Current report filing

SUBSEQUENT EVENTS - Additional Information (Detail)

v2.4.0.8
SUBSEQUENT EVENTS - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended 3 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
USCIS Operating Segment and Talent Management Services [Member]
Dec. 31, 2011
USCIS Operating Segment and Talent Management Services [Member]
Dec. 31, 2010
USCIS Operating Segment and Talent Management Services [Member]
Mar. 31, 2013
Subsequent Event [Member]
Mar. 31, 2013
Subsequent Event [Member]
U S Consumer Information Solutions [Member]
Mar. 31, 2013
Subsequent Event [Member]
Talent Management Services [Member]
Subsequent Event [Line Items]                  
Proceeds received from sale of businesses $ 2.5 $ 2.5 $ 181.7         $ 47.5  
Escrow Receivable From Sale Of Business                 3.5
Revenue from discontinued operations       87.5 66.6 62.0      
Pretax income from discontinued operations       8.9 2.2 7.4      
Income tax benefit from disposals 3.4 1.4 36.8       18.1    
Discontinued Operation Income Loss From Discontinued Operation Income Tax Benefit Current             $ 14.3