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Accounts Receivable
 12 Months Ended
Dec. 31, 2022
Receivables [Abstract]  
Accounts Receivable ACCOUNTS RECEIVABLE, NET
Accounts receivable at December 31 consisted of the following (in thousands):
20222021
Trade accounts receivable$179,170 $185,745 
Costs in excess of billings41,732 54,437 
Total accounts receivables220,902 240,182 
Less allowance for doubtful accounts(3,746)(3,738)
Accounts receivable, net$217,156 $236,444 
Refer to Note 3 "Revenue" concerning the Company's costs in excess of billings.