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RELATED-PARTY TRANSACTIONS - Investment in Privately-held Companies (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Oct. 30, 2013 | Dec. 29, 2023 | Oct. 03, 2025 | Sep. 27, 2024 | Sep. 29, 2023 | Jan. 31, 2024
Related Party Transaction |  |  |  |  |  |
Income (loss) from equity investments |  |  | $ (2,300,000) | $ (1,000,000.0) | $ (1,400,000) |
Impairment of equity method investment |  |  | 0 | 0 | 16,400,000 |
Accounts payable |  |  | 69,900,000 | 59,100,000 |  |
Prepaid expenses and other current assets |  |  | 30,700,000 | 26,900,000 |  |
MeVis Breastcare |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Business Combination, Bargain Purchase, Gain, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Other expense, net |  |  |  |
Purchases | Dpi X LLC |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  | $ 19,800,000 | 18,000,000.0 | 18,700,000 |
Equity Method Investee |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Percentage of manufacturing capacity | 50.00% |  |  |  |  |
dpiX Holding | Equity Method Investee |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Ownership interest (as a percent) |  |  | 40.00% |  |  |
Income (loss) from equity investments |  |  | $ (2,300,000) | (1,000,000.0) | (200,000) |
Equity method investments |  |  | 22,500,000 | 24,800,000 |  |
Accounts payable |  |  | $ 1,900,000 | 3,000,000.0 |  |
Percentage of fixed costs |  |  | 50.00% |  |  |
dpiX Holding | Equity Method Investee | Fixed Cost Commitments |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Related party transaction expected fixed cost |  |  | $ 3,400,000 |  |  | $ 13,700,000
Dpi X LLC | dpiX Holding | Equity Method Investee |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Ownership interest (as a percent) |  |  | 100.00% |  |  |
VEC Imaging GmbH & Co. KG | Equity Method Investee |  |  |  |  |  |
Related Party Transaction |  |  |  |  |  |
Income (loss) from equity investments |  |  | $ 0.0 | (100,000) | $ (400,000) |
Equity method investments |  |  | 2,000,000.0 | 2,000,000.0 |  |
Prepaid expenses and other current assets |  |  | $ 800,000 | $ 700,000 |  |

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