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Investments in Unconsolidated Affiliates - Sale of Investment (Details) - D&B Investment - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
Feb. 15, 2022
Feb. 14, 2022
Dec. 31, 2021
Jul. 06, 2020
Schedule of Equity Method Investments [Line Items]        
Ownership interest (percent)       13.00%
Fair value of investment     $ 1,123.9  
Share price (in USD per share)     $ 20.49  
Subsequent Event        
Schedule of Equity Method Investments [Line Items]        
Number of shares sold 36.4      
Ownership interest (percent) 4.30%      
Fair value of investment $ 352.8      
Share price (in USD per share)   $ 19.10