Quarterly report pursuant to Section 13 or 15(d)

REVENUE - Disaggregation of Revenue (Details)

v3.21.2
REVENUE - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of Revenue [Line Items]        
Operating revenue $ 1,222.9 $ 1,068.3 $ 3,670.7 $ 3,009.1
Change in revenue $ 154.6   $ 661.6  
Change in revenue (as a percent) 14.00%   22.00%  
Workforce Solutions        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 508.0 376.8 $ 1,484.5 1,031.4
Change in revenue $ 131.2   $ 453.1  
Change in revenue (as a percent) 35.00%   44.00%  
Workforce Solutions | Verification Services        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 402.7 301.1 $ 1,182.3 773.2
Change in revenue $ 101.6   $ 409.1  
Change in revenue (as a percent) 34.00%   53.00%  
Workforce Solutions | Employer Services        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 105.3 75.7 $ 302.2 258.2
Change in revenue $ 29.6   $ 44.0  
Change in revenue (as a percent) 39.00%   17.00%  
U.S. Information Solutions        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 387.8 386.3 $ 1,203.0 1,095.1
Change in revenue $ 1.5   $ 107.9  
Change in revenue (as a percent) 0.00%   10.00%  
U.S. Information Solutions | Online Information Solutions        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 286.3 284.7 $ 886.2 800.3
Change in revenue $ 1.6   $ 85.9  
Change in revenue (as a percent) 1.00%   11.00%  
U.S. Information Solutions | Mortgage Solutions        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 46.2 55.4 $ 149.7 149.4
Change in revenue $ (9.2)   $ 0.3  
Change in revenue (as a percent) (17.00%)   0.00%  
U.S. Information Solutions | Financial Marketing Services        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 55.3 46.2 $ 167.1 145.4
Change in revenue $ 9.1   $ 21.7  
Change in revenue (as a percent) 20.00%   15.00%  
International        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 245.4 218.0 $ 737.7 614.6
Change in revenue $ 27.4   $ 123.1  
Change in revenue (as a percent) 13.00%   20.00%  
International | Asia Pacific        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 88.7 80.2 $ 267.0 215.1
Change in revenue $ 8.5   $ 51.9  
Change in revenue (as a percent) 11.00%   24.00%  
International | Europe        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 67.7 58.7 $ 204.8 173.2
Change in revenue $ 9.0   $ 31.6  
Change in revenue (as a percent) 15.00%   18.00%  
International | Latin America        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 44.6 40.4 $ 130.3 117.8
Change in revenue $ 4.2   $ 12.5  
Change in revenue (as a percent) 11.00%   11.00%  
International | Canada        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 44.4 38.7 $ 135.6 108.5
Change in revenue $ 5.7   $ 27.1  
Change in revenue (as a percent) 15.00%   25.00%  
Global Consumer Solutions        
Disaggregation of Revenue [Line Items]        
Operating revenue $ 81.7 $ 87.2 $ 245.5 $ 268.0
Change in revenue $ (5.5)   $ (22.5)  
Change in revenue (as a percent) (6.00%)   (8.00%)