The value of share awards reclassed from additional paid in capital into temporary equity following amendment of the Non-Qualified Deferred Compensation plan permitting diversification of awards into other equity securities subject to a six month holding period and at the holders’ option.

No definition available.

Consolidated Statements Of Equity And Perpetual Preferred Units (USD $)	Total	Common Shares Of Beneficial Interest	Additional Paid-In Capital	Distributions In Excess Of Net Income	Treasury Shares, At Cost	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests	Perpetual Preferred Units
Equity, Beginning Balance at Dec. 31, 2011	$ 1,827,768,000	$ 845,000	$ 2,901,024,000	$ (690,466,000)	$ (452,003,000)	$ (683,000)	$ 69,051,000
Perpetual Preferred Units, Beginning Balance at Dec. 31, 2011								97,925,000
Net Income	291,049,000			283,390,000			7,659,000	2,851,000
Other comprehensive loss	(379,000)					(379,000)
Common shares issued	693,355,000	112,000	693,243,000
Net share awards	15,146,000		1,008,000		14,138,000
Employee share purchase plan	1,334,000		617,000		717,000
Common share options exercised	13,966,000		2,173,000		11,793,000
Conversions and redemptions of operating partnership units	(149,000)	6,000	8,988,000				(9,143,000)
Cash distributions declared to perpetual preferred units								(776,000)
Cash distributions declared to equity holders	(198,900,000)us-gaap_DividendsCommonStockCash			(191,875,000)			(7,025,000)
Redemption of perpetual preferred units	(100,000,000)cpt_RedemptionOfPerpetualPreferredUnits							(100,000,000)
Purchase of non-controlling interests	(16,482,000)		(19,549,000)				(3,067,000)
Other	0us-gaap_StockholdersEquityOther	(1,000)	1,000
Equity, Ending Balance at Dec. 31, 2012	2,626,708,000	962,000	3,587,505,000	(598,951,000)	(425,355,000)	(1,062,000)	63,609,000
Perpetual Preferred Units, Ending Balance at Dec. 31, 2012								0
Net Income	346,291,000			336,364,000			9,927,000
Other comprehensive loss	(44,000)					(44,000)
Common shares issued	40,044,000	6,000	40,038,000
Net share awards	17,578,000	(1,000)	4,921,000		12,658,000
Employee share purchase plan	918,000		449,000		469,000
Common share options exercised	2,842,000		841,000		2,001,000
Change in classification of deferred compensation plan	(37,958,000)		(37,958,000)
Change in redemption value of non-qualified share awards	(9,575,000)			(9,575,000)
Diversification of share awards within deferred compensation plan	353,000		221,000	132,000
Conversions and redemptions of operating partnership units	(52,000)		52,000				(104,000)
Cash distributions declared to equity holders	(226,924,000)us-gaap_DividendsCommonStockCash			(222,137,000)			(4,787,000)
Redemption of perpetual preferred units	0cpt_RedemptionOfPerpetualPreferredUnits
Equity, Ending Balance at Dec. 31, 2013	2,760,181,000	967,000	3,596,069,000	(494,167,000)	(410,227,000)	(1,106,000)	68,645,000
Perpetual Preferred Units, Ending Balance at Dec. 31, 2013								0
Net Income	301,314,000			292,089,000			9,225,000
Other comprehensive loss	(1,313,000)					(1,313,000)
Common shares issued	66,225,000	9,000	66,216,000
Net share awards	19,368,000		8,010,000		11,358,000
Employee share purchase plan	2,271,000		1,012,000		1,259,000
Common share options exercised	1,502,000	1,000	517,000		984,000
Change in classification of deferred compensation plan	(7,702,000)		(7,702,000)
Change in redemption value of non-qualified share awards	(17,921,000)			(17,921,000)
Diversification of share awards within deferred compensation plan	4,669,000		3,273,000	1,396,000
Conversions and redemptions of operating partnership units	0	0	52,000				(52,000)
Cash distributions declared to equity holders	(240,185,000)us-gaap_DividendsCommonStockCash			(235,174,000)			(5,011,000)
Redemption of perpetual preferred units	0cpt_RedemptionOfPerpetualPreferredUnits
Other		(1,000)	1,000
Equity, Ending Balance at Dec. 31, 2014	$ 2,888,409,000	$ 976,000	$ 3,667,448,000	$ (453,777,000)	$ (396,626,000)	$ (2,419,000)	$ 72,807,000