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GOODWILL AND INTANGIBLE ASSETS - Schedule of Purchased Intangible Assets (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 2,931.6 | $ 2,937.1
Accumulated Amortization | (1,171.7) | (1,118.6)
Net | 1,759.9 | 1,818.5
Purchased data files |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 1,089.5 | 1,090.0
Accumulated Amortization | (545.6) | (527.8)
Net | 543.9 | 562.2
Customer relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 876.0 | 874.6
Accumulated Amortization | (424.1) | (407.4)
Net | 451.9 | 467.2
Proprietary database |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 706.2 | 705.9
Accumulated Amortization | (129.2) | (115.0)
Net | 577.0 | 590.9
Acquired software and technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 223.1 | 225.4
Accumulated Amortization | (48.9) | (42.6)
Net | 174.2 | 182.8
Trade names and other intangible assets |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 22.1 | 26.7
Accumulated Amortization | (17.0) | (19.6)
Net | 5.1 | 7.1
Non-compete agreements |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross | 14.7 | 14.5
Accumulated Amortization | (6.9) | (6.2)
Net | $ 7.8 | $ 8.3

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