Revenue (Tables)

3 Months Ended

Mar. 31, 2018

During the three months ended March 31, 2018, $2.8 million was recognized in revenue that was included in the deferred revenue balance at the beginning of the period. The changes in deferred revenue for the three months ended March 31, 2018 are as follows (in thousands):

Balance at December 31, 2017	$	3,278
Impact of ASC Topic 606 adoption (offset to Accounts Receivable)		2,806
Opening balance at January 1, 2018		6,084
Deferral of revenue		3,328
Recognition of deferred revenue		(4,124)
Other		(398)
Balance as of March 31, 2018	$	4,890

Disaggregation of Revenue

The following table presents revenue disaggregated by revenue source and pattern of revenue recognition (in thousands):

	Three Months Ended March 31, 2018
	Over Time		Point In Time		Total Revenues
Time and materials contracts	$	82,149	$	-	$	82,149
Fixed fee percent complete contracts		9,112		-		9,112
Fixed fee contracts		21,222		-		21,222
Reimbursable expenses		3,030		-		3,030
Total professional services fees		115,513		-		115,513
Other services revenue*		3,865		818		4,683
Total services		119,378		818		120,196
Software and hardware		-		746		746
Total revenues	$	119,378	$	1,564	$	120,942

Other services revenue primarily consists of hosting fees, maintenance, training, internally developed SaaS and partner referral fees.

The following table presents revenue disaggregated by geographic area, as determined by the billing address of customers (in thousands):

	Three Months Ended March 31, 2018
United States	$	117,529
Canada		1,371
Other countries		2,042
Total revenues	$	120,942