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Business and Basis of Presentation - Narrative (Details)
 9 Months Ended 3 Months Ended 12 Months Ended
Sep. 30, 2014
consultant
client
Dec. 31, 2013
Dex Guaranteed Actions Service
service
Dec. 31, 2013
Dex Guaranteed Actions Service
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Number of business clients (over 500,000) 500,000    
Number of sales employees (over 2,000) 2,000    
Error Corrections and Prior Period Adjustments Restatement [Line Items]      
Number of service offerings involved in accounting error   1  
Period for revenue recognition     1 month