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Deconsolidation of Subsidiaries - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Jan. 03, 2014
Effects of Deconsolidation of Subsidiaries [Line Items]        
Gain on deconsolidation   $ 13,647us-gaap_DeconsolidationGainOrLossAmount    
Net assets of entities contributed to Alma Career Oy   4,200us-gaap_TransferToInvestments    
Retained noncontrolling investment at fair value   24,800us-gaap_InvestmentOwnedAtFairValue    
Accumulated unrealized currency translation loss related to the net assets of the subsidiaries   (1,819)us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyLossGainOnReclassifiedOfEarningsNetOfTax 23,109us-gaap_TranslationAdjustmentFunctionalToReportingCurrencyLossGainOnReclassifiedOfEarningsNetOfTax  
Net gain on deconsolidation 11,828mww_DeconsolidationGainLossNetAmount 11,828mww_DeconsolidationGainLossNetAmount     
Finland        
Effects of Deconsolidation of Subsidiaries [Line Items]        
Percentage of equity investment       25.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ invest_InvestmentGeographicRegionAxis
= country_FI
Finland | Alma Media Corporation        
Effects of Deconsolidation of Subsidiaries [Line Items]        
Percentage of equity investment       75.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ invest_InvestmentGeographicRegionAxis
= country_FI
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= mww_AlmaMediaCorporationMember
Eastern Europe and the Baltics | Alma Career Oy        
Effects of Deconsolidation of Subsidiaries [Line Items]        
Percentage of equity investment   15.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ invest_InvestmentGeographicRegionAxis
= mww_EasternEuropeAndBalticsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= mww_AlmaCareerOyMember
   
Maximum percentage of equity investment   20.00%mww_EquityMethodInvestmentOwnershipPercentageMaximum
/ invest_InvestmentGeographicRegionAxis
= mww_EasternEuropeAndBalticsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= mww_AlmaCareerOyMember
   
Additional investments in equity method investee   $ 6,500us-gaap_PaymentsToAcquireEquityMethodInvestments
/ invest_InvestmentGeographicRegionAxis
= mww_EasternEuropeAndBalticsMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= mww_AlmaCareerOyMember