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SEGMENT AND GEOGRAPHIC INFORMATION: (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
SEGMENT AND GEOGRAPHIC INFORMATION      
Net product sales: $ 539,895us-gaap_SalesRevenueGoodsNet $ 539,627us-gaap_SalesRevenueGoodsNet $ 545,985us-gaap_SalesRevenueGoodsNet
Long-lived assets: 190,081us-gaap_PropertyPlantAndEquipmentNet 196,916us-gaap_PropertyPlantAndEquipmentNet 201,290us-gaap_PropertyPlantAndEquipmentNet
United States      
SEGMENT AND GEOGRAPHIC INFORMATION      
Net product sales: 488,795us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= country_US		 495,082us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= country_US		 499,660us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= country_US
Long-lived assets: 153,444us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US		 160,099us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US		 161,504us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US
Canada and Other      
SEGMENT AND GEOGRAPHIC INFORMATION      
Net product sales: 51,100us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember		 44,545us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember		 46,325us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember
Long-lived assets: $ 36,637us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember		 $ 36,817us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember		 $ 39,786us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= tr_CanadaAndOtherCountriesMember