Quarterly report [Sections 13 or 15(d)]

INCOME TAXES (Details)

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INCOME TAXES (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Income Tax Contingency [Line Items]        
Effective income tax rate (as a percent) (0.30%) (0.40%) (0.40%) (0.60%)
Unrecognized tax benefits including interest and penalties $ 78.7   $ 78.7  
Unrecognized tax benefits that would impact effective tax rate 69.5   69.5  
Total unrecognized tax benefit including interest and penalties 1.3   1.3  
Increase in unrecognized tax benefits is reasonably possible 1.8   1.8  
Increase in unrecognized tax benefits valuation allowance is reasonably possible 0.8   0.8  
Increase in unrecognized tax benefits net is reasonably possible 1.0   1.0  
Balance Sheet Location [Axis]: us-gaap:OtherAssetsNoncurrent        
Income Tax Contingency [Line Items]        
Unrecognized tax benefits 71.6   71.6  
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent        
Income Tax Contingency [Line Items]        
Unrecognized tax benefits $ 7.1   $ 7.1