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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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May 31, 2026
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) The following table presents the impact on earnings of reclassifications out of Accumulated other comprehensive income (loss) for the fiscal years ended May 31:
| 2026 |  | 2025 |  | 2024
| UK Pension Plan |  | US Postretirement Benefits |  | UK Pension Plan |  | US Postretirement Benefits |  | UK Pension Plan |  | US Postretirement Benefits
Amortization of prior service (credit) loss | $ | 0.0 |  |  | $ | (0.8) |  |  | $ | 0.0 |  |  | $ | (0.8) |  |  | $ | 0.0 |  |  | $ | (0.8) |
Amortization of net actuarial loss (gain) |  | 1.7 |  |  |  | (0.1) |  |  |  | 1.4 |  |  |  | (0.1) |  |  |  | 1.3 |  |  |  | 0.0 |
Tax (benefit) expense |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | 0.2 |  |  |  | — |  |  |  | 0.2 |
Amounts reclassified from Accumulated other comprehensive income (loss) | $ | 1.7 |  |  | $ | (0.7) |  |  | $ | 1.4 |  |  | $ | (0.7) |  |  | $ | 1.3 |  |  | $ | (0.6) |
The amounts reclassified out of Accumulated other comprehensive income (loss) were recognized in Other components of net periodic benefit (cost) for all periods presented. The following tables summarize the activity in Accumulated other comprehensive income (loss), net of tax, by component for the periods indicated:
| Foreign currency translation adjustments |  | UK Pension Plan |  | US Postretirement Benefits |  | Total
Balance at May 31, 2024 (1) | $ | (46.9) |  |  | $ | (11.8) |  |  | $ | 6.2 |  |  | $ | (52.5) |
Other comprehensive income (loss) before reclassifications | $ | 10.9 |  |  | $ | (0.6) |  |  | $ | 0.0 |  |  | $ | 10.3 |
Less: amounts reclassified from Accumulated other comprehensive income (loss) (net of taxes) |  |  |  |  |  |  |  |  |  |  |
Amortization of net actuarial loss | $ | — |  |  | $ | 1.4 |  |  | $ | (0.1) |  |  | $ | 1.3 |
Amortization of prior service (credit) cost |  | — |  |  |  | 0.0 |  |  |  | (0.6) |  |  |  | (0.6) |
Other comprehensive income (loss) |  | 10.9 |  |  |  | 0.8 |  |  |  | (0.7) |  |  |  | 11.0 |
Balance at May 31, 2025 (1) | $ | (36.0) |  |  | $ | (11.0) |  |  | $ | 5.5 |  |  | $ | (41.5) |
Other comprehensive income (loss) before reclassifications | $ | 4.7 |  |  | $ | (3.4) |  |  | $ | (0.2) |  |  | $ | 1.1 |
Less: amounts reclassified from Accumulated other comprehensive income (loss) (net of taxes) |  |  |  |  |  |  |  |  |  |  |
Cumulative translation adjustment related to sale of equity method investment (2) |  | 3.5 |  |  |  | — |  |  |  | — |  |  |  | 3.5 |
Amortization of net actuarial loss | $ | — |  |  | $ | 1.7 |  |  | $ | (0.1) |  |  | $ | 1.6 |
Amortization of prior service (credit) cost |  | — |  |  |  | 0.0 |  |  |  | (0.6) |  |  |  | (0.6) |
Other comprehensive income (loss) |  | 8.2 |  |  |  | (1.7) |  |  |  | (0.9) |  |  |  | 5.6 |
Balance at May 31, 2026 (1) | $ | (27.8) |  |  | $ | (12.7) |  |  | $ | 4.6 |  |  | $ | (35.9) |
(1) Accumulated other comprehensive income (loss) related to the UK Pension Plan and the US Postretirement Benefits are reported net of taxes of $1.5, $1.8 and $2.0 at May 31, 2026, 2025, and 2024, respectively.

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