Accounts Receivable And Contracts In Progress (Tables)

12 Months Ended

Dec. 31, 2017

Receivables [Abstract]

Schedule Of Accounts Receivable

Accounts receivable at December 31, 2017 and 2016 are as follows:

		2017			2016
Completed contracts	$	15,974		$	18,727
Contracts in progress		42,759			53,137
Retainage		21,866			21,399
		80,599			93,263
Allowance for doubtful accounts		(591	)		(747	)
Total accounts receivable—net	$	80,008		$	92,516
Current portion of accounts receivable—net	$	75,533		$	88,091
Long-term accounts receivable and retainage		4,475			4,425
Total accounts receivable—net	$	80,008		$	92,516

Components Of Contracts In Progress

The components of contracts in progress at December 31, 2017 and 2016 are as follows:

		2017			2016
Costs and earnings in excess of billings:
Costs and earnings for contracts in progress	$	558,557		$	587,371
Amounts billed		(490,732	)		(511,548	)
Costs and earnings in excess of billings for contracts in progress		67,825			75,823
Costs and earnings in excess of billings for completed contracts		22,963			19,189
Total contract revenues in excess of billings	$	90,788		$	95,012
Billings in excess of costs and earnings:
Amounts billed	$	(325,350	)	$	(268,754	)
Costs and earnings for contracts in progress		321,735			263,613
Total billings in excess of contract revenues	$	(3,615	)	$	(5,141	)