Employee Benefit Plans - Schedule of change in fair value of plan assets (Details) - Pension Plans - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
May 31, 2026 |
May 31, 2025 |
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| Change in plan assets: | ||
| Fair value of plan assets at beginning of year | $ 20.1 | |
| Fair value of plan assets at end of year | 29.5 | $ 20.1 |
| UNITED KINGDOM | ||
| Change in plan assets: | ||
| Fair value of plan assets at beginning of year | 20.1 | 21.4 |
| Actual return on plan assets | 2.2 | (2.2) |
| Employer contributions | 8.7 | 1.3 |
| Defined Benefit Plan, Plan Assets, Benefits Paid | (1.5) | (1.6) |
| Foreign currency translation | 0.0 | 1.2 |
| Fair value of plan assets at end of year | $ 29.5 | $ 20.1 |
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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