Capital Stock and Equity Compensation (Shares of Capital Stock Reserved) (Details) - shares	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	1,204,949	1,334,462
Shares reserved for issuance under outstanding restricted stock unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	320,381	324,260
Deferred compensation to be paid in stock, including deferred stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	9,500	12,715
Additional shares reserved for issuance under Rogers Corporation 2019 Long-Term Equity Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	869,516	918,809
Shares reserved for issuance under the Rogers Corporation Global Stock Ownership Plan for Employees(1)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance (in shares)	5,552	78,678