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Business Segment and Geographic Information (Narrative) (Details)
Dec. 31, 2014
joint_venture
Segment Reporting Information [Line Items]  
Number of joint ventures that are 50% owned 2rog_NumberOfJointVentures
Rogers INOAC Corporation [Member]  
Segment Reporting Information [Line Items]  
Ownership interest in joint venture 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= rog_RogersINOCCorporationMember
Rogers INOAC Suzhou Corporation [Member]  
Segment Reporting Information [Line Items]  
Ownership interest in joint venture 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= rog_RogersINOCSuzhouCorporationMember