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Fair Value Measurement (Schedule Of Reconciliation Of Changes In Level 3 Financial Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Apr. 01, 2012 | Mar. 27, 2011
Fair Value Measurement [Abstract] |  |
Beginning balance | $ 9,676 |
Initial estimate of contingent consideration |  | 15,400
Payment |  | (6,000)
Revaluations | (658) |
Ending balance | $ 9,018 | $ 9,400

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- Definition Initial estimate of contingent consideration. + References No definition available. + Details
Name: | tfx_InitialEstimateOfContingentConsideration
Namespace Prefix: | tfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Payment for contingent consideration. + References No definition available. + Details
Name: | tfx_PaymentForContingentConsideration
Namespace Prefix: | tfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Revaluation of contingent consideration. + References No definition available. + Details
Name: | tfx_RevaluationOfContingentConsideration
Namespace Prefix: | tfx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- Definition This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant