SENIOR NOTES PAYABLE AND OTHER DEBT - 2023 Activity (Details) $ in Millions, $ in Millions		1 Months Ended
	May 01, 2023	Apr. 30, 2023 USD ($)	Mar. 31, 2023 CAD ($)	Sep. 30, 2023 USD ($)	Jul. 31, 2023 USD ($)	Jun. 30, 2023 CAD ($)	Mar. 31, 2023 USD ($)
Debt instruments
Debt instrument, face amount				$ 1,566.0
Interest Rate Swap | Unsecured term loan due June 2027
Debt instruments
Derivative, term			2 years
Derivative notional amount							$ 400.0
Forward Contracts, March And April 2023
Debt instruments
Derivative, term		10 years
Derivative notional amount		$ 250.0
Weighted average interest rate		3.37%
Forward Starting Swap | Variable Rate Debt Member
Debt instruments
Debt instrument, face amount							200.0
Derivative notional amount				$ 143.7
Forward Starting Swap | Fixed Rate Debt, Maturity Of March 2028
Debt instruments
Derivative notional amount						$ 271.8
Fixed Rate Debt Member | Forward Starting Swap
Debt instruments
Derivative notional amount							$ 200.0
Mortgage loans and other
Debt instruments
Debt instrument, face amount			$ 271.8		$ 426.8
Interest rate					5.91%
Mortgage loans and other | LIBOR
Debt instruments
Variable interest rate	1.84%