Revenues and Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2021

Revenues And Accounts Receivable [Abstract]

Schedule of Contract Balances

The following table presents the Company’s contract balances:

	September 30,		December 31,
	2021		2020
Contract assets	$	46,270	$	38,576
Contract liabilities		8,037		6,114

Schedule of Accounts Receivable, Net

Accounts receivable, net consisted of the following:

	September 30,			December 31,
	2021			2020
Accounts receivable, invoiced	$	68,974		$	57,228
Accounts receivable, other		1,876			1,139
Allowance for doubtful accounts		(4,379	)		(4,265	)
Accounts receivable—net	$	66,471		$	54,102

Schedule of Allowance for Doubtful Accounts

The allowance for doubtful accounts consisted of the following:

	Beginning Balance		Bad Debt Expense		Charged to Allowance			Other(1)		Ending Balance
Nine months ended September 30, 2021	$	4,265	$	803	$	(1,229	)	$	540	$	4,379
Year ended December 31, 2020		1,327		4,532		(2,633	)		1,039		4,265

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(1) This amount consists of additions to the allowance due to business acquisitions.