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Pension Plans (Details) (Multi-employer defined benefit pension plan, USD $) In Thousands, unless otherwise specified | 0 Months Ended | 1 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 02, 2012 | Jan. 02, 2011 | Jun. 30, 2012 | Jun. 29, 2013 | Dec. 31, 2012
Multi-employer defined benefit pension plan |  |  |  |  |
Pension Plans |  |  |  |  |
Percentage of funded status | 66.90% | 83.60% |  |  |
Percentage of funded status of current market value of investment | 55.60% | 70.00% |  |  |
Projection period beyond which plan is projected to emerge from critical status, under the Rehabilitant Plan |  |  |  |  | 30 years
Percentage of compounded annual surcharge each year |  |  |  | 5.00% |
Percentage of interim surcharge |  |  | 5.00% |  |
Estimated liability upon withdrawal from plan in current year |  |  |  |  | $ 37,200

X
- Definition Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
Name: | tr_MultiemployerPlansEstimatedLiabilityUponWithdrawalPlanObligation
Namespace Prefix: | tr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents percentage of funded status of the multiemployer plan. + References No definition available. + Details
Name: | tr_MultiemployerPlansFundedPercentage
Namespace Prefix: | tr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents percentage of funded status of current market value of investment of the multiemployer plan. + References No definition available. + Details
Name: | tr_MultiemployerPlansFundedPercentageOfCurrentMarketValueOfInvestment
Namespace Prefix: | tr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents employer payable additional surcharge to the pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
Name: | tr_MultiemployerPlansSurchargeAdditionalPercentage
Namespace Prefix: | tr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents employer payable surcharge to the pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References No definition available. + Details
Name: | tr_MultiemployerPlansSurchargePercentage
Namespace Prefix: | tr_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the projection period beyond which the plan is projected to emerge from critical status. + References No definition available. + Details
Name: | tr_MultiemployerPlansTermOfProjectionBeyondWhichPlanIsProjectedToEmergeFromCriticalStatus
Namespace Prefix: | tr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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