SEGMENT INFORMATION - Reconciliation of Operating Segment Income (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 26, 2026 |
Mar. 27, 2026 |
Dec. 26, 2025 |
Jun. 27, 2025 |
Jun. 26, 2026 |
Jun. 27, 2025 |
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| Segment Reporting [Line Items] | ||||||
| Unallocated expenses | $ (12,812) | $ (12,045) | $ (39,556) | $ (31,459) | ||
| Depreciation and amortization | (23,185) | (29,033) | (92,643) | (87,603) | ||
| Interest expense, net | (6,948) | (8,873) | (20,832) | (25,343) | ||
| Restructuring charges | (2,932) | $ (4,128) | $ (1,527) | (602) | (8,587) | (1,519) |
| Transaction costs | (9,825) | (43) | (20,116) | (250) | ||
| Loss on assets held for sale | 0 | 195 | (25,664) | (154) | ||
| Gain (loss) on disposition of business | (12,653) | 0 | (10,378) | (6,101) | ||
| Asset impairment charges | 0 | 0 | (11,553) | (127,733) | ||
| Stock-based compensation | (7,672) | (7,246) | (24,539) | (21,056) | ||
| Litigation settlement expense | (50,000) | 0 | (186,500) | 0 | ||
| Other | 3,000 | 771 | (2,833) | 1,458 | ||
| Income (loss) before income taxes | (5,559) | 55,090 | (148,791) | 47,178 | ||
| Operating Segments | ||||||
| Segment Reporting [Line Items] | ||||||
| Adjusted EBITDA | 117,468 | 111,966 | 294,410 | 346,938 | ||
| Operating Segments | Electrical | ||||||
| Segment Reporting [Line Items] | ||||||
| Adjusted EBITDA | 89,330 | 81,235 | 218,782 | 264,564 | ||
| Operating Segments | Safety & Infrastructure | ||||||
| Segment Reporting [Line Items] | ||||||
| Adjusted EBITDA | $ 28,138 | $ 30,731 | $ 75,628 | $ 82,374 | ||
| X | ||||||||||
- Definition Gain (Loss) on Assets Held for Sale No definition available.
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- Definition Income (Loss) From Continuing Operations, Adjusted Earnings Before Interest, Taxes, Depreciation And Amortization (EBITDA) No definition available.
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- Definition Selling, General And Administrative Expense, Unallocated No definition available.
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- Definition Transaction Costs No definition available.
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of impairment loss for asset. Includes, but is not limited to, tangible and intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of interest income (expense) classified as nonoperating. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. No definition available.
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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