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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Feb. 28, 2025
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table summarizes the changes in the carrying amount of goodwill by segment during the periods presented (in millions):
| Acuity Brands Lighting |  | Acuity Intelligent Spaces |  | Total
Balance at August 31, 2024 | $ | 1,015.1 |  |  | $ | 83.6 |  |  | $ | 1,098.7 |
Provisional amounts from acquired business | — |  |  | 363.5 |  |  | 363.5 |
Foreign currency translation adjustments | (8.2) |  |  | (3.7) |  |  | (11.9) |
Balance at February 28, 2025 | $ | 1,006.9 |  |  | $ | 443.4 |  |  | $ | 1,450.3 |
| Acuity Brands Lighting |  | Acuity Intelligent Spaces |  | Total
Balance at August 31, 2023 | $ | 1,014.4 |  |  | $ | 83.5 |  |  | $ | 1,097.9 |
Foreign currency translation adjustments | (0.6) |  |  | (0.2) |  |  | (0.8) |
Balance at February 29, 2024 | $ | 1,013.8 |  |  | $ | 83.3 |  |  | $ | 1,097.1 |

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