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EARNINGS PER SHARE (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
EARNINGS PER SHARE [Abstract]    
Net income from continuing operations $ 7,181 $ 6,226
Weighted-average shares outstanding - basic 46,087 48,455
Add effect of dilutive securities:    
Unvested restricted shares 427 455
Stock options 1 19
Weighted-average shares outstanding - diluted 46,515 48,929
Basic net income per share from continuing operations $ 0.16 $ 0.13
Diluted net income per share from continuing operations $ 0.15 $ 0.13
Anti-dilutive shares excluded from diluted shares outstanding 89,832 182,749