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Dispositions and Assets Held for Sale (Summary of Income from Discontinued Operations) (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2010	Jun. 30, 2010
Dispositions and Assets Held for Sale
Property revenues	$ 2,826	$ 5,580
Property expenses	1,082	2,293
Operating income	1,744	3,287
Depreciation and amortization	780	1,625
Income from discontinued operations	$ 964	$ 1,662

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- Definition

Discontinued Operations and Assets Held for Sale.

+ Details

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- Definition

Disposal Group Including Discontinued Operation Depreciation And Amortization.

+ Details

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Namespace Prefix:	cpt
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X

- Definition

After tax income (loss) from operations of a business component (exclusive of any gain or loss on disposal, or provision therefore) during the reporting period, until its disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 43

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c

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- Definition

Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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- Definition

Amount of operating income or loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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- Definition

Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 47
-Subparagraph c

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