Accounts Receivable

6 Months Ended

Jun. 30, 2022

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Accounts Receivable

Accounts Receivable

Net accounts receivable consisted of the following as of June 30, 2022 and December 31, 2021 (in thousands):

 

	June 30, 2022		December 31, 2021
Trade accounts receivable	$	479,071	$	501,959
Unbilled accounts receivable	191,366		175,364
Gross accounts receivable	670,437		677,323
Allowances for current expected credit losses and other reserves	(2,012)		(1,397)
Accounts receivable, net	$	668,425	$	675,926

A summary of activity in the accounts receivable allowance for current expected credit losses and other reserves for the six months ended June 30, 2022 and 2021 is as follows (in thousands):

	June 30, 2022		June 30, 2021
Beginning balance	$	1,397	$	1,822
Charges to income from operations	2,968		2,399
Collections from customers previously reserved and other	(2,353)		(2,274)
Ending balance	$	2,012	$	1,947

Charges to income from operations primarily represents charges to provision for doubtful accounts for increases in the allowance for current expected credit losses.