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Commitments and Contingencies (Tables) | 12 Months Ended
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Jul. 31, 2017
Commitments and Contingencies Disclosure [Abstract] |
Schedule of future minimum lease commitments under noncancelable capital and operating leases | The future minimum lease commitments for the next five fiscal years, under non-cancelable capital and operating leases with initial or remaining lease terms in excess of one year were as follows:
Years Ending July 31, (In thousands) |  | Capital Leases |  | Operating Leases
2018 |  | $ | 1,153 |  |  | $ | 28,126 |
2019 |  | 966 |  |  | 23,364 |
2020 |  | 30 |  |  | 17,285 |
2021 |  | 13 |  |  | 14,409 |
2022 |  | — |  |  | 10,147 |
Thereafter |  | — |  |  | 59,436 |
Subtotal |  | 2,162 |  |  | 152,767 |
Less: Amount relating to interest |  | (97 | ) |  | — |
Total |  | $ | 2,065 |  |  | $ | 152,767 |

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