INCOME TAXES (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Gross deferred tax assets	$ 407,175	$ 412,155
Valuation allowance	(380,208)	(393,034)
Deferred tax assets, net of valuation allowance	26,967	19,121
Deferred tax liabilities	34,107	26,261
Net deferred tax liabilities	$ (7,140)	$ (7,140)