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Contingencies (Details) | 3 Months Ended
--- | ---
Jun. 30, 2013 | Mar. 31, 2013
Contingencies [Abstract] |  |
French contingency claim period | 5 years | 10 years

X
- Definition Claim period for contingencies in years. + References No definition available. + Details
Name: | man_FrenchContingencyClaimPeriod
Namespace Prefix: | man_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration