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Commitments and Contingencies (Tables) | 12 Months Ended
--- | ---
Jul. 31, 2011
Commitments and Contingencies Disclosure [Abstract] |
future minimum lease commitments under noncancelable capital and operating leases |
Years Ending July 31, |  |  |  | Capital Leases |  | Operating Leases
--- | --- | --- | --- | --- | --- | ---
2012 |  |  |  | $ | 231 |  |  | $ | 18,984 |
2013 |  |  |  |  | 204 |  |  |  | 15,147 |
2014 |  |  |  |  | 182 |  |  |  | 10,470 |
2015 |  |  |  |  | — |  |  |  | 8,067 |
2016 |  |  |  |  | — |  |  |  | 6,175 |
Thereafter |  |  |  |  | — |  |  |  | 37,029 |
|  |  |  |  | 617 |  |  | $ | 95,872 |
Less amount representing interest |  |  |  |  | (36 | ) |  |  |  |
|  |  |  | $ | 581 |  |  |  |  |

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