10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

Q QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2012

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                    to                                        

Commission file number: 1-12110

CAMDEN PROPERTY TRUST

(Exact Name of Registrant as Specified in Its Charter)

Texas	76-6088377
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
3 Greenway Plaza, Suite 1300 Houston, Texas	77046
(Address of principal executive offices)	(Zip Code)

(713) 354-2500

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name, Former Address and Former Fiscal Year, If Changed Since Last Report)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  Q    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  Q    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer	Q	Accelerated filer	¨
Non-accelerated filer	¨	Smaller Reporting Company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  Q

On October 26, 2012, 84,115,681 common shares of the registrant were outstanding, net of treasury shares and shares held in our deferred compensation arrangements.

CAMDEN PROPERTY TRUST

Table of Contents

		Page
PART I	FINANCIAL INFORMATION	3
Item 1	Financial Statements	3
	Condensed Consolidated Balance Sheets (Unaudited) as of September 30, 2012 and December 31, 2011	3
	Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) for the three and nine months ended September 30, 2012 and 2011	4
	Condensed Consolidated Statements of Equity and Perpetual Preferred Units (Unaudited) for the nine months ended September 30, 2012 and 2011	6
	Condensed Consolidated Statements of Cash Flows (Unaudited) for the nine months ended September 30, 2012 and 2011	8
	Notes to Condensed Consolidated Financial Statements (Unaudited)	10
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	27
Item 3	Quantitative and Qualitative Disclosures About Market Risk	44
Item 4	Controls and Procedures	44
Part II	OTHER INFORMATION	44
Item 1	Legal Proceedings	44
Item 1A	Risk Factors	44
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	45
Item 3	Defaults Upon Senior Securities	45
Item 4	Mine Safety Disclosures	45
Item 5	Other Information	45
Item 6	Exhibits	46
SIGNATURES
Exhibit 31.1
Exhibit 31.2
Exhibit 32.1
Exhibit 101.INS
Exhibit 101.SCH
Exhibit 101.CAL
Exhibit 101.DEF
Exhibit 101.LAB
Exhibit 101.PRE

2

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

(in thousands, except per share amounts)	September 30, 2012			December 31, 2011
Assets
Real estate assets, at cost
Land	$	929,289		$	768,016
Buildings and improvements	5,359,707			4,751,654
	6,288,996			5,519,670
Accumulated depreciation	(1,542,530		)	(1,432,799		)
Net operating real estate assets	4,746,466			4,086,871
Properties under development, including land	280,948			299,870
Investments in joint ventures	46,566			44,844
Properties held for sale	6,373			11,131
Total real estate assets	5,080,353			4,442,716
Accounts receivable – affiliates	28,874			31,035
Other assets, net	96,401			88,089
Cash and cash equivalents	5,590			55,159
Restricted cash	6,742			5,076
Total assets	$	5,217,960		$	4,622,075
Liabilities and equity
Liabilities
Notes payable
Unsecured	$	1,415,354		$	1,380,755
Secured	978,371			1,051,357
Accounts payable and accrued expenses	118,879			93,747
Accrued real estate taxes	43,757			21,883
Distributions payable	49,940			39,364
Other liabilities	78,551			109,276
Total liabilities	2,684,852			2,696,382
Commitments and contingencies
Perpetual preferred units	—			97,925
Equity
Common shares of beneficial interest; $0.01 par value per share; 175,000 and 100,000 shares authorized; 98,974 and 87,377 issued; 95,867 and 84,517 outstanding at September 30, 2012 and December 31, 2011, respectively	959			845
Additional paid-in capital	3,580,528			2,901,024
Distributions in excess of net income attributable to common shareholders	(692,235		)	(690,466		)
Treasury shares, at cost (11,782 and 12,509 common shares at September 30, 2012 and December 31, 2011, respectively)	(425,756		)	(452,003		)
Accumulated other comprehensive loss	(660		)	(683		)
Total common equity	2,462,836			1,758,717
Noncontrolling interests	70,272			69,051
Total equity	2,533,108			1,827,768
Total liabilities and equity	$	5,217,960		$	4,622,075

See Notes to Condensed Consolidated Financial Statements.

3

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

AND COMPREHENSIVE INCOME

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2012			2011			2012			2011
Property revenues
Rental revenues	$	166,179		$	140,332		$	477,501		$	412,794
Other property revenues	28,025			23,892			79,322			68,605
Total property revenues	194,204			164,224			556,823			481,399
Property expenses
Property operating and maintenance	54,008			48,731			153,491			138,974
Real estate taxes	19,096			16,892			56,586			51,596
Total property expenses	73,104			65,623			210,077			190,570
Non-property income
Fee and asset management	3,041			2,646			9,572			6,955
Interest and other income (loss)	3			(108		)	(750		)	4,749
Income (loss) on deferred compensation plans	(1,781		)	(6,096		)	3,820			1,233
Total non-property income (loss)	1,263			(3,558		)	12,642			12,937
Other expenses
Property management	5,509			5,050			15,644			15,478
Fee and asset management	1,864			1,330			5,051			4,220
General and administrative	9,303			8,572			27,712			26,392
Interest	25,865			27,354			78,795			85,472
Depreciation and amortization	52,588			43,367			155,579			133,547
Amortization of deferred financing costs	909			1,344			2,721			4,761
Expense (benefit) on deferred compensation plans	(1,781		)	(6,096		)	3,820			1,233
Total other expenses	94,257			80,921			289,322			271,103
Gain on acquisition of controlling interest in joint ventures	—			—			40,191			—
Gain on sale of properties, including land	—			—			—			4,748
Gain on sale of unconsolidated joint venture interests	—			—			—			1,136
Loss on discontinuation of hedging relationship	—			—			—			(29,791		)
Equity in income (loss) of joint ventures	3,688			(556		)	4,686			(166		)
Income from continuing operations before income taxes	31,794			13,566			114,943			8,590
Income tax expense – current	(334		)	(313		)	(992		)	(1,889		)
Income from continuing operations	31,460			13,253			113,951			6,701
Income from discontinued operations	343			1,098			1,262			3,196
Gain on sale of discontinued operations, net of tax	—			—			32,541			—
Net income	31,803			14,351			147,754			9,897
Less income allocated to noncontrolling interests from continuing operations	(1,100		)	(752		)	(3,009		)	(2,089		)
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	—			(9		)	(670		)	(29		)
Less income allocated to perpetual preferred units	—			(1,750		)	(776		)	(5,250		)
Less write off of original issuance costs of redeemed perpetual preferred units	—			—			(2,075		)	—
Net income attributable to common shareholders	$	30,703		$	11,840		$	141,224		$	2,529

See Notes to Condensed Consolidated Financial Statements.

4

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

AND COMPREHENSIVE INCOME (continued)

(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2012			2011			2012			2011
Earnings per share – basic
Income (loss) from continuing operations attributable to common shareholders	$	0.35		$	0.14		$	1.29		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders	0.01			0.02			0.40			0.04
Net income attributable to common shareholders	$	0.36		$	0.16		$	1.69		$	0.03
Earnings per share – diluted
Income (loss) from continuing operations attributable to common shareholders	$	0.35		$	0.14		$	1.27		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders	—			0.02			0.39			0.04
Net income attributable to common shareholders	$	0.35		$	0.16		$	1.66		$	0.03
Distributions declared per common share	$	0.56		$	0.49		$	1.68		$	1.47
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Weighted average number of common shares outstanding – diluted	86,293			74,274			84,694			72,502
Net income attributable to common shareholders
Income from continuing operations	$	31,460		$	13,253		$	113,951		$	6,701
Less income allocated to noncontrolling interests from continuing operations	(1,100		)	(752		)	(3,009		)	(2,089		)
Less income allocated to perpetual preferred units	—			(1,750		)	(776		)	(5,250		)
Less write off of original issuance costs of redeemed perpetual preferred units	—			—			(2,075		)	—
Income (loss) from continuing operations attributable to common shareholders	30,360			10,751			108,091			(638		)
Income from discontinued operations, including gain on sale	343			1,098			33,803			3,196
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	—			(9		)	(670		)	(29		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders	$	30,703		$	11,840		$	141,224		$	2,529
Condensed Consolidated Statements of Comprehensive Income:
Net income	$	31,803		$	14,351		$	147,754		$	9,897
Other comprehensive income
Unrealized loss on cash flow hedging activities	—			—			—			(2,692		)
Reclassification of net losses on cash flow hedging activities	—			108			—			39,660
Reclassification of gain on available-for-sale investment to earnings, net of tax	—			—			—			(3,309		)
Reclassification of prior service cost on post retirement obligations	7			—			23			—
Comprehensive income	31,810			14,459			147,777			43,556
Less income allocated to noncontrolling interests from continuing operations	(1,100		)	(752		)	(3,009		)	(2,089		)
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	—			(9		)	(670		)	(29		)
Less income allocated to perpetual preferred units	—			(1,750		)	(776		)	(5,250		)
Less write off of original issuance costs of redeemed perpetual preferred units	—			—			(2,075		)	—
Comprehensive income attributable to common shareholders	$	30,710		$	11,948		$	141,247		$	36,188

See Notes to Condensed Consolidated Financial Statements.

5

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY AND PERPETUAL PREFERRED UNITS

(Unaudited)

	Common Shareholders
(in thousands)	Common shares of beneficial interest		Additional paid-in capital			Distributions in excess of net income			Treasury shares, at cost			Accumulated other comprehensive loss			Noncontrolling interests			Total equity			Perpetual preferred units
December 31, 2011	$	845	$	2,901,024		$	(690,466	)	$	(452,003	)	$	(683	)	$	69,051		$	1,827,768		$	97,925
Net income						141,224									3,679			144,903			2,851
Other comprehensive income												23						23
Common shares issued	112		693,263															693,375
Net share awards			(2,477		)				14,096									11,619
Employee stock purchase plan			613						718									1,331
Common share options exercised			1,840						11,433									13,273
Conversions of operating partnership units	2		(450		)										448
Cash distributions declared to perpetual preferred units																					(776		)
Cash distributions declared to equity holders						(142,993		)							(5,950		)	(148,943		)
Redemption of perpetual preferred units																					(100,000		)
Purchase of noncontrolling interests			(13,285		)										3,044			(10,241		)
September 30, 2012	$	959	$	3,580,528		$	(692,235	)	$	(425,756	)	$	(660	)	$	70,272		$	2,533,108		$	—

See Notes to Condensed Consolidated Financial Statements.

6

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY AND PERPETUAL PREFERRED UNITS (continued)

(Unaudited)

	Common Shareholders
(in thousands)	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			Total equity			Perpetual preferred units
December 31, 2010	$	824		$	2,775,625	$	(595,317	)	$	(461,255	)	$	(33,458	)	$	70,954		$	1,757,373		$	97,925
Net income						2,529									2,118			4,647			5,250
Other comprehensive income												33,659						33,659
Common shares issued	11			69,852														69,863
Net share awards	4			9,597					703									10,304
Employee stock purchase plan				482					1,335									1,817
Common share options exercised	1			4,990					6,973									11,964
Conversions of operating partnership units	1			591											(592		)
Cash distributions declared to perpetual preferred units																					(5,250		)
Cash distributions declared to equity holders						(108,109		)							(3,669		)	(111,778		)
Other	(2		)	2
September 30, 2011	$	839		$	2,861,139	$	(700,897	)	$	(452,244	)	$	201		$	68,811		$	1,777,849		$	97,925

See Notes to Condensed Consolidated Financial Statements.

7

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	Nine Months Ended
	September 30,
(in thousands)	2012			2011
Cash flows from operating activities
Net income	$	147,754		$	9,897
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization, including discontinued operations	156,423			136,733
Gain on acquisition of controlling interest in joint ventures	(40,191		)	—
Gain on sale of discontinued operations, net of tax	(32,541		)	—
Gain on sale of properties, including land	—			(4,748		)
Gain on sale of unconsolidated joint venture interests	—			(1,136		)
Gain on sale of available-for-sale investment	—			(4,301		)
Loss on discontinuation of hedging relationship	—			29,791
Distributions of income from joint ventures	3,064			3,673
Equity in (income) loss of joint ventures	(4,686		)	166
Share-based compensation	9,950			9,254
Amortization of deferred financing costs	2,721			4,761
Net change in operating accounts and other	7,501			16,707
Net cash from operating activities	249,995			200,797
Cash flows from investing activities
Development and capital improvements	(202,730		)	(155,077		)
Acquisition of operating properties, including joint venture interests, net of cash acquired	(305,258		)	—
Proceeds from sale of properties, including land and discontinued operations	54,125			19,095
Proceeds from sale of joint venture interests	—			19,310
Proceeds from sale of available-for-sale investment	—			4,510
Decrease in notes receivable – affiliates	—			3,279
Investments in joint ventures	(6,706		)	(35,280		)
Distributions of investments from joint ventures	9,230			2,453
Other	(7,104		)	(4,464		)
Net cash from investing activities	(458,443		)	(146,174		)
Cash flows from financing activities
Borrowings on unsecured line of credit	79,000			—
Repayments on unsecured line of credit	(45,000		)	—
Repayment of notes payable	(345,592		)	(626,432		)
Proceeds from notes payable	—			495,705
Proceeds from issuance of common shares	693,375			69,863
Redemption of perpetual preferred units	(100,000		)	—
Distributions to common shareholders, perpetual preferred units and noncontrolling interests	(138,641		)	(112,932		)
Payment of deferred financing costs	(757		)	(8,776		)
Common share options exercised	12,575			11,267
Net decrease in accounts receivable – affiliates	2,165			500
Other	1,754			1,706
Net cash from financing activities	158,879			(169,099		)
Net decrease in cash and cash equivalents	(49,569		)	(114,476		)
Cash and cash equivalents, beginning of period	55,159			170,575
Cash and cash equivalents, end of period	$	5,590		$	56,099
Supplemental information
Cash paid for interest, net of interest capitalized	$	61,120		$	69,043
Cash paid for income taxes	1,548			1,903

See Notes to Condensed Consolidated Financial Statements.

