Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Schedule of Contract Liability Activity (Details)

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Commitments and Contingencies - Schedule of Contract Liability Activity (Details)
$ in Thousands
9 Months Ended
Sep. 26, 2020
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
Beginning balance, December 28, 2019 $ 515
Accrued 610
Settled (272)
Ending balance, September 26, 2020 $ 853