Revenue (Tables)

3 Months Ended

Mar. 27, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table represents a disaggregation of revenue by timing of revenue:

	Three Months Ended
	March 27,		March 28,
	2021		2020
Point-in-time	$	161,161	$	133,745
Over-time		8,118		6,183
Total revenue	$	169,279	$	139,928

Schedule of Changes in Deferred Revenue

Changes in deferred revenue were as follows:

	Three Months Ended
	March 27,			March 28,
	2021			2020
Balance, beginning of the period	$	15,626		$	15,093
Deferred revenue assumed in acquisition		385			—
Deferral of revenue		19,232			14,434
Recognition of deferred revenue		(12,814	)		(11,495	)
Balance, end of the period	$	22,429		$	18,032