Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Purchased Intangible Assets (Details)

v3.22.0.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Purchased Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross $ 2,813.4 $ 1,878.6
Accumulated Amortization (915.4) (880.8)
Net 1,898.0 997.8
Purchased data files    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 1,103.1 913.7
Accumulated Amortization (466.0) (399.2)
Net 637.1 514.5
Proprietary database    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 710.2 148.6
Accumulated Amortization (59.3) (30.7)
Net 650.9 117.9
Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 805.2 680.1
Accumulated Amortization (354.9) (331.4)
Net 450.3 348.7
Acquired software and technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 160.0 115.3
Accumulated Amortization (18.9) (106.6)
Net 141.1 8.7
Trade names and other intangible assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 23.9 14.4
Accumulated Amortization (12.6) (9.4)
Net 11.3 5.0
Non-compete agreements    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 11.0 6.5
Accumulated Amortization (3.7) (3.5)
Net $ 7.3 $ 3.0