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Schedule III - Real Estate and Accumulated Depreciation Schedule III - Real Estate and Accumulated Depreciation (Details) (USD $) | 12 Months Ended |  |  |
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Real Estate and Accumulated Depreciation, Initial Cost of Land | $ 985,522,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,763,585,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 672,409,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 985,522,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 6,435,994,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 7,421,516,000 us-gaap_RealEstateGrossAtCarryingValue |  | 7,072,181,000 us-gaap_RealEstateGrossAtCarryingValue | 6,673,914,000 us-gaap_RealEstateGrossAtCarryingValue | 5,819,540,000 us-gaap_RealEstateGrossAtCarryingValue
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,738,862,000 us-gaap_RealEstateAccumulatedDepreciation |  | 1,643,713,000 us-gaap_RealEstateAccumulatedDepreciation | 1,518,896,000 us-gaap_RealEstateAccumulatedDepreciation | 1,432,799,000 us-gaap_RealEstateAccumulatedDepreciation
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 5,682,654,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 905,628,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances |  |  |  |
Current Communities [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 985,522,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 5,075,096,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 672,409,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 985,522,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 5,747,505,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 6,733,027,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,736,404,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 4,996,623,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 905,628,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember |  |  |  |
Current Communities [Member] | Camden Copper Square [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,825,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,672,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,574,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,825,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,246,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 35,071,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,749,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 21,322,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2000 |  |  |  |
Current Communities [Member] | Camden Foothills [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,006,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,343,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,006,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 33,343,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 44,349,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 542,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 43,807,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoothillsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2014 |  |  |  |
Current Communities [Member] | Camden Legacy [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,068,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,612,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 10,592,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,068,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,204,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,272,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 19,457,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 21,815,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Montierra [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 13,687,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,727,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,767,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 13,687,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 36,494,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 50,181,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,780,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 47,401,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontierraMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Pecos Ranch [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,362,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 24,492,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,485,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,362,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 28,977,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 32,339,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 28,780,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPecosRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden San Marcos [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,520,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,166,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,134,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,520,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 40,300,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 51,820,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,179,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 48,641,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanMarcosMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden San Paloma [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,480,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,045,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,480,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,632,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 37,112,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,081,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 25,031,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSanPalomaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2002 |  |  |  |
Current Communities [Member] | Camden Sotelo [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,376,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 30,576,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 481,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,376,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 31,057,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 34,433,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,554,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 32,879,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSoteloMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2013 |  |  |  |
Current Communities [Member] | Camden Crown Valley [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,381,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 54,210,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,597,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 9,381,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 61,807,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 71,188,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 24,723,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 46,465,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrownValleyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2001 |  |  |  |
Current Communities [Member] | Camden Harbor View [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 16,079,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 127,459,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,683,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 16,079,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 135,142,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 151,221,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 45,591,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 105,630,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 92,716,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHarborViewMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2003 |  |  |  |
Current Communities [Member] | Camden Main Jamboree [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 17,363,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 75,387,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 767,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 17,363,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 76,154,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 93,517,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,390,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 82,127,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 49,757,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMainandJamboreeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Martinique [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 28,401,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,861,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 16,153,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 28,401,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 68,014,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 96,415,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 34,197,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 62,218,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 34,751,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMartiniqueMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Parkside [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 29,730,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,368,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,209,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 29,730,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 35,577,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 65,307,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,909,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 61,398,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParksideMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Sea Palms [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,336,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,930,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,105,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,336,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 13,035,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 17,371,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,035,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 10,336,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSeaPalmsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Landmark [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 17,339,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 71,315,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,148,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 17,339,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 72,463,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 89,802,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,033,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 83,769,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandmarkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Old Creek [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 20,360,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 71,777,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,067,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 20,360,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 72,844,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 93,204,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 18,884,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 74,320,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOldCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden Sierra At Otay Ranch [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 10,585,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 49,781,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,388,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 10,585,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 54,169,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 64,754,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 19,355,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 45,399,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSierraAtOtayRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2003 |  |  |  |
Current Communities [Member] | Camden Tuscany [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,330,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,466,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,779,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,330,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 40,245,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 43,575,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,766,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 29,809,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTuscanyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2003 |  |  |  |
Current Communities [Member] | Camden Vineyards [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,367,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,494,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,356,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,367,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,850,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 35,217,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,952,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 23,265,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVineyardsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2002 |  |  |  |
Current Communities [Member] | Camden Belleview Station [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 8,091,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,003,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 681,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 8,091,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 44,684,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 52,775,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,371,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 49,404,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelleviewStationMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Caley [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,047,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,445,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,287,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,047,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 21,732,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 23,779,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,649,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 14,130,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 15,351,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCaleyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2000 |  |  |  |
