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Employee Benefit Plans - Schedule of expected future benefit payments (Details) $ in Millions | May 31, 2022 USD ($)
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U.K. | Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2023 | $ 0.9
2024 | 1.3
2025 | 1.5
2026 | 1.5
2027 | 1.5
2028 - 2032 | 7.7
U.S. | Other Postretirement Benefits |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2023 | 1.2
2024 | 1.1
2025 | 1.0
2026 | 0.9
2027 | 0.9
2028 - 2032 | 3.5
Medicare subsidy receipts |
2023 | 0.1
2024 | 0.0
2025 | 0.0
2026 | 0.0
2027 | 0.0
2028 - 2032 | $ 0.1

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