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Accounts Receivable (Tables)
 3 Months Ended
Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]  
Schedule of Accounts Receivable
Net accounts receivable consisted of the following as of March 31, 2023 and December 31, 2022 (in thousands):
 
March 31,
2023		December 31,
2022
Trade accounts receivable$516,398 $490,162 
Unbilled accounts receivable194,976 194,961 
Gross accounts receivable711,374 685,123 
Allowances for current expected credit losses and other reserves(5,557)(5,917)
Accounts receivable, net$705,817 $679,206 
Schedule of Activity in the Accounts Receivable Reserves
A summary of activity in the accounts receivable allowance for current expected credit losses and other reserves for the three months ended March 31, 2023 and 2022 was as follows (in thousands):

March 31,
2023		March 31,
2022
Beginning balance$5,917 $1,397 
Charges to income from operations1,397 1,951 
Collections from customers previously reserved and other(1,757)(69)
Ending balance$5,557 $3,279