v3.25.4
EMPLOYEE BENEFIT PLANS - Pension Plan - Other (Details) - Pension plan
 1 Months Ended
Jan. 01, 2010
Dec. 31, 2009
Employee Benefit Plans    
Pensions paid as annuity using pension formula 1.50% 2.00%
Average of highest consecutive years of total compensation over the last ten years multiplied by credited service up to thirty years to calculate pension formula   5 years
Total compensation year used for average of the five highest consecutive years multiplied by credited service up to thirty years to calculate pension formula   10 years
Maximum credited service (in years)   30 years