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Employee Benefit Plans - Schedule of total weighted average asset allocations (Details) - U.K. - Pension Plans | May 31, 2024 | May 31, 2023
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Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 100.00% | 100.00%
Equity securities |  |
Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 0.00% | 29.60%
Cash and cash equivalents |  |
Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 4.10% | 5.10%
Liability-driven instruments |  |
Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 43.50% | 41.70%
Real estate |  |
Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 0.00% | 6.80%
Other |  |
Defined Benefit Plan, Information about Plan Assets [Abstract] |  |
Weighted average asset allocations | 15.10% | 16.80%

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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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