v2.4.0.6

Operating Segments (Details) (USD $) In Millions, unless otherwise specified | 8 Months Ended | 4 Months Ended | 12 Months Ended | 4 Months Ended | 12 Months Ended | 4 Months Ended | 12 Months Ended | 4 Months Ended | 12 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 TransUnion Corp-Successor [Member] | Dec. 31, 2012 TransUnion Corp-Successor [Member] U.S. Information Services [Member] | Dec. 31, 2012 TransUnion Corp-Successor [Member] International [Member] | Dec. 31, 2012 TransUnion Corp-Successor [Member] Interactive [Member] | Dec. 31, 2012 TransUnion Corp-Successor [Member] Corporate [Member] | Apr. 30, 2012 TransUnion Corp-Predecessor [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] | Dec. 31, 2010 TransUnion Corp-Predecessor [Member] | Apr. 30, 2012 TransUnion Corp-Predecessor [Member] U.S. Information Services [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] U.S. Information Services [Member] | Dec. 31, 2010 TransUnion Corp-Predecessor [Member] U.S. Information Services [Member] | Apr. 30, 2012 TransUnion Corp-Predecessor [Member] International [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] International [Member] | Dec. 31, 2010 TransUnion Corp-Predecessor [Member] International [Member] | Apr. 30, 2012 TransUnion Corp-Predecessor [Member] Interactive [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] Interactive [Member] | Dec. 31, 2010 TransUnion Corp-Predecessor [Member] Interactive [Member] | Apr. 30, 2012 TransUnion Corp-Predecessor [Member] Corporate [Member] | Dec. 31, 2011 TransUnion Corp-Predecessor [Member] Corporate [Member] | Dec. 31, 2010 TransUnion Corp-Predecessor [Member] Corporate [Member]
Financial information by segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 767.0 | $ 487.4 | $ 157.8 | $ 121.8 |  | $ 373.0 | $ 1,024.0 | $ 956.5 | $ 238.1 | $ 660.1 | $ 636.0 | $ 76.6 | $ 216.1 | $ 195.8 | $ 58.3 | $ 147.8 | $ 124.7 |  |  |
Operating income | $ 142.1 | $ 121.9 | $ 19.1 | $ 48.7 | $ (47.6) | $ (0.2) | $ 252.7 | $ 216.1 | $ 33.2 | $ 185.8 | $ 177.1 | $ 5.3 | $ 66.7 | $ 62.7 | $ 13.0 | $ 56.5 | $ 37.7 | $ (51.7) | $ (56.3) | $ (61.4)

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