Revenue Recognition (Tables)

3 Months Ended

Apr. 04, 2021

Revenue from Contract with Customer [Abstract]

Revenue from External Customers by Geographic Areas

The following table summarizes disaggregated revenue information by geographic area based upon the customer's country of domicile (in thousands):

	Three-months Ended
	April 4, 2021		March 29, 2020
Americas	$	107,836	$	60,247
Europe	57,048		48,582
Greater China	38,238		26,403
Other Asia	35,905		32,003
	$	239,027	$	167,235

Revenue from External Customers by Products and Services

The following table summarizes disaggregated revenue information by revenue type (in thousands):

	Three-months Ended
	April 4, 2021		March 29, 2020
Standard products and services	$	222,326	$	152,854
Application-specific customer solutions	16,701		14,381
	$	239,027	$	167,235

Schedule of Allowance for Credit Loss Activity

The following table summarizes the allowance for credit losses activity for the three-month period ended April 4, 2021 (in thousands):

Balance as of December 31, 2020	$	831
Increases to the allowance for credit losses	—
Write-offs	(33)
Foreign exchange rate changes	—
Balance as of April 4, 2021	$	798

Deferred Revenue, by Arrangement, Disclosure

The following table summarizes the deferred revenue and customer deposits activity for the three-month period ended April 4, 2021 (in thousands):

Balance as of December 31, 2020	$	21,274
Deferral of revenue billed in the current period, net of recognition	38,380
Recognition of revenue deferred in prior periods	(7,757)
Foreign exchange rate changes	(237)
Balance as of April 4, 2021	$	51,660