XML 70 R49.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Income Taxes [Line Items] |  |
Deferred Tax Benefit Expense Valuation Allowance Adj Capital Loss Carryforwards | $ 300 | $ 200
Income Tax Holiday, Income Tax Benefits Per Share |  | $ 0.00
BrazilianTaxCreditDeductionPeriod | 24 months |
Income Tax Holiday, Aggregate Dollar Amount |  | $ 100
Effective Income Tax Rate Reconciliation, Percent | 35.20% | 35.60%
Terphane Ltda |  |
Income Taxes [Line Items] |  |
Current Effective Tax Rate Reconciliation Social Contribution On Income |  | 9.00%
Current Effective Tax Rate Excluding Social Contribution On Income |  | 6.25%
Current Effective Tax Rate Including Social Contribution On Income |  | 15.25%
Brazil |  |
Income Taxes [Line Items] |  |
Effective income tax rate reconciliation social contribution on income |  | 9.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income |  | 25.00%
Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income |  | 34.00%
Excess Capital Losses From Investments And Other Related Items [Member] |  |
Income Taxes [Line Items] |  |
Deferred Tax Assets, Valuation Allowance | $ 11,100 |

X
- Definition Brazilian Tax Credit Deduction Period + References No definition available. + Details
Name: | tg_BrazilianTaxCreditDeductionPeriod
Namespace Prefix: | tg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Current Effective Tax Rate Excluding Social Contribution On Income + References No definition available. + Details
Name: | tg_CurrentEffectiveTaxRateExcludingSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Current Effective Tax Rate Including Social Contribution On Income + References No definition available. + Details
Name: | tg_CurrentEffectiveTaxRateIncludingSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Current Effective Tax Rate Reconciliation Social Contribution On Income + References No definition available. + Details
Name: | tg_CurrentEffectiveTaxRateReconciliationSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Deferred tax expense (benefit) related to a valuation allowance associated with previously recorded capital losses on certain investments + References No definition available. + Details
Name: | tg_DeferredTaxBenefitExpenseValuationAllowanceAdjCapitalLossCarryforwards
Namespace Prefix: | tg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Excluding Social Contribution On Income + References No definition available. + Details
Name: | tg_EffectiveIncomeTaxRateReconciliationFederalStatutoryTaxRateExcludingSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effective Income Tax Rate Reconciliation Federal Statutory Tax Rate Including Social Contribution On Income + References No definition available. + Details
Name: | tg_EffectiveIncomeTaxRateReconciliationFederalStatutoryTaxRateIncludingSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Effective income tax rate reconciliation social contribution on income. + References No definition available. + Details
Name: | tg_EffectiveIncomeTaxRateReconciliationSocialContributionOnIncome
Namespace Prefix: | tg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income Taxes [Line Items] + References No definition available. + Details
Name: | tg_IncomeTaxesLineItems
Namespace Prefix: | tg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 11.C) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330215-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 11 -Section C + Details
Name: | us-gaap_IncomeTaxHolidayAggregateDollarAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Per share amount effect of the income tax benefit resulting from the income tax holidays granted by taxing jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 11.C) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330215-122817 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 11 -Section C + Details
Name: | us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=tg_TerphaneLtdaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=country_BR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationAllowanceByDeferredTaxAssetAxis=tg_ExcessCapitalLossesFromInvestmentsAndOtherRelatedItemsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |