PER SHARE DATA (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	50,000		17,000
Shares issued during period (in shares)			10,952,381
Income (Numerator) [Abstract]
Income available to common shareholders	$ 23,825	$ 11,934	$ 67,315	$ 24,266
Effect of dilutive share-based awards	0	0	0	0
Income available to common shareholders plus assumed exercise of all outstanding share based awards	$ 23,825	$ 11,934	$ 67,315	$ 24,266
Shares (Denominator) [Abstract]
Income available to common shareholders of all outstanding share based awards (in shares)	94,438,000	83,489,000	93,534,000	83,486,000
Effect of dilutive share-based awards (in shares)	91,000	0	79,000	26,000
Income available to common shareholders plus assumed exercise (in shares)	94,529,000	83,489,000	93,613,000	83,512,000
Per share amount [Abstract]
Income available to common shareholders of all outstanding share based awards (in dollars per share)	$ 0.25	$ 0.14	$ 0.72	$ 0.29
Income available to common shareholders plus assumed exercise of (in dollars per share)	$ 0.25	$ 0.14	$ 0.72	$ 0.29
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	2,900,000	2,900,000	2,900,000	2,900,000
Weighted average exercise price of antidilutive securities (in dollars per share)	$ 20.59	$ 21.50	$ 20.67	$ 21.45