8

CAMDEN PROPERTY TRUST

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

(Unaudited)

	Nine Months Ended
	September 30,
(in thousands)	2012		2011
Supplemental schedule of noncash investing and financing activities
Distributions declared but not paid	$	49,940	$	39,319
Value of shares issued under benefit plans, net of cancellations	21,226		18,912
Conversion of operating partnership units to common shares	447		592
Accrual associated with construction and capital expenditures	14,428		12,557
Amount payable for purchase of noncontrolling interest	10,241		—
Acquisition of operating properties, including joint venture interests:
Mortgage debt assumed	272,606		—
Other liabilities assumed	6,640		—

See Notes to Condensed Consolidated Financial Statements.

9

CAMDEN PROPERTY TRUST

Notes to Condensed Consolidated Financial Statements

(Unaudited)

1. Description of Business

Business. Formed on May 25, 1993, Camden Property Trust, a Texas real estate investment trust (“REIT”), is primarily engaged in the ownership, management, development, acquisition, and construction of multifamily apartment communities. Our multifamily apartment communities are referred to as “communities,” “multifamily communities,” “properties,” or “multifamily properties” in the following discussion. As of September 30, 2012, we owned interests in, operated, or were developing 209 multifamily properties comprising 70,871 apartment homes across the United States. Of the 209 properties, six properties were under development, and when completed will consist of a total of 2,040 apartment homes. In addition, we own land parcels we may develop into multifamily apartment communities in the future.

2. Summary of Significant Accounting Policies and Recent Accounting Pronouncements

Principles of Consolidation. Our condensed consolidated financial statements include our accounts and the accounts of other subsidiaries and joint ventures (including partnerships and limited liability companies) over which we have control. All intercompany transactions, balances, and profits have been eliminated in consolidation. Investments acquired or created are continuously evaluated based on the accounting guidance relating to variable interest entities (“VIEs”), which requires the consolidation of VIEs in which we are considered to be the primary beneficiary. If the investment is determined not to be a VIE, then the investment is evaluated for consolidation (primarily using a voting interest model) under the remaining consolidation guidance relating to real estate entities. If we are the general partner of a limited partnership, or manager of a limited liability company, we also consider the consolidation guidance relating to the rights of limited partners (non-managing members) to assess whether any rights held by the limited partners overcome the presumption of control by us.

Interim Financial Reporting. We have prepared these financial statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial statements and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, these statements do not include all information and footnote disclosures required for annual statements. While we believe the disclosures presented are adequate for interim reporting, these interim financial statements should be read in conjunction with the audited financial statements and notes included in our 2011 Annual Report on Form 10-K. In the opinion of management, all adjustments and eliminations, consisting of normal recurring adjustments, necessary for a fair representation of our financial statements for the interim period reported have been included. Operating results for the three and nine months ended September 30, 2012 are not necessarily indicative of the results which may be expected for the full year.

Allocations of Purchase Price. Upon acquisition of real estate, we allocate the fair value between tangible and intangible assets, which includes land, buildings (as-if-vacant), furniture and fixtures, the value of in-place leases, including above and below market leases, and acquired liabilities. In allocating these values we apply methods similar to those used by independent appraisers of income-producing property. Upon the acquisition of a controlling interest of an investment in an unconsolidated joint venture, such joint venture is consolidated and our initial equity investment is remeasured to fair value at the date the controlling interest is acquired; any differences between the carrying value and the fair value of the previously held equity investment is recognized in earnings at the time of obtaining control. Transaction costs associated with the acquisition of operating real estate assets are expensed. Depreciation is computed on a straight-line basis over the remaining useful lives of the related tangible assets. The value of in-place leases and above or below market leases is amortized over the estimated average remaining life of leases in place at the time of acquisition. The unamortized value of in-place leases at September 30, 2012 was approximately $3.3 million and is included in other assets, net, in our condensed consolidated balance sheet. The unamortized value of above or below market leases at September 30, 2012 was $0.2 million and is included in other liabilities in our condensed consolidated balance sheet. Estimates of fair value of acquired debt are based upon interest rates available for the issuance of debt with similar terms and remaining maturities.

Asset Impairment. Long-lived assets are reviewed for impairment annually or whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Impairment exists if estimated future undiscounted cash flows associated with long-lived assets are not sufficient to recover the carrying value of such assets. We consider projected future discounted and undiscounted cash flows, trends, strategic decisions regarding future development plans, and other factors in our assessment of whether impairment conditions exist. When impairment exists, the long-lived asset is adjusted to its fair value. While we believe our estimates of future cash flows are reasonable, different assumptions regarding a number of factors, including market rents, economic conditions, and occupancies, could significantly affect these estimates. In estimating fair value, management uses appraisals, management estimates, and discounted cash flow calculations which maximize inputs from a marketplace participant’s perspective. In addition, we evaluate our equity investments in joint ventures and if we believe there is an other than

10

temporary decline in market value of our investment below our carrying value, we will record an impairment charge.

The value of our properties under development depends on market conditions, including estimates of the project start date as well as estimates of demand for multifamily communities. We have reviewed market trends and other marketplace information and have incorporated this information as well as our current outlook into the assumptions we use in our impairment analyses. Due to the judgment and assumptions applied in the impairment analyses, it is possible actual results could differ substantially from those estimated.

We believe the carrying value of our operating real estate assets, properties under development, and land is currently recoverable. However, if market conditions deteriorate or if changes in our development strategy significantly affect any key assumptions used in our fair value estimates, we may need to take material charges in future periods for impairments related to existing assets. Any such material non-cash charges could have an adverse effect on our consolidated financial position and results of operations.

Cost Capitalization. Real estate assets are carried at cost plus capitalized carrying charges. Carrying charges are primarily interest and real estate taxes which are capitalized as part of properties under development. Capitalized interest is generally based on the weighted average interest rate of our unsecured debt. Expenditures directly related to the development and improvement of real estate assets are capitalized at cost as land and buildings and improvements. Indirect development costs, including salaries and benefits and other related costs directly attributable to the development of properties, are also capitalized. We begin capitalizing development, construction, and carrying costs when the development of the future real estate asset is probable and activities necessary to get the underlying real estate asset ready for its intended use have been initiated. All construction and carrying costs are capitalized and reported in the balance sheet as properties under development until the apartment homes are substantially completed. Upon substantial completion of the apartment homes, the total capitalized development cost for the apartment homes and the associated land is transferred to buildings and improvements and land, respectively.

As discussed above, carrying charges are principally interest and real estate taxes capitalized as part of properties under development. Capitalized interest was approximately $3.1 million and $9.4 million for the three and nine months ended September 30, 2012, respectively, and approximately $2.5 million and $6.1 million for the three and nine months ended September 30, 2011, respectively. Capitalized real estate taxes were approximately $0.7 million and $2.1 million for the three and nine months ended September 30, 2012, respectively, and approximately $0.4 million and $1.0 million for the three and nine months ended September 30, 2011, respectively.

Where possible, we stage our construction to allow leasing and occupancy during the construction period, which we believe minimizes the duration of the lease-up period following completion of construction. Our accounting policy related to properties in the development and leasing phase is to expense all operating expenses associated with completed apartment homes. We capitalize renovation and improvement costs we believe extend the economic lives of depreciable property. Capital expenditures subsequent to initial construction are capitalized and depreciated over their estimated useful lives.

