PER SHARE DATA (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issued during period (in shares)			10,952,381
Income (Numerator) [Abstract]
Income available to common shareholders	$ 20,624	$ 12,826	$ 43,490	$ 12,332
Effect of dilutive share-based awards	0	0	0	0
Income available to common shareholders plus assumed exercise of all outstanding share based awards	$ 20,624	$ 12,826	$ 43,490	$ 12,332
Shares (Denominator) [Abstract]
Income available to common shareholders of all outstanding share based awards (in shares)	94,436,000	83,454,000	93,082,000	83,451,000
Effect of dilutive share-based awards (in shares)	105,000	60,000	74,000	59,000
Income available to common shareholders plus assumed exercise (in shares)	94,541,000	83,514,000	93,156,000	83,510,000
Per share amount [Abstract]
Income available to common shareholders of all outstanding share based awards (in dollars per share)	$ 0.22	$ 0.15	$ 0.47	$ 0.15
Income available to common shareholders plus assumed exercise of (in dollars per share)	$ 0.22	$ 0.15	$ 0.47	$ 0.15
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted shares (in shares)	2,800,000	3,000,000	3,000,000	3,000,000
Weighted average exercise price of antidilutive securities (in dollars per share)	$ 20.51	$ 21.03	$ 20.70	$ 21.01