EARNINGS (LOSS) PER SHARE (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Earnings (Loss) Per Share
Net earnings (loss)	$ (32,673)	$ (3,330)
Net earnings attributable to participating securities	0	0
Net earnings (loss) attributable to common stock for basic earnings per share	(32,673)	(3,330)
Adjustment for liability classified stock-based compensation awards	0	0
Net earnings (loss) for diluted earnings per share	(32,673)	(3,330)
Weighted average common shares outstanding during the period for basic earnings (loss) per share (in shares)	113,821	111,343
Dilutive effects of potential common shares (in shares)	0	0
Weighted average common shares outstanding during the period, including the effects of dilutive potential common shares, for diluted earnings (loss) per share (in shares)	113,821	111,343
Continuing Operations
Earnings (Loss) Per Share
Net earnings (loss)	(32,673)	(9,921)
Net earnings attributable to participating securities	0	0
Net earnings (loss) attributable to common stock for basic earnings per share	(32,673)	(9,921)
Adjustment for liability classified stock-based compensation awards	0	0
Net earnings (loss) for diluted earnings per share	(32,673)	(9,921)
Discontinued Operations
Earnings (Loss) Per Share
Net earnings (loss)	0	6,591
Net earnings attributable to participating securities	0	0
Net earnings (loss) attributable to common stock for basic earnings per share	0	6,591
Adjustment for liability classified stock-based compensation awards	0	0
Net earnings (loss) for diluted earnings per share	$ 0	$ 6,591