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GEOGRAPHIC INFORMATION AND SELECTED STATEMENTS OF INCOME DATA - Schedule of revenue by geographic area (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule Of Geographical Information [Line Items]      
Total revenues $ 2,414.7 $ 2,329.9 $ 2,166.8
Americas      
Schedule Of Geographical Information [Line Items]      
Total revenues 1,025.7 991.1 922.8
Europe, Middle East and Africa      
Schedule Of Geographical Information [Line Items]      
Total revenues 1,116.7 1,049.5 980.8
Asia Pacific      
Schedule Of Geographical Information [Line Items]      
Total revenues $ 272.3 $ 289.3 $ 263.2