v2.4.0.6
Income Taxes (Details 2) (USD $)
In Millions, unless otherwise specified
10 Months Ended 12 Months Ended 4 Months Ended 8 Months Ended 12 Months Ended 8 Months Ended 4 Months Ended 12 Months Ended
Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
Apr. 30, 2012
TransUnion Corp [Member]
Dec. 31, 2012
TransUnion Corp [Member]
Dec. 31, 2011
TransUnion Corp [Member]
Dec. 31, 2010
TransUnion Corp [Member]
Dec. 31, 2012
TransUnion Corp [Member]
TransUnion Corp-Successor [Member]
Apr. 30, 2012
TransUnion Corp [Member]
TransUnion Corp-Predecessor [Member]
Dec. 31, 2011
TransUnion Corp [Member]
TransUnion Corp-Predecessor [Member]
Dec. 31, 2010
TransUnion Corp [Member]
TransUnion Corp-Predecessor [Member]
Reconciliation of the U.S. federal statutory tax rate to our effective tax rate                    
Income taxes at 35% statutory rate, Value $ 0.9           $ 25.3 $ (22.4) $ 23.5 $ 29.0
Income taxes at 35% statutory rate, Percent 35.00% 35.00% 35.00% 35.00% 35.00% 35.00% 35.00% 35.00% 35.00% 35.00%
Increase (decrease) resulting from:                    
State taxes net of federal income tax benefit (0.9)           0.7 (1.4) (0.4) (1.6)
State taxes net of federal income tax benefit, percent (35.00%)           1.00% 2.20% (0.60%) (2.00%)
Foreign rate differential (4.0)           (4.0) (1.2) (3.9) (0.2)
Foreign rate differential, percent (148.10%)           (5.50%) 1.90% (5.80%) (0.20%)
Nondeductible change in control transaction expenses 1.8           0.2 2.7 (4.5) 9.5
Nondeductible change in control transaction expenses, percent 66.70%           0.30% (4.20%) (6.70%) 11.40%
Application of ASC 740-30 to foreign earnings 4.3           (1.9) 8.1 2.5 1.6
Application of ASC 740-30 to foreign earnings, percent 159.20%           (2.70%) (12.70%) 3.70% 1.90%
Impact of foreign dividends and foreign tax credits 5.0           4.9 2.0 2.0 7.8
Impact of foreign dividends and foreign tax credits, percent 185.20%           6.80% (3.10%) 3.00% 9.40%
Other (0.5)           (0.9) 0.7 (1.4) 0.2
Other, percent 18.60%           (1.20%) (1.10%) 2.10% 0.30%
Total $ 6.6           $ 24.3 $ (11.5) $ 17.8 $ 46.3
Total, percent 244.40%   18.00% 33.70% 26.50% 55.80% 33.70% 18.00% 26.50% 55.80%