Revenue Recognition

3 Months Ended

Mar. 31, 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
	March 31, 2019		April 1, 2018
Americas	$	65,156	$	59,217
Europe	59,657		56,203
Greater China	22,810		27,159
Other Asia	25,861		26,988
	$	173,484	$	169,567

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



	Three-months Ended
	March 31, 2019		April 1, 2018
Standard products and services	$	161,052	$	158,399
Application-specific customer solutions	12,432		11,168
	$	173,484	$	169,567

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 $4,960,000 and $3,514,000 as of March 31, 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 periods ended March 31, 2019 and April 1, 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 three-month period ended March 31, 2019 (in thousands):



Balance as of December 31, 2018	$	9,845
Increases to deferred revenue and customer deposits	12,015
Recognition of revenue	(5,292		)
Foreign exchange rate changes	57
Balance as of March 31, 2019	$	16,625

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.