XML 65 R52.htm IDEA: XBRL DOCUMENT
v3.20.4

Basis of Presentation, Organization and Summary of Significant Accounting Policies (Concentration of Credit and Investment Risk) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Accounting Policies [Abstract] |  |  |
Significant credit losses, amount | $ 0 | $ 0 | $ 0

X
- Definition Significant Credit Losses, Amount + References No definition available. + Details
Name: | rog_SignificantCreditLossesAmount
Namespace Prefix: | rog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration