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Net (Gain) Loss on Sales of Businesses and Assets (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Net (gain) loss on sales of businesses and assets | $ (332) | $ 582 | $ (341)

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- Definition Net gain on sale of business and assets. + References No definition available. + Details
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Namespace Prefix: | tfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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