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Supplemental Financial Data - Schedule of Future Amortization of Computer Software and Other Intangible (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
2025	$ 554.4
2026	479.9
2027	412.4
2028	351.8
2029	292.1
Thereafter	812.5
Total	2,903.1
Computer software
Finite-Lived Intangible Assets [Line Items]
2025	198.7
2026	155.4
2027	119.1
2028	88.3
2029	59.0
Thereafter	55.8
Total	676.3
Customer relationships
Finite-Lived Intangible Assets [Line Items]
2025	187.3
2026	169.6
2027	151.8
2028	134.0
2029	116.0
Thereafter	350.0
Total	1,108.7	$ 1,316.7	$ 1,536.7
Reacquired rights
Finite-Lived Intangible Assets [Line Items]
2025	18.1
2026	18.1
2027	18.1
2028	18.1
2029	18.1
Thereafter	109.8
Total	200.3	233.9	245.5
Database
Finite-Lived Intangible Assets [Line Items]
2025	133.9
2026	120.6
2027	107.3
2028	95.3
2029	83.3
Thereafter	249.6
Total	790.0	940.6	1,100.0
Other intangibles
Finite-Lived Intangible Assets [Line Items]
2025	16.4
2026	16.2
2027	16.1
2028	16.1
2029	15.7
Thereafter	47.3
Total	$ 127.8	$ 144.7	$ 157.9