SENIOR NOTES PAYABLE AND OTHER DEBT - Derivatives and Hedging (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 CAD ($)	Jul. 31, 2023 USD ($)	Apr. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 CAD ($)
Forward Contracts, March And April 2023
Derivative [Line Items]
Derivative, notional amount					$ 250.0
Weighted interest rate					3.37%
Unsecured term loan due February 2027 | Interest Rate Swap
Derivative [Line Items]
Derivative, notional amount						$ 400.0
Mortgage loans and other
Derivative [Line Items]
Principal amount of debt	$ 3,200.0		$ 93.5	$ 426.8			$ 271.8
Repayments of debt	50.9	$ 0.6
Swap | Variable Rate Debt
Derivative [Line Items]
Variable rate debt amount	1,100.0
Derivative, notional amount	142.7
Swap | Fixed Rate Debt
Derivative [Line Items]
Variable rate debt amount	12,500.0
Derivative, notional amount	$ 527.3		651.5			200.0
Variable Rate Debt | Swap
Derivative [Line Items]
Principal amount of debt						$ 200.0
Fixed Rate Debt, Maturity Of March 2028 | Swap
Derivative [Line Items]
Derivative, notional amount			$ 93.5				$ 271.8