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Deferred Revenue and Other Contract Liabilities - Deferred Revenue and Other Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Jun. 27, 2020	Dec. 28, 2019
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Business Combination, Deferred Revenue			$ 10,064
Deferred revenue	$ 30,809		30,809	$ 13,998
Accrued rebates and allowances	9,806		9,806	8,436
Accrued customer reimbursements	4,571		4,571	5,739
Total deferred revenue and other contract liabilities	45,186		45,186	28,173
Less: Non-current portion of deferred revenue	(3,727)		(3,727)	(2,234)
Deferred revenue and other contract liabilities - current	41,459		$ 41,459	$ 25,939
Connected Care Acquisition [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Business Combination, Deferred Revenue		$ 9,500
TNI Medical AG Acquisition [Member]
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Business Combination, Deferred Revenue	$ 600

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