SENIOR NOTES PAYABLE AND OTHER DEBT - Derivatives and Hedging (Details) - 12 months ended Dec. 31, 2025 $ in Millions, $ in Millions	USD ($)	CAD ($)
Mortgage loans and other
Derivative [Line Items]
Principal amount of debt	$ 2,600.0
Repayments of debt	596.9
Swap | Variable Rate Debt
Derivative [Line Items]
Variable rate debt amount	1,100.0
Derivative, notional amount	75.3
Swap | Fixed Rate Debt
Derivative [Line Items]
Long-term debt, percentage bearing fixed interest, amount	12,000.0
Swap One | Fixed Rate Debt
Derivative [Line Items]
Derivative, notional amount	125.5
Swap Two | Fixed Rate Debt
Derivative [Line Items]
Derivative, notional amount	$ 433.9	$ 595.5