Employee Benefit Plans (Components Of Net Periodic Pension Costs) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2019 |
Apr. 30, 2018 |
Apr. 30, 2019 |
Apr. 30, 2018 |
|
| Net periodic benefit costs: | ||||
| Service cost | $ 1.5 | $ 2.1 | $ 4.5 | $ 6.2 |
| Interest cost | 4.1 | 3.8 | 12.3 | 11.2 |
| Expected return on assets | (6.6) | (6.6) | (19.9) | (19.7) |
| Prior service cost amortization | 0.1 | 0.0 | 0.4 | 0.3 |
| Actuarial loss amortization | 1.1 | 1.2 | 3.3 | 3.5 |
| Net periodic benefit costs | $ 0.2 | $ 0.5 | $ 0.6 | $ 1.5 |