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v2.4.1.9

Principal Activities and Organization - Additional Information (Detail) | 0 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 19, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Oct. 02, 2014
Organization And Principal Business [Line Items] |  |  |  |
Reverse stock split ratio | 0.2 us-gaap_StockholdersEquityNoteStockSplitConversionRatio1 |  |  |
Common stock, shares authorized |  | 200,000,000 us-gaap_CommonStockSharesAuthorized | 200,000,000 us-gaap_CommonStockSharesAuthorized |
Preferred shares, authorized | 10,000,000 us-gaap_PreferredStockSharesAuthorized | 10,000,000 us-gaap_PreferredStockSharesAuthorized | 10,000,000 us-gaap_PreferredStockSharesAuthorized |
Reverse Stock Split [Member] |  |  |  |
Organization And Principal Business [Line Items] |  |  |  |
Common stock, shares increase decrease | 1,000,000,000 idi_IncreaseDecreaseInCommonStockSharesAuthorized / us-gaap_AwardTypeAxis = idi_ReverseStockSplitMember |  |  |
Common stock, shares authorized | 200,000,000 us-gaap_CommonStockSharesAuthorized / us-gaap_AwardTypeAxis = idi_ReverseStockSplitMember |  |  |
The Best One Inc [Member] | Interactive Data [Member] |  |  |  |
Organization And Principal Business [Line Items] |  |  |  |
Membership interest acquired |  |  |  | 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = idi_InteractiveDataMember / dei_LegalEntityAxis = us-gaap_ParentCompanyMember

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187143-122770 + Details
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