Plan assets of a multiemployer plan, as a percentage of projected benefit obligation.

No definition available.

Name:	tr_MultiemployerPlanFundedStatusAsPercent
Namespace Prefix:	tr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Estimated amount of the obligation that would be recognized due to 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

- Definition

Represents the targeted period in which the plan is projected to emerge from critical status.

+ References

No definition available.

+ Details

Name:	tr_MultiemployerPlansPeriodInWhichItIsNotFeasibleToEmergeFromCriticalStatus
Namespace Prefix:	tr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

Represents employer payable compounded annual surcharge for rehabilitation within a specified period 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_MultiemployerPlansSurchargePercentageForRehabilitationInSpecifiedTerm
Namespace Prefix:	tr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

The portion of the entity's pension expense for the multiemployer plan that represents an increase in the surcharge, during the period.

+ References

No definition available.

+ Details

Name:	tr_MultiemployerPlanSurchargeIncreaseDuringPeriod
Namespace Prefix:	tr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percent of the participants in the plan who fit certain criteria.

+ References

No definition available.

+ Details

Name:	tr_PensionPlanPercentageOfParticipantsAsPercent
Namespace Prefix:	tr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

+ Details

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_PensionAndOtherPostretirementBenefitExpenseAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_MultiemployerPlansPensionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ValuationTechniqueAxis=tr_ActuariallyDeterminedValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Pension PLANS: (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 29, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014
Actuarially Determined Valuation Technique [Member] \| Scenario, Adjustment [Member]
Pension plans
Percentage of funded status			65.11%	66.41%	66.86%
Multi-employer defined benefit pension plan
Pension Plans
Percentage of annual compounded surcharge for rehabilitation within ten years	5.00%
Percentage of interim surcharge	5.00%
Projection period beyond which plan is projected to emerge from critical status, under the Rehabilitant Plan	30 years
Rehabilitation period	10 years
Estimated liability upon withdrawal from plan				37,200		$ 56,400
Pension plans
Pension expense	552	579
Increase in surcharge	$ 96	$ 72
Multi-employer defined benefit pension plan \| Market Approach Valuation Technique [Member] \| Scenario, Adjustment [Member]
Pension plans
Percentage of funded status			60.20%	55.30%
Multi-employer defined benefit pension plan \| Active participants \| Scenario, Adjustment [Member]
Pension plans
Percentage of participants			20.80%
Multi-employer defined benefit pension plan \| Retired or separated from service and receiving benefits \| Scenario, Adjustment [Member]
Pension plans
Percentage of participants			51.40%
Multi-employer defined benefit pension plan \| Retired or separated from service and entitled to receive future benefits \| Scenario, Adjustment [Member]
Pension plans
Percentage of participants			27.80%