REVENUE (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of revenue

The components of revenue were as follows for the three months ended March 31:

(in thousands)	2020		2019
Service revenue	$	113,176	$	164,999
Reimbursable expenses	7,845		4,496
Non-controlling interests	423		440
Total	$	121,444	$	169,935

Disaggregation of revenue

Disaggregation of total revenues by major source is as follows:

(in thousands)	Revenue recognized when services are performed or assets are sold		Revenue related to technology platforms and professional services		Reimbursable expenses revenue		Total revenue
Three months ended March 31, 2020	$	108,008	$	5,591	$	7,845	$	121,444
Three months ended March 31, 2019	147,755		17,684		4,496		169,935