Current Communities [Member] | Camden Denver West [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,396,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,552,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,407,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,396,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 52,959,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 59,355,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,472,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 55,883,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDenverWestMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Highlands Ridge [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,612,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,726,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 9,278,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,612,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 44,004,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 46,616,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 19,628,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 26,988,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHighlandsRidgeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1996 |  |  |  |
Current Communities [Member] | Camden Interlocken [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,293,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,612,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,717,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,293,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 39,329,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 44,622,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 18,449,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 26,173,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 27,431,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenInterlockenMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1999 |  |  |  |
Current Communities [Member] | Camden Lakeway [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,915,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,129,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 11,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,915,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,159,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 49,074,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 21,503,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 27,571,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 29,267,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakewayMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Ashburn Farms [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,835,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,604,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,446,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,835,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 24,050,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 28,885,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,360,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 21,525,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAshburnFarmMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Clearbrook [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,384,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,017,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 925,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,384,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 44,942,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 47,326,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,810,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 35,516,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenClearbrookMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden College Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 16,409,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 91,503,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,462,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 16,409,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 92,965,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 109,374,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,491,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 96,883,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCollegeParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Dulles Station [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 10,807,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,548,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,284,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 10,807,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 63,832,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 74,639,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,384,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 60,255,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDullesStationMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Fair Lakes [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 15,515,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 104,223,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,762,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 15,515,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 110,985,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 126,500,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 32,746,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 93,754,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Fairfax Corner [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 8,484,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 72,953,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,900,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 8,484,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 76,853,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 85,337,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 21,266,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 64,071,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairfaxCornerMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2006 |  |  |  |
Current Communities [Member] | Camden Fallsgrove [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,408,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,647,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,353,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 9,408,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 48,000,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 57,408,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,231,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 43,177,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFallsgroveMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Grand Parc [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,688,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,900,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,387,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,688,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,287,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 44,975,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,973,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 34,002,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandParcMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Landsdowne [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 15,502,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 102,267,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,865,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 15,502,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 107,132,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 122,634,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 32,559,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 90,075,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLandsdowneMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Largo Town Center [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 8,411,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,163,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,589,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 8,411,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 46,752,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 55,163,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,748,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 41,415,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLargoTownCenterMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Monument Place [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,030,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 54,089,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 852,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 9,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 54,941,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 63,971,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,980,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 49,991,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMonumentPlaceMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden NoMa [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 19,442,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 82,126,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 19,442,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 82,126,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 101,568,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,482,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 98,086,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNomaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2014 |  |  |  |
Current Communities [Member] | Camden Potomac Yard [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 16,498,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 88,317,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 584,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 16,498,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 88,901,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 105,399,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 21,131,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 84,268,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPotomacYardMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Roosevelt [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,470,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 45,785,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 923,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,470,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 46,708,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 58,178,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,159,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 44,019,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRooseveltMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Russett [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 13,460,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,837,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,746,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 13,460,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 65,583,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 79,043,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 19,913,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 59,130,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 45,063,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRussettMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Silo Creek [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,707,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 45,301,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,672,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 9,707,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 46,973,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 56,680,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,021,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 42,659,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSiloCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Summerfield [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 14,659,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 48,404,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 890,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 14,659,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 49,294,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 63,953,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,133,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 51,820,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Summerfield Two [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,459,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,566,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,459,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,571,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 25,030,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,707,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 22,323,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummerfieldTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Aventura [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 12,185,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,616,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 10,130,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 12,185,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 57,746,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 69,931,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 17,712,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 52,219,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAventuraMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Boca Raton [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,201,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 49,499,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,201,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 49,499,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 51,700,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 599,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 51,101,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBocaRatonMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2014 |  |  |  |
