|
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | |
|---|---|---|
|
Apr. 30, 2013
|
Apr. 30, 2012
|
|
| Income Taxes [Abstract] | ||
| Estimated effective tax rate (in hundredths) | 42.70% | 18.30% |
| Tax settlements | $ 0.3 | |