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Divestiture-related activities - asset held for sale (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 building | Dec. 31, 2013
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Divestiture-Related Activities [Abstract] |  |
Number of buildings | 2 us-gaap_NumberOfRealEstateProperties |
Property, plant and equipment | $ 7,422 us-gaap_AssetsHeldForSalePropertyPlantAndEquipment | $ 10,428 us-gaap_AssetsHeldForSalePropertyPlantAndEquipment
Total assets held for sale | $ 7,422 us-gaap_AssetsHeldForSaleCurrent | $ 10,428 us-gaap_AssetsHeldForSaleCurrent

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- Details
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Namespace Prefix: | tfx_
Data Type: | xbrli:stringItemType
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Period Type: | duration

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- Definition Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Property, plant and equipment that is held for sale apart from normal operations and anticipated to be sold in less than one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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