Quarterly report pursuant to Section 13 or 15(d)

REVENUE - Disaggregation of Revenue (Details)

v3.21.1
REVENUE - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Disaggregation of Revenue [Line Items]    
Operating revenue $ 1,213.0 $ 957.9
Change in revenue $ 255.1  
Change in revenue (as a percent) 27.00%  
Operating Segments | Workforce Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 480.9 301.6
Change in revenue $ 179.3  
Change in revenue (as a percent) 59.00%  
Operating Segments | Workforce Solutions | Verification Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 385.2 220.2
Change in revenue $ 165.0  
Change in revenue (as a percent) 75.00%  
Operating Segments | Workforce Solutions | Employer Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 95.7 81.4
Change in revenue $ 14.3  
Change in revenue (as a percent) 17.00%  
Operating Segments | U.S. Information Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 409.4 343.2
Change in revenue $ 66.2  
Change in revenue (as a percent) 19.00%  
Operating Segments | U.S. Information Solutions | Online Information Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 302.0 252.8
Change in revenue $ 49.2  
Change in revenue (as a percent) 19.00%  
Operating Segments | U.S. Information Solutions | Mortgage Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 54.1 42.8
Change in revenue $ 11.3  
Change in revenue (as a percent) 27.00%  
Operating Segments | U.S. Information Solutions | Financial Marketing Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 53.3 47.6
Change in revenue $ 5.7  
Change in revenue (as a percent) 12.00%  
Operating Segments | International    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 241.3 216.0
Change in revenue $ 25.3  
Change in revenue (as a percent) 12.00%  
Operating Segments | International | Asia Pacific    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 86.9 69.7
Change in revenue $ 17.2  
Change in revenue (as a percent) 25.00%  
Operating Segments | International | Europe    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 68.7 66.4
Change in revenue $ 2.3  
Change in revenue (as a percent) 3.00%  
Operating Segments | International | Latin America    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 41.6 43.2
Change in revenue $ (1.6)  
Change in revenue (as a percent) (4.00%)  
Operating Segments | International | Canada    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 44.1 36.7
Change in revenue $ 7.4  
Change in revenue (as a percent) 20.00%  
Operating Segments | Global Consumer Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 81.4 $ 97.1
Change in revenue $ (15.7)  
Change in revenue (as a percent) (16.00%)