Net revenues (Details) - Sales Revenue, Net - Customer Concentration Risk	6 Months Ended
Jun. 28, 2020
Hospitals And Healthcare Providers
Concentration Risk [Line Items]
Percentage of total revenue	86.00%
Other Medical Device Manufacturers
Concentration Risk [Line Items]
Percentage of total revenue	11.00%
Home Care Providers
Concentration Risk [Line Items]
Percentage of total revenue	3.00%

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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