Quarterly report pursuant to Section 13 or 15(d)

MERGER OF BRAZILIAN BUSINESS - Additional Information (Detail)

 v2.3.0.11
MERGER OF BRAZILIAN BUSINESS - Additional Information (Detail)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2011
USD ($)
Jun. 30, 2010
USD ($)
Jun. 30, 2011
USD ($)
Jun. 30, 2010
USD ($)
Jun. 30, 2011
Boa Vista Servicos S.A.
USD ($)
May 31, 2011
Boa Vista Servicos S.A.
USD ($)
May 31, 2011
Boa Vista Servicos S.A.
BRL
Jun. 30, 2011
Strategic Acquisitions
Maximum
USD ($)
Jun. 30, 2011
General Corporate Purposes
USD ($)
Jun. 30, 2011
General Corporate Purposes
Maximum
Business Acquisition [Line Items]                    
Percentage of interest acquired in Boa Vista Servicos S.A. ("BVS")           15.00% 15.00%      
Investment in Boa Vista Servicos S.A. ("BVS")           $ 82.3 130.0      
Pre-tax loss related to merger included in other expense (9.6) 0.8 (9.3) 0.3 10.3          
Goodwill write-off     33.2   33.2          
Goodwill cumulative translation adjustments     15.4   27.0          
Tax expense         17.5          
Additional funding agreed incremental amount                 5  
Additional funding commitments period               90 days   Two years
Additional funding agreed amount less cash contributions                 100  
Additional funding agreed amount               $ 100 $ 55  
Additional funding Description                 After the expiration of the initial 90-day period, and until two years from the Closing Date, BVS will have the right to obtain additional funding from Equifax, in $5 million increments, for general corporate purposes, in an amount up to the lesser of $100 million minus any Cash Contributions or $55 million.