLoss
Other comprehensive income (loss):
Defined benefit pension plan adjustment, net of tax	32	28	64	56
Foreign currency translation adjustment, net of hedging activities and tax	(4,298)	(25)	(8,271)	852
Total other comprehensive income (loss), net of tax expense (benefit) of $1,181, ($237), $1,737 and ($595)	(4,266)	3	(8,207)	908
Total comprehensive income	$ 4,729us-gaap_ComprehensiveIncomeNetOfTax	$ 13,453us-gaap_ComprehensiveIncomeNetOfTax	$ 8,356us-gaap_ComprehensiveIncomeNetOfTax	$ 24,592us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

+ References+ Details