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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2021
Stock-based compensation | 0.70% | (3.60%) | (14.30%)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations | $ 22,254 | $ 16,127 | $ 19,196
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 11,025 | 11,179 | 16,754
Operating Loss Carryforwards | 63,400 |  |
Deferred Tax Assets, Tax Credit Carryforwards, Foreign | 4,200 |  |
Foreign Refundable Payroll Tax Credits |  | 7,000 | $ 30,800
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | 700 |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 5,100 |  |
Deferred Tax Assets, Gross | 160,758 | 146,318 |
Valuation Allowance [Abstract] |  |  |
Tax Credit Carryforward, Valuation Allowance | 4,200 |  |
Deferred Tax Assets, Valuation Allowance | 9,603 | $ 5,188 |
State and Local Jurisdiction [Member] |  |  |
Operating loss carryforwards, valuation allowance | 4,400 |  |
Foreign Tax Authority [Member] |  |  |
Operating Loss Carryforwards | 52,800 |  |
Deferred Tax Assets, Gross | 1,000 |  |
Valuation Allowance [Abstract] |  |  |
Deferred Tax Assets, Valuation Allowance | 1,000 |  |
Peak Resorts, Inc. [Member] |  |  |
Operating Loss Carryforwards | $ 10,600 |  |

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