Trade Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2013

Trade Accounts Receivable

Schedule of trade accounts receivable

	As of
	September 30,			December 31,
	2013			2012
	(In thousands)
Trade accounts receivable	$	167,626		$	188,463
Contracts in process, net	12,435			39,804
Total trade accounts receivable	180,061			228,267
Allowance for doubtful accounts	(14,806		)	(16,894		)
Total trade accounts receivable, net	$	165,255		$	211,373