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Document and Entity Information | Feb. 18, 2021
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Entity Information [Line Items] |
Document Type | 8-K
Document Period End Date | Feb. 18, 2021
Entity Registrant Name | KELLY SERVICES, INC.
Entity Incorporation, State or Country Code | DE
Entity File Number | 0-1088
Entity Tax Identification Number | 38-1510762
Entity Address, Address Line One | 999 West Big Beaver Road
Entity Address, City or Town | Troy
Entity Address, State or Province | MI
Entity Address, Postal Zip Code | 48084
City Area Code | 248
Local Phone Number | 362-4444
Written Communications | false
Soliciting Material | false
Pre-commencement Tender Offer | false
Entity Emerging Growth Company | false
Pre-commencement Issuer Tender Offer | false
Entity Central Index Key | 0000055135
Amendment Flag | false
NASDAQ Global Market | Class A Common |
Entity Information [Line Items] |
Title of 12(b) Security | Class A Common
Trading Symbol | KELYA
Security Exchange Name | NASDAQ
NASDAQ Global Market | Class B Common |
Entity Information [Line Items] |
Title of 12(b) Security | Class B Common
Trading Symbol | KELYB
Security Exchange Name | NASDAQ

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