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FAIR VALUE MEASUREMENT (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Number of life insurance policies | 70rol_DeferredCompensationArrangementWithIndividualNumberOfLifeInsurancePolicies | ||
| Life insurance policies, net face value | $ 42,400rol_DeferredCompensationArrangementWithIndividualLifeInsuranceFaceValueNet | ||
| Cash surrender value of life insurance policies | 12,700us-gaap_CashSurrenderValueOfLifeInsurance | 11,500us-gaap_CashSurrenderValueOfLifeInsurance | |
| Deferred compensation assets | 13,700us-gaap_DeferredCompensationPlanAssets | 13,700us-gaap_DeferredCompensationPlanAssets | |
| Defined Contribution Pension [Member] | |||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Cash and cash equivalents | |||
| Total fair value | |||
| Defined Contribution Pension [Member] | Fair Value, Inputs, Level 1 [Member] | |||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Cash and cash equivalents |
62us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
480us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
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| Total fair value |
62us-gaap_AssetsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
480us-gaap_AssetsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel1Member |
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| Defined Contribution Pension [Member] | Estimate of Fair Value, Fair Value Disclosure [Member] | |||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||
| Cash and cash equivalents |
62us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
480us-gaap_CashAndCashEquivalentsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
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| Total fair value |
$ 62us-gaap_AssetsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
$ 480us-gaap_AssetsFairValueDisclosure / us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis = us-gaap_DefinedContributionPensionMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
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- Definition
Deferred Compensation Arrangement with Individual, Life Insurance Face Value Net No definition available.
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- Definition
Deferred Compensation Arrangement with Individual, Number of Life Insurance Policies No definition available.
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- Definition
Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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