OTHER NON-CURRENT ASSETS (Tables)

12 Months Ended

Dec. 31, 2011

Other Non-Current Assets

Other non-current assets consist of the following at the dates indicated (in thousands):

	December 31,
	2011		2010
Prepaid services	$	978	$	5,836
Unbilled revenue		25		2,163
Derivative assets		—		3,892
Debt issuance costs, net		14,431		11,184
Insurance receivables related to environmental expenditures		4,740		8,826
Indemnification asset (see Note 2)		17,720		17,720
Other		9,323		8,842
Total other non-current assets	$	47,217	$	58,463