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Revenue (Tables)

6 Months Ended

Jun. 30, 2018

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, 2018			June 30, 2017				June 30, 2018			June 30, 2017
	(in thousands)							(in thousands)
Top client	$	90,526		$	86,239			$	156,344		$	190,922
Clients 2-5	168,305			92,852				336,773			183,163
Clients 6-10	104,301			52,853				221,366			106,283
Clients 11-25	125,758			79,633				246,065			149,008
Other	152,720			119,446				301,187			233,601
Total	$	641,610		$	431,023			$	1,261,735		$	862,977

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

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- References

No definition available.

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