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Summary of significant accounting policies - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 tradename unit | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of reporting units | 5 tfx_NumberofReportingUnits |  |  |
Number of reporting units, two-step quantitative impairment test | 3 tfx_NumberofReportingUnitsIncludingGoodwill |  |  |
Number of trade names | 2 tfx_NumberofTradeNames |  |  |
Asset Impairment Charges |  |  | $ 10,841,000 us-gaap_AssetImpairmentCharges |
Weighted average amortization period of intangible assets, in years |  | 13 years |  |
Reserve for returns and allowances |  | 4,100,000 us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns | 3,300,000 us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns |
Reserve for estimated rebates |  | 10,400,000 tfx_ReserveForEstimatedRebates | 7,800,000 tfx_ReserveForEstimatedRebates |
In-process Research and Development Asset |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Asset Impairment Charges |  |  | 7,400,000 us-gaap_AssetImpairmentCharges / us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_InProcessResearchAndDevelopmentMember |
Minimum | Intellectual property |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 3 years |  |
Minimum | Customer Lists |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 5 years |  |
Minimum | Distribution rights |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 3 years |  |
Minimum | Trade Names |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 1 year |  |
Maximum | Intellectual property |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 20 years |  |
Maximum | Customer Lists |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 30 years |  |
Maximum | Distribution rights |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 22 years |  |
Maximum | Trade Names |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of Intangible assets, in years |  | 30 years |  |
Land Improvements |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 5 years |  |
Building |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 30 years |  |
Machinery and Equipment | Minimum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 3 years |  |
Machinery and Equipment | Maximum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 10 years |  |
Computer Equipment and Software | Minimum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 3 years |  |
Computer Equipment and Software | Maximum |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Useful life of plant and equipment, in years |  | 10 years |  |
Previously Reported |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Payments related to tax withholding for share-based compensation |  |  | $ 2,700,000 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember | $ 1,600,000 us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation / us-gaap_StatementScenarioAxis = us-gaap_ScenarioPreviouslyReportedMember

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + 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=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228 + Details
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