Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Summary of Borrowings (Details)

v3.21.2
BORROWINGS - Summary of Borrowings (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Long-term debt $ 646,067 $ 624,061
Mortgage notes and bonds payable    
Debt Instrument [Line Items]    
Principal Outstanding 649,457 627,590
Debt issuance costs – notes and bonds payable (3,490) (3,629)
Long-term debt 645,967 623,961
Notes payable to bank | Fixed-rate notes payable    
Debt Instrument [Line Items]    
Principal Outstanding $ 564,695 492,182
Notes payable to bank | Fixed-rate notes payable | Minimum    
Debt Instrument [Line Items]    
Stated Interest Rate 2.44%  
Notes payable to bank | Fixed-rate notes payable | Maximum    
Debt Instrument [Line Items]    
Stated Interest Rate 5.70%  
Notes payable to bank | Fixed-rate notes payable | Weighted average    
Debt Instrument [Line Items]    
Stated Interest Rate 3.73%  
Notes payable to bank | Variable-rate notes payable    
Debt Instrument [Line Items]    
Principal Outstanding $ 0 45,525
Bonds payable | Fixed-rate bonds payable    
Debt Instrument [Line Items]    
Principal Outstanding $ 84,762 89,883
Bonds payable | Fixed-rate bonds payable | Minimum    
Debt Instrument [Line Items]    
Stated Interest Rate 2.13%  
Bonds payable | Fixed-rate bonds payable | Maximum    
Debt Instrument [Line Items]    
Stated Interest Rate 4.57%  
Bonds payable | Fixed-rate bonds payable | Weighted average    
Debt Instrument [Line Items]    
Stated Interest Rate 3.45%  
Line of credit | Variable-rate revolving lines of credit | Revolving credit facility    
Debt Instrument [Line Items]    
Long-term debt $ 100 $ 100
Stated Interest Rate 2.50%