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Step Acquisition (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2015
company
Mar. 29, 2014
Dec. 31, 2014
Spanish companies      
Number of Spanish companies 2tr_NumberOfForeignCompaniesConsolidatedInFinancialStatements    
Provision for income taxes $ 4,334us-gaap_IncomeTaxExpenseBenefit $ 7,337us-gaap_IncomeTaxExpenseBenefit  
Spanish companies      
Spanish companies      
Number of Spanish companies   2tr_NumberOfForeignCompaniesConsolidatedInFinancialStatements
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
 
Ownership interest in Spanish companies after step acquisition (as a percent)   50.00%us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
83.00%us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeIncludingSubsequentAcquisitionPercentage
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
Net loss related to acquired companies   529us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
 
Provision for income taxes   2,350us-gaap_IncomeTaxExpenseBenefit
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
 
Amount of subscription for common shares     1,400us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember
Payment for purchase of stock     $ 1,200us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries
/ us-gaap_BusinessAcquisitionAxis
= tr_SpanishCompaniesMember