Current Communities [Member] | Camden Brickell [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 14,621,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 57,031,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 10,296,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 14,621,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 67,327,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 81,948,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 20,430,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 61,518,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrickellMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Doral [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 10,260,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,416,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,618,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 10,260,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,034,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 55,294,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,064,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 42,230,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Doral Villas [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,476,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,543,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,294,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,476,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,837,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 37,313,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,210,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 28,103,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDoralVillasMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Las Olas [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 12,395,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 79,518,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,803,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 12,395,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 87,321,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 99,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 26,091,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 73,625,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLasOlasMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Plantation [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,299,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 77,964,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,450,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,299,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 84,414,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 90,713,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 25,801,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 64,912,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlantationMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Portofino [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 9,867,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 38,702,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,994,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 9,867,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 42,696,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 52,563,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,141,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 39,422,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPortofinoMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Hunters Creek [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,156,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,925,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,317,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,156,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 25,242,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 29,398,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,418,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 21,980,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntersCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Lago Vista [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,497,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,623,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,281,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,497,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,904,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 34,401,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,348,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 24,053,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLagoVistaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden LaVina [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 12,907,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 42,569,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 58,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 12,907,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 42,627,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 55,534,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,148,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 49,386,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLavinaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Lee Vista [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,350,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,643,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,845,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,350,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 39,488,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 43,838,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 18,172,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 25,666,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLeeVistaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2000 |  |  |  |
Current Communities [Member] | Camden Orange Court [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,319,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 40,733,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 739,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,319,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 41,472,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 46,791,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,893,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 36,898,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOrangeCourtMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Renaissance [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,144,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 39,987,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,639,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,144,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,626,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 49,770,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 22,520,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 27,250,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRenaissanceMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Town Square [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 13,127,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 45,997,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 33,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 13,127,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 46,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 59,157,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,968,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 54,189,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTownSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden World Gateway [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,785,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,821,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,516,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,785,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 57,337,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 63,122,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 16,296,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 46,826,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWorldGatewayMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Bay [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,450,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 63,283,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 9,141,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,450,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 72,424,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 79,874,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 31,189,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 48,685,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBayMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998/2002 |  |  |  |
Current Communities [Member] | Camden Lakes [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,106,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,746,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 13,812,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,106,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 36,558,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 39,664,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 28,262,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,402,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Montague [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,576,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,534,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 22,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,576,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 16,556,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 20,132,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,258,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 17,874,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMontagueMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Preserve [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,206,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,982,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,578,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,206,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 24,560,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 25,766,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,860,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,906,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPreserveMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Providence Lakes [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,020,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,855,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,343,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,020,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 21,198,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 23,218,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,526,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,692,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenProvidenceLakesMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2002 |  |  |  |
Current Communities [Member] | Camden Royal Palms [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,147,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 38,339,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,117,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,147,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 40,456,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 42,603,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,957,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 32,646,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalPalmsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden Westchase Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,955,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,254,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 80,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,955,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 36,334,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 48,289,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,221,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 44,068,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestchaseParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Westshore [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,734,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,819,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,037,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,734,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 17,856,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 19,590,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,855,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 6,735,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestshoreMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Woods [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,693,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,930,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 10,463,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,693,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,393,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 33,086,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 20,899,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 12,187,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWoodsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1999 |  |  |  |
Current Communities [Member] | Camden Brookwood [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,174,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,984,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,536,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,174,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 38,520,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 45,694,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,909,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 33,785,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 22,624,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBrookwoodMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Creekstone [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,017,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,912,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 619,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,017,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,531,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 25,548,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,854,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 23,694,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCreekstoneMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Deerfield [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,895,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,922,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,523,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,895,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 27,445,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 32,340,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 8,313,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 24,027,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 19,220,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDeerfieldMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Dunwoody [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,290,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 23,642,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,896,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,290,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 30,538,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 35,828,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,261,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 26,567,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 21,168,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDunwoodyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Fourth Ward [Member] [Domain] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 10,477,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 51,258,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 83,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 10,477,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 51,341,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 61,818,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 366,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 61,452,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFourthWardMemberDomain |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2014 |  |  |  |
Current Communities [Member] | Camden Midtown Atlanta [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,196,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,828,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,341,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,196,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 38,169,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 44,365,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,187,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 32,178,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 20,565,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownAtlantaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Peachtree City [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,536,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,063,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,365,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,536,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 32,428,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 38,964,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,349,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 28,615,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPeachtreeCityMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Shiloh [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,181,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,798,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,210,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,181,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 23,008,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 27,189,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,142,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 20,047,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 10,576,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShilohMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden St Clair [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,526,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,486,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,751,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,526,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 34,237,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,763,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,707,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 31,056,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 21,646,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStClairMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Stockbridge [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,071,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,693,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,019,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,071,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 25,712,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 30,783,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 8,338,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 22,445,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 14,332,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStockbridgeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Vantage [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,787,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 68,822,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 918,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,787,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 69,740,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 81,527,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,578,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 77,949,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVantageMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2013 |  |  |  |
Current Communities [Member] | Camden Bel Air [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,594,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,221,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,775,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,594,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,996,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,590,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 22,551,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 19,039,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelAirMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Breeze [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,894,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,828,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,309,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,894,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 21,137,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 24,031,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,176,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,855,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreezeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Canyon [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,802,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,666,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,038,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,802,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 16,704,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 18,506,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,047,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 8,459,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCanyonMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Centre [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 172,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 1,166,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 384,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 172,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 1,550,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 1,722,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 951,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 771,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Commons [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,476,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,073,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,569,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,476,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 26,642,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 29,118,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 18,016,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,102,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCommonsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Cove [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,382,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,266,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,862,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,382,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 8,128,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 9,510,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,204,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 4,306,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCoveMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Del Mar [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,404,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 35,264,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 14,183,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,404,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 49,447,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 53,851,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 29,696,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 24,155,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDelMarMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Fairways [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,969,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,543,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 9,981,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,969,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 25,524,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 29,493,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 16,874,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 12,619,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairwaysMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Hills [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 853,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,834,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,703,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 853,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 9,537,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 10,390,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,988,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 4,402,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHillsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Legends [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,370,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,382,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,355,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,370,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 7,737,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 9,107,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,344,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 4,763,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegendsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Palisades [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 8,406,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,497,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 8,797,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 8,406,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 40,294,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 48,700,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 22,914,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 25,786,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPalisadesMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Pines [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,496,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,852,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,094,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,496,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 22,946,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 26,442,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,595,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 23,847,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPinesMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Pointe [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,058,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,879,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,242,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,058,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 18,121,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 20,179,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,782,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 10,397,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPointeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Summit [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,212,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,399,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 992,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,212,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 19,391,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 30,603,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,186,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 28,417,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSummitMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Tiara [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,709,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,644,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,025,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,709,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 29,669,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 37,378,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,335,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 34,043,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTiaraMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Vintage [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,641,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,255,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,565,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,641,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 24,820,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 28,461,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 15,199,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,262,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVintageMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1998 |  |  |  |
