Additional Proceeds Under Line of Credit

No definition available.

Name:	rog_AdditionalProceedsUnderLineofCredit
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Covenant Requirement, Interest Coverage Ratio

+ References

No definition available.

+ Details

Name:	rog_CovenantRequirementInterestCoverageRatio
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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Debt Covenant, Allowed Dividend Payments

+ References

No definition available.

+ Details

Name:	rog_DebtInstrumentDebtCovenantAllowedDividendPayments
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Debt Instrument Higher Range Basis Spread On Variable Rate

+ References

No definition available.

+ Details

Name:	rog_DebtInstrumentHigherRangeBasisSpreadOnVariableRate
Namespace Prefix:	rog_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Leverage Ratio, Maximum

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument Lower Range Basis Spread On Variable Rate

+ References

No definition available.

+ Details

Name:	rog_DebtInstrumentLowerRangeBasisSpreadOnVariableRate
Namespace Prefix:	rog_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Initial Lease Term Expiration Year

+ References

No definition available.

+ Details

Name:	rog_InitialLeaseTermExpirationYear
Namespace Prefix:	rog_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

LIBORS Spread Maximum

+ References

No definition available.

+ Details

Name:	rog_LIBORSSpreadMaximum
Namespace Prefix:	rog_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

LIBORS Spread Minimum

+ References

No definition available.

+ Details

Name:	rog_LIBORSSpreadMinimum
Namespace Prefix:	rog_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Leverage Ratio, Maximum

+ References

No definition available.

+ Details

Name:	rog_LeverageRatioMaximum
Namespace Prefix:	rog_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Additional Borrowing Capacity

+ References

No definition available.

+ Details

Name:	rog_LineofCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	rog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum Leverage Ratio Option

+ References

No definition available.

+ Details

Name:	rog_MaximumLeverageRatioOption
Namespace Prefix:	rog_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-SubTopic 30
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

+ Details

Name:	us-gaap_AmortizationOfFinancingCosts
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The expense charged against earnings for the periodic recognition of capitalized leases. This element may apply to energy companies that lease mineral producing properties and to other enterprises that capitalize property, plant, or equipment obtained through capital leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

Name:	us-gaap_AmortizationOfLeasedAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_CapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
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+ Details

Name:	us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

- 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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of hedged item in hedging relationship. Excludes hedged asset or liability.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeAmountOfHedgedItem
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
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+ Details

Name:	us-gaap_InterestExpenseDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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-Topic 210
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+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

Name:	us-gaap_LongTermDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ProceedsFromLinesOfCredit
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MaximumMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=rog_ThirdAmendedCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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Balance Type:
Period Type:

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Name:	srt_RangeAxis=srt_MinimumMember
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Data Type:	na
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Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
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Data Type:	na
Balance Type:
Period Type:

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Name:	srt_StatementGeographicalAxis=country_DE
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Balance Type:
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=rog_GriswoldMember
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Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=rog_RogersPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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Data Type:	na
Balance Type:
Period Type:

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Data Type:	na
Balance Type:
Period Type:

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Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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Debt and Capital Leases (Additional Information) (Detail)			12 Months Ended
	Jul. 06, 2018 USD ($)	Feb. 17, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)	Jun. 18, 2015
Debt Instrument [Line Items]
Interest expense on debt			$ 6,100,000	$ 5,200,000	$ 3,100,000
Unused commitment fee			600,000	600,000	400,000
Borrowings under revolving credit facility			$ 228,482,000	130,982,000
Leverage ratio, cash dividends, maximum			2.75
Maximum
Debt Instrument [Line Items]
Allowed dividend payments			$ 20,000,000
Third Amended Credit Agreement
Debt Instrument [Line Items]
Leverage ratio, maximum		3.25
Maximum leverage ratio option		3.5
Interest coverage ratio, minimum		3
Repayments of lines of credit			5,000,000	110,200,000
Long-term line of credit			1,700,000
Amortization expense, debt issue costs			$ 600,000	500,000
Third Amended Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Term		5 years
Credit agreement, maximum borrowing capacity		$ 450,000,000
Line of credit facility, additional borrowing capacity		$ 175,000,000
Third Amended Credit Agreement \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee, percentage			2000.00%
Third Amended Credit Agreement \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee, percentage			3000.00%
Interest rate swap \| Third Amended Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Derivative, amount of hedged item						$ 75,000,000
Germany
Debt Instrument [Line Items]
Initial lease term expiration year			2021
Capital lease obligation			$ 5,000,000	5,700,000
Amortization expense related to the capital lease			300,000	300,000	$ 300,000
Capital leases accumulated depreciation			3,500,000	$ 3,300,000
Griswold
Debt Instrument [Line Items]
Cash from credit facility used to fund acquisition	$ 82,500,000
Merged Plan
Debt Instrument [Line Items]
Additional proceeds under line of credit			$ 20,000,000
Secured Revolving Credit Agreement
Debt Instrument [Line Items]
Debt instrument, lower range basis spread on variable rate							3750.00%
Debt instrument, higher range basis spread on variable rate							7500.00%
Secured Revolving Credit Agreement \| Eurocurrency loans
Debt Instrument [Line Items]
LIBOR spread minimum							13750.00%
LIBOR spread maximum							17500.00%
London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis points spread			1.50%
London Interbank Offered Rate (LIBOR) \| Third Amended Credit Agreement
Debt Instrument [Line Items]
Basis points spread			1.50%