Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND INTANGIBLE ASSETS - Schedule of Purchased Intangible Assets (Details)

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GOODWILL AND INTANGIBLE ASSETS - Schedule of Purchased Intangible Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross $ 2,932.1 $ 2,937.1
Accumulated Amortization (1,233.0) (1,118.6)
Net 1,699.1 1,818.5
Purchased data files    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 1,088.0 1,090.0
Accumulated Amortization (562.9) (527.8)
Net 525.1 562.2
Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 878.2 874.6
Accumulated Amortization (442.9) (407.4)
Net 435.3 467.2
Proprietary database    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 706.3 705.9
Accumulated Amortization (143.3) (115.0)
Net 563.0 590.9
Acquired software and technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 222.7 225.4
Accumulated Amortization (57.4) (42.6)
Net 165.3 182.8
Trade names and other intangible assets    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 22.4 26.7
Accumulated Amortization (19.0) (19.6)
Net 3.4 7.1
Non-compete agreements    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross 14.5 14.5
Accumulated Amortization (7.5) (6.2)
Net $ 7.0 $ 8.3