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SOFTWARE DEVELOPMENT COSTS AND LICENSES (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Mar. 31, 2023
Capitalized software development costs and licenses          
Current $ 69.9   $ 69.9   $ 65.9
Non-current 1,444.3   1,444.3   1,072.2
Impairment of software development costs and licenses 0.0 $ 1.7 21.7 $ 25.0  
Software development costs, internally developed          
Capitalized software development costs and licenses          
Current 51.1   51.1   47.4
Non-current 1,154.6   1,154.6   882.0
Software development costs, externally developed          
Capitalized software development costs and licenses          
Current 0.2   0.2   2.2
Non-current 251.6   251.6   169.7
Licenses          
Capitalized software development costs and licenses          
Current 18.6   18.6   16.3
Non-current $ 38.1   $ 38.1   $ 20.5