PER SHARE DATA (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Jan. 24, 2012
Income (Numerator) [Abstract]
Income (loss) available to common shareholders	$ 22,866	$ (494)
Effect of dilutive share-based awards	0	0
Income (loss) available to common shareholders plus assumed exercise of all outstanding share based awards	$ 22,866	$ (494)
Shares (Denominator) [Abstract]
Income (loss) available to common shareholders of all outstanding share based awards (in shares)	91,728,000	83,449,000
Effect of dilutive share-based awards (in shares)	42,000	0
Income (loss) available to common shareholders plus assumed exercise (in shares)	91,770,000	83,449,000
Per share amount [Abstract]
Income (loss) available to common shareholders of all outstanding share based awards (in dollars per share)	$ 0.25	$ (0.01)
Income (loss) available to common shareholders plus assumed exercise of (in dollars per share)	$ 0.25	$ (0.01)
Shares issued (in shares)			10,952,381
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	3,000,000	3,000,000
Weighted average exercise price of antidilutive securities (in dollars per share)	$ 20.80	$ 20.77
Other Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	68,000	57,000