Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT PLANS (Details)

v2.4.1.9
EMPLOYEE BENEFIT PLANS (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
CHANGE IN ACCUMULATED BENEFIT OBLIGATION      
Accumulated Benefit obligation at beginning of year $ 185,947us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation $ 210,815us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation  
Service cost 74us-gaap_DefinedBenefitPlanServiceCost 112us-gaap_DefinedBenefitPlanServiceCost 100us-gaap_DefinedBenefitPlanServiceCost
Interest cost 9,427rol_DefinedBenefitPlanChangeInBenefitObligationInterestCost 8,551rol_DefinedBenefitPlanChangeInBenefitObligationInterestCost  
Actuarial (gain) loss 42,056us-gaap_DefinedBenefitPlanActuarialGainLoss (24,724)us-gaap_DefinedBenefitPlanActuarialGainLoss  
Benefits paid (15,783)us-gaap_DefinedBenefitPlanBenefitsPaid (8,807)us-gaap_DefinedBenefitPlanBenefitsPaid  
Accumulated Benefit obligation at end of year 221,721us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation 185,947us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation 210,815us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation
Non-cash (increases) decreases in the minimum pension liability $ (41,700)rol_IncreaseDecreaseInMinimumPensionLiability $ 45,700rol_IncreaseDecreaseInMinimumPensionLiability $ (15,400)rol_IncreaseDecreaseInMinimumPensionLiability