Current Communities [Member] | Camden Ballantyne [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,503,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 30,250,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,150,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,503,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,400,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,903,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,842,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 30,061,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 26,025,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBallantyneMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Cotton Mills [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,246,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 19,147,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,358,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,246,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 24,505,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 28,751,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,936,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 20,815,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCottonMillsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Dilworth [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 516,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,633,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,715,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 516,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 18,348,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 18,864,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,181,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,683,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 13,073,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenDilworthMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2006 |  |  |  |
Current Communities [Member] | Camden Fairview [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,283,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,223,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,575,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,283,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 10,798,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 12,081,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,847,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 8,234,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFairviewMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Foxcroft [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,408,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,919,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,547,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,408,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 11,466,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 12,874,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,337,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 8,537,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFoxcroftMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Grandview [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,570,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,859,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,412,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,570,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 40,271,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 47,841,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,955,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 34,886,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGrandviewMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Sedgebrook [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,266,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,211,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,366,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,266,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 35,577,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 40,843,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,256,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 29,587,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 21,306,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSedgebrookMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Simsbury [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,152,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,499,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,168,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,152,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 8,667,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 9,819,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,807,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 7,012,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSimsburyMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden South End Square [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 6,625,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,175,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,981,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 6,625,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 35,156,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,781,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,825,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 30,956,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSouthEndSquareMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Stonecrest [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,941,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,021,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,396,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,941,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 27,417,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 31,358,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 8,867,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 22,491,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonecrestMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Touchstone [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,203,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 6,772,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,574,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,203,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 9,346,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 10,549,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,657,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 6,892,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTouchstoneMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Crest [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,412,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,108,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,982,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,412,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 34,090,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 38,502,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,698,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 27,804,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCrestMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Governors Village [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,669,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,508,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,732,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,669,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 23,240,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 26,909,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,592,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 19,317,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 13,004,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGovernorsVillageMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Lake Pine [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,746,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,714,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,256,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,746,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,970,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 43,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,478,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 31,238,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 26,212,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLakePineMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Manor Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,535,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 47,159,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,498,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,535,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 48,657,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 51,192,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,480,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 36,712,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 29,675,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenManorParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2006 |  |  |  |
Current Communities [Member] | Camden Overlook [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,591,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,563,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,747,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,591,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 33,310,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 37,901,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,378,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 27,523,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOverlookMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Reunion Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,302,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,457,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,480,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 22,937,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 26,239,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,522,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 18,717,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 19,961,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenReunionParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Westwood [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,567,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 25,519,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,103,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,567,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 29,622,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 34,189,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,401,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 24,788,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 19,907,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWestwoodMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Cedar Hills [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,684,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,931,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 222,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,684,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 21,153,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 23,837,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,654,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 18,183,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCedarHillsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Current Communities [Member] | Camden Gaines Ranch [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,094,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 37,100,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 8,667,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,094,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,767,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 50,861,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,411,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 37,450,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGainesRanchMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2005 |  |  |  |
Current Communities [Member] | Camden Huntingdon [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,289,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 17,393,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 8,229,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,289,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 25,622,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 27,911,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 13,566,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 14,345,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHuntingdonMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1995 |  |  |  |
Current Communities [Member] | Camden Stoneleigh [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,498,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,285,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,495,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,498,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 37,780,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,278,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,530,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 30,748,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStoneleighMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2006 |  |  |  |
Current Communities [Member] | Camden Breakers [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,055,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,024,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,542,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,055,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,566,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 21,621,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 10,977,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 10,644,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBreakersMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1996 |  |  |  |
