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EMPLOYEE BENEFIT PLANS- Net Periodic Benefit Cost (Credit) And Related Components (Details) (Multiple Employer Pension Plan, USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Multiple Employer Pension Plan
       
Multiemployer Plans [Line Items]        
Interest cost $ 63 $ 67 $ 190 $ 200
Expected return on plan assets (82) (81) (247) (243)
Amortization of net losses 15 10 46 29
Net periodic benefit $ (4) $ (4) $ (11) $ (14)