XML 43 R102.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Segment Data - Schedule of Segment Data (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services | $ 5,196,600,000 | $ 5,248,900,000 | $ 5,373,100,000 | $ 5,044,900,000 | $ 5,393,200,000 | $ 5,418,700,000 | $ 5,656,900,000 | $ 5,522,400,000 |  | $ 20,863,500,000 | $ 21,991,200,000 | $ 21,034,300,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 860,600,000 | 941,800,000 | 932,200,000
Corporate expenses |  |  |  |  |  |  |  |  |  | (121,900,000) | (110,000,000.0) | (108,400,000)
Impairment charge |  | $ 0 |  |  |  | $ 0 |  |  | $ 0 | (64,000,000.0) |  |
Intangible asset amortization expense |  |  |  |  |  |  |  |  |  | (29,800,000) | (35,100,000) | (34,600,000)
Interest and other income (expenses), net |  |  |  |  |  |  |  |  |  | 40,600,000 | (42,000,000.0) | (51,900,000)
Earnings before income taxes |  |  |  |  |  |  |  |  |  | 685,500,000 | 754,700,000 | 737,300,000
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 77,200,000 | 85,800,000 | 84,400,000
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 50,500,000 | 1,200,000 | 15,000,000.0
Total Assets | 9,223,800,000 |  |  |  | 8,519,800,000 |  |  |  |  | 9,223,800,000 | 8,519,800,000 | 8,883,600,000
Equity Investments | 97,800,000 |  |  |  | 161,400,000 |  |  |  |  | 97,800,000 | 161,400,000 | 158,700,000
Long-Lived Assets | 150,900,000 |  |  |  | 160,000,000.0 |  |  |  |  | 150,900,000 | 160,000,000.0 | 161,300,000
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 48,700,000 | 60,300,000 | 53,900,000
Corporate |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 100,000 | 100,000 | 200,000
Total Assets | 489,400,000 |  |  |  | 520,900,000 |  |  |  |  | 489,400,000 | 520,900,000 | 499,200,000
Equity Investments | 97,500,000 |  |  |  | 1,000,000.0 |  |  |  |  | 97,500,000 | 1,000,000.0 | 1,000,000.0
Long-Lived Assets | 200,000 |  |  |  | 100,000 |  |  |  |  | 200,000 | 100,000 | 100,000
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 100,000 | 100,000 | 0
Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Intangible asset amortization expense |  |  |  |  |  |  |  |  |  | 29,800,000 | 35,100,000 | 34,600,000
Americas |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 4,182,300,000 | 4,159,300,000 | 4,216,400,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 186,300,000 | 203,900,000 | 213,300,000
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Americas | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 10,300,000 | 10,400,000 | 11,800,000
Total Assets | 2,487,000,000.0 |  |  |  | 2,168,900,000 |  |  |  |  | 2,487,000,000.0 | 2,168,900,000 | 2,110,600,000
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 28,000,000.0 |  |  |  | 25,600,000 |  |  |  |  | 28,000,000.0 | 25,600,000 | 26,700,000
Americas | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 12,600,000 | 10,400,000 | 9,100,000
Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 9,166,400,000 | 9,371,600,000 | 8,657,000,000.0
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 454,600,000 | 467,600,000 | 443,900,000
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 47,400,000 | 1,500,000 | 15,000,000.0
Southern Europe | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 20,400,000 | 20,700,000 | 18,800,000
Total Assets | 3,957,100,000 |  |  |  | 3,711,400,000 |  |  |  |  | 3,957,100,000 | 3,711,400,000 | 3,786,000,000.0
Equity Investments | 300,000 |  |  |  | 158,100,000 |  |  |  |  | 300,000 | 158,100,000 | 157,600,000
Long-Lived Assets | 75,000,000.0 |  |  |  | 77,600,000 |  |  |  |  | 75,000,000.0 | 77,600,000 | 77,100,000
Southern Europe | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 19,800,000 | 26,200,000 | 25,700,000
Northern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 4,691,300,000 | 5,370,500,000 | 5,306,400,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 67,100,000 | 122,700,000 | 140,100,000
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Northern Europe | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Impairment charge |  |  |  |  |  |  |  |  |  | (60,200,000) |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 9,500,000 | 11,000,000.0 | 10,600,000
Total Assets | 1,470,600,000 |  |  |  | 1,237,000,000.0 |  |  |  |  | 1,470,600,000 | 1,237,000,000.0 | 1,569,000,000.0
