Revenue Recognition

9 Months Ended

Sep. 29, 2019

Revenue from Contract with Customer [Abstract]

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



	Three-months Ended				Nine-months Ended
	September 29, 2019		September 30, 2018		September 29, 2019		September 30, 2018
Americas	$	65,253	$	57,020	$	208,909	$	187,991
Europe	64,209		118,810		182,747		245,437
Greater China	27,854		31,068		86,446		99,402
Other Asia	26,009		25,323		77,754		80,222
	$	183,325	$	232,221	$	555,856	$	613,052

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



	Three-months Ended				Nine-months Ended
	September 29, 2019		September 30, 2018		September 29, 2019		September 30, 2018
Standard products and services	$	139,887	$	150,993	$	473,610	$	493,019
Application-specific customer solutions	43,438		81,228		82,246		120,033
	$	183,325	$	232,221	$	555,856	$	613,052

Costs to Fulfill a Contract

Costs to fulfill a contract are included in "Prepaid expenses and other current assets" on the Consolidated Balance Sheet and amounted to $4,792,000 and $3,514,000 as of September 29, 2019 and December 31, 2018, respectively.

Accounts Receivable, Contract Assets, and Contract Liabilities

Accounts receivable represent amounts billed and currently due from customers which are reported at their net estimated realizable value. The Company maintains reserves against its accounts receivable for potential credit losses. Credit losses recognized on accounts receivable were immaterial for the three-month and nine-month periods ended September 29, 2019 and September 30, 2018, respectively. Contract assets consist of unbilled revenue which arises when revenue is recognized in advance of billing for certain application-specific customer solutions contracts. Contract liabilities consist of deferred revenue and customer deposits which arise when amounts are billed to or collected from customers in advance of revenue recognition.

The following table summarizes the deferred revenue and customer deposits activity for the nine-month period ended September 29, 2019 (in thousands):



Balance as of December 31, 2018	$	9,845
Increases to deferred revenue and customer deposits	37,351
Recognition of revenue	(36,517		)
Foreign exchange rate changes	(248		)
Balance as of September 29, 2019	$	10,431

As a practical expedient, the Company has elected not to disclose the aggregate amount of the transaction price allocated to unsatisfied performance obligations, as our contracts have an original expected duration of less than one year.