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DEBT - Acquisition Line and Real Estate Related (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Other Debt
Debt Instrument
Real estate related debt	$ 5.4	$ 19.0
Real estate related | Other Debt
Debt Instrument
Real estate related debt	1,182.6	1,253.9
U.S. Notes | Other Debt
Debt Instrument
Real estate related debt	780.9
U.K. Notes | Other Debt
Debt Instrument
Real estate related debt	401.8
Line of Credit | Acquisition Line
Debt Instrument
Acquisition line	$ 710.0	$ 95.0
Interest rate (as a percentage)	5.70%

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