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 27,100,000 |  |  |  | 29,900,000 |  |  |  |  | 27,100,000 | 29,900,000 | 28,000,000.0
Northern Europe | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 7,600,000 | 16,600,000 | 11,800,000
APME |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 2,627,200,000 | 2,890,300,000 | 2,636,400,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 122,600,000 | 114,800,000 | 98,900,000
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 3,100,000 | (300,000) | 0
APME | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Impairment charge |  |  |  |  |  |  |  |  |  | (3,800,000) |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 5,600,000 | 5,700,000 | 4,700,000
Total Assets | 707,600,000 |  |  |  | 754,000,000.0 |  |  |  |  | 707,600,000 | 754,000,000.0 | 780,700,000
Equity Investments | 0 |  |  |  | 2,300,000 |  |  |  |  | 0 | 2,300,000 | 100,000
Long-Lived Assets | 18,400,000 |  |  |  | 21,500,000 |  |  |  |  | 18,400,000 | 21,500,000 | 21,400,000
APME | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 8,000,000.0 | 6,800,000 | 6,300,000
Right Management |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 196,300,000 | 199,500,000 | 218,100,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 30,000,000.0 | 32,800,000 | 36,000,000.0
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Right Management | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 1,500,000 | 2,800,000 | 3,700,000
Total Assets | 112,100,000 |  |  |  | 127,600,000 |  |  |  |  | 112,100,000 | 127,600,000 | 138,100,000
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 2,200,000 |  |  |  | 5,300,000 |  |  |  |  | 2,200,000 | 5,300,000 | 8,000,000.0
Right Management | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 600,000 | 200,000 | 1,000,000.0
United States | Americas |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 2,507,000,000.0 | 2,522,300,000 | 2,659,000,000.0
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
United States | Americas | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 8,000,000.0 | 8,200,000 | 9,300,000
Total Assets | 2,107,800,000 |  |  |  | 1,827,400,000 |  |  |  |  | 2,107,800,000 | 1,827,400,000 | 1,781,400,000
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 20,000,000.0 |  |  |  | 19,600,000 |  |  |  |  | 20,000,000.0 | 19,600,000 | 20,600,000
United States | Americas | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 8,100,000 | 7,600,000 | 6,700,000
Other Americas | Americas |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 1,675,300,000 | 1,637,000,000.0 |
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Other Americas | Americas | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 2,300,000 | 2,200,000 | 2,500,000
Total Assets | 379,200,000 |  |  |  | 341,500,000 |  |  |  |  | 379,200,000 | 341,500,000 | 329,200,000
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 8,000,000.0 |  |  |  | 6,000,000.0 |  |  |  |  | 8,000,000.0 | 6,000,000.0 | 6,100,000
Other Americas | Americas | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 4,500,000 | 2,800,000 | 2,400,000
France | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 5,459,700,000 | 5,827,700,000 |
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
France | Southern Europe | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 13,700,000 | 14,000,000.0 | 12,300,000
Total Assets | 2,722,700,000 |  |  |  | 2,729,700,000 |  |  |  |  | 2,722,700,000 | 2,729,700,000 | 2,753,100,000
Equity Investments | 0 |  |  |  | 0 |  |  |  |  | 0 | 0 | 0
Long-Lived Assets | 46,300,000 |  |  |  | 49,200,000 |  |  |  |  | 46,300,000 | 49,200,000 | 47,900,000
France | Southern Europe | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 12,800,000 | 18,100,000 | 15,200,000
Italy | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 1,506,500,000 | 1,670,600,000 |
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | (100,000) | (200,000) | 0
Italy | Southern Europe | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 1,800,000 | 1,900,000 | 1,800,000
Total Assets | 463,400,000 |  |  |  | 405,000,000.0 |  |  |  |  | 463,400,000 | 405,000,000.0 | 436,700,000
Equity Investments | 300,000 |  |  |  | 300,000 |  |  |  |  | 300,000 | 300,000 | 400,000
Long-Lived Assets | 5,200,000 |  |  |  | 5,000,000.0 |  |  |  |  | 5,200,000 | 5,000,000.0 | 4,900,000
