XML 74 R56.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Segment Reporting Schedule of Revenue by Geographic Location (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Disaggregation of Revenue [Line Items] |  |
Net Sales | $ 249,921 | $ 212,720
UNITED STATES |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 159,562 | 129,901
PE Films |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 93,249 | 86,411
PE Films | Personal Care Materials [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 61,644 | 61,299
PE Films | Surface Protection Films [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 29,815 | 23,441
PE Films | Films For Other Markets [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 1,790 | 1,672
PE Films | Film Products Subtotal [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 93,249 | 86,412
Flexible Packaging Films [Member] [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 28,437 | 26,710
Aluminum Extrusions |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 128,235 | 99,599
Aluminum Extrusions | Nonresidential Building And Construction [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 65,280 | 52,210
Aluminum Extrusions | Consumer Durables [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 15,189 | 12,097
Aluminum Extrusions | Distribution [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 10,971 | 6,334
Aluminum Extrusions | Automotive [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 9,673 | 10,174
Aluminum Extrusions | Residential Building And Construction [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 9,601 | 7,272
Aluminum Extrusions | Aluminum Extrusions Subtotal [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 128,235 | 99,598
Aluminum Extrusions | Machinery and Equipment BNL [Domain] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 9,094 | 7,205
Aluminum Extrusions | Electrical [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 8,427 | 4,306
Exports From United States [Member] | Asia [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 23,592 | 18,722
Exports From United States [Member] | CANADA |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 13,298 | 13,092
Exports From United States [Member] | Europe [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 1,822 | 2,358
Exports From United States [Member] | Latin America [Member] |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 3,052 | 3,730
Operations Outside United States [Member] | BRAZIL |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 23,151 | 21,360
Operations Outside United States [Member] | NETHERLANDS |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 11,928 | 12,760
Operations Outside United States [Member] | HUNGARY |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 8,818 | 5,191
Operations Outside United States [Member] | CHINA |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | 2,274 | 3,405
Operations Outside United States [Member] | INDIA |  |
Disaggregation of Revenue [Line Items] |  |
Net Sales | $ 2,424 | $ 2,201

X
- Definition Aggregrate revenue during the period from the sales of goods in the normal course of business, after deducting returns, allowances, discounts, and charges for outbound freight. + References No definition available. + Details
Name: | tg_NetSales
Namespace Prefix: | tg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tg_PEFilmsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_PersonalCareMaterialsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_SurfaceProtectionFilmsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_FilmsForOtherMarketsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_FilmProductsSubtotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tg_FlexiblePackagingFilmsMemberDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tg_AluminumExtrusionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_NonresidentialBuildingAndConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_ConsumerDurablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_DistributionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_AutomotiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_ResidentialBuildingAndConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_AluminumExtrusionsSubtotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_MachineryandEquipmentBNLDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ProductOrServiceAxis=tg_ElectricalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tg_ExportsFromUnitedStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_LatinAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=tg_OperationsOutsideUnitedStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_NL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_HU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_IN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |