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v3.23.4

Revenue Recognition - Contract Assets and Liabilities and Remaining Performance Obligations (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Nov. 30, 2023 | Nov. 30, 2022 | Nov. 30, 2023 | Nov. 30, 2022 | May 31, 2023
Contract assets and liabilities |  |  |  |  |
Contract assets - current | $ 99.3 |  | $ 99.3 |  | $ 86.9
Contract assets - non-current | 33.1 |  | 33.1 |  | 27.5
Contract liabilities: |  |  |  |  |
Deferred revenue - current | (16.6) |  | (16.6) |  | (19.7)
Deferred revenue on long-term contracts | (9.8) |  | (9.8) |  | (12.7)
Net contract assets | 106.0 |  | 106.0 |  | $ 82.0
Change in contract assets - current |  |  | 12.4 |  |
Change in contract assets - non-current |  |  | 5.6 |  |
Change in contract liabilities - current |  |  | 3.1 |  |
Change in contract liabilities - non-current |  |  | 2.9 |  |
Change in net contract assets |  |  | 24.0 |  |
Change in contract assets and revenue |  |  | 12.4 | $ 9.3 |
Changes in deferred revenue |  |  |  |  |
Deferred revenue at beginning of period | (37.1) | $ (33.5) | (32.4) | (30.6) |
Revenue deferred | (69.4) | (69.6) | (136.2) | (127.1) |
Revenue recognized | 81.3 | 66.6 | 142.4 | 120.1 |
Other | (1.2) | 7.7 | (0.2) | 8.8 |
Deferred revenue at end of period | (26.4) | $ (28.8) | (26.4) | $ (28.8) |
Remaining Performance Obligations |  |  |  |  |
Remaining performance obligation | $ 720.0 |  | $ 720.0 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-03-01 |  |  |  |  |
Remaining Performance Obligations |  |  |  |  |
Remaining performance obligation (as a percent) | 55.00% |  | 55.00% |  |
Expected timing of satisfaction of remaining performance obligation | 12 months |  | 12 months |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-03-01 |  |  |  |  |
Remaining Performance Obligations |  |  |  |  |
Remaining performance obligation (as a percent) | 50.00% |  | 50.00% |  |
Expected timing of satisfaction of remaining performance obligation | 3 years |  | 3 years |  |
PBH contracts |  |  |  |  |
Contract liabilities: |  |  |  |  |
Contract Charges on non-achievement of minimum volume guarantees |  |  | $ 8.1 |  |
Commercial power by hour, contract, amount derecognized from remaining loss reserves | $ 2.0 |  |  |  |
PBH contracts | Accrued liabilities |  |  |  |  |
Contract liabilities: |  |  |  |  |
PBH forward loss reserve | $ 3.1 |  | $ 3.1 |  |

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