Depreciation and amortization is computed over the expected useful lives of depreciable property on a straight-line basis with lives generally as follows:

	Estimated Useful Life
Buildings and improvements	5-35 years
Furniture, fixtures, equipment, and other	3-20 years
Intangible assets (in-place leases and above and below market leases)	underlying lease term

Discontinued Operations. A property is classified as a discontinued operation when (i) the operations and cash flows of the property can be clearly distinguished and have been or will be eliminated from our ongoing operations; (ii) the property has either been disposed of or is classified as held for sale; and (iii) we will not have any significant continuing involvement in the operations of the property after the disposal transactions. Significant judgments are involved in determining whether a property meets the criteria for discontinued operations reporting and the period in which these criteria are met. A property is classified as held for sale when (i) management commits to a plan to sell and it is actively marketed; (ii) it is available for immediate sale in its present condition and the sale is expected to be completed within one year; and (iii) it is unlikely significant changes to the plan will be made or the plan will be withdrawn.

The results of operations for properties sold during the period or classified as held for sale at the end of the current period

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are classified as discontinued operations in the current and prior periods. The property-specific components of earnings classified as discontinued operations include separately identifiable property-specific revenues, expenses, depreciation, and interest expense, if any. The gain or loss resulting from the eventual disposal of the held for sale properties is also classified within discontinued operations. Real estate assets held for sale are measured at the lower of carrying amount or fair value less costs to sell and are presented separately in the accompanying consolidated balance sheets. Subsequent to classification of a property as held for sale, no further depreciation is recorded. Properties sold by our unconsolidated entities are not included in discontinued operations and related gains or losses are reported as a component of equity in income (loss) of joint ventures.

Gains on sale of real estate are recognized using the full accrual or partial sale methods, as applicable, in accordance with GAAP, provided various criteria relating to the terms of sale and any subsequent involvement with the real estate sold are satisfied.

Fair Value. For financial assets and liabilities recorded at fair value on a recurring or nonrecurring basis, fair value is the price we would receive to sell an asset, or pay to transfer a liability, in an orderly transaction with a market participant at the measurement date. In the absence of such data, fair value is estimated using internal information consistent with what market participants would use in a hypothetical transaction.

In determining fair value, observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions; preference is given to observable inputs. These two types of inputs create the following fair value hierarchy:

• Level 1:    Quoted prices for identical instruments in active markets.

• Level 2:    Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3: Significant inputs to the valuation model are unobservable.

Recurring Fair Value Disclosures. The following describes the valuation methodologies we use to measure different financial instruments at fair value on a recurring basis:

Deferred Compensation Plan Investments. The estimated fair values of investment securities classified as deferred compensation plan investments are based on quoted market prices utilizing public information for the same transactions. Our deferred compensation plan investments are recorded in other assets in our consolidated balance sheets.

Derivative Financial Instruments. The estimated fair values of derivative financial instruments are valued using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and volatility. The fair values of interest rate swaps and caps are estimated using the market standard methodology of netting the discounted fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of interest rates (forward curves) derived from observable market interest rate curves. In addition, credit valuation adjustments, which consider the impact of any credit enhancements to the contracts, are incorporated in the fair values to account for potential nonperformance risk, including our own nonperformance risk and the respective counterparty's nonperformance risk. The fair value of interest rate caps is determined using the market standard methodology of discounting the future expected cash receipts which would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observed market interest rate curves and volatilities.

Although we have determined the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default. However, we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and have determined the credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we have determined our derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Financial Instrument Fair Value Disclosures. In calculating the fair value of our notes payable, interest rates and spreads reflect current creditworthiness and market conditions available for the issuance of notes payable with similar terms and remaining

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maturities. These financial instruments utilize Level 2 inputs.

Non-recurring Fair Value Disclosures. Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances. These assets primarily include long-lived assets which are recorded at fair value when they are impaired. The fair value methodologies used to measure long-lived assets are described above at “Asset Impairment.” The inputs associated with the valuation of long-lived assets are generally included in Level 3 of the fair value hierarchy.

Recent Accounting Pronouncements. In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2011-04 (“ASU 2011-04”), “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS.” ASU 2011-04 requires entities to separately disclose the amounts and reasons for any transfers of assets and liabilities into and out of Level 1 and Level 2 of the fair value hierarchy. For fair value measurements using significant unobservable inputs (Level 3), entities are required to disclose quantitative information about the significant unobservable inputs used for all Level 3 measurements and a description of the valuation processes in determining fair value. In addition, ASU 2011-04 requires entities to provide a qualitative discussion about the sensitivity of recurring Level 3 measurements to changes in the unobservable inputs disclosed, including the interrelationship between inputs. Entities are also required to disclose information about when the current use of a non-financial asset measured at fair value differs from its highest and best use and the hierarchy classification for items whose fair value is not recorded in the balance sheet but is disclosed in the notes. We did not have any changes to our existing classification and measurement of fair value upon adoption on January 1, 2012. Refer to Note 14, "Fair Value Disclosures" and the fair value discussion above for additional disclosures resulting from the adoption of this standard.

In June 2011, the FASB issued Accounting Standards Update 2011-05 (“ASU 2011-05”), “Presentation of Comprehensive Income.” ASU 2011-05 requires all nonowner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Subsequent to the issuance of ASU 2011-05, the FASB issued Accounting Standards Update 2011-12 (“ASU 2011-12”), “Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in ASU 2011-05” which indefinitely defers the ASU 2011-05 requirement for an entity to present reclassification adjustments on the face of the financial statements from other comprehensive income to net income. We adopted ASU 2011-05 and ASU 2011-12 on January 1, 2012, and these adoptions did not have a material effect on our financial statements.

3. Per Share Data

Basic earnings per share are computed using net income attributable to common shareholders and the weighted average number of common shares outstanding. Diluted earnings per share reflect common shares issuable from the assumed conversion of common share options and share awards granted and units convertible into common shares. Only those items having a dilutive impact on our basic earnings per share are included in diluted earnings per share. Our unvested share-based awards are considered participating securities and are reflected in the calculation of basic and diluted earnings per share using the two-class method. The number of common share equivalent securities excluded from the diluted earnings per share calculation was approximately 3.3 million and 3.7 million for the three months ended September 30, 2012 and 2011, respectively, and was approximately 2.4 million and 4.8 million for the nine months ended September 30, 2012 and 2011, respectively. These securities, which include common share options and share awards granted and units convertible into common shares, were excluded from the diluted earnings per share calculation as they are anti-dilutive.

