Represents the amount of surcharge included in the contributions made to multiemployer plans by the employer.

No definition available.

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

- 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

- 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

- 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

- Definition

Number of employee participants subject to a collective bargaining arrangement to all participants in 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_MultiemployerPlansNumberOfParticipants
Namespace Prefix:	tr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of employee participants subject to a collective bargaining arrangement to all participants in 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_MultiemployerPlansPercentageOfParticipants
Namespace Prefix:	tr_
Data Type:	num:percentItemType
Balance Type:	na
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 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

- 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

- Details

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

- Definition

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is 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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450702-114947

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450691-114947

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 80

-Section 50

-Paragraph 5

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=14450570&loc=SL14450657-114947

+ Details

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

Pension Plans (Details) (Multi-employer defined benefit pension plan, USD $) In Thousands, unless otherwise specified	0 Months Ended		1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 02, 2012	Jan. 02, 2011 item	Jun. 30, 2012	Mar. 30, 2013	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Pension Plans
Percentage of funded status	66.90%	83.60%
Percentage of funded status of current market value of investment	55.60%	70.00%
Number of plan participants		114,224
Percentage of annual compounded surcharge for rehabilitation within ten years						15.00%
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%
Employer contributions to multi-employer defined benefit pension plans				$ 459	$ 406	$ 2,131	$ 2,046
Surcharges included in the employer contributions to multi-employer defined benefit pension plans				43	0
Estimated liability upon withdrawal from plan in current year						$ 37,200
Minimum
Pension Plans
Targeted period in which plan is projected to emerge from critical status						10 years
Active participants
Pension Plans
Number of plan participants		25,480
Percentage of plan participants		22.00%
Retired or separated from service and receiving benefits
Pension Plans
Number of plan participants		54,793
Percentage of plan participants		48.00%
Retired or separated from service and entitled to receive future benefits
Pension Plans
Number of plan participants		33,951
Percentage of plan participants		30.00%