Joint Ventures (Accounted for Under Equity Method of Accounting) (Details)	3 Months Ended
	Mar. 31, 2016
Schedule of Equity Method Investments [Line Items]
Fiscal Year-End	--12-31
Rogers INOAC Corporation | Japan | High Performance Foams
Schedule of Equity Method Investments [Line Items]
Fiscal Year-End	--10-31
Rogers INOAC Suzhou Corporation | China | High Performance Foams
Schedule of Equity Method Investments [Line Items]
Fiscal Year-End	--12-31