INCOME TAXES - Expirations of Tax Loss Carry Forwards (Details) $ in Millions	Jun. 30, 2025 USD ($)
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	$ 623.1
2026
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	8.2
2027
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	20.7
2028
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	68.6
2029
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	21.9
2030 and thereafter
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	503.7
United States
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
United States | 2026
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
United States | 2027
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
United States | 2028
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
United States | 2029
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
United States | 2030 and thereafter
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
Western Europe
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	208.8
Western Europe | 2026
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
Western Europe | 2027
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.2
Western Europe | 2028
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	52.0
Western Europe | 2029
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	0.0
Western Europe | 2030 and thereafter
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	156.6
Rest of World
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	414.3
Rest of World | 2026
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	8.2
Rest of World | 2027
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	20.5
Rest of World | 2028
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	16.6
Rest of World | 2029
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	21.9
Rest of World | 2030 and thereafter
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	$ 347.1