v2.4.0.6

Related-Party Transactions (Details) (USD $) | 12 Months Ended |  |  |  |  | 8 Months Ended | 4 Months Ended | 12 Months Ended | 8 Months Ended | 4 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  | 1 Months Ended |  |  |
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Dec. 31, 2012 | Dec. 31, 2012 TransUnion Corp-Successor [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 RFC Loan [Member] TransUnion Corp [Member] | Nov. 04, 2011 Series A Preferred Stock [Member] | Dec. 31, 2012 Neal Gerber and Eisenberg LLP [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 Neal Gerber and Eisenberg LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 Neal Gerber and Eisenberg LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 Neal Gerber and Eisenberg LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Latham and Watkins LLP [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 Latham and Watkins LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 Latham and Watkins LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 Latham and Watkins LLP [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Pritzker Family US Situs Trusts [Member] | Dec. 31, 2012 Advent International Corporation [Member] | Dec. 31, 2012 Affiliates of Advent [Member] TransUnion Holding Company, Inc. [Member] | Dec. 31, 2012 Affiliates of Goldman Sachs & Co [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Affiliates of Goldman Sachs & Co [Member] TransUnion Holding Company, Inc. [Member] | Dec. 31, 2012 Goldman Sachs & Co [Member] | Dec. 31, 2010 Madison Dearborn Partners LLC [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 Pritzker Organization LLC [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Pritzker family business interests [Member] | Apr. 08, 2011 QED Fund I LP [Member] | May 03, 2011 Matthew A. Carey [Member] | Aug. 31, 2012 Executive Vice President [Member] | Dec. 21, 2012 Executive Vice President [Member] | Aug. 27, 2012 Executive Vice President [Member] | Dec. 31, 2012 Chief Executive Officer [Member]
Related Party Transactions (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Advisory fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |
Accrued fees related to consulting agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 125,000 |  |  |  | 125,000 |  |  |  |  |  |  |  |  |
Other fees |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 | 1,400,000 | 11,900,000 |  | 13,000,000 | 2,600,000 |  |  |  |  |  |  |
Legal Services |  |  |  |  |  | 500,000 | 100,000 | 1,300,000 | 900,000 | 400,000 | 3,500,000 | 4,400,000 | 3,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beneficially owned excess |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000 |  |  |  |  |  |
Common stock, shares issued |  | 100,000,000 | 29,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,775 | 22,500 |  | 225,563 |  | 199,237
Purchase price of common shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 24.37 | $ 24.37 |  | $ 6.65 |  | $ 6.65
Percentage of holding as limited partner |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98.00% |  |  |  |  |
Aggregate purchase of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 69,625 |  |  |
Purchase price of aggregate common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10.07 |
Share purchased, Preferred Stock |  | 0 | 0 |  | 318,471 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price of series A preferred stock |  |  |  |  | $ 3.14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowed |  |  |  | $ 16,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transactions (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual increase in advisor fee to GSC & Advent | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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