Annual report pursuant to Section 13 and 15(d)

DISCONTINUED OPERATIONS - Additional Information (Detail)

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DISCONTINUED OPERATIONS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2011
Sep. 30, 2010
Jun. 30, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Apr. 30, 2010
US Consumer Information Solutions
APPRO Loan Origination Software
Jul. 31, 2010
US Consumer Information Solutions
Direct Marketing Services Division
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                
Proceeds received from sale of businesses       $ 2.5 $ 2.5 $ 181.7 $ 72.0 $ 117.0
Revenue from discontinued operations           42.1    
Pretax income from discontinued operations           65.4    
Gain on divestitures   14.9 12.3          
Income from discontinued operations, net of tax $ 1.5       $ 1.5 $ 31.5