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Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2010
Change in fair value of derivatives, tax	$ (1,419)	$ 3,690	$ 530
Loss (gain) from derivative transactions reclassified into earnings from other comprehensive income, tax	(863)	4,494	1,555
Actuarial gain (loss) on post-retirement liabilities, tax	5,722	(2,450)	780
Loss from postretirement liabilities	$ 242	$ 601	$ 645

Tax effect of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.

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- Definition

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References+ Details