Derivatives Narrative (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
May 31, 2016 |
May 31, 2015 |
May 31, 2016 |
May 31, 2015 |
Aug. 31, 2015 |
|
| Derivative [Line Items] | |||||
| Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives and Not Designated as Hedging Instruments at Fair Value | $ (394) | $ 2,310 | $ (1,028) | $ 304 | |
| Fair Value Hedging [Member] | |||||
| Derivative [Line Items] | |||||
| Derivative, Notional Amount | $ 80,500 | $ 80,500 | $ 170,700 | ||