|
Employee Benefit Plans (Detail) (USD $)
In Millions |
12 Months Ended | 3 Months Ended | |
|---|---|---|---|
|
May 31, 2012
|
Aug. 31, 2011
United States Pension Plans of US Entity, Defined Benefit [Member]
|
Aug. 31, 2011
UK Pension Plan [Member]
|
|
| Defined Benefit Plan, Minimum Contribution Required | $ 0 | $ 0.2 | |
| Estimate Cash Contribute To Pension Plans | $ 8.5 | ||