Basis of Presentation	9 Months Ended
Basis of Presentation	Sep. 28, 2014
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements of Kelly Services, Inc. (the “Company,” “Kelly,” “we” or “us”) have been prepared in accordance with Rule 10-01 of Regulation S-X and do not include all the information and notes required by generally accepted accounting principles for complete financial statements. All adjustments, including normal recurring adjustments, have been made which, in the opinion of management, are necessary for a fair statement of the results of the interim periods. The results of operations for such interim periods are not necessarily indicative of results of operations for a full year. The unaudited consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and notes thereto for the fiscal year ended December 29, 2013, included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 13, 2014 (the 2013 consolidated financial statements). The Company’s third fiscal quarter ended on September 28, 2014 (2014) and September 29, 2013 (2013), each of which contained 13 weeks. The corresponding September year to date periods for 2014 and 2013 each contained 39 weeks. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated. During the third quarter of 2013, the Company determined that both cash and equivalents and accrued payroll and related taxes were understated by $4.8 million as of December 30, 2012. The Company determined that the impact of this error on the consolidated balance sheets and consolidated statements of cash flows was not material. As a result of correcting the error in the third quarter of 2013, changes in operating assets and liabilities and net cash from operating activities are both overstated by $4.8 million in the consolidated statements of cash flows for the 39 weeks ended September 29, 2013. Effective with the first quarter of 2014, the project-based legal services business in the Americas PT segment was reclassified to the OCG segment and the prior period was recast to conform to the current presentation.

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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