RECEIVABLES, CONTRACT ASSETS, AND DEFERRED REVENUE (Tables)

9 Months Ended

Sep. 30, 2020

Receivables [Abstract]

Summary of receivable

Receivables

(in thousands)	September 30, 2020		December 31, 2019
Accounts receivable	$	137,953	$	199,720
Unbilled receivables	208,823		180,219
Long-term unbilled receivables	108,456		121,736
	$	455,232	$	501,675

Summary of unbilled receivables

Unbilled receivables are expected to be billed in the future as follows:

(Dollars in thousands)	September 30, 2020
1 year or less	$	208,823	66	%
1-2 years	91,325		29	%
2-5 years	17,131		5	%
	$	317,279	100	%

Summary of unbilled receivables based upon contract effective date

Unbilled receivables based upon contract effective date:

(Dollars in thousands)	September 30, 2020
2020	$	105,380	33	%
2019	99,875		32	%
2018	39,281		12	%
2017	37,824		12	%
2016 and prior	34,919		11	%
	$	317,279	100	%

Schedules of concentration of risk, by risk factor

Major clients

Clients accounting for 10% or more of the Company’s receivables:

	September 30, 2020		December 31, 2019
Client A	11	%	*

* Client accounted for less than 10% of total receivables.

Summary of contract assets and deferred revenue

Contract assets and deferred revenue

(in thousands)	September 30, 2020		December 31, 2019
Contract assets (1)	$	8,104	$	5,558
Long-term contract assets (2)	5,579		5,420
	13,683		10,978
Deferred revenue	181,680		190,080
Long-term deferred revenue (3)	6,673		5,407
	$	188,353	$	195,487

(1) Included in other current assets. (2) Included in other long-term assets. (3) Included in other long-term liabilities.