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Net revenues (Details) - Sales Revenue, Net - Customer Concentration Risk
3 Months Ended
Mar. 28, 2021
Hospitals And Healthcare Providers  
Concentration Risk [Line Items]  
Percentage of total revenue 88.00%
Other Medical Device Manufacturers  
Concentration Risk [Line Items]  
Percentage of total revenue 9.00%
Home Care Providers  
Concentration Risk [Line Items]  
Percentage of total revenue 3.00%