Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Gain (loss) on hedging derivatives, deferred taxes | $ 0.1 | $ 0.1 | $ (0.3) | $ 0.3 |
| Pension and postretirement liability adjustment, deferred taxes | $ (0.5) | $ (3.6) | $ (2.3) | $ 7.1 |