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v3.25.1

Debt and Lines of Credit (Details) - USD ($) | Nov. 25, 2024 | Jun. 30, 2022 | Nov. 10, 2020 | Feb. 28, 2025 | Aug. 31, 2024
--- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |
Current debt |  |  |  | $ 100,000,000.0 | $ 0
2.150% Senior Unsecured Notes Due December 2030 | Unsecured Debt | Acuity Brands Lighting, Inc. |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Aggregate principal amount |  |  | $ 500,000,000.0 |  |
Interest rate (as percent) |  |  | 2.15% |  |
Debt issuance price as a percentage of face value (as percent) |  |  | 99.737% |  |
Deferred issuance costs |  |  | $ 4,800,000 |  |
Term of instrument (in years) |  |  | 10 years |  |
Revolving Credit Facility | Line of Credit | Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Term of instrument (in years) |  | 5 years |  |  |
Executed revolving credit facility |  | $ 600,000,000.0 |  |  |
Line of credit facility, additional borrowing capacity |  | $ 400,000,000.0 |  |  |
Current debt |  |  |  | 0 | $ 0
Revolving Credit Facility | Letters of Credit | Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding letters of credit |  |  |  | 4,200,000 |
Term Loan Facility | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Executed revolving credit facility | $ 600,000,000.0 |  |  |  |
Current debt |  |  |  | 100,000,000.0 |
Debt, long-term and short-term, combined amount |  |  |  | $ 600,000,000.0 |
Debt instrument, repayment term (in years) |  |  |  | 1 year |
Term Loan Facility | Line of Credit | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fees rate | 0.075% |  |  |  |
Term Loan Facility | Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Applicable margins as determined by leverage ratio or ratings level | 0.875% |  |  |  |
Term Loan Facility | Line of Credit | Minimum | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Applicable margins as determined by leverage ratio or ratings level | 0.00% |  |  |  |
Term Loan Facility | Line of Credit | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Commitment fees rate | 0.175% |  |  |  |
Term Loan Facility | Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Applicable margins as determined by leverage ratio or ratings level | 1.375% |  |  |  |
Term Loan Facility | Line of Credit | Maximum | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Applicable margins as determined by leverage ratio or ratings level | 0.375% |  |  |  |
The Credit Agreement | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional borrowing capacity under revolving credit facility |  |  |  | $ 595,800,000 |

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