Current Communities [Member] | Camden Copper Ridge [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,204,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 9,180,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,972,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,204,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 16,152,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 17,356,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,844,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 5,512,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCopperRidgeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1993 |  |  |  |
Current Communities [Member] | Camden Miramar [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 38,784,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 17,524,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 56,308,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 56,308,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 19,811,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 36,497,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMiramarMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1994-2014 |  |  |  |
Current Communities [Member] | Camden Addison [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,516,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,332,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,300,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,516,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 34,632,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 46,148,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,208,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 41,940,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAddisonMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Belmont [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 12,521,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,522,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 762,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 12,521,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 62,284,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 74,805,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,682,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 69,123,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBelmontMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Buckingham [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,704,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 21,251,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 8,326,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,704,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 29,577,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 32,281,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 14,147,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 18,134,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckinghamMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Centreport [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,613,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,644,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 4,988,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,613,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 17,632,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 19,245,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 8,544,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 10,701,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCentreportMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Cimarron [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,231,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,092,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,615,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,231,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,707,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 22,938,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,410,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,528,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCimarronMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Farmers Market [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 17,341,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 74,193,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 13,002,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 17,341,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 87,195,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 104,536,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 34,023,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 70,513,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 50,711,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFarmersMarketMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2001/2005 |  |  |  |
Current Communities [Member] | Camden Henderson [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,842,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,256,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 113,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,842,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 15,369,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 19,211,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,550,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 17,661,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHendersonMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Legacy Creek [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,052,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,896,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 5,590,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,052,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 18,486,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 20,538,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,481,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,057,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyCreekMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Legacy Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,560,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 15,449,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,405,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,560,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 21,854,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 24,414,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,121,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,293,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 13,866,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLegacyParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1997 |  |  |  |
Current Communities [Member] | Camden Valley Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 3,096,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 14,667,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 13,279,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 3,096,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 27,946,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 31,042,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 24,000,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 7,042,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenValleyParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1994 |  |  |  |
Current Communities [Member] | Camden City Centre [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,976,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,735,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 954,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,976,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,689,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 50,665,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 11,962,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 38,703,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 33,795,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden City Centre Two [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 5,101,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,131,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 19,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 5,101,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 28,150,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 33,251,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,612,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 30,639,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenCityCentreTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2013 |  |  |  |
Current Communities [Member] | Camden Greenway [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 16,916,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 43,933,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 15,942,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 16,916,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 59,875,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 76,791,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 27,237,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 49,554,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 52,360,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGreenwayMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1999 |  |  |  |
Current Communities [Member] | Camden Holly Springs [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 11,108,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 42,852,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 7,401,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 11,108,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 50,253,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 61,361,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,594,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 55,767,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHollySpringsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Midtown [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,583,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,026,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 8,231,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,583,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 26,257,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 30,840,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 12,532,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 18,308,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 28,058,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMidtownMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1999 |  |  |  |
Current Communities [Member] | Camden Oak Crest [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 2,078,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,941,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,363,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 2,078,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 24,304,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 26,382,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 9,470,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 16,912,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 17,309,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenOakCrestMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2003 |  |  |  |
Current Communities [Member] | Camden Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 4,922,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 16,453,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 2,035,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 4,922,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 18,488,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 23,410,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,133,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 21,277,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Plaza [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,204,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,044,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 635,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,204,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 31,679,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 38,883,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,535,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 34,348,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 21,120,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPlazaMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2007 |  |  |  |
Current Communities [Member] | Camden Post Oak [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 14,302,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 92,557,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 6,030,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 14,302,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 98,587,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 112,889,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 5,406,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 107,483,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPostOakMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2013 |  |  |  |
Current Communities [Member] | Camden Royal Oaks [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,055,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,046,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 520,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,055,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,566,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 21,621,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,482,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 15,139,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2006 |  |  |  |
Current Communities [Member] | Camden Royal Oaks Two [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 587,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,743,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 14,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 587,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 12,757,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 13,344,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 1,642,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,702,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenRoyalOaksTwoMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Stonebridge [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,016,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 7,137,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 3,637,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,016,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 10,774,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 11,790,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,822,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 4,968,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenStonebridgeMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1993 |  |  |  |
