Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable at December 31 consisted of the following (in thousands):

	2021		2020
Trade accounts receivable	$	185,745	$	174,604
Costs in excess of billings	54,437		26,915
Total accounts receivables	240,182		201,519
Less allowance for doubtful accounts	(3,738)		(3,529)
Accounts receivable, net	$	236,444	$	197,990