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Cash, Cash Equivalents, and Restricted Cash and Cash Equivalents (Tables) | 6 Months Ended
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Jan. 31, 2020
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract] |
Schedule of cash, cash equivalents, and restricted cash and cash equivalents |
|  | January 31, 2020 |  |  | July 31, 2019 |
|  | (in thousands) |
Cash and cash equivalents |  | $ | 61,091 |  |  | $ | 80,168 |
Restricted cash and cash equivalents |  |  | 172,003 |  |  |  | 177,031 |
Total cash, cash equivalents, and restricted cash and cash equivalents |  | $ | 233,094 |  |  | $ | 257,199 |

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