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Operating Partnerships Operating Partnerships (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Feb. 29, 2012
Camden Operating L P [Member]
Dec. 31, 2013
Camden Operating L P [Member]
Dec. 31, 2013
Camden Summit Partnership L P [Member]
Percentage Of Real Estate Properties Held With Operating Partnership         8.00% 26.00%
Units of Partnership Interest, Amount         11.9 22.8
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest         92.10% 94.20%
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest         1.00% 1.00%
Limited Partners' Capital Account, Units Outstanding         0.8 1.1
Number of perpetual preferred units redeemed       4.0    
Dividend percentage of perpetual preferred units       7.00%    
Perpetual preferred units Redemption Price Per Share       $ 25.00    
Aggregated redemption value of perpetual preferred units       $ 100,000,000    
Write off of original issuance costs of redeemed perpetual preferred units $ 0 $ 2,075,000 $ 0 $ 2,100,000