RECEIVABLES

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

RECEIVABLES

4.           RECEIVABLES

Receivables primarily include amounts billed to customers, unbilled charges on long-term contracts consisting of amounts recognized as sales but not billed, and other receivables. Substantially all amounts of unbilled receivables are expected to be billed and collected within one year. An immaterial amount of unbilled receivables are subject to retainage provisions. The amount of claims and unapproved change orders within our receivables balances are immaterial.

The composition of receivables is as follows:

(In thousands)	March 31, 2018			December 31, 2017
Billed receivables:
Trade and other receivables	$	344,310		$	363,234
Less: Allowance for doubtful accounts	(7,725		)	(7,486		)
Net billed receivables	336,585			355,748
Unbilled receivables (Contract Assets):
Recoverable costs and estimated earnings not billed	202,893			160,727
Less: Progress payments applied	(20,694		)	(21,552		)
Net unbilled receivables	182,199			139,175
Receivables, net	$	518,784		$	494,923