XML 89 R51.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Basis of Presentation, Organization and Summary of Significant Accounting Policies (Fair Value of Financial Statements) (Details) - London Interbank Offered Rate (LIBOR) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate spread over variable rate | 1.375% |
Third Amended Credit Agreement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Interest rate spread over variable rate | 1.375% | 0.50%

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rog_ThirdAmendedCreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |