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Revenues - Revenues Disaggregated by Concentration Risks (Details) - Customer Concentration Risk | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 03, 2025 | Sep. 27, 2024 | Oct. 03, 2025 | Sep. 27, 2024 | Jan. 03, 2025
Affiliates of Cencora, Inc. | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues | 20.00% | 20.00% | 22.00% | 17.00% |
Affiliates of Cencora, Inc. | Accounts Receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues |  |  | 24.00% |  | 17.00%
Affiliates of McKesson Corporation | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues | 20.00% | 18.00% | 19.00% | 16.00% |
Affiliates of McKesson Corporation | Accounts Receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues |  |  | 26.00% |  | 23.00%
Affiliates of CVS Health Corporation | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues | 15.00% | 17.00% | 15.00% | 16.00% |
Affiliates of CVS Health Corporation | Accounts Receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues |  |  | 13.00% |  | 20.00%
Accredo Health, Incorporated | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues | 11.00% | 11.00% | 12.00% | 10.00% |
Affiliates of Optum Specialty Pharmacy | Revenue |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues | 9.00% | 10.00% | 9.00% | 9.00% |
Ipsen Pharma SAS | Accounts Receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues |  |  | 15.00% |  | 18.00%
Cardinal Health, Inc. | Accounts Receivable |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Percent of total revenues |  |  | 13.00% |  | 10.00%

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