Revenue (Tables)

3 Months Ended

Mar. 28, 2020

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 28,		March 31,
	2020		2019
Point-in-time	$	133,745	$	56,591
Over-time		6,183		4,301
Total revenue	$	139,928	$	60,892

Schedule of Changes in Deferred Revenue

Changes in deferred revenue were as follows:

	Three Months Ended
	March 28,			March 31,
	2020			2019
Balance, beginning of the period	$	15,093		$	8,080
Deferral of revenue		14,434			1,805
Recognition of deferred revenue		(11,495	)		(1,198	)
Balance, end of the period	$	18,032		$	8,687