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Business and Basis of Presentation - Merger Agreement (Details) | Aug. 20, 2012
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Newdex, Inc. | Dex One |
Merger Disclosures [Line Items] |
Merger, number of shares of acquiree common stock to be converted to acquirer common stock | 0.2
Newdex, Inc. | Super Media, Inc. |
Merger Disclosures [Line Items] |
Merger, number of shares of acquiree common stock to be converted to acquirer common stock | 0.4386
Dex Media, Inc. | Dex One |
Merger Disclosures [Line Items] |
Merger, number of shares of acquiree common stock to be converted to acquirer common stock | 0.2
Dex Media, Inc. | Super Media, Inc. |
Merger Disclosures [Line Items] |
Merger, number of shares of acquiree common stock to be converted to acquirer common stock | 0.4386

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- Details
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Data Type: | xbrli:stringItemType
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- Definition Merger, Number of Shares of Acquiree Common Stock to be Converted to Acquirer Common Stock + References No definition available. + Details
Name: | dxm_MergerNumberOfSharesOfAcquireeCommonStockToBeConvertedToAcquirerCommonStock
Namespace Prefix: | dxm_
Data Type: | xbrli:sharesItemType
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