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Acquisitions and Discontinued Operations Acquisitions and Discontinued Operations (Acquired properties) Table (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended		12 Months Ended		1 Months Ended
	Dec. 31, 2012	Jan. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2013 Camden Post Oak [Member]	Sep. 30, 2013 Camden Sotelo [Member]	Sep. 30, 2013 Camden Vantage [Member]
Business Acquisition [Line Items]
Number of apartment units in wholly owned property acquired	320	4,034	1,118	2,114	356	170	592
Purchase price of operating properties acquired			$ 225.0	$ 356.0	$ 108.5	$ 34.0	$ 82.5

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- Definition

Total number of apartment units associated with the property or properties acquired during the period.

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- Definition

Sales price of property or properties purchased during the period.

+ References

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+ Details

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- Details

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