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MARKETABLE SECURITIES - Marketable Securities, Other Disclosure Items Narrative (Details) (Variable-rate demand notes, USD $) In Millions, unless otherwise specified | Jun. 28, 2013
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Variable-rate demand notes |
Schedule of Available-for-sale Securities [Line Items] |
Investments in Marketable Securities Misclassified as Cash and Cash Equivalents | $ 19.9

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- Definition Investments in highly liquid marketable securities misclassified as cash and cash equivalents + References No definition available. + Details
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Namespace Prefix: | tbi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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