Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Summary of Total Receivables, Net

Total receivables, net is comprised of the following (in thousands):

	June 30, 2020		December 31, 2019
Billed receivables	$	183,408	$	213,654
Allowance for doubtful accounts	(3,661)		(5,149)
Billed receivables, net	179,747		208,505
Accrued receivables	374,845		399,302
Significant financing component	(29,969)		(35,569)
Total accrued receivables, net	344,876		363,733
Less: current accrued receivables	155,320		161,714
Less: current significant financing component	(10,408)		(11,022)
Total long-term accrued receivables, net	199,964		213,041
Total receivables, net	$	524,623	$	572,238

Summary of Changes in Deferred Revenue

Changes in deferred revenue were as follows (in thousands):

Balance, December 31, 2019	$	118,939
Deferral of revenue	80,744
Recognition of deferred revenue	(60,410)
Foreign currency translation	(1,852)
Balance, June 30, 2020	$	137,421