Accounts receivable, less allowance for doubtful accounts, reflects the net realizable value of receivables and approximates fair value. Unbilled revenue is recorded at estimated net realizable value. Assessing the collectability of the receivables (billed and unbilled) requires management judgment based on a combination of factors, including but not limited to, an evaluation of our historical incurred loss experience, credit-worthiness of our clients, age of the trade receivable balance, current economic conditions that may affect a client’s ability to pay, and reasonable and supportable forecasts. Receivables are charged-off against the allowance when the balance is deemed uncollectible.


	June 30, 2025		December 31, 2024
Trade accounts receivable	$	502,115	$	416,211
Unbilled revenue, at net realizable value	223,856		150,362
Total accounts receivable	725,971		566,573
Allowance for doubtful accounts	(49,917)		(31,715)
Accounts receivable, net	$	676,054	$	534,858

Changes to the allowance for doubtful accounts for the six months ended June 30, 2025 and year ended December 31, 2024 were as follows (in thousands):


	June 30, 2025		December 31, 2024
Balance at beginning of period	$	(31,715)	$	(25,598)
Provision	(19,323)		(19,979)
Charge-offs, net of recoveries	1,121		13,862
Allowance for doubtful accounts	$	(49,917)	$	(31,715)