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Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Capitalized interest $ 4,800,000 $ 4,500,000  
Capitalized real estate taxes 1,400,000 $ 1,600,000  
Remainder of 2021 497,200    
2022 89,300    
2023 4,200    
2024 3,400    
2025 2,700    
Thereafter 6,900    
Lessor, Operating Lease, Payments to be Received 603,700    
Outstanding notes receivable $ 6,400,000   $ 6,400,000
Weighted average interest rate on outstanding notes receivable 7.00% 7.00%  
Conversion of operating partnership units $ 0 $ 0  
Conversion of Stock, Name [Domain]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Conversion of operating partnership units $ 3,317,000    
Residential Leases [Member] | Maximum [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Term of lease contract 14 months    
Camden Operating L P [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Outstanding common limited partnership units, ownership interest 93.00%    
General Partner of Consolidated Operating Partnerships, Ownership Interest 1.00%    
Camden Summit Partnership L P [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Outstanding common limited partnership units, ownership interest 95.00%    
General Partner of Consolidated Operating Partnerships, Ownership Interest 1.00%