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The following table presents information necessary to calculate basic and diluted earnings per share for the periods indicated:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2012			2011			2012			2011
Earnings per share calculation – basic
Income (loss) from continuing operations attributable to common shareholders	$	30,360		$	10,751		$	108,091		$	(638	)
Amount allocated to participating securities	(288		)	(154		)	(1,387		)	(118		)
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	30,072			10,597			106,704			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,686		$	139,837		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.29		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	0.01			0.02			0.40			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.36		$	0.16		$	1.69		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Earnings per share calculation – diluted
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	30,072		$	10,597		$	106,704		$	(756	)
Income allocated to common units from continuing operations	—			8			1,167			—
Income (loss) from continuing operations attributable to common shareholders, as adjusted	30,072			10,605			107,871			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,694		$	141,004		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.27		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	—			0.02			0.39			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.35		$	0.16		$	1.66		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	662			793			655			—
Common units	—			239			1,116			—
Weighted average number of common shares outstanding – diluted	86,293			74,274			84,694			72,502

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4. Common Shares

In March 2010, we announced the creation of an at-the-market (“ATM”) share offering program through which we could, but had no obligation to, sell common shares having an aggregate offering price of up to $250 million (the “2010 ATM program”), in amounts and at times as we determined, into the existing trading market at current market prices as well as through negotiated transactions. The 2010 ATM program terminated in the second quarter of 2011, and no further common shares are available for sale under the 2010 ATM program.

In May 2011, we created an ATM share offering program through which we could, but had no obligation to, sell common shares having an aggregate offering price of up to $300 million (the “2011 ATM program”), in amounts and at times as we determined, into the existing trading market at current market prices as well as through negotiated transactions. The net proceeds resulting from the 2011 ATM program were used to redeem all of our outstanding redeemable perpetual preferred units as further discussed in Note 5, "Operating Partnerships," and for other general corporate purposes, which included funding for development activities, financing of acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness. The 2011 ATM program terminated in the second quarter of 2012, and no further common shares are available for sale under the 2011 ATM program.

The following table presents activity under our 2010 and 2011 ATM programs for the periods presented (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 30, 2012		September 30, 2011		September 30, 2012		September 30, 2011
Total net consideration	$	—	$	32,736.8	$	128,128.0	$	69,862.9
Common shares sold	—		506.2		1,971.4		1,127.9
Average price per share	$	—	$	65.76	$	66.01	$	63.13

In May 2012, we created an ATM share offering program through which we can, but have no obligation to, sell common shares having an aggregate offering price of up to $300 million (the "2012 ATM program"), in amounts and at times as we determine, into the existing trading market at current market prices as well as through negotiated transactions. Actual sales from time to time may depend on a variety of factors including, among others, market conditions, the trading price of our common shares, and determinations by management of the appropriate sources of funding for us. We intend to use the net proceeds from the 2012 ATM program for general corporate purposes, which may include funding for development activities, financing of acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness.

The following table presents activity under our 2012 ATM program for the periods presented (in thousands, except per share amounts):

	Three Months Ended		Nine Months Ended
	September 30, 2012		September 30, 2012
Total net consideration	$	88,915.9	$	173,627.6
Common shares sold	1,302.5		2,607.9
Average price per share	$	69.34	$	67.63

As of September 30, 2012, we had common shares having an aggregate offering price of up to $123.6 million remaining available for sale under the 2012 ATM program. No additional shares were sold through the date of this filing.

We currently have an automatic shelf registration statement which allows us to offer, from time to time, an unlimited amount of common shares, preferred shares, debt securities, or warrants. In January 2012, we issued 6,612,500 common shares in a public equity offering and received approximately $391.6 million in net proceeds. We utilized these proceeds to fund the acquisition of the remaining 80% interest we did not own in twelve real estate joint ventures that owned twelve apartment communities, containing 4,034 apartment homes in Dallas, Houston, Las Vegas, Phoenix, and Southern California, becoming sole owner of that portfolio. See Note 6, “Property Acquisitions, Discontinued Operations, and Assets Held for Sale” for further discussion of this transaction.

On May 11, 2012, the shareholders of the Company approved an amendment to our Amended and Restated Declaration of Trust to increase our total number of authorized shares from 110.0 million to 185.0 million shares of beneficial interest, consisting

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of 175.0 million common shares and 10.0 million preferred shares.

5. Operating Partnerships

As of December 31, 2011, Camden Operating, L.P. (“Camden Operating” or the “operating partnership”) had 4.0 million7.0% Series B Cumulative Redeemable Perpetual Preferred Units outstanding. Distributions on the preferred units were payable quarterly in arrears. In February 2012, we redeemed all of these outstanding units at their redemption price of $25.00 per unit, or an aggregate of $100.0 million, plus accrued and unpaid distributions. In connection with this redemption, the unamortized issuance costs relating to these units of approximately $2.1 million were expensed in the first quarter of 2012.

As of December 31, 2011, we held the controlling managing member interest in Oasis Martinique, LLC, which owns one property in Orange County, California and is included in our consolidated financial statements. During the first quarter of 2012, the remaining non-managing member interests, comprising approximately 0.3 million units, were converted to approximately 0.2 million of our common shares, resulting in this entity being wholly-owned by us.

6. Property Acquisitions, Discontinued Operations, and Assets Held for Sale

Acquisitions. In May 2012, we acquired approximately 4.7 acres of land located in Dallas, Texas for approximately $13.4 million. In August 2012, we acquired approximately 12.0 acres of land located in Austin, Texas for approximately $3.3 million. In November 2012, we acquired approximately 2.4 acres of land located in Plantation, Florida for approximately $9.0 million. We intend to utilize these land holdings for development of multifamily apartment communities.

In June 2012, we acquired Camden Belmont comprised of 477 units located in Dallas, Texas for approximately $76.0 million. In July 2012, we acquired Camden Creekstone comprised of 223 units located in Atlanta, Georgia for approximately $25.3 million. In September 2012, we acquired Camden Landmark comprised of 469 units located in Ontario, California for approximately $90.5 million and we acquired Camden Henderson comprised of 106 units located in Dallas, Texas for approximately $19.2 million.

As of December 31, 2011, we held a 20% ownership interest in twelve unconsolidated joint ventures that owned twelve apartment communities, containing 4,034 apartment homes located in Dallas, Houston, Las Vegas, Phoenix, and Southern California. In January 2012, we acquired the remaining 80% ownership interests in these joint ventures for approximately $99.5 million and assumed approximately $272.6 million in mortgage debt associated with these joint ventures, which was subsequently repaid in January 2012. As a result of acquiring a controlling interest in the former unconsolidated joint ventures, our previously held equity interest was remeasured at fair value, resulting in a gain of approximately $40.2 million. The equity was remeasured utilizing the consideration paid for the acquired 80% ownership interest.

The following table summarizes the fair values of the assets acquired and liabilities assumed for the acquisitions of the twelve joint ventures and four operating properties described above as of the respective acquisition/consolidation dates (in millions):

Assets acquired:
	Buildings and improvements	$	460.4
	Land	134.9
	Cash	3.4
	Restricted cash	0.7
	Intangible and other assets	14.5
Total assets acquired		$	613.9
Liabilities assumed:
	Mortgage debt (1)	$	272.6
	Other liabilities	6.6
Total liabilities assumed		$	279.2
	Net assets acquired	$	334.7

(1) Mortgage debt assumed was subsequently repaid in January 2012 at face value.

The related assets, liabilities, and results of operations for these acquisitions are included in the consolidated financial statements from the respective dates of acquisition. There was no contingent consideration associated with these acquisitions.

