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Derivatives Narrative (Details) (USD $)
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3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Feb. 28, 2014
|
Feb. 28, 2013
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Feb. 28, 2014
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Feb. 28, 2013
|
Feb. 28, 2014
Level 2 Valuation:
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Aug. 31, 2013
Level 2 Valuation:
|
Feb. 28, 2014
Cash Flow Hedging [Member]
|
Aug. 31, 2013
Cash Flow Hedging [Member]
|
Feb. 28, 2014
Fair Value Hedging [Member]
|
Aug. 31, 2013
Fair Value Hedging [Member]
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|
| Derivative [Line Items] | ||||||||||
| Foreign currency derivatives | $ 431,000 | $ 143,000 | ||||||||
| Derivative, Notional Amount | 4,900,000 | 9,700,000 | 150,500,000 | 383,600,000 | ||||||
| Unrealized losses expected to be reclassified during next 12 months | (100,000) | (100,000) | ||||||||
| Net foreign currency gain (loss) | $ (2,600,000) | $ (900,000) | $ (11,300,000) | $ (300,000) | ||||||