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Commitments and Contingencies (Details) (USD $) | 3 Months Ended | 12 Months Ended | 3 Months Ended | 15 Months Ended
--- | --- | --- | --- | ---
Mar. 31, 2015 claim LegalMatter | Dec. 31, 2014 claim LegalMatter | Dec. 31, 2012 | Mar. 31, 2014 | Mar. 31, 2015
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Number of pending claims (legal matter) | 424 us-gaap_LossContingencyPendingClaimsNumber | 438 us-gaap_LossContingencyPendingClaimsNumber |  |  | 424 us-gaap_LossContingencyPendingClaimsNumber
Description of named defendants | Cases involving us typically name 50-300 defendants |  |  |  |
Number of claims dismissed | 62 us-gaap_LossContingencyClaimsDismissedNumber | 104 us-gaap_LossContingencyClaimsDismissedNumber |  |  |
Number of claims settled (claim) | 0 us-gaap_LossContingencyClaimsSettledNumber | 13 us-gaap_LossContingencyClaimsSettledNumber |  |  |
Claims settlements amount | $ 0 us-gaap_LossContingencyAccrualCarryingValuePayments | $ 3,200,000 us-gaap_LossContingencyAccrualCarryingValuePayments |  |  |
Cost sharing agreement, expiration date | Jan. 25, 2015 |  |  |  |
Asbestos-related liabilities, estimated liability |  | 56,500,000 us-gaap_AccrualForEnvironmentalLossContingenciesGross |  |  |
Asbestos-related liabilities, estimated insurance recovery |  | 53,000,000 us-gaap_RecordedThirdPartyEnvironmentalRecoveriesReceivable |  |  |
Minimum [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Number of defendants (defendant) | 1 us-gaap_LossContingencyNumberOfDefendants / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Maximum [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Number of defendants (defendant) | 833 us-gaap_LossContingencyNumberOfDefendants / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Asbestos forcast claim period (years) | 10 years |  | 10 years |  |
Superfund Sites Proceedings [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Number of pending claims (legal matter) | 1 us-gaap_LossContingencyPendingClaimsNumber / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember |  |  |  | 1 us-gaap_LossContingencyPendingClaimsNumber / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember
Estimated total cleanup costs, cost sharing percentage (percent) | 2.00%rog_LossSharingAgreementAllocationPercentage / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember |  |  |  |
Loss contingency, minimum possible loss |  |  |  | 18,800,000 us-gaap_SiteContingencyLossExposureNotAccruedLowEstimate / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember |
Loss contingency, maximum possible loss |  |  |  | 29,600,000 us-gaap_SiteContingencyLossExposureNotAccruedHighEstimate / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember |
Estimated total cleanup costs, accrual | 400,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember |  |  |  | 400,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_EnvironmentalRemediationContingencyAxis = rog_SuperfundSitesProceedingsMember
PCB Contamination Proceedings [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Estimated total cleanup costs, accrual | 700,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember |  |  |  | 700,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember
Accrual for environmental loss contingencies | 200,000 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember |  |  |  | 200,000 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember
Remediation and monitoring costs incurred since inception related to the PCB soil and building contamination |  | 500,000 us-gaap_PaymentsForEnvironmentalLiabilities / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember |  |  | 2,400,000 us-gaap_PaymentsForEnvironmentalLiabilities / us-gaap_EnvironmentalRemediationContingencyAxis = rog_PCBContaminationProceedingsMember
Connecticut Voluntary Corrective Action Program [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
PCB contamination of the building, liability recording during the period | 100,000 us-gaap_AccrualForEnvironmentalLossContingenciesProvisionForNewLosses / us-gaap_EnvironmentalRemediationContingencyAxis = rog_ConnecticutVoluntaryCorrectiveActionProgramMember |  |  |  |
Claim of Improper Relationship Termination [Member] |  |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |
Claims settlements amount | $ 500,000 us-gaap_LossContingencyAccrualCarryingValuePayments / us-gaap_EnvironmentalRemediationContingencyAxis = rog_ClaimofImproperRelationshipTerminationMember |  |  |  |

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