XML 15 R46.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Investments In Joint Ventures (Narrative) (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Number of joint ventures accounted for under equity method investments | 5 |
Maximum guaranteed amount of loans utilized for construction and development activities for joint ventures | $ 0 |
Fees earned for property and asset management, construction, development, and other services to joint ventures | $ 2,700,000 | $ 1,500,000
Raleigh North Carolina [Member] |  |
Number of units in multifamily properties acquired | 350 |
Orange County Florida [Member] |  |
Acres of land acquired | 15.0 |
Minimum [Member] |  |
Equity method investment ownership percentage | 15.00% |
Maximum [Member] |  |
Equity method investment ownership percentage | 50.00% |

X
- Definition Acres of land acquired by the company during the period to be utilized in the development of multiple multifamily apartment communities. + References No definition available. + Details
Name: | cpt_AcresOfLandAcquired
Namespace Prefix: | cpt_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revenue earned by providing property management, construction, development, and other services to joint ventures. + References No definition available. + Details
Name: | cpt_FeesEarnedForPropertyAndAssetManagementConstructionDevelopmentAndOtherServicesToJointVentures
Namespace Prefix: | cpt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of apartment units in properties acquired during the period by our discretionary funds (unconsolidated joint ventures). + References No definition available. + Details
Name: | cpt_NumberOfApartmentUnitsInPropertyAcquired
Namespace Prefix: | cpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of joint ventures accounted for under equity method investments. + References No definition available. + Details
Name: | cpt_NumberOfJointVenturesAccountedForUnderEquityMethodInvestments
Namespace Prefix: | cpt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f -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 AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a (1) -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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 13 -Subparagraph b -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 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant