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Acquisitions - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 28, 2014 | Jun. 29, 2014 | Mar. 30, 2014 | Dec. 31, 2013 | Sep. 29, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated fair value of contingent consideration | $ 33,433,000 us-gaap_BusinessCombinationContingentConsiderationLiability |  |  |  | $ 20,313,000 us-gaap_BusinessCombinationContingentConsiderationLiability |  |  |  | $ 33,433,000 us-gaap_BusinessCombinationContingentConsiderationLiability | $ 20,313,000 us-gaap_BusinessCombinationContingentConsiderationLiability |
Revenue | 476,008,000 us-gaap_SalesRevenueNet | 457,173,000 us-gaap_SalesRevenueNet | 468,105,000 us-gaap_SalesRevenueNet | 438,546,000 us-gaap_SalesRevenueNet | 450,539,000 us-gaap_SalesRevenueNet | 413,796,000 us-gaap_SalesRevenueNet | 420,059,000 us-gaap_SalesRevenueNet | 411,877,000 us-gaap_SalesRevenueNet | 1,839,832,000 us-gaap_SalesRevenueNet | 1,696,271,000 us-gaap_SalesRevenueNet | 1,551,009,000 us-gaap_SalesRevenueNet
Segment operating profit | 69,155,000 us-gaap_OperatingIncomeLoss | 81,935,000 us-gaap_OperatingIncomeLoss | 74,752,000 us-gaap_OperatingIncomeLoss | 59,020,000 us-gaap_OperatingIncomeLoss | 54,064,000 us-gaap_OperatingIncomeLoss | 66,042,000 us-gaap_OperatingIncomeLoss | 63,751,000 us-gaap_OperatingIncomeLoss | 49,404,000 us-gaap_OperatingIncomeLoss | 284,862,000 us-gaap_OperatingIncomeLoss | 233,261,000 us-gaap_OperatingIncomeLoss | (97,375,000)us-gaap_OperatingIncomeLoss
2014 Acquisition |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net | 66,314,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |  |  |  |  |  |  | 66,314,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Initial payment |  |  |  |  |  |  |  |  | 46,300,000 us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Estimated fair value of contingent consideration | 20,500,000 us-gaap_BusinessCombinationContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |  |  |  |  |  |  | 20,500,000 us-gaap_BusinessCombinationContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Working capital adjustment |  |  |  |  |  |  |  |  | 500,000 tfx_BusinessAcquisitionWorkingCapitalAdjustment / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Transaction expenses |  |  |  |  |  |  |  |  | 500,000 us-gaap_BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Revenue |  |  |  |  |  |  |  |  | 27,200,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
Segment operating profit |  |  |  |  |  |  |  |  | 3,600,000 us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandFourteenAcquisitionsMember |  |
2014 Acquisition | Intellectual property |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Useful life of intangible assets acquired, years |  |  |  |  |  |  |  |  | 15 years |  |
2014 Acquisition | Customer Lists |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Useful life of intangible assets acquired, years |  |  |  |  |  |  |  |  | 10 years |  |
2013 Acquisition |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Fair value of the consideration at the date of acquisition |  |  |  |  | $ 307,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandThirteenAcquisitionsMember |  |  |  |  | $ 307,000,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = tfx_TwoThousandThirteenAcquisitionsMember |

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