Current Communities [Member] | Camden Sugar Grove [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 7,614,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 27,594,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 1,056,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 7,614,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 28,650,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 36,264,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,138,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 33,126,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenSugarGroveMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2012 |  |  |  |
Current Communities [Member] | Camden Travis Street [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,780,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 29,104,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 274,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,780,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 29,378,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 31,158,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,639,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 24,519,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 21,614,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenTravisStreetMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2010 |  |  |  |
Current Communities [Member] | Camden Vanderbilt [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 16,076,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 44,918,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 17,200,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 16,076,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 62,118,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 78,194,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 35,596,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 42,598,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 73,165,000 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVanderbiltMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 1994/1997 |  |  |  |
Current Communities [Member] | Camden Whispering Oaks [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 1,188,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 26,242,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 369,000 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 1,188,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 26,611,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 27,799,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 6,984,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 20,815,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_CurrentCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenWhisperingOaksMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | 2008 |  |  |  |
Construction Communities [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 568,810,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 568,810,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 568,810,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 2,458,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 566,352,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 0 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember |  |  |  |
Construction Communities [Member] | Camden Chandler [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 36,448,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 36,448,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 36,448,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 4,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 36,444,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenChandlerMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | Camden Flatirons [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 74,231,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 74,231,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 74,231,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 906,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 73,325,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenFlatironsMember | [1] |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A | [1] |  |  |
Construction Communities [Member] | Camden Gallery [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 28,915,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 28,915,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 28,915,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 28,915,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGalleryMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | Camden Glendale [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 94,797,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 94,797,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 94,797,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 3,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 94,794,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenGlendaleMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | Camden Hayden [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 41,085,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 41,085,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 41,085,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 84,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 41,001,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenHaydenMember | [1] |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A | [1] |  |  |
Construction Communities [Member] | Camden La Frontera [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 34,949,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 34,949,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 34,949,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 416,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 34,533,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLaFronteraMember | [1] |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A | [1] |  |  |
Construction Communities [Member] | Camden Lamar Heights [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 45,564,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 45,564,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 45,564,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 470,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 45,094,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLamarHeightsMember | [1] |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A | [1] |  |  |
Construction Communities [Member] | Camden Lincoln Station [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 8,403,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 8,403,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 8,403,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 8,403,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenLincolnStationMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | Camden McGowen Station [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 11,214,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 11,214,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 11,214,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 11,214,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenMcgowenStationMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | Camden Paces [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 98,337,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 98,337,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 98,337,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 568,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 97,769,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenPacesMember | [1] |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A | [1] |  |  |
Construction Communities [Member] | Camden Victory Park [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 33,169,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 33,169,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 33,169,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 7,000 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 33,162,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenVictoryParkMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Construction Communities [Member] | The Camden [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 61,698,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 61,698,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 61,698,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 61,698,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalConstructionCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_TheCamdenMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Development Pipeline Communities [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 105,716,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 105,716,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 105,716,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 105,716,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | 0 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember |  |  |  |
Development Pipeline Communities [Member] | Camden Atlantic [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 12,759,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 12,759,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 12,759,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 12,759,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenAtlanticMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Development Pipeline Communities [Member] | Camden Buckhead [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 20,908,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 20,908,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 20,908,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 20,908,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenBuckheadMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Development Pipeline Communities [Member] | Camden Conte [Domain] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 18,303,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 18,303,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 18,303,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 18,303,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenConteDomain |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Development Pipeline Communities [Member] | Camden NoMa II [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 22,149,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 22,149,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 22,149,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 22,149,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenNOMAIIMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Development Pipeline Communities [Member] | Camden Shady Grove [Member] [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 31,597,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 31,597,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 31,597,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 31,597,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_DevelopmentPipelineCommunitiesMember / us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis = cpt_CamdenShadyGroveMemberMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Land Holdings [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 10,550,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 10,550,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 10,550,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 10,550,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_LandHoldingsMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Corporate [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 3,413,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 3,413,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 3,413,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation |  |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 3,413,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = us-gaap_CorporateMember |  |  |  |
Real Estate And Accumulated Depreciation Construction Completion Or Acquisition Date | N/A |  |  |  |
Total Land Holdings and Corporate [Member] |  |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements | 13,963,000 us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements | 0 us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land | 0 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements | 13,963,000 us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Carrying Amount of Land and Buildings and Improvements | 13,963,000 us-gaap_RealEstateGrossAtCarryingValue / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Accumulated Depreciation | 0 us-gaap_RealEstateAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate And Accumulated Depreciation Total Cost Of Real Estate Assets Net Of Accumulated Depreciation | 13,963,000 cpt_RealEstateAndAccumulatedDepreciationTotalCostOfRealEstateAssetsNetOfAccumulatedDepreciation / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
Real Estate and Accumulated Depreciation, Amount of Encumbrances | $ 0 us-gaap_RealEstateAndAccumulatedDepreciationAmountOfEncumbrances / us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis = cpt_TotalLandHoldingsAndCorporateMember |  |  |  |
[1] | Properties are in lease-up at December 31, 2014. Balances presented here includes costs which are included in buildings and improvements and land on the consolidated balance sheet at December 31, 2014. These costs related to completed unit turns for these properties.

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- Definition Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28.FN4) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 28 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule III -Article 5 + Details
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- Definition Amount of lien or mortgage outstanding on real estate investment properties for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28) -URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule III) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 28 -Article 12 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Subparagraph Schedule III -Article 5 + Details
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