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Financial Risk Management and Financial Instruments - Schedule of Trade Receivables (Details) - USD ($) $ in Thousands | May 31, 2021 | May 31, 2020
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Financing Receivable Recorded Investment Past Due [Line Items] |  |
Accounts receivable, net | $ 87,309 | $ 37,931
0-30 Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Accounts receivable, net | $ 70,997 |
Financing receivable, Percentage | 82.00% |
31-60 Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Accounts receivable, net | $ 8,253 |
Financing receivable, Percentage | 9.00% |
61-90 Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Accounts receivable, net | $ 1,051 |
Financing receivable, Percentage | 1.00% |
90+ Days |  |
Financing Receivable Recorded Investment Past Due [Line Items] |  |
Accounts receivable, net | $ 7,008 |
Financing receivable, Percentage | 8.00% |

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