v2.4.0.8
BENEFIT PLANS (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Pension Benefits [Member]
   
Net periodic benefit cost [Abstract]    
Service cost $ 882 $ 985
Interest cost 1,318 1,029
Expected return on plan assets (2,980) (2,451)
Amortization of unrecognized net loss (77) 1,007
Amortization of prior service cost 1 14
Net periodic benefit cost (856) 584
Post-retirement Benefits [Member]
   
Net periodic benefit cost [Abstract]    
Service cost 0 0
Interest cost 27 22
Expected return on plan assets 0 0
Amortization of unrecognized net loss 0 3
Amortization of prior service cost (45) (45)
Net periodic benefit cost $ (18) $ (20)