The twelve former joint ventures and the four operating properties acquired as discussed above contributed revenues of approximately $35.3 million and property expenses of approximately $14.3 million, from their respective acquisition/consolidation

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dates through September 30, 2012.

The following unaudited pro forma summary presents consolidated information assuming the acquisitions/consolidation of the twelve former joint ventures and four operating properties described above had occurred on January 1, 2011. The information below for the three and nine months ended September 30, 2012, contains pro forma results for the respective portions of the periods prior to the respective acquisition/consolidation dates and actual results from the respective dates of acquisition/consolidation through the end of the periods.

	Pro Forma Three Months Ended September 30,				Pro Forma Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
	(unaudited)
Property revenues	$	196,396	$	179,665	$	571,048	$	526,824
Property expenses	74,060		72,541		216,160		211,034
	$	122,336	$	107,124	$	354,888	$	315,790

We owned one apartment community, containing 253 apartment homes, located in Houston, Texas, in a fully-consolidated joint venture, Camden Travis Street, in which we held a 25% ownership interest. On September 30, 2012, we acquired the remaining 75% noncontrolling ownership interest in this joint venture for approximately $10.2 million. The acquisition of the remaining ownership interest was recorded as an equity transaction and, as a result, the carrying balance of the noncontrolling interest was eliminated and the remaining difference between the purchase price and carrying balance was recorded as a reduction in additional-paid-in-capital. See Note 15, "Noncontrolling interests" for the effect of changes in ownership interests of this joint venture on the equity attributable to common shareholders.

Discontinued Operations and Assets Held for Sale. For the three and nine months ended September 30, 2012, income from discontinued operations included the results of operations of three operating properties, Camden Vista Valley, Camden Landings, and Camden Creek, containing 1,033 apartment homes, sold in the first quarter of 2012. Income from discontinued operations for the three and nine months ended September 30, 2012 and 2011 also included the results of operations of two operating properties, Camden Laurel Ridge and Camden Steeplechase, containing 473 apartment homes, classified as held for sale as of September 30, 2012. These properties were sold in October 2012 for approximately $26.6 million.

For the three and nine months ended September 30, 2011, income from discontinued operations also included the results of operations of two operating properties, Camden Valley Creek and Camden Valley Ridge, containing 788 apartment homes, sold in December 2011.

The following is a summary of income from discontinued operations for the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
Property revenues	$	1,104	$	4,710	$	4,390	$	13,788
Property expenses	540		2,421		2,284		7,028
	564		2,289		2,106		6,760
Depreciation and amortization	221		1,191		844		3,564
Income from discontinued operations	$	343	$	1,098	$	1,262	$	3,196

7. Investments in Joint Ventures

As of September 30, 2012, our equity investments in unconsolidated joint ventures consisted of five joint ventures, with our ownership percentages ranging from 15% to 50%. We utilize the equity method of accounting to account for transactions related to these investments. We currently provide property management services to each of these joint ventures which owns operating properties, and we may provide construction and development services to the joint ventures which own properties under development. The following table summarizes aggregate balance sheet and statement of income data for the unconsolidated joint ventures as of and for the periods presented:

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(in millions)	September 30, 2012		(1)	December 31, 2011
Total assets	$	1,068.1		$	1,394.9
Total third-party debt	844.7			1,093.9
Total equity	188.7			261.6

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2012		2011			2012		2011
Total revenues (2)	$	37.5	$	40.4		$	111.6	$	99.1
Net income (loss)	15.3		(7.4		)	13.5		(13.8		)
Equity in income (loss) (3)	3.7		(0.6		)	4.7		(0.2		)

(1) In January 2012, as a result of our purchase of the remaining 80% ownership interest in previously unconsolidated joint ventures, we consolidated twelve joint ventures previously accounted for in accordance with the equity method. Refer to Note 6, "Property Acquisitions, Discontinued Operations, and Assets Held for Sale," for further discussion of the acquisition.

(2) Excludes approximately $2.2 millionand $7.5 million of revenues for the three and nine months ended September 30, 2012, and$5.7 million and $16.4 million for the three and nine months ended September 30, 2011, respectively, related to discontinued operations within one of our unconsolidated joint ventures resulting from the sale of four operating properties in the fourth quarter of 2011 and one operating property in the fourth quarter of 2012. Discontinued operations also relates to the sale of one operating property in another unconsolidated joint venture during the third quarter of 2012.

(3) Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

The joint ventures in which we have a partial interest have been funded in part with secured third-party debt. As of September 30, 2012, we had no outstanding guarantees related to loans of our unconsolidated joint ventures.

We may earn fees for property management, construction, development, and other services related to joint ventures in which we own an interest. Fees earned for these services amounted to approximately $2.8 million and $2.4 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $8.8 million and $6.4 million for the nine months ended September 30, 2012 and 2011, respectively. We eliminate fee income for services provided to these joint ventures to the extent of our ownership.

In January 2012, one of our discretionary investment funds acquired a multifamily property, Camden Asbury, consisting of 350 units located in Raleigh, North Carolina. In March 2012, this fund acquired approximately 15.0 acres of land located in Orange County, Florida. In September 2012, this fund acquired approximately 3.7 acres of land located in Charlotte, North Carolina. The fund intends to utilize these land holdings for development of multifamily apartment communities.

In August 2012, one of our funds sold one operating property, Camden South Congress, consisting of 253 units located in Austin, Texas for approximately $54.4 million. Our proportionate share of the gain was approximately $2.9 million, which was reported as a component of equity in income (loss) of joint ventures in the condensed consolidated statements of income and comprehensive income. In October 2012, one of our unconsolidated joint ventures sold one operating property, Camden Passage, consisting of 596 units located in Kansas City, Missouri for approximately $40.7 million.

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8. Notes Payable

The following is a summary of our indebtedness:

	Balance at
(in millions)	September 30, 2012		December 31, 2011
Commercial Banks
Unsecured line of credit and short-term borrowings	$	34.0	$	—
	34.0		—
Senior unsecured notes
5.93% Notes, due 2012	189.6		189.6
5.45% Notes, due 2013	199.8		199.7
5.08% Notes, due 2015	249.5		249.3
5.75% Notes, due 2017	246.3		246.2
4.70% Notes, due 2021	248.7		248.6
5.00% Notes, due 2023	247.4		247.3
	1,381.3		1,380.7
Total unsecured notes payable	1,415.3		1,380.7
Secured notes
0.96% – 6.00% Conventional Mortgage Notes, due 2013 – 2045	940.3		1,012.3
1.35% Tax-exempt Mortgage Note due 2028	38.1		39.1
	978.4		1,051.4
Total notes payable	$	2,393.7	$	2,432.1
Floating rate tax-exempt debt included in secured notes (1.35%)	$	38.1	$	39.1
Floating rate debt included in secured notes (0.96% - 1.69%)	206.4		206.4

We have a $500 million unsecured credit facility which matures in September 2015 with an option to extend at our election to September 2016.  Additionally, we have the option to increase this credit facility to $750 million by either adding additional banks to the credit facility or obtaining the agreement of the existing banks in the credit facility to increase their commitments. The interest rate is based upon LIBOR plus a margin which is subject to change as our credit ratings change. Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates. These bid rate loans have terms of 180 days or less and may not exceed the lesser of $250 million or the remaining amount available under the line of credit. The line of credit is subject to customary financial covenants and limitations. We are in compliance with all such financial covenants and limitations.

