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v2.4.1.9

Debt (Details) Part 1 (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Dec. 31, 2014
Debt Instrument |  |
Total Debt | $ 26,057 us-gaap_DebtAndCapitalLeaseObligations | $ 28,137 us-gaap_DebtAndCapitalLeaseObligations
Less: Current Portion | (3,486)us-gaap_DebtCurrent | (3,566)us-gaap_DebtCurrent
Long-Term Portion | 22,571 us-gaap_LongTermDebtAndCapitalLeaseObligations | 24,571 us-gaap_LongTermDebtAndCapitalLeaseObligations
Committed lines of credit | 125,000 tnc_LineOfCreditFacilityCommittedLinesOfCredit |
Uncommitted lines of credit | 87,146 tnc_LineOfCreditFacilityUncommittedLinesOfCredit |
Letters of Credit Outstanding | 2,409 us-gaap_LettersOfCreditOutstandingAmount |
Bank guarantees | 27 us-gaap_OtherCommitment |
Commitment fees on unused line of credit | 81 us-gaap_LineOfCreditFacilityCommitmentFeeAmount |
Covenant restriction, maximum indebtedness to EBITDA | 3.00 to 1 |
Covenant restriction, minimum EBITDA to interest expense | 3.50 to 1 |
Indebtedness to EBITDA ratio | 0.32 to 1 |
Line of Credit Facility, EBITDA to interest expense ratio | 55.41 to 1 |
Credit facility borrowings, Long-Term |  |
Debt Instrument |  |
Total Debt | 26,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | 28,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Collateralized borrowings |  |
Debt Instrument |  |
Total Debt | 7 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember | 7 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_SecuredDebtMember
Capital lease obligations |  |
Debt Instrument |  |
Total Debt | $ 50 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember | $ 130 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember

X
- Definition Lines of credit that legally bind the lender to provide the funds, rather than giving the lender the option of canceling the credit line based on market conditions. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityCommittedLinesOfCredit
Namespace Prefix: | tnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The maximum Line of credit facility restrictive covenant on indebtedness to EBITDA ratio. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityCovenantRestrictionMaximumIndebtednessToEbitda
Namespace Prefix: | tnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum Line of credit facility restrictive covenant on EBITDA to interest expense ratio. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityCovenantRestrictionMinimumEbitdaToInterestExpense
Namespace Prefix: | tnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The EBITDA to interest expense ratio as of the Balance Sheet date. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityEbitdaToInterestExpenseRatio
Namespace Prefix: | tnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The indebtedness to EBITDA ratio as of the Balance Sheet date. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityIndebtednessToEbitdaRatio
Namespace Prefix: | tnc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Lines of credit that do not legally bind the borrower to take out a loan at a particular time. + References No definition available. + Details
Name: | tnc_LineOfCreditFacilityUncommittedLinesOfCredit
Namespace Prefix: | tnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + 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 210.5-02.19,20) -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 -Article 5 + Details
Name: | us-gaap_DebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of the fee for available but unused credit capacity under the credit facility. + 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: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + 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 210.5-02.22) -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 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |