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Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2021
Receivables [Abstract]  
Summary of Accounts Receivable

 

(table only in thousands)

 

September 30, 2021

 

 

December 31, 2020

 

Contract receivables

 

$

61,675

 

 

$

57,435

 

Trade receivables

 

 

11,752

 

 

 

8,721

 

Allowance for doubtful accounts

 

 

(3,403

)

 

 

(3,110

)

Total accounts receivable

 

$

70,024

 

 

$

63,046