Revenue (Tables)

6 Months Ended

Jun. 30, 2020

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


	Three Months Ended June 30,
	2020										2019
	Over Time		Point In Time		Total Revenues		Over Time		Point In Time		Total Revenues
Time and materials contracts	$	102,294	$	—	$	102,294	$	96,084	$	—	$	96,084
Fixed fee percent complete contracts	14,015		—		14,015		10,414		—		10,414
Fixed fee contracts	24,260		—		24,260		25,955		—		25,955
Reimbursable expenses	1,530		—		1,530		4,390		—		4,390
Total professional services fees	142,099		—		142,099		136,843		—		136,843
Other services revenue*	3,316		421		3,737		3,524		867		4,391
Total services	145,415		421		145,836		140,367		867		141,234
Software and hardware	—		503		503		—		635		635
Total revenues	$	145,415	$	924	$	146,339	$	140,367	$	1,502	$	141,869

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


	Six Months Ended June 30,
	2020										2019
	Over Time		Point In Time		Total Revenues		Over Time		Point In Time		Total Revenues
Time and materials contracts	$	202,285	$	—	$	202,285	$	184,462	$	—	$	184,462
Fixed fee percent complete contracts	25,636		—		25,636		22,872		—		22,872
Fixed fee contracts	49,288		—		49,288		50,135		—		50,135
Reimbursable expenses	5,924		—		5,924		8,304		—		8,304
Total professional services fees	283,133		—		283,133		265,773		—		265,773
Other services revenue*	6,946		1,159		8,105		6,869		1,458		8,327
Total services	290,079		1,159		291,238		272,642		1,458		274,100
Software and hardware	—		663		663		—		1,584		1,584
Total revenues	$	290,079	$	1,822	$	291,901	$	272,642	$	3,042	$	275,684

* 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):