Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Revenue disaggregated by customer profile is as follows:

	Three Months Ended				Six Months Ended
	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
	(in thousands)				(in thousands)
Top client	$	74,932	$	89,565	$	156,199	$	189,559
Clients 2-5	179,018		166,772		381,996		336,285
Clients 6-10	86,449		87,725		160,800		166,499
Clients 11-25	101,417		139,086		231,501		274,748
Other	178,412		211,989		404,834		402,898
Total	$	620,228	$	695,137	$	1,335,330	$	1,369,989