Quarterly report pursuant to Section 13 or 15(d)

BENEFIT PLANS - Narrative (Details)

v3.5.0.2
BENEFIT PLANS - Narrative (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2016
USD ($)
year
Dec. 31, 2015
Defined Benefit Plan, Information about Plan Assets [Abstract]    
Fair value of plan assets, Percentage 100.00% 100.00%
Average duration of plan assets investment in bonds, years 12 years 10 months 11 days  
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]    
Match - Base pay contributed to the plan matches participant contributions, up to the first 4%  
Base Pay Contributed To Plan Profit Sharing profit-sharing contribution equal to 1% of eligible participants’ 2015  
Pension Benefits    
Defined Benefit Plan, Information about Plan Assets [Abstract]    
Estimated Life Of Benefit Obligations 11 years 10 months 25 days  
Post Retirement Benefits    
Benefit Plans (Textuals) [Abstract]    
Employees retirement age for health care and life insurance benefits under unfunded defined benefit post-retirement plan | year 55  
Deferred Compensation Arrangement With Individual Requisite Service Period 10 years  
Plan Amendment Measurement Reduction In Liability | $ $ 5  
Equity Securities    
Defined Benefit Plan, Information about Plan Assets [Abstract]    
Fair value of plan assets, Percentage 22.00% 20.00%
Defined Benefit Plan, Actual Plan Asset Allocations 47.00%  
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum 20.00%  
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum 50.00%  
Covered Bonds    
Defined Benefit Plan, Information about Plan Assets [Abstract]    
Defined Benefit Plan, Actual Plan Asset Allocations 52.00%  
Defined Benefit Plan, Target Plan Asset Allocations Range Minimum 50.00%  
Defined Benefit Plan, Target Plan Asset Allocations Range Maximum 80.00%  
Cash and Cash Equivalents    
Defined Benefit Plan, Information about Plan Assets [Abstract]    
Defined Benefit Plan, Actual Plan Asset Allocations 1.00%