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Financial instruments - aggregate accounts receivable, net of allowance for doubtful accounts (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Derivatives Fair Value [Line Items] |  |  |  |
Accounts receivable, net | $ 273,704 us-gaap_AccountsReceivableNetCurrent |  | $ 295,290 us-gaap_AccountsReceivableNetCurrent |
Spain, Italy, Portugal, and Greece |  |  |  |
Derivatives Fair Value [Line Items] |  |  |  |
Accounts receivable, net | $ 76,190 us-gaap_AccountsReceivableNetCurrent / us-gaap_StatementGeographicalAxis = tfx_SpainItalyPortugalAndGreeceMember | [1] | $ 97,852 us-gaap_AccountsReceivableNetCurrent / us-gaap_StatementGeographicalAxis = tfx_SpainItalyPortugalAndGreeceMember | [1]
Percentage of total net current and long-term accounts receivables | 27.30%tfx_EntityWideAccountsReceivableByCountryPercentage / us-gaap_StatementGeographicalAxis = tfx_SpainItalyPortugalAndGreeceMember |  | 31.00%tfx_EntityWideAccountsReceivableByCountryPercentage / us-gaap_StatementGeographicalAxis = tfx_SpainItalyPortugalAndGreeceMember |
[1] | The long-term portion of accounts receivable, net from customers in Spain, Italy, Greece and Portugal at December 31, 2014 and 2013 was $11.3 million and $17.6 million, respectively, and is reported in other assets.

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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + 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 210.5-02.3-4) -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 3 -Subparagraph a(1) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 + Details
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