Revenue

9 Months Ended

Sep. 25, 2021

Revenue From Contract With Customer [Abstract]

Revenue

NOTE 9. Revenue

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

	Three Months Ended				Nine Months Ended
	September 25,		September 26,		September 25,		September 26,
	2021		2020		2021		2020
Point-in-time	$	190,014	$	122,015	$	533,308	$	387,556
Over-time		10,575		4,477		29,947		13,812
Total revenue	$	200,589	$	126,492	$	563,255	$	401,368

See Note 15 for additional discussion of the Company’s disaggregated revenue in detail.

Contract Liabilities

The Company records contract liabilities when the customer has been billed in advance of the Company completing its performance obligations. These amounts are recorded as deferred revenue in the Condensed Consolidated Balance Sheets.  

Changes in deferred revenue were as follows:

	Three Months Ended						Nine Months Ended
	September 25,			September 26,			September 25,			September 26,
	2021			2020			2021			2020
Balance, beginning of the period	$	22,906		$	17,894		$	15,626		$	15,093
Deferred revenue assumed in acquisition		—			—			386			—
Deferral of revenue		17,317			10,137			51,666			33,389
Recognition of deferred revenue		(12,364	)		(10,396	)		(39,819	)		(30,847	)
Balance, end of the period	$	27,859		$	17,635		$	27,859		$	17,635