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Operating Partnerships (Details) (USD $) In Millions, except Share data, unless otherwise specified | 12 Months Ended | 1 Months Ended |  | 12 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 31, 2011 Camden Operating LP [Member] | Jan. 31, 2012 Oasis Martinique LLC [Member] | Dec. 31, 2011 Oasis Martinique LLC [Member] | Dec. 31, 2011 Camden Summit Partnership LP [Member] | Feb. 17, 2012 Redemption of Units [Member] | Feb. 17, 2012 Redemption of Units [Member] Camden Operating LP [Member]
Operating Partnerships [Line Items] |  |  |  |  |  |
Percentage of real estate properties held with operating partnership | 10.00% |  |  | 23.00% |  |
Common and preferred limited partnership interest | 89.80% |  |  | 94.10% |  |
General partnership interest | 1.00% |  |  | 1.00% |  |
Limited partnership units | 1,100,000 |  | 300,000 | 1,100,000 |  |
Converted shares |  | 100,000 |  |  |  |
Cumulative redeemable perpetual preferred units, value | $ 100.0 |  |  |  |  |
Cumulative redeemable perpetual preferred units, dividend rate | 7.00% |  |  |  | 7.00% |
Temporary equity, shares outstanding |  |  |  |  |  | 4,000,000
Preferred Stock, Redemption Price Per Share |  |  |  |  | $ 25.00 |
Aggregate redemption price |  |  |  |  | 100.0 |
Series B issuance costs |  |  |  |  | $ 2.1 |
Resultant number of common shares from exchange of operating interest units |  |  | 200,000 |  |  |
Units Converted To Shares During Period |  | 200,000 |  |  |  |

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- Definition The number of units or percentage investment held by the managing member or general partner of the LLC or LP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Practice Bulletin (PB) -Number 14 -Paragraph 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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- Definition Amount to be paid per share that is classified as temporary equity by entity upon redemption. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2,3,4,5,6,7,8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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