Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2013

ACCOUNTS RECEIVABLE: [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable consisted of the following as of March 31, 2013 and December 31, 2012 (dollars in thousands):

	March 31, 2013			December 31, 2012
Accounts receivable - trade	$	230,161		$	214,163
Accounts receivable - grants	20,898			25,036
Accounts receivable - insurance claims	15,158			26,443
Total accounts receivable	266,217			265,642
Less: Allowance for doubtful accounts	(2,688		)	(2,693		)
Accounts receivable, net	$	263,529		$	262,949