XML 49 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

FAIR VALUE MEASUREMENT (Details) - USD ($) $ in Thousands | Jul. 01, 2018 | Dec. 31, 2017 | Jul. 02, 2017 | Jan. 01, 2017
--- | --- | --- | --- | ---
Fair Value Measurement [Line Items] |  |  |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | $ 81,990 | $ 73,831 | $ 88,691 | $ 103,222
Deferred compensation mutual funds | 24,384 | 22,428 |  |
Restricted investments classified as held-to-maturity | 164,632 | 172,238 |  |
Municipal debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 78,190 | 83,366 |  |
Corporate debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 82,238 | 83,791 |  |
Agency mortgage-backed securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 3,229 | 4,062 |  |
U.S. government and agency securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 975 | 1,019 |  |
Total Fair Value |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Cash and cash equivalents | 33,408 | 28,780 |  |
Total Fair Value | Restricted Assets |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted cash and cash equivalents | 48,582 | 45,051 |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 81,990 | 73,831 |  |
Deferred compensation mutual funds | 24,384 | 22,428 |  |
Restricted investments classified as held-to-maturity | 164,632 | 172,238 |  |
Total Fair Value | Restricted Assets | Municipal debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 78,190 | 83,366 |  |
Total Fair Value | Restricted Assets | Corporate debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 82,238 | 83,791 |  |
Total Fair Value | Restricted Assets | Agency mortgage-backed securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 3,229 | 4,062 |  |
Total Fair Value | Restricted Assets | U.S. government and agency securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 975 | 1,019 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Cash and cash equivalents | 33,408 | 28,780 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted Assets |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted cash and cash equivalents | 48,582 | 45,051 |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 81,990 | 73,831 |  |
Deferred compensation mutual funds | 24,384 | 22,428 |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted Assets | Municipal debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted Assets | Corporate debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted Assets | Agency mortgage-backed securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Restricted Assets | U.S. government and agency securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Significant Other Observable Inputs (Level 2) |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Significant Other Observable Inputs (Level 2) | Restricted Assets |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted cash and cash equivalents | 0 | 0 |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 |  |
Deferred compensation mutual funds | 0 | 0 |  |
Restricted investments classified as held-to-maturity | 164,632 | 172,238 |  |
Significant Other Observable Inputs (Level 2) | Restricted Assets | Municipal debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 78,190 | 83,366 |  |
Significant Other Observable Inputs (Level 2) | Restricted Assets | Corporate debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 82,238 | 83,791 |  |
Significant Other Observable Inputs (Level 2) | Restricted Assets | Agency mortgage-backed securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 3,229 | 4,062 |  |
Significant Other Observable Inputs (Level 2) | Restricted Assets | U.S. government and agency securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 975 | 1,019 |  |
Significant Unobservable Inputs (Level 3) |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 0 |  |
Significant Unobservable Inputs (Level 3) | Restricted Assets |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted cash and cash equivalents | 0 | 0 |  |
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | 0 | 0 |  |
Deferred compensation mutual funds | 0 | 0 |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Significant Unobservable Inputs (Level 3) | Restricted Assets | Municipal debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Significant Unobservable Inputs (Level 3) | Restricted Assets | Corporate debt securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Significant Unobservable Inputs (Level 3) | Restricted Assets | Agency mortgage-backed securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | 0 | 0 |  |
Significant Unobservable Inputs (Level 3) | Restricted Assets | U.S. government and agency securities |  |  |  |
Fair Value Measurement [Line Items] |  |  |  |
Restricted investments classified as held-to-maturity | $ 0 | $ 0 |  |

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3521-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 + Details
Name: | us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DeferredCompensationPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 + Details
Name: | us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | tbi_RestrictedOrUnrestrictedStatusOfAssetsAxis=tbi_RestrictedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |