Subsequent Events	3 Months Ended
Mar. 31, 2014
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events On April 9, 2014, TransUnion Corp. and Trans Union LLC refinanced and amended the senior secured credit facility. The refinancing resulted in an increase of the outstanding term loan from $1,120.5 million to $1,900.0 million. The amendment, among other things, reduced the interest rate floor and margins, reduced the amount available under the revolving line of credit from $210.0 million to $190.0 million, extended the maturity dates, and changed certain covenant requirements. The additional borrowings were used in part to repay all amounts outstanding under the existing revolving line of credit and pay fees and expenses associated with the refinancing transaction. On May 9, 2014, the remaining borrowings will be used to redeem the entire $645.0 million outstanding balance of the 11.375% notes issued by TransUnion Financing Corp and Trans Union LLC including unpaid accrued interest and a prepayment premium. We refer to these transactions collectively as the "2014 Refinancing Transaction." The 2014 Refinancing Transaction is expected to result in a net gain of approximately $30 million that will be recorded in the consolidated statement of income and approximately $9 million of additional deferred financing fees that will be recorded on the balance sheet in the second quarter of 2014.

Subsequent Events

On April 9, 2014, TransUnion Corp. and Trans Union LLC refinanced and amended the senior secured credit facility. The refinancing resulted in an increase of the outstanding term loan from $1,120.5 million to $1,900.0 million. The amendment, among other things, reduced the interest rate floor and margins, reduced the amount available under the revolving line of credit from $210.0 million to $190.0 million, extended the maturity dates, and changed certain covenant requirements. The additional borrowings were used in part to repay all amounts outstanding under the existing revolving line of credit and pay fees and expenses associated with the refinancing transaction. On May 9, 2014, the remaining borrowings will be used to redeem the entire $645.0 million outstanding balance of the 11.375% notes issued by TransUnion Financing Corp and Trans Union LLC including unpaid accrued interest and a prepayment premium. We refer to these transactions collectively as the "2014 Refinancing Transaction." The 2014 Refinancing Transaction is expected to result in a net gain of approximately $30 million that will be recorded in the consolidated statement of income and approximately $9 million of additional deferred financing fees that will be recorded on the balance sheet in the second quarter of 2014.