XML 50 R65.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Goodwill and Intangible Assets (Weighted Average Amortization Period by Intangible Asset Class) (Details) | 3 Months Ended
--- | ---
Mar. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items] |
Weighted Average Amortization Period | 5 years 6 months
Trademarks and patents [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Weighted Average Amortization Period | 4 years 2 months
Technology [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Weighted Average Amortization Period | 4 years 8 months
Covenant not-to-compete [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Weighted Average Amortization Period | 1 year 0 months
Customer relationships [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Weighted Average Amortization Period | 6 years 1 month

X
- Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=rog_PatentsAndTrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_NoncompeteAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TechnologyBasedIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |