Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

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

	Three Months Ended March 31,
	2020						2019
	Over Time		Point In Time		Total Revenues		Over Time		Point In Time		Total Revenues
Time and materials contracts	$	99,991	$	—	$	99,991	$	88,378	$	—	$	88,378
Fixed fee percent complete contracts	11,621		—		11,621		12,458		—		12,458
Fixed fee contracts	25,028		—		25,028		24,180		—		24,180
Reimbursable expenses	4,394		—		4,394		3,914		—		3,914
Total professional services fees	141,034		—		141,034		128,930		—		128,930
Other services revenue*	3,630		738		4,368		3,345		591		3,936
Total services	144,664		738		145,402		132,275		591		132,866
Software and hardware	—		160		160		—		949		949
Total revenues	$	144,664	$	898	$	145,562	$	132,275	$	1,540	$	133,815

* 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,
	2020		2019
United States	$	142,570	$	130,446
Canada	1,079		581
Other countries	1,913		2,788
Total revenues	$	145,562	$	133,815