Name:	tbi_WeightedAverageDiscountRateClaimsAndReceivablesAboveDeductibleLimit
Namespace Prefix:	tbi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Weighted average rate applied to the undiscounted amount of workers' compensation claims that are below the established deductible limit to arrive at the present value recorded as of the balance sheet date.

No definition available.

Name:	tbi_WeightedAverageDiscountRateClaimsBelowDeductibleLimit
Namespace Prefix:	tbi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Estimated weighted average period in which claim payments are made and reimbursements from insurance carries are received for workers' compensation claims that are above the established deductible limit as of the balance sheet date.

No definition available.

Name:	tbi_WeightedAveragePeriodClaimPaymentsAndReceivablesAboveDeductibleLimit
Namespace Prefix:	tbi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Estimated weighted average period in which claim payments are made for workers' compensation claims that are below the established deductible limit as of the balance sheet date.

No definition available.

Name:	tbi_WeightedAveragePeriodClaimPaymentsBelowDeductibleLimit
Namespace Prefix:	tbi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of risk retained by the entity for workers' compensation claims, on a per occurrence basis, before the insurance arrangement begins to provide coverage.

No definition available.

Name:	tbi_WorkersCompensationClaimDeductibleLimit
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

Carrying value as of the balance sheet date of reimbursement receivables from insurance carries pertaining to claims incurred of a workers compensation nature that are above the established deductible limit, net of a valuation allowance for reimbursement receivables that are expected to be uncollectible.

No definition available.

Name:	tbi_WorkersCompensationClaimReceivablesNetOfValuationAllowance
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Workers' compensation expense recognized during the period for claims reserves net of changes in discount in non monopolistic jurisdictions; premiums in monopolistic jurisdictions; insurance premiums; changes in the valuation allowance related to receivables from insurance companies; and other miscellaneous expenses.

No definition available.

Name:	tbi_WorkersCompensationExpense
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	tbi_WorkersCompensationInsuranceAndReservesAbstract
Namespace Prefix:	tbi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Workers Compensation Liability Claim Payments Above Deductible Limit, Receivable

No definition available.

Name:	tbi_WorkersCompensationLiabilityClaimPaymentsAboveDeductibleLimitReceivable
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Workers Compensation Liability Claim Payments Above Deductible Limit, Reserve Liability

No definition available.

Name:	tbi_WorkersCompensationLiabilityClaimPaymentsAboveDeductibleLimitReserveLiability
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

A valuation allowance for receivables from insurance carriers for workers' compensation claims incurred above the established deductible limit that are expected to be uncollectible.

No definition available.

Name:	tbi_WorkersCompensationValuationAllowance
Namespace Prefix:	tbi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15(a))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9