Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Narrative (Details)

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FAIR VALUE MEASUREMENTS - Narrative (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Estimated unrealized losses to be reclassified into earnings in the next 12 months $ 31.8  
Fixed rate private placement notes | Unsecured debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Weighted average contractual interest rate (percent) 3.40%  
Fixed rate mortgages payable | Mortgages    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Weighted average contractual interest rate (percent) 4.10% 4.12%
Reported value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notes payable, fair value disclosure $ 1,230.0 $ 905.0
Fixed rate mortgages, fair value disclosure 299.6 303.9
Fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notes payable, fair value disclosure 1,000.0 931.1
Fixed rate mortgages, fair value disclosure $ 282.8 $ 319.9
Level 2 | Weighted average market rate | Weighted Average | Fixed rate private placement notes    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Weighted average market interest rate (percent) 0.0601  
Level 2 | Weighted average market rate | Weighted Average | Fixed rate mortgages payable    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Weighted average market interest rate (percent) 0.0621 0.0255
Designated as hedging instrument | Interest rate swap | Cash flow hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Aggregate notional amount $ 1,410.0 $ 1,125.0
Weighted average remaining term (in years) 3 years  
Weighted average fixed rate (percent) 2.27%