Italy | Southern Europe | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 2,100,000 | 2,200,000 | 1,700,000
Other Southern Europe | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 2,200,200,000 | 1,873,300,000 |
Earnings from Equity Investments |  |  |  |  |  |  |  |  |  | 47,500,000 | 1,700,000 | 15,000,000.0
Other Southern Europe | Southern Europe | Reportable segments |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization Expense |  |  |  |  |  |  |  |  |  | 4,900,000 | 4,800,000 | 4,700,000
Total Assets | 771,000,000.0 |  |  |  | 576,700,000 |  |  |  |  | 771,000,000.0 | 576,700,000 | 596,200,000
Equity Investments | 0 |  |  |  | 157,800,000 |  |  |  |  | 0 | 157,800,000 | 157,200,000
Long-Lived Assets | $ 23,500,000 |  |  |  | $ 23,400,000 |  |  |  |  | 23,500,000 | 23,400,000 | 24,300,000
Other Southern Europe | Southern Europe | Segment Reconciling Items |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  | 4,900,000 | 5,900,000 | 8,800,000
Reportable subsegments | United States | Americas |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 113,200,000 | 130,800,000 | 152,100,000
Reportable subsegments | Other Americas | Americas |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 1,675,300,000 | 1,637,000,000.0 | 1,557,400,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 73,100,000 | 73,100,000 | 61,200,000
Reportable subsegments | France | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 5,459,700,000 | 5,827,700,000 | 5,477,200,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 284,300,000 | 290,400,000 | 280,000,000.0
Reportable subsegments | Italy | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 1,506,500,000 | 1,670,600,000 | 1,475,900,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | 102,600,000 | 111,100,000 | 104,500,000
Reportable subsegments | Other Southern Europe | Southern Europe |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues from Services |  |  |  |  |  |  |  |  |  | 2,200,200,000 | 1,873,300,000 | 1,703,900,000
Operating Unit Profit |  |  |  |  |  |  |  |  |  | $ 67,700,000 | $ 66,100,000 | $ 59,400,000

X
- Definition Addition to long-lived assets. + References No definition available. + Details
Name: | man_AdditionToLongLivedAssets
Namespace Prefix: | man_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sum of interest income and expense, foreign exchange gains and losses and other miscellaneous non-operating income and expenses. + References No definition available. + Details
Name: | man_InterestAndOtherNonOperatingExpenses
Namespace Prefix: | man_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Operating unit profit (loss) is equal to segment revenues less cost of services and branch and national headquarters operating costs. This profit measure does not include goodwill and intangible asset impairment charges or amortization of intangibles related to acquisitions, interest and other income and expense amounts or income taxes. + References No definition available. + Details
Name: | man_OperatingUnitProfitLoss
Namespace Prefix: | man_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: 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 http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
Name: | us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 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 http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_GeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&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 http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 3: 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 http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_MaterialReconcilingItemsMember
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: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
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_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: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=man_RightManagementMember
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_SubsegmentsAxis=man_OtherAmericasReportableSegmentMember
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_SubsegmentsAxis=man_OtherSouthernEuropeReportableSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsConsolidationItemsAxis=us-gaap_ReportableSubsegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |