GAIN (LOSS) ON NOTE REPURCHASE (Details) (USD $)	1 Months Ended			12 Months Ended
	Oct. 31, 2010	Jul. 31, 2010	Jun. 30, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Gains (Losses) on Extinguishment of Debt [Abstract]
Loss on senior note repurchase				$ 0	$ 0	$ (14,573,000)
Senior Unsecured Notes 8 Percent [Member]
Gains (Losses) on Extinguishment of Debt [Abstract]
Loss on senior note repurchase				0	0	(14,573,000)
Extinguishment of Debt, Amount	138,900,000	6,500,000	47,400,000
Debt Instrument, Interest Rate, Stated Percentage			8.00%
Debt Extinguishment Costs, Early Tender Premium						13,000,000
Write off of Deferred Debt Issuance Cost						1,200,000
Debt Extinguishment Costs, Other Fees						$ 400,000