XML 88 R70.htm IDEA: XBRL DOCUMENT
v3.22.4

Goodwill - Changes in Carrying Value of Goodwill by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jan. 01, 2021
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | [2] | $ 1,628.1 | [1] |  |  |  | $ 1,628.1 | [1] | $ 1,722.2 | [1] | $ 1,225.8 |
Goodwill, accumulated impairment loss |  | 694.2 |  |  |  |  | 694.2 |  | 644.2 |  |  | $ 644.2
Impairment Charge |  |  |  | $ 0.0 | $ 0.0 | $ 0.0 | 50.0 | [2],[3] | 0.0 |  | 66.8 |
Corporate |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | [4] | 126.0 |  |  |  |  | 126.0 |  | 126.0 |  | $ 126.0 |
Goodwill, accumulated impairment loss |  | 278.2 |  |  |  |  | 278.2 |  | 278.2 |  |  | 278.2
Impairment Charge |  |  |  |  |  |  |  |  |  |  |  |
Jefferson Wells |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 55.5 |  |  |  |  | 55.5 |  |  |  |  |
Right Management |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  | 62.1 |  |  |
Goodwill, accumulated impairment loss |  | 235.2 |  |  |  |  | 235.2 |  | 235.2 |  |  | 235.2
Netherlands Subsegment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Impairment Charge |  |  |  |  |  |  | 50.0 |  |  |  |  |
Netherlands Subsegment [Member] | Jefferson Wells |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 55.1 |  |  |  |  | 55.1 |  | 74.3 |  |  |
Americas | United States |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 1,006.5 |  |  |  |  | 1,006.5 |  | 1,013.0 |  |  | 490.2
Americas | United States | Jefferson Wells |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 1,085.3 |  |  |  |  | 1,085.3 |  | 1,091.7 |  |  |
Southern Europe | France |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 79.5 |  |  |  |  | 79.5 |  | 110.7 |  |  |
Southern Europe | France | Right Management |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 73.3 |  |  |  |  | 73.3 |  | 68.2 |  |  | 73.3
Southern Europe | Italy |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 3.7 |  |  |  |  | 3.7 |  | 3.9 |  |  | 4.2
Northern Europe |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, accumulated impairment loss |  | 177.0 |  |  |  |  | 177.0 |  | 127.0 |  |  | 127.0
Northern Europe | Netherlands Subsegment [Member] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | 55.1 |  |  |  |  | 55.1 |  |  |  |  |
Impairment Charge |  | 50.0 |  |  |  |  |  |  |  |  |  |
APME |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, accumulated impairment loss |  | $ 3.8 |  |  |  |  | $ 3.8 |  | $ 3.8 |  |  | $ 3.8
[1] | Balances were net of accumulated impairment loss of $694.2 and $644.2 as of December 31, 2022 and 2021, respectively.
[2] | Balances were net of accumulated impairment loss of $644.2 ($127.0 related to Northern Europe, $3.8 related to APME, $235.2 related to Right Management and $278.2 related to corporate) as of both January 1, 2021 and December 31, 2021; and $694.2 ($177.0 related to Northern Europe, $3.8 related to APME, $235.2 related to Right Management and $278.2 related to Corporate) as of December 31, 2022.
[3] | The 2022 impairment charge of $50.0 relates to our Netherlands reporting unit, which was recorded during the fourth quarter of 2022. See Note 1 to the Consolidated Financial Statements for further information.
[4] | The majority of the Corporate balance as of December 31, 2021 and 2022 relates to goodwill attributable to our acquisitions of Right Management ($62.1) and Jefferson Wells ($55.5). Jefferson Wells is part of the United States reporting unit. Right Management is allocated to the reporting units of the countries in which Right Management operates. For purposes of monitoring our total assets by segment, we do not allocate the Corporate balance to the respective reportable segments as this is commensurate with how we operate our business. We do, however, include these balances within the appropriate reporting units for our goodwill impairment testing. See table below for the breakout of goodwill balances by reporting unit

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=man_JeffersonWellsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=man_RightManagementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=man_NetherlandsSubsegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=man_AmericasSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=man_UnitedStatesSubsegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=man_SouthernEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=man_FranceSubsegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=man_ItalySubsegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=man_NorthernEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=man_ApmeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |