v2.4.0.6

Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Component accumulated other comprehensive income (loss) |
(in millions) |  | Foreign Currency Translation Adjustment |  |  | Net Unrealized Gain/(Loss) On Hedges |  |  | Accumulated Other Comprehensive Income / (Loss) |
TransUnion Corp. Predecessor balance at December 31, 2010 |  | $ | 9.3 |  |  | $ | — |  |  | $ | 9.3 |
Change |  |  | (12.9 | ) |  |  | — |  |  |  | (12.9 | )
TransUnion Corp. Predecessor balance at December 31, 2011 |  | $ | (3.6 | ) |  | $ | — |  |  | $ | (3.6 | )
Change |  |  | 2.2 |  |  |  | — |  |  |  | 2.2 |
TransUnion Corp. Predecessor balance at April, 30 2012 |  | $ | (1.4 | ) |  | $ | — |  |  | $ | (1.4 | )
Purchase accounting adjustments |  |  | 1.4 |  |  |  | — |  |  |  | 1.4 |
Change |  |  | (20.7 | ) |  |  | (3.7 | ) |  |  | (24.4 | )
TransUnion Corp Successor and TransUnion Holding balance at December 31, 2012 |  | $ | (20.7 | ) |  | $ | (3.7 | ) |  | $ | (24.4 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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