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Goodwill and Intangible Assets (Additional Information) (Details) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014 | Jan. 22, 2015
Goodwill and Intangible Assets Disclosure [Line Items] |  |  |  |
Goodwill | $ 175,009,000 us-gaap_Goodwill |  | $ 98,227,000 us-gaap_Goodwill |
Amortization expense | 2,400,000 us-gaap_AmortizationOfIntangibleAssets | 1,500,000 us-gaap_AmortizationOfIntangibleAssets |  |
Annual Future Amortization Expense |  |  |  |
Anticipated future amortization expense for remainder of 2015 | 8,000,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear |  |  |
Anticipated future amortization expense for 2016 | 10,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |  |  |
Anticipated future amortization expense for 2017 | 9,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |  |  |
Anticipated future amortization expense for 2018 | 9,400,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |  |  |
Anticipated future amortization expense for 2019 | 8,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |  |  |
Arlon [Member] |  |  |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |  |  |
Intangible assets |  |  |  | 50,020,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Goodwill |  |  |  | 85,379,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Annual Future Amortization Expense |  |  |  |
Anticipated future amortization expense for remainder of 2015 |  |  |  | 4,400,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Anticipated future amortization expense for 2016 |  |  |  | 5,800,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Anticipated future amortization expense for 2017 |  |  |  | 5,800,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Anticipated future amortization expense for 2018 |  |  |  | 5,800,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Anticipated future amortization expense for 2019 |  |  |  | 5,800,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Curamik [Member] | Unclassified Indefinite-lived Intangible Assets [Member] |  |  |  |
Annual Future Amortization Expense |  |  |  |
Intangible assets | $ 5,300,000 us-gaap_IndefinitelivedIntangibleAssetsAcquired / us-gaap_BusinessAcquisitionAxis = rog_CuramikElectronicsGmbHMember / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_UnclassifiedIndefinitelivedIntangibleAssetsMember |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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