Number of operating properties acquired which are now fully consolidated during the period.

No definition available.

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Namespace Prefix:	cpt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfUnitsInRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

+ Details

Name:	us-gaap_PaymentsToAcquireRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cpt_CamdenOldTownScottsdaleMember
Namespace Prefix:
Data Type:	na
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
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Acquisitions (Narrative) (Details) $ in Thousands			1 Months Ended		3 Months Ended
Acquisitions (Narrative) (Details) $ in Thousands	Feb. 15, 2018 USD ($)	Jan. 11, 2018 USD ($)	May 03, 2019 USD ($)	Feb. 28, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	May 01, 2019	Apr. 26, 2019 USD ($)	Apr. 01, 2019 a
Purchase Price of Operating Properties Acquired					$ 94,885	$ 201,899
Camden Rainey Street [Member] \| Subsequent Event [Member]
Number of Operating properties Acquired			1
Number of Units in Real Estate Property							326
Purchase Price of Operating Properties Acquired			$ 120,400
Camden Old Town Scottsdale [Member]
Number of Operating properties Acquired				1
Number of Units in Real Estate Property				316
Purchase Price of Operating Properties Acquired				$ 97,100
Camden Pier District [Member]
Number of Operating properties Acquired		1
Number of Units in Real Estate Property		358
Purchase Price of Operating Properties Acquired		$ 126,900
Camden North Quarter [Member]
Number of Operating properties Acquired	1
Number of Units in Real Estate Property	333
Purchase Price of Operating Properties Acquired	$ 81,400
Camden Chadbourne Mill [Member] \| Subsequent Event [Member]
Area of Land \| a									4
Payments to Acquire Land			$ 10,900
Number of Units in Real Estate Property								0