RECENT DEVELOPMENTS AND SIGNIFICANT EVENTS (Income Tax Reporting and Accounting) (Details) (USD $)	3 Months Ended												12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Internal Revenue Service (IRS) [Member]	Oct. 25, 2011 Internal Revenue Service (IRS) [Member] Maximum [Member]
Income Tax Examination [Line Items]
Refund from the utilization of net operating loss carryback claims																	$ 13,600,000
Asset recognized to reflect possible results of amendments																0
Deferred Tax Asset Valuation Allowance [Abstract]
Provision (benefit) for income taxes	$ 4,638,000	$ 2,407,000	$ (31,830,000)	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 23,988,000	$ (3,951,000)	$ (2,024,000)	$ (24,785,000)	$ 0	$ 18,013,000