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Debt (Details Textual) (USD $)
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0 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 4 Months Ended | 1 Months Ended | 1 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 15, 2010
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Jun. 15, 2010
Seven Year Senior Secured Term Loan [Member]
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Dec. 31, 2012
Senior unsecured PIK toggle private placement notes [Member]
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Apr. 30, 2012
Revolving Credit Facility [Member]
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Dec. 31, 2012
Senior secured revolving line of credit [Member]
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Dec. 31, 2012
5.50% Senior secured term loan [Member]
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Dec. 31, 2012
5.0% Senior Secured Term Loan [Member]
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Dec. 31, 2012
5.11% Senior secured revolving line of credit [Member]
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Dec. 31, 2012
11.375% Senior notes [Member]
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Dec. 31, 2012
11.625% RFC loan [Member]
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Dec. 31, 2012
10.0% Note payable [Member]
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Dec. 31, 2012
Notes payable for 2007 [Member]
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Dec. 31, 2012
8.125% notes [Member]
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Dec. 31, 2012
9.625% notes [Member]
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Dec. 31, 2012
Senior unsecured PIK Toggle Notes 9.625% [Member]
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Dec. 31, 2012
Senior unsecured PIK toggle notes 8.125% [Member]
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Nov. 30, 2012
TransUnion Holding Company, Inc. [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
5.50% Senior secured term loan [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
5.11% Senior secured revolving line of credit [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
11.375% Senior notes [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
10.0% Note payable [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
9.625% Senior Note [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
8.125 % Senior Note [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
8.125% notes [Member]
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Dec. 31, 2012
TransUnion Holding Company, Inc. [Member]
9.625% notes [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Commitment Expires on 2015 [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Commitment Expires on 2016 [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Commitment Expires on 2017 [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Seven Year Senior Secured Term Loan [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Notes Payable [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Swap [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Swap [Member]
Term Loan [Member]
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Apr. 30, 2012
TransUnion Corp-Successor [Member]
Swap Payable [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Revolving Credit Facility [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Senior Secured Revolving Line of Credit [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Minimum [Member]
Senior secured revolving line of credit [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Minimum [Member]
Senior Secured Revolving Line of Credit [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Maximum [Member]
Revolving Credit Facility [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Maximum [Member]
Senior secured revolving line of credit [Member]
Swap [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Senior secured term loan [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
5.50% Senior secured term loan [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
5.11% Senior secured revolving line of credit [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
11.375% Senior notes [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
10.0% Note payable [Member]
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Apr. 15, 2013
TransUnion Corp-Successor [Member]
10.0% Note payable [Member]
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Apr. 15, 2012
TransUnion Corp-Successor [Member]
10.0% Note payable [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Senior Secured Term Loan [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Senior Secured Term Loan [Member]
Minimum [Member]
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Dec. 31, 2012
TransUnion Corp-Successor [Member]
Senior Secured Term Loan [Member]
Maximum [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
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Apr. 15, 2011
TransUnion Corp-Predecessor [Member]
Notes Payable [Member]
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Apr. 30, 2012
TransUnion Corp-Predecessor [Member]
Swap [Member]
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Apr. 30, 2012
TransUnion Corp-Predecessor [Member]
Swap [Member]
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Feb. 28, 2011
TransUnion Corp-Predecessor [Member]
5.50% Senior secured term loan [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
5.50% Senior secured term loan [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
5.11% Senior secured revolving line of credit [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
11.375% Senior notes [Member]
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Jun. 15, 2010
TransUnion Corp-Predecessor [Member]
11.375% Senior notes [Member]
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Jun. 30, 2010
TransUnion Corp-Predecessor [Member]
11.625% RFC loan [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
11.625% RFC loan [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
4.69% Note payable [Member]
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Dec. 31, 2011
TransUnion Corp-Predecessor [Member]
10.0% Note payable [Member]
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Jun. 15, 2010
TransUnion Corp-Predecessor [Member]
Senior notes, principal [Member]
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Jun. 15, 2010
TransUnion Corp-Predecessor [Member]
Senior notes, principal [Member]
RFC Loan [Member]
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| Debt (Textual) [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Variable interest rate | 5.50% | 5.11% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fixed Interest Rate | 11.375% | 9.625% | 8.125% | 11.375% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Imputed interest rate | 11.625% | 10.00% | 4.69% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Maturity Date | Feb. 10, 2017 | Feb. 10, 2018 | Jun. 15, 2018 | Jun. 15, 2018 | Jun. 15, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Discount at issuance | $ 2,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unamortized fair value adjustment | 113,400,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Principal amount issued | 1,626,700,000 | 950,000,000 | 400,000,000 | 400,000,000 | 600,000,000 | 950,000,000 | 645,000,000 | 16,700,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Offering Price | 99.50% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Payment of dividend to shareholders | 373,800,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Repayment of term loan | 487,500,000 | 10,000,000 | 19,500,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Funds Borrowed under term loan | 4,800,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Increase in basis point of term loan | 0.0050 | 0.0075 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt instrument maturity period | 7 years | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revolving Line of Credit Rate Margin | 4.00% | 3.00% | 5.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt instrument floor interest rate | 1.50% | 1.75% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual commitment fee | 0.50% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Principal Payments Percentage | 0.25% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Revolving line of credit, expiration date | Jun. 15, 2015 | Feb. 10, 2016 | Feb. 10, 2017 | Feb. 10, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional principal payments beginning date | 2013 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Percentage of excess cash flows to determine principal payment | 0.00% | 50.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Loan Paid in cash | 10,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Senior secured revolving line of credit | 210,000,000 | 25,000,000 | 30,000,000 | 155,000,000 | 210,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Percentage variable rate of interest | 1.50% | 1.50% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period of LIBOR interest rate | 3 months | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fixed rate of interest | 2.033% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Derivative, Description of variable rate basis | Interest equal to the greater of 1.50% or the 3-month LIBOR | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notional amount of swaps | 500,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair value of swap instrument, liability | 5,800,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unrealized loss, net of tax, on swap instruments | 3,700,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Gains or losses related to hedge | 0 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Imputed interest rate | 10.00% | 11.625% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Purchase accounting adjustment, senior notes | 124,200,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Note payable for acquisition of noncontrolling interests | 2,000,000 | 1,800,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| LIBOR Floor Rate | 1.50% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Discount on Unsecured Non Interest Bearing Note | 200,000 | 2,500,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Repayment of Principal and Interest | 5,100,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Percentage of Ownership Interest | 20.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unsecured, non-interest bearing note, due in annual installments | 1,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Unsecured, non-interest bearing note, due in year two | 1,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Carrying value of long term Debts | 2,680,900,000 | 923,400,000 | 758,400,000 | 900,000 | 600,000,000 | 398,000,000 | 1,682,900,000 | 923,400,000 | 758,400,000 | 900,000 | 1,601,200,000 | 942,900,000 | 645,000,000 | 10,300,000 | 900,000 | 1,800,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Long term debt fair value | $ 753,000,000 | $ 639,800,000 | $ 413,500,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||