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Acquisition (Additional Information) (Details) (USD $) | 3 Months Ended | 0 Months Ended | 2 Months Ended
--- | --- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Jan. 22, 2015 | Mar. 31, 2015
Business Acquisition [Line Items] |  |  |  |
Weighted average amortization period | 5 years 6 months |  |  |
Annual 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 |  |  | 8,000,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
Anticipated future amortization expense for 2016 | 10,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |  |  | 10,200,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Anticipated future amortization expense for 2017 | 9,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |  |  | 9,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
Anticipated future amortization expense for 2018 | 9,400,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |  |  | 9,400,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
Anticipated future amortization expense for 2019 | 8,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |  |  | 8,900,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Customer relationships [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Weighted average amortization period | 6 years 1 month |  |  |
Arlon [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Consideration transferred |  |  | 157,000,000 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember |
Intangible assets |  |  | 50,020,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / 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 |
Transaction costs | 1,500,000 us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember |  |  | 1,500,000 us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Revenues |  |  |  | 20,200,000 us-gaap_Revenues / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember
Arlon [Member] | Minimum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Annual amortization expense |  |  | 1,800,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
Arlon [Member] | Maximum [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Annual amortization expense |  |  | 5,300,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
Arlon [Member] | Developed technology [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  |  | 15,800,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_DevelopedTechnologyRightsMember |
Weighted average amortization period |  |  | 5 years 8 months |
Arlon [Member] | Customer relationships [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  |  | 32,700,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CustomerRelationshipsMember |
Weighted average amortization period |  |  | 6 years 0 months |
Arlon [Member] | Trademarks [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Intangible assets |  |  | 1,600,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_TrademarksMember |
Weighted average amortization period |  |  | 3 years 2 months |
Arlon [Member] | Revolving Credit Facility [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Proceeds from line of credit | $ 125,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  | $ 125,000,000 us-gaap_ProceedsFromLinesOfCredit / us-gaap_BusinessAcquisitionAxis = rog_ArlonMember / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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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 consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + 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 fifth 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 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585 + Details
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