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Income Taxes (Details 4) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
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Dec. 31, 2012
TransUnion Corp [Member]
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Dec. 31, 2011
TransUnion Corp [Member]
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Dec. 31, 2012
TransUnion Corp [Member]
TransUnion Corp-Successor [Member]
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Dec. 31, 2011
TransUnion Corp [Member]
TransUnion Corp-Predecessor [Member]
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| Unrecognized tax benefits | |||||
| Balance as of beginning of period | $ 3.2 | $ 4.8 | $ 3.2 | $ 3.2 | $ 2.1 |
| Additions for tax positions of prior years | 0.2 | 0.2 | 0.4 | ||
| Reductions for tax positions of prior years | |||||
| Additions for tax positions of current year | 1.7 | 1.6 | 2.2 | ||
| Reductions relating to settlement and lapse of statute | (0.2) | (0.2) | (1.5) | ||
| Balance as of December 31 | $ 4.9 | $ 4.8 | $ 3.2 | $ 4.8 | $ 3.2 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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