Business and Basis of Presentation - Agreement and Plan of Merger (Details) (Newdex, Inc.)	Mar. 31, 2013
Dex One
Merger Disclosures [Line Items]
Merger, Percentage of Common Stock Held by Acquiree Shareholders Subsequent to Merger	60.00%
Super Media, Inc.
Merger Disclosures [Line Items]
Merger, Percentage of Common Stock Held by Acquiree Shareholders Subsequent to Merger	40.00%

Merger, Percentage of Common Stock Held by Acquiree Shareholders Subsequent to Merger

No definition available.

Name:	dexo_MergerPercentageOfCommonStockHeldByAcquireeShareholdersSubsequentToMerger
Namespace Prefix:	dexo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant