Accounts Receivable, Net (Tables)

9 Months Ended

Sep. 30, 2016

Accounts receivable, net consists of the following:



	September 30, 2016			December 31, 2015
In thousands
Trade receivables	$	152,808		$	144,616
U.S. Government contracts:
Billed	28,068			20,289
Costs and accrued profit – not billed	841			4,248
Commercial and other government contracts:
Billed	54,723			68,066
Costs and accrued profit – not billed	15,254			3,872
Less allowance for doubtful accounts	(3,220		)	(2,989		)
Accounts receivable, net	$	248,474		$	238,102

Accounts Receivable due to contract changes, negotiated settlements and claims for unanticipated cost

Accounts receivable, net includes amounts for matters such as contract changes, negotiated settlements and claims for unanticipated contract costs. These amounts are as follows:



	September 30, 2016		December 31, 2015
In thousands
Contract changes, negotiated settlements and claims for unanticipated contract costs	$	900	$	900