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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 27, 2025 USD ($) | Sep. 27, 2025 USD ($) | Jun. 28, 2025 USD ($) | Mar. 29, 2025 USD ($) | Dec. 28, 2024 USD ($) | Sep. 28, 2024 USD ($) | Jun. 29, 2024 USD ($) | Mar. 30, 2024 USD ($) | Dec. 27, 2025 USD ($) segment | Dec. 28, 2024 USD ($) | Dec. 30, 2023 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of primary segments the Company operates | segment |  |  |  |  |  |  |  |  | 3 |  |
Net sales | $ 1,329,823 | $ 1,559,627 | $ 1,835,374 | $ 1,595,519 | $ 1,462,001 | $ 1,649,383 | $ 1,901,959 | $ 1,638,966 | $ 6,320,343 | $ 6,652,309 | $ 7,218,384
Change % in net sales |  |  |  |  |  |  |  |  | (5.00%) | (7.80%) |
Point in Time |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 6,177,299 | $ 6,489,190 | 7,069,690
Change % in net sales |  |  |  |  |  |  |  |  | (4.80%) | (8.20%) |
Over Time |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 143,044 | $ 163,119 | $ 148,694
Change % in net sales |  |  |  |  |  |  |  |  | (12.30%) | 9.70% |
Minimum |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of months to complete contract projects | 6 months |  |  |  |  |  |  |  | 6 months |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of months to complete contract projects | 18 months |  |  |  |  |  |  |  | 18 months |  |

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