Pre-Tax Accumulated Net Actuarial Loss and Prior Service Cost (credit) Recognized in Accumulated Other Comprehensive Loss (Detail) (USD $) In Thousands | Aug. 31, 2011 | Aug. 31, 2010 |
|---|---|---|
U.S. Plans | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Unrecognized loss | $ 360,123 | |
| Prior service cost (credit) | 10 | |
| Total | 360,133 | 410,260 |
Non-U.S. Plans | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Unrecognized loss | 161,750 | |
| Prior service cost (credit) | (19,335) | |
| Total | $ 142,415 | $ 144,982 |