Accounts Receivable

9 Months Ended

Sep. 30, 2012

Accounts Receivable, Net [Abstract]

Accounts Receivable

ACCOUNTS RECEIVABLE:

Accounts receivable consisted of the following as of September 30, 2012 and December 31, 2011 (dollars in thousands):

	September 30, 2012			December 31, 2011
Accounts receivable - trade	$	133,385		$	130,486
Accounts receivable - grants	23,220			20,753
Accounts receivable - insurance claims	19,395			17,336
Total accounts receivable	176,000			168,575
Less: Allowance for doubtful accounts	(2,592		)	(2,807		)
Accounts receivable, net	$	173,408		$	165,768