COMMITMENT AND CONTINGENCIES - Schedule of income tax contingencies (Details) R$ in Millions, $ in Millions	Sep. 30, 2025 USD ($)	Sep. 30, 2025 BRL (R$)	Jun. 30, 2025 USD ($)
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	$ 37.7		$ 36.6
Brazilian Tax Assessments | Pending Litigation | Foreign State Tax Authority | 2017-2019
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	151.2	R$ 804.7
Brazilian Tax Assessments | Pending Litigation | Foreign State Tax Authority | 2016-2019
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	46.5	247.8
Brazilian Tax Assessments | Pending Litigation | Foreign State Tax Authority | 2016-2020
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	0.0	0.0
Brazilian Tax Assessments | Pending Litigation | Foreign Federal Tax Authority | 2016-2017
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	89.6	477.0
Brazilian Tax Assessments | Pending Litigation | Foreign Federal Tax Authority | 2018-2019
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	91.6	487.6
Brazilian Tax Assessments | Pending Litigation | Foreign Federal Tax Authority | 2020
Loss Contingencies [Line Items]
Unrecognized tax benefits, income tax penalties and interest accrued	$ 7.0	R$ 37.3