Our line of credit provides us with the ability to issue up to $100 million in letters of credit. While our issuance of letters of credit does not increase our borrowings outstanding under our line of credit, it does reduce the amount available. At September 30, 2012, we had outstanding letters of credit totaling approximately $10.9 million, leaving approximately $455.1 million available under our unsecured line of credit.

In June 2012, we repaid a 4.92% secured third-party note payable which was due to mature on July 1, 2012 for approximately $33.7 million. In August 2012, we repaid a 5.07% secured third-party note payable which matured on August 1, 2012 for approximately $19.3 million. In August 2012, we repaid a 4.92% secured third-party note payable which was due to mature on September 1, 2012 for approximately $16.7 million.

On October 1, 2012, we repaid a $31.5 million secured third-party note payable which was scheduled to mature in August 2013. This secured debt related to a fully-consolidated joint venture in which we acquired the remaining noncontrolling ownership interest in September 2012. See Note 6, "Property acquisitions, discontinued operations, and assets held for sale" for further discussion.

At September 30, 2012 and 2011, the weighted average interest rate on our floating rate debt, which include amounts outstanding on our unsecured line of credit, was approximately 1.1%.

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Our indebtedness, including amounts drawn on our unsecured line of credit, had a weighted average maturity of 6.2 years at September 30, 2012. Scheduled repayments on outstanding debt, including our line of credit and scheduled principal amortizations, and the weighted average interest rate on maturing debt at September 30, 2012 were as follows:

(in millions)	Amount		Weighted Average Interest Rate
2012	$	190.3	5.9	%
2013 (1)	259.5		4.9
2014	11.0		6.0
2015	286.4		4.6
2016 (2)	2.6		—
2017 and thereafter	1,643.9		4.6
Total	$	2,393.7	4.8	%

(1) Includes $31.5 million of secured debt which was repaid subsequent to September 30, 2012 in conjunction with the acquisition of the remaining 75% interest in a fully-consolidated joint venture.

(2) Includes only scheduled principal amortizations.

9. Derivative Financial Instruments and Hedging Activities

Risk Management Objective of Using Derivatives. We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of our debt funding and the use of derivative financial instruments. Specifically, we may enter into derivative financial instruments to manage exposures arising from business activities resulting in differences in the amount, timing, and duration of our known or expected cash payments principally related to our borrowings.

Cash Flow Hedges of Interest Rate Risk. Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish these objectives, we primarily use interest rate swaps and caps as part of our interest rate risk management strategy. Interest rate swaps involve the receipt of variable rate amounts from a counterparty in exchange for us making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Interest rate caps involve the receipt of variable rate amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an upfront premium.

Designated Hedges. The effective portion of changes in the fair value of derivatives designated and qualifying as cash flow hedges is recorded in accumulated other comprehensive income or loss and is subsequently reclassified into earnings in the period the hedged forecasted transaction affects earnings. During the nine months ended September 30, 2011, such derivatives were used to hedge the variable cash flows associated with existing variable rate debt. The ineffective portion of the change in fair value of the derivatives, if any, is recognized directly in earnings. No portion of designated hedges was ineffective during the three and nine months ended September 30, 2011. We did not have any designated hedges during the nine months ended September 30, 2012.

Non-designated Hedges. Derivatives are not entered into for speculative purposes and are used to manage our exposure to interest rate movements and other identified risks. Our non-designated hedges are either specifically non-designated by management or do not meet strict hedge accounting requirements. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings in interest and other income.

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As of September 30, 2012, we had the following outstanding interest rate derivatives which were not designated as hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional Amount
Interest Rate Cap	1	$	175.0	million
Interest Rate Swap (1)	1	$	500.0	million

(1) In October 2012, the interest rate swap matured and was settled.

The table below presents the fair value of our derivative financial instruments as well as their classification in the condensed consolidated balance sheets at September 30, 2012 and December 31, 2011 (in millions):

Fair Values of Derivative Instruments

Asset Derivatives

Liability Derivatives

September 30, 2012

December 31, 2011

September 30, 2012

December 31, 2011

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives not designated as hedging instruments

Interest Rate Swap

Other Liabilities

$

0.2

Other Liabilities

$

16.6

Interest Rate Cap

Other Assets

$

—

Other Assets

$

0.1

The tables below present the effect of our derivative financial instruments in the condensed consolidated statements of income and comprehensive income for the three and nine months ended September 30, 2012 and 2011 (in millions):

Effect of Derivative Instruments

Three Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)				Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Discontinuation, Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Discontinuation, Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011			2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	—	Interest expense	$	—	$	0.1	Loss on discontinuation of hedging relationship	$	—	$	—

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012		2011
Interest Rate Cap	Other income/(loss)	$	—	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	—	$	(0.1	)

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Nine Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)					Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011				2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	(2.7	)	Interest expense	$	—	$	9.9	Loss on discontinuation of hedging relationship	$	—	$	29.8

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012			2011
Interest Rate Cap	Other income/(loss)	$	(0.1	)	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	(0.7	)	$	(0.1	)

(1) The results include the interest rate swap gain (loss) prior to discontinuation in May 2011.

Credit-risk-related Contingent Features. Derivative financial investments expose us to credit risk in the event of non-performance by the counterparties under the terms of the interest rate hedge agreements. We believe we minimize our credit risk on these transactions by transacting with major creditworthy financial institutions. As part of our on-going control procedures, we monitor the credit ratings of counterparties and our exposure to any single entity, which we believe minimizes credit risk concentration.

Our agreements with each of our derivative counterparties contain provisions which provide the counterparty the right to declare a default on our derivative obligations if we are in default on any of our indebtedness, subject to certain thresholds. For all instances, these provisions include a default even if there is no acceleration of the indebtedness. Our agreements with each of our derivative counterparties also provide if we consolidate with, merge with or into, or transfer all or substantially all our assets to another entity and the creditworthiness of the resulting, surviving, or transferee entity is materially weaker than ours, the counterparty has the right to terminate the derivative obligations.

At September 30, 2012, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk (the “termination value”), related to these agreements was approximately $1.9 million. The credit-risk related contingent features underlying these agreements had not been triggered as of September 30, 2012. In October 2012, our interest rate swap matured and was settled.

10. Share-based Compensation

Incentive Compensation. During the second quarter of 2011, our Board of Trust Managers adopted, and on May 11, 2011 our shareholders approved, the 2011 Share Incentive Plan of Camden Property Trust (the “2011 Share Plan”). Under the 2011 Share Plan, we may issue up to a total of approximately 9.1 million fungible units (the “Fungible Pool Limit”), which is comprised of approximately 5.8 million new fungible units plus approximately 3.3 million fungible units previously available for issuance under our 2002 share incentive plan based on a 3.45 to 1.0 fungible unit-to full value award conversion ratio. Fungible units represent the baseline for the number of shares available for issuance under the 2011 Share Plan. Different types of awards are counted differently against the Fungible Pool Limit, as follows:

• Each share issued or to be issued in connection with an award, other than an option, right or other award which does not deliver the full value at grant of the underlying shares, will be counted against the Fungible Pool Limit as 3.45 fungible pool units;

• Options and other awards which do not deliver the full value at grant of the underlying shares and which expire more than five years from date of grant will be counted against the Fungible Pool Limit as one fungible pool unit; and

• Options, rights and other awards which do not deliver the full value at date of grant and expire five years or less from the date of grant will be counted against the Fungible Pool Limit as 0.83 of a fungible pool unit.

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At September 30, 2012 approximately 7.9 million fungible units were available under the 2011 Share Plan, which results in approximately 2.3 million common shares which may be granted pursuant to full value awards based on the 3.45 to 1.0 fungible unit-to-full value award conversion ratio.

Awards which may be granted under the 2011 Share Plan include incentive share options, non-qualified share options (which may be granted separately or in connection with an option), share awards, dividends and dividend equivalents and other equity based awards. Persons eligible to receive awards under the 2011 Share Plan are trust managers, directors of our affiliates, executive and other officers, key employees and consultants, as determined by the Compensation Committee of our Board of Trust Managers. The 2011 Share Plan will expire on May 11, 2021. In July 2012, the 2011 Share Plan was amended to provide that annual share grants to our trust managers will vest as determined by the Compensation Committee of our Board of Trust Managers at the date of grant, subject to the provisions of the 2011 Share Plan.

Options. Approximately 0.5 million options were exercised during each of the nine months ended September 30, 2012 and 2011. The options were exercised at prices ranging from $30.06 to $51.37 per option during the nine months ended September 30, 2012, and at prices ranging from $30.06 to $62.32 per option during the nine months ended September 30, 2011. The total intrinsic value of options exercised was approximately $12.0 million and $9.5 million, during the nine months ended September 30, 2012 and 2011, respectively. As of September 30, 2012, there was approximately $0.6 million of total unrecognized compensation cost related to unvested options, which is expected to be amortized over the next two years. At September 30, 2012, outstanding options and exercisable options had a weighted average remaining life of approximately 4.2 years and 3.2 years, respectively.

The following table summarizes outstanding share options and exercisable options at September 30, 2012:

	Outstanding Options (1)			Exercisable Options (1)
Range of Exercise Prices	Number	Weighted Average Price		Number	Weighted Average Price
$30.06-$31.48	210,750	$	30.06	14,943	$	30.12
$41.16-$43.94	258,632	42.72		240,000	42.63
$45.53-$73.32	379,330	49.05		306,221	49.30
Total options	848,712	$	42.41	561,164	$	45.93

(1) The aggregate intrinsic value of outstanding and exercisable options at September 30, 2012 were $18.9 million and $10.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $64.49 per share on September 30, 2012 and the strike price of the underlying award.

Valuation Assumptions. Options generally have a vesting period of three to five years. We estimate the fair values of each option award on the date of grant using the Black-Scholes option pricing model. No options have been granted in 2012.

Share Awards and Vesting. Share awards generally have a vesting period of five years. The compensation cost for share awards is based on the market value of the shares on the date of grant and is amortized over the vesting period. To estimate forfeitures, we use actual forfeiture history. At September 30, 2012, the unamortized value of previously issued unvested share awards was approximately $36.9 million, which is expected to be amortized over the next five years. The total fair value of shares vested during the nine months ended September 30, 2012 and 2011 was approximately $13.4 million and $11.0 million, respectively.

Total compensation cost for option and share awards charged against income was approximately $3.6 million and $3.3 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $10.4 million and $9.5 million for the nine months ended September 30, 2012 and 2011, respectively. Total capitalized compensation cost for option and share awards was approximately $0.4 million and $0.3 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $1.1 million and $0.9 million for the nine months ended September 30, 2012 and 2011, respectively.

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The following table summarizes activity under our share incentive plans for the nine months ended September 30, 2012:

	Options Outstanding		Weighted Average Exercise Price		Nonvested Share Awards Outstanding		Weighted Average Grant  Price
Total options and nonvested share awards outstanding at December 31, 2011	1,339,536		$	42.27	818,754		$	46.88
Granted	—		—		345,180		63.50
Exercised/vested	(458,881	)	40.74		(274,119	)	48.71
Forfeited	(31,943	)	60.56		(13,338	)	51.52
Net activity	(490,824	)			57,723
Total options and nonvested share awards outstanding at September 30, 2012	848,712		$	42.41	876,477		$	52.77

11. Net Change in Operating Accounts

The effect of changes in the operating accounts and other on cash flows from operating activities is as follows:

	Nine Months Ended
	September 30,
(in thousands)	2012			2011
Change in assets:
Other assets, net	$	(8,765	)	$	3,046
Change in liabilities:
Accounts payable and accrued expenses	11,759			11,343
Accrued real estate taxes	20,230			15,048
Other liabilities	(16,322		)	(13,131		)
Other	599			401
Change in operating accounts and other	$	7,501		$	16,707

12. Commitments and Contingencies

Construction Contracts. As of September 30, 2012, we had approximately $178.0 million of additional expected costs to complete our construction projects currently under development. We expect to fund these amounts through a combination of cash flows generated from operations, draws on our unsecured credit facility, proceeds from property dispositions and secured mortgages, equity issued from our ATM programs, and the use of debt and equity offerings under our automatic shelf registration statement.

Litigation. One of our wholly-owned subsidiaries previously acted as a general contractor for the construction of two apartment projects in Florida which were subsequently sold and converted to condominium units by unrelated third-parties. One condominium association of a project has asserted claims against our subsidiary alleging, in general, defective construction as a result of alleged negligence and a failure to comply with building codes; the other condominium association has asserted claims against our subsidiary alleging a failure to comply with building codes.

The two associations have filed suit against our subsidiary and other unrelated third parties in Florida claiming damages, in unspecified amounts, for the costs of repair arising out of the alleged defective construction as well as the recovery of incidental and consequential damages resulting from such alleged negligence. These lawsuits are in an early stage of litigation and discovery is continuing. While we have denied liability to the associations, it is not possible to determine the potential outcome nor is it possible to estimate a range of the amount of loss, if any, that would be associated with any potential adverse decision as these matters are in an early stage of litigation.

We are also subject to various legal proceedings and claims which arise in the ordinary course of business. Matters which arise out of allegations of bodily injury, property damage, and employment practices are generally covered by insurance. While the resolution of these legal proceedings and claims cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on our condensed consolidated financial statements.

Other Contingencies. In the ordinary course of our business, we issue letters of intent indicating a willingness to negotiate for acquisitions, dispositions, or joint ventures and also enter into arrangements contemplating various transactions. Such letters

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of intent and other arrangements are non-binding as to either party unless and until a definitive contract is entered into by the parties. Even if definitive contracts relating to the purchase or sale of real property are entered into, these contracts generally provide the purchaser with time to evaluate the property and conduct due diligence, during which periods the purchaser will have the ability to terminate the contracts without penalty or forfeiture of any deposit or earnest money. There can be no assurance definitive contracts will be entered into with respect to any matter covