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WARRANTY LIABILITY (Tables) | 12 Months Ended
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Sep. 30, 2025
Product Warranties Disclosures [Abstract] |
Schedule of Product Warranty Liability | Changes in Griffon’s warranty liability, included in Accrued liabilities, were as follows:
| Years Ended September 30,
| 2025 |  | 2024
Balance, beginning of period | $ | 13,050 |  |  | $ | 20,781 |
Warranties issued and changes in estimated pre-existing warranties | 19,300 |  |  | 23,253 |
Actual warranty costs incurred | (22,207) |  |  | (30,984) |
Balance, end of period | $ | 10,143 |  |  | $ | 13,050 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-8 + Details
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