XML 31 R78.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Accrued Expenses (Schedule Of Reconciliation Of Beginning And Ending Balances Of Accrued Expenses Associated With Asset Impairments And Costs Associated With Exit And Disposal Activities) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 687 us-gaap_RestructuringReserve |  | $ 881 us-gaap_RestructuringReserve |  | $ 197 us-gaap_RestructuringReserve |
Charges | 3,026 us-gaap_RestructuringCharges |  | 1,412 us-gaap_RestructuringCharges |  | 4,894 us-gaap_RestructuringCharges |
Cash spend | (3,039)us-gaap_PaymentsForRestructuring |  | (1,434)us-gaap_PaymentsForRestructuring |  | (3,133)us-gaap_PaymentsForRestructuring |
Charges against assets | (227)tg_RestructuringReserveChargedAgainstAssets |  | (172)tg_RestructuringReserveChargedAgainstAssets |  | (1,077)tg_RestructuringReserveChargedAgainstAssets |
Ending balance | 447 us-gaap_RestructuringReserve |  | 687 us-gaap_RestructuringReserve |  | 881 us-gaap_RestructuringReserve |
Severance |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Beginning balance | 331 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 296 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 197 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |
Charges | 2,668 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 671 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 1,562 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |
Cash spend | (2,753)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | (636)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | (1,463)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |
Ending balance | 246 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 331 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |  | 296 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_SeveranceMember |
Asset Impairments |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Beginning balance | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |
Charges | 227 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 172 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 1,077 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |
Charges against assets | (227)tg_RestructuringReserveChargedAgainstAssets / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | (172)tg_RestructuringReserveChargedAgainstAssets / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | (1,077)tg_RestructuringReserveChargedAgainstAssets / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |
Ending balance | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |  | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_LongLivedAssetImpairmentMember |
Other |  |  |  |  |  |
Restructuring Reserve [Roll Forward] |  |  |  |  |  |
Beginning balance | 356 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | 585 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | 0 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1]
Charges | 131 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | 569 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | 2,255 us-gaap_RestructuringCharges / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1]
Cash spend | (286)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | (798)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | (1,670)us-gaap_PaymentsForRestructuring / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1]
Ending balance | $ 201 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | $ 356 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1] | $ 585 us-gaap_RestructuringReserve / us-gaap_RestructuringCostAndReserveAxis = tg_OtherAccruedRestructuringChargesMember | [1]
[1] | Other includes other shutdown-related costs associated with the shutdown of the Company’s aluminum extrusions manufacturing facility in Kentland, Indiana.

X
- Definition Restructuring reserve charged against assets + References No definition available. + Details
Name: | tg_RestructuringReserveChargedAgainstAssets
Namespace Prefix: | tg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_PaymentsForRestructuring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=tg_LongLivedAssetImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=tg_OtherAccruedRestructuringChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=tg_SeveranceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |