Accounts Receivable

6 Months Ended

Jun. 30, 2023

Receivables [Abstract]

Accounts Receivable

3. Accounts Receivable

Accounts receivable consisted of the following:

(in thousands)	June 30, 2023			December 31, 2022
Accounts receivable	$	130,919		$	87,306
Allowance for doubtful accounts		(4,256	)		(4,220	)
Total accounts receivable, net	$	126,663		$	83,086

Balances billed but not paid by customers under retainage provisions in contracts within the Condensed Consolidated Balance Sheets amounted to approximately $1.4 million and $1.6 million at June 30, 2023 and December 31, 2022, respectively. Retainage receivables on contracts in progress are generally collected within a year or two subsequent to contract completion, and are recorded in either "Accounts receivable, net" or "Deferred charges and other assets" within the Condensed Consolidated Balance Sheets depending on timing of expected collection.

Provision for credit losses was $(0.1) million and $0.4 million for the three months ended June 30, 2023 and 2022, respectively, and zero and $0.4 million for the six months ended June 30, 2023 and 2022, respectively.