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Goodwill and Other Intangibles (Detail) - Schedule of other intangible assets subject to amortization (USD $)
In Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Aug. 31, 2011
|
Aug. 31, 2010
|
May 31, 2011
|
|
| Beginning balance | $ 18.0 | ||
| Amortization expense | 0.4 | 0.2 | 1.4 |
| Total other intangibles subject to amortization | 17.6 | 2.9 | 18.0 |
|
Customer Lists [Member]
|
|||
| Beginning balance | 0.7 | 0.8 | 0.8 |
| Amortization expense | 0 | (0.1) | (0.2) |
| Foreign currency translation | 0 | 0.1 | 0.1 |
| Total other intangibles subject to amortization | 0.7 | 0.8 | 0.7 |
|
Other Intangible Assets [Member]
|
|||
| Beginning balance | 17.3 | 2.2 | 2.2 |
| Additions due to acquisition | 5.6 | ||
| Reclassified from indefinite-lived intangible assets | 10.7 | ||
| Amortization expense | (0.4) | (0.1) | (1.2) |
| Total other intangibles subject to amortization | $ 16.9 | $ 2.1 | $ 17.3 |