v3.26.1
Business Acquisitions - Identifiable Intangible Assets (Details) - Trans Union de Mexico, S.A., S.I.C.
$ in Millions
Mar. 02, 2026
USD ($)
Business Combination [Line Items]  
Preliminary Fair Value $ 576.0
Weighted-Average Amortization Period 14 years 9 months 18 days
Customer relationships  
Business Combination [Line Items]  
Preliminary Fair Value $ 127.7
Weighted-Average Amortization Period 15 years
Database and credit files  
Business Combination [Line Items]  
Preliminary Fair Value $ 430.5
Weighted-Average Amortization Period 15 years
Trade names and trademarks  
Business Combination [Line Items]  
Preliminary Fair Value $ 15.2
Weighted-Average Amortization Period 10 years
Developed technology  
Business Combination [Line Items]  
Preliminary Fair Value $ 2.6
Weighted-Average Amortization Period 3 years