v2.4.0.6
Income Taxes (Details 3) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
Dec. 31, 2012
TransUnion Corp [Member]
TransUnion Corp-Successor [Member]
Dec. 31, 2011
TransUnion Corp [Member]
TransUnion Corp-Predecessor [Member]
Deferred income tax assets:      
Deferred compensation $ 4.4 $ 4.4 $ 3.9
Stock-based compensation 0.3 0.3 2.4
Employee benefits 6.3 6.3 5.7
Legal reserves and settlements 1.9 1.9 1.7
Hedge investments 2.2 2.2   
Financing related costs 46.4 46.4   
Loss and credit carryforwards 71.0 51.3 30.5
Other 6.3 2.8 2.8
Gross deferred income tax assets 138.8 115.6 47.0
Valuation allowance (27.2) (27.2) (16.9)
Total deferred income tax assets, net 111.6 88.4 30.1
Deferred income tax liabilities:      
Depreciation and amortization (662.1) (662.1) (52.4)
Investments in affiliated companies (17.1) (17.1)   
Taxes on undistributed foreign earnings (49.7) (32.2) (4.8)
Other (3.9) (3.9) (4.1)
Total deferred income tax liability (723.8) (715.3) (61.3)
Net deferred income tax liability $ (621.2) $ (626.9) $ (31.2)