Shareholders' Equity and Stock Options (Shares of Capital Stock Reserved) (Details)	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	2,508,249,000	2,293,823,000
Stock acquisition program (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	120,883,000	120,883,000
Stock options and restricted stock (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	862,040,000	1,328,414,000
Shares available for issuance (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	1,176,882,000	479,307,000
Rogers Employee and Investment Plan (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	169,044,000	169,044,000
Rogers Corporation Global Stock Ownership Plan for Employees (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	166,152,000	181,617,000
Deferred compensation to be paid in stock (shares) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares reserved for future issuance	13,248,000	14,558,000