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Revenues - Revenues Disaggregated by Concentration Risks (Details) - Customer Concentration Risk	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023	Dec. 29, 2023
Ipsen Pharma SAS | Revenue
Concentration Risk [Line Items]
Percent of total revenues	30.00%	8.00%	21.00%	8.00%
Ipsen Pharma SAS | Accounts Receivable
Concentration Risk [Line Items]
Percent of total revenues			50.00%		19.00%
Affiliates of Cencora, Inc. (formerly AmerisourceBergen Corporation) | Revenue
Concentration Risk [Line Items]
Percent of total revenues	14.00%	16.00%	16.00%	16.00%
Affiliates of Cencora, Inc. (formerly AmerisourceBergen Corporation) | Accounts Receivable
Concentration Risk [Line Items]
Percent of total revenues			14.00%		17.00%
Affiliates of McKesson Corporation | Revenue
Concentration Risk [Line Items]
Percent of total revenues	14.00%	16.00%	15.00%	16.00%
Affiliates of McKesson Corporation | Accounts Receivable
Concentration Risk [Line Items]
Percent of total revenues			13.00%		21.00%
Affiliates of CVS Health Corporation | Revenue
Concentration Risk [Line Items]
Percent of total revenues	13.00%	17.00%	15.00%	17.00%
Affiliates of CVS Health Corporation | Accounts Receivable
Concentration Risk [Line Items]
Percent of total revenues			9.00%		20.00%
Accredo Health, Incorporated | Revenue
Concentration Risk [Line Items]
Percent of total revenues	9.00%	12.00%	10.00%	12.00%
Cardinal Health, Inc. | Accounts Receivable
Concentration Risk [Line Items]
Percent of total revenues			7.00%		11.00%

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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.

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