Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND INTANGIBLE ASSETS (Purchased Intangible Assets) (Detail)

v3.4.0.3
GOODWILL AND INTANGIBLE ASSETS (Purchased Intangible Assets) (Detail) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross $ 2,086.6 $ 1,439.8
Accumulated Amortization (614.8) (611.9)
Net 1,471.8 827.9
Purchased data files    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 1,032.6 665.9
Accumulated Amortization (231.0) (240.6)
Net 801.6 425.3
Acquired software and technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 152.8 52.4
Accumulated Amortization (31.8) (35.5)
Net 121.0 16.9
Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 732.6 565.9
Accumulated Amortization (248.8) (239.3)
Net 483.8 326.6
Reacquired rights    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 73.3 73.3
Accumulated Amortization (42.7) (39.4)
Net 30.6 33.9
Proprietary database    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 7.4 7.4
Accumulated Amortization (5.9) (5.8)
Net 1.5 1.6
Non-compete agreements    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 29.1 25.8
Accumulated Amortization (19.4) (18.3)
Net 9.7 7.5
Trade names and other intangible assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 58.8 49.1
Accumulated Amortization (35.2) (33.0)
Net $ 23.6 $ 16.1