Annual report pursuant to Section 13 and 15(d)

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

v3.25.0.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Purchased Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross $ 3,021.8 $ 3,219.9
Accumulated Amortization (1,500.8) (1,361.1)
Net 1,521.0 1,858.8
Purchased data files    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 1,111.9 1,158.5
Accumulated Amortization (669.5) (604.2)
Net 442.4 554.3
Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 937.7 1,053.5
Accumulated Amortization (484.2) (484.2)
Net 453.5 569.3
Proprietary database    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 704.9 705.8
Accumulated Amortization (227.6) (171.5)
Net 477.3 534.3
Acquired software and technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 217.6 222.5
Accumulated Amortization (106.3) (75.4)
Net 111.3 147.1
Trade names, non-compete agreements and other intangible assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 49.7 79.6
Accumulated Amortization (13.2) (25.8)
Net $ 36.5 $ 53.8