XML 20 R48.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Dec. 31, 2013
Subtotal $ 666,590tg_IdentifiableAssetsBySegmentSubtotal $ 689,538tg_IdentifiableAssetsBySegmentSubtotal    
General corporate 48,610tg_GeneralCorporateAssets 49,032tg_GeneralCorporateAssets    
Cash and cash equivalents 55,155us-gaap_CashAndCashEquivalentsAtCarryingValue 50,056us-gaap_CashAndCashEquivalentsAtCarryingValue 45,227us-gaap_CashAndCashEquivalentsAtCarryingValue 52,617us-gaap_CashAndCashEquivalentsAtCarryingValue
Total assets 770,355us-gaap_Assets 788,626us-gaap_Assets    
Film Products        
Total assets 513,231us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= tg_FilmProductsMember
546,210us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= tg_FilmProductsMember
   
Aluminum Extrusions        
Total assets $ 153,359us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= tg_AluminumExtrusionsMember
$ 143,328us-gaap_Assets
/ us-gaap_StatementBusinessSegmentsAxis
= tg_AluminumExtrusionsMember