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Revenues - Revenues Disaggregated by Significant Customer (Details) - Customer concentration risk | 12 Months Ended
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Dec. 29, 2023 | Dec. 30, 2022 | Dec. 31, 2021
Affiliates of AmerisourceBergen Corporation | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 17.00% | 18.00% | 14.00%
Affiliates of AmerisourceBergen Corporation | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 17.00% | 18.00% |
Affiliates of McKesson Corporation | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 17.00% | 17.00% | 14.00%
Affiliates of McKesson Corporation | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 21.00% | 22.00% |
Affiliates of CVS Health Corporation | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 17.00% | 17.00% | 14.00%
Affiliates of CVS Health Corporation | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 20.00% | 18.00% |
Accredo Health, Incorporated | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 12.00% | 10.00% | 9.00%
Affiliates of Optum Specialty Pharmacy | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 10.00% | 10.00% | 8.00%
Ipsen Pharma SAS | Sales revenue, net |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 8.00% | 10.00% | 21.00%
Ipsen Pharma SAS | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 19.00% | 20.00% |
Cardinal Health, Inc. | Accounts Receivable |  |  |
Concentration Risk [Line Items] |  |  |
Percent of total revenues | 11.00% | 11.00% |

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