Long-Term Debt (Schedule Of Aggregate Maturities For Debt Outstanding) (Details) - USD ($) $ in Thousands |
Jan. 31, 2017 |
Jul. 31, 2016 |
Jan. 31, 2016 |
|---|---|---|---|
| Debt Instrument [Line Items] | |||
| 2017 (February 2017 through July 2017) | $ 19,051 | ||
| 2018 | 38,397 | ||
| 2019 | 38,455 | ||
| 2020 | 38,516 | ||
| 2021 | 38,580 | ||
| Thereafter | 1,086,577 | ||
| Total debt | $ 1,259,576 | $ 702,320 | $ 695,535 |