Accounts Receivable, Net (Tables)

3 Months Ended

Mar. 31, 2022

Receivables [Abstract]

Schedule of Accounts Receivable, Net

Accounts receivable, net, at March 31, 2022 and December 31, 2021 was as follows (in thousands):

	March 31, 2022		December 31, 2021
Trade accounts receivable	$	226,704	$	190,710
Unbilled revenue, at net realizable value	155,176		67,616
Total accounts receivable	381,880		258,326
Allowance for doubtful accounts	(16,122)		(16,158)
Accounts receivable, net	$	365,758	$	242,168

Schedule of Changes in the Allowance for Doubtful Accounts on Accounts Receivable

Changes to the allowance for doubtful accounts for the three months ended March 31, 2022 and twelve months ended December 31, 2021 are as follows (in thousands):

	March 31, 2022		December 31, 2021
Balance at beginning of period	$	(16,158)	$	(14,894)
Provision	(1,270)		(9,422)
Charge-offs, net of recoveries	1,306		8,158
Allowance for doubtful accounts	$	(16,122)	$	(16,158)