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Summary of Significant Accounting Policies, Recently Issued and Recently Adopted Accounting Standards, Recently Adopted and Issued Accounting Standards (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Apr. 30, 2021 | Apr. 30, 2020
ROU Assets and Lease Liabilities [Abstract] |  |
Operating lease, liability | $ 168,272 |
Operating lease, right-of-use assets | 121,430 | $ 142,716
ASU 2016-02 [Member] | Minimum [Member] |  |
ROU Assets and Lease Liabilities [Abstract] |  |
Operating lease, liability | 178,000 |
Operating lease, right-of-use assets | 142,000 |
ASU 2016-13 [Member] |  |
Change in Provision for Credit Losses [Roll Forward] |  |
Balance, beginning of period | 18,335 |
Current period provision | 6,957 |
Amounts written off, less recoveries | (4,463) |
Foreign exchange translation adjustments and other | (1,131) |
Balance, end of period | 21,474 |
ASU 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |
Change in Provision for Credit Losses [Roll Forward] |  |
Balance, beginning of period | $ 1,776 |

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