FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Fair Value of Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Fixed-rate | Carrying Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Financing liability: fixed-rate	$ 216.4	$ 220.6
Convertible senior notes | Carrying Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Convertible senior notes	476.4	476.4
Nonrecourse | Fixed-rate | Carrying Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	739.2	657.3
Full recourse | Fixed-rate | Carrying Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	808.7	940.4
Full recourse | Variable-rate | Carrying Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	418.8	48.4
Level 3 | Fixed-rate | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Financing liability: fixed-rate	223.0	223.4
Level 3 | Nonrecourse | Fixed-rate | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	743.4	636.5
Level 3 | Full recourse | Fixed-rate | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	804.8	920.4
Level 3 | Full recourse | Variable-rate | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans payable	427.6	48.5
Level 2 | Convertible senior notes | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Convertible senior notes	$ 643.7	$ 471.2