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Revenues - Revenues Disaggregated by Significant Customer (Details) - Customer concentration risk	12 Months Ended
	Dec. 31, 2021	Jan. 01, 2021	Jan. 03, 2020
Ipsen Pharma SAS | Sales revenue, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	21.00%	15.00%	16.00%
Ipsen Pharma SAS | Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	50.00%	23.00%
Affiliates of CVS Health Corporation | Sales revenue, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	14.00%	14.00%	15.00%
Affiliates of CVS Health Corporation | Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	9.00%	11.00%
Affiliates of McKesson Corporation | Sales revenue, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	14.00%	12.00%	12.00%
Affiliates of McKesson Corporation | Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	10.00%	12.00%
Affiliates of AmerisourceBergen Corporation | Sales revenue, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	14.00%	11.00%	11.00%
Affiliates of AmerisourceBergen Corporation | Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	11.00%	11.00%
Affiliates of Optum Specialty Pharmacy | Sales revenue, net
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	8.00%	11.00%	13.00%
Takeda Pharmaceutical Company Limited | Accounts Receivable
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percent of total revenues	2.00%	10.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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