XML 23 R58.htm IDEA: XBRL DOCUMENT
v3.19.3

Sale of Assets - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Sep. 29, 2019 | Sep. 30, 2018
Sale of Assets [Line Items] |  |  |
Proceeds from sale of assets |  | $ 13.8 | $ 0.0
Land |  |  |
Sale of Assets [Line Items] |  |  |
Proceeds from sale of assets | $ 11.7 |  |
Transfer of customer contracts |  |  |
Sale of Assets [Line Items] |  |  |
Proceeds from sale of assets | $ 2.1 |  |

X
- Definition [Line Items] for Sale of Assets [Table] + References No definition available. + Details
Name: | kelya_SaleofAssetsLineItems
Namespace Prefix: | kelya_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | kelya_SaleofAssetsAxis=us-gaap_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kelya_SaleofAssetsAxis=kelya_TransferofCustomerContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |