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Accounts Receivable
3 Months Ended
Mar. 31, 2024
Receivables [Abstract]  
Accounts Receivable Accounts Receivable
Accounts receivable includes the following amounts at March 31, 2024 and December 31, 2023:
March 31,December 31,
(in thousands)20242023
Trade accounts receivable$29,016 $30,111 
Unbilled receivables7,179 5,975 
Total receivables36,195 36,086 
Allowance for credit losses(53)(59)
Reserve for estimated credits(425)(528)
$35,717 $35,499