Convertible notes, number of trading days to trigger conversion feature.

No definition available.

Name:	tfx_ConvertibleNotesThresholdNumberOfTradingDaysToTriggerConversionFeature
Namespace Prefix:	tfx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument earliest date of redemption.

+ References

No definition available.

+ Details

Name:	tfx_DebtInstrumentEarliestDateOfRedemption
Namespace Prefix:	tfx_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Declining percent of redemption price to principal amount.

+ References

No definition available.

+ Details

Name:	tfx_DecliningPercentOfRedemptionPriceToPrincipalAmount
Namespace Prefix:	tfx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Make whole premium as percentage of principal amount of notes subject to redemption.

+ References

No definition available.

+ Details

Name:	tfx_MakeWholePremiumAsPercentageOfPrincipalAmountOfNotesSubjectToRedemption
Namespace Prefix:	tfx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percent of principal amount of notes redeemable.

+ References

No definition available.

+ Details

Name:	tfx_PercentOfPrincipalAmountOfNotesRedeemable
Namespace Prefix:	tfx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percent of redemption price to principal amount.

+ References

No definition available.

+ Details

Name:	tfx_PercentOfRedemptionPriceToPrincipalAmount
Namespace Prefix:	tfx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceed from senior notes used to repay revolving line of credit.

+ References

No definition available.

+ Details

Name:	tfx_ProceedFromSeniorNotesUsedToRepayRevolvingLineOfCredit
Namespace Prefix:	tfx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

Name:	us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleStockPriceTrigger
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentDateOfFirstRequiredPayment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph e

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Borrowings - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended			0 Months Ended	1 Months Ended	9 Months Ended		9 Months Ended				3 Months Ended	9 Months Ended		12 Months Ended
Borrowings - Additional Information (Detail) (USD $)	Sep. 28, 2014	Sep. 28, 2014	Dec. 31, 2013	Sep. 29, 2013	May 21, 2014 5.25% Senior Notes due 2024	May 21, 2014 5.25% Senior Notes due 2024	Sep. 28, 2014 5.25% Senior Notes due 2024	Dec. 31, 2013 5.25% Senior Notes due 2024	Sep. 28, 2014 5.25% Senior Notes due 2024 Redemption prior to June 15, 2019	Sep. 28, 2014 5.25% Senior Notes due 2024 Redemption prior to June 15, 2017	Sep. 28, 2014 5.25% Senior Notes due 2024 Minimum	Sep. 28, 2014 5.25% Senior Notes due 2024 Maximum	Dec. 31, 2013 3.875% Convertible Senior Subordinated Notes	Sep. 28, 2014 3.875% Convertible Senior Subordinated Notes	Sep. 28, 2014 6.875% Senior Subordinated Notes due 2019	Dec. 31, 2013 6.875% Senior Subordinated Notes due 2019
Debt Instrument [Line Items]
5.25% Senior Notes due 2024	$ 250,000,000	$ 250,000,000	$ 0			$ 250,000,000
Debt instrument, interest payment commencing date						Dec. 15, 2014
Debt instrument, stated interest rate	3.875%	3.875%	3.875%	3.875%		5.25%	5.25%	5.25%					3.875%	3.875%	6.875%	6.875%
Transaction fees						4,500,000
Proceed from senior notes used to repay revolving line of credit					245,000,000
Percent of redemption price to principal amount any time on or after June 15, 2019											100.00%	102.625%
Declining percent of redemption price to principal amount on June 15, 2022							0.875%
Debt instrument, earliest date of redemption							Jun. 15, 2019
Redemption price percentage									100.00%	105.25%
Make-whole premium as percentage of principal amount of 2024 Notes subject to redemption									1.00%
Basis spread									0.50%
Percent of principal amount of notes redeemable										35.00%
Convertible notes, threshold number of trading days to trigger conversion feature														20 days
Convertible notes, threshold consecutive trading days														30 days
Convertible notes, threshold percentage of stock price trigger													130.00%	130.00%
Conversion price, per share														$ 61.32
Convertible notes, stock price trigger														$ 79.72
Total long-term debt	$ 1,060,656,000	$ 1,060,656,000	$ 1,281,587,000
Line of credit facility interest rate	1.90%
Debt instrument maturity date		Jul. 16, 2018				Jun. 15, 2024	Jun. 15, 2024							Aug. 01, 2017	Jun. 01, 2019	Jun. 01, 2019