Accounts Receivable - Net (Tables)

6 Months Ended

Mar. 31, 2013

Accounts Receivable - Net

Net accounts receivable and billings in excess of costs on uncompleted contracts

	March 31,2013		September 30,2012
	(in thousands)
Billed	$	351,897	$	362,331
Unbilled	343,416		355,793
Contract retentions	28,012		17,908
Total accounts receivable – gross	723,325		736,032
Allowance for doubtful accounts	(36,205)		(35,552)
Total accounts receivable – net	$	687,120	$	700,480
Current billings in excess of costs on uncompleted contracts	$	79,131	$	90,909
Non-current billings in excess of costs on uncompleted contracts	1,474		4,410
Total billings in excess of costs on uncompleted contracts	$	80,605	$	95,319