Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

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Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

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Amount of loss contingency liability.

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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Contingencies - Narrative (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended
	Apr. 30, 2014	Dec. 29, 2013	Dec. 28, 2014
Loss Contingencies [Line Items]
Accrual for litigation costs		$ 6.9	$ 5.7
Estimated insurance recoveries		13.4us-gaap_EstimatedInsuranceRecoveries	11.5us-gaap_EstimatedInsuranceRecoveries
Judgement Against Jefferson Parish School Board And Kelly Service
Loss Contingencies [Line Items]
Loss contingency damages awarded		4.4
Litigation Settlement, Amount	(1.00)
Estimated insurance recoveries		3.1	1.7
Kelly Services Share
Loss Contingencies [Line Items]
Loss contingency damages awarded			2.7
Parent Company \| Judgement Against Jefferson Parish School Board And Kelly Service
Loss Contingencies [Line Items]
Litigation Settlement, Amount	(0.25)
Primary Insurer \| Judgement Against Jefferson Parish School Board And Kelly Service
Loss Contingencies [Line Items]
Litigation Settlement, Amount	$ (0.75)