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Description of Business and Summary of Significant Accounting Policies (Details) $ in Millions | 12 Months Ended
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Jul. 31, 2020 USD ($) | Jul. 31, 2019 USD ($)
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Number of reportable segments | 2 |
Restricted cash and cash equivalents (in Dollars) | $ 11.0 | $ 13.2
Advertising expense (in Dollars) | 15.6 | 17.7
Amortization expense related to capitalized software (in Dollars) | 14.6 | 16.3
Unamortized capitalized internal use software costs (in Dollars) | $ 18.1 | $ 21.9
Tax position ultimate settlement, percentage | 50.00% |
Customer Lists [Member] | Sales Revenue Net [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Number of customers | 5 |
Concentration risk, percentage | 12.70% | 13.60%
Customer Lists [Member] | Accounts Receivable [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Number of customers | 5 |
Concentration risk, percentage | 13.80% | 20.60%
Equipment [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 7 years |
Equipment [Member] | Minimum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 5 years |
Equipment [Member] | Maximum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 20 years |
Computer Software [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 3 years |
Computer Software [Member] | Minimum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 2 years |
Computer Software [Member] | Maximum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 5 years |
Furniture and Fixtures [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 7 years |
Furniture and Fixtures [Member] | Minimum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 5 years |
Furniture and Fixtures [Member] | Maximum [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of long-lived assets | 10 years |
Software and Software Development Costs [Member] |  |
Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lives of internal-use software | The Company capitalizes the cost of internal-use software that has a useful life in excess of one year. |

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