v2.4.0.6

Operating Segments (Details 6) | 8 Months Ended | 4 Months Ended | 12 Months Ended | 8 Months Ended | 4 Months Ended | 12 Months Ended | 8 Months Ended | 4 Months Ended | 12 Months Ended | 8 Months Ended | 4 Months Ended | 12 Months Ended
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Dec. 31, 2012 United States [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 United States [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 United States [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 United States [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 South Africa [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 South Africa [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 South Africa [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 South Africa [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Canada [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 Canada [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 Canada [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 Canada [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2012 Other Country [Member] TransUnion Corp-Successor [Member] | Apr. 30, 2012 Other Country [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 Other Country [Member] TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 Other Country [Member] TransUnion Corp-Predecessor [Member]
Revenue based on the country |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue earned | 79.00% | 79.00% | 79.00% | 80.00% | 7.00% | 8.00% | 9.00% | 9.00% | 5.00% | 6.00% | 6.00% | 6.00% | 9.00% | 7.00% | 6.00% | 5.00%

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