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Operations and Significant Accounting Policies (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Goodwill and Intangible Asset Impairment [Abstract] |  |  |
Goodwill | $ 256,232,000 us-gaap_Goodwill | $ 248,428,000 us-gaap_Goodwill | $ 248,502,000 us-gaap_Goodwill
Other intangible assets, net | 316,440,000 us-gaap_IntangibleAssetsNetExcludingGoodwill | 319,440,000 us-gaap_IntangibleAssetsNetExcludingGoodwill |
Acquired Intangible Assets [Abstract] |  |  |
Weighted average amortization period (in years) | 27 years |  |
Revenue Recognition [Abstract] |  |  |
Net Commission Service Fee Revenue | 50.00%cnmd_NetCommissionServiceFeeRevenue |  |
Shipping and handling costs | 13,600,000 us-gaap_ShippingHandlingAndTransportationCosts | 12,600,000 us-gaap_ShippingHandlingAndTransportationCosts | 12,800,000 us-gaap_ShippingHandlingAndTransportationCosts
Allowance for doubtful accounts | $ 1,239,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent | $ 1,384,000 us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent |
Linvatec Corporation [Member] |  |  |
Acquired Intangible Assets [Abstract] |  |  |
Number of years of historical revenue attrition used to evaluate acquired finite-lived intangible assets useful life | 5 years |  |
Annual attrition rate used to evaluate acquired finite-lived intangible assets useful life | 2.60%cnmd_AcquiredFiniteLivedIntangibleAssetsUsefulLifeEvaluationAssumptionsUsedAnnualAttritionRate / us-gaap_BusinessAcquisitionAxis = cnmd_LinvatecCorporationMember |  |
Customer Relationships [Member] |  |  |
Acquired Intangible Assets [Abstract] |  |  |
Weighted average amortization period (in years) | 33 years |  |
Customer Relationships [Member] | Linvatec Corporation [Member] |  |  |
Acquired Intangible Assets [Abstract] |  |  |
Weighted average amortization period (in years) | 38 years |  |
Customer Relationships [Member] | Other Acquisitions Excluding Linvatec Corporation[Member] |  |  |
Acquired Intangible Assets [Abstract] |  |  |
Weighted average amortization period (in years) | 16 years |  |
Promotional, Marketing and Distribution Rights [Member] |  |  |
Acquired Intangible Assets [Abstract] |  |  |
Weighted average amortization period (in years) | 25 years |  |

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- Definition Acquired Finite-lived Intangible Assets, Useful Life Evaluation, Assumptions Used, Annual Attrition Rate + References No definition available. + Details
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- Definition Acquired Finite-lived Intangible Assets, Useful Life Evaluation, Assumptions Used, Number of Years of Historical Revenue + References No definition available. + Details
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- Definition The percentage of net commission service fees earned under our contractual agreement with Musculoskeletal Transplant Foundation. + References No definition available. + Details
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- 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 A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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