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Summary of Significant Accounting Policies and Recent Accounting Pronouncements (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Capitalized interest $ 4,400,000 $ 4,100,000 $ 9,200,000 $ 8,600,000
Capitalized real estate taxes 1,100,000 1,300,000 2,500,000 2,800,000
Remainder of 2021 452,400   452,400  
2022 261,200   261,200  
2023 4,300   4,300  
2024 3,500   3,500  
2025 2,900   2,900  
Thereafter 10,600   10,600  
Lessor, Operating Lease, Payments to be Received 734,900   734,900  
Amortization of Intangible Assets $ 2,500,000 $ 4,200,000 $ 2,500,000 $ 8,800,000
Residential Leases [Member] | Maximum [Member]        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Term of lease contract 14 months   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%