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Deferred Revenue and Other Contract Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Sep. 26, 2020	Dec. 28, 2019
Revenue Recognition, Multiple-deliverable Arrangements [Line Items]
Business Combination, Deferred Revenue			$ 10,064
Deferred revenue			31,588	$ 13,998
Accrued rebates and allowances			11,389	8,436
Accrued customer reimbursements			5,294	5,739
Total deferred revenue and other contract liabilities			48,271	28,173
Less: Non-current portion of deferred revenue			(3,729)	(2,234)
Deferred revenue and other contract liabilities - current			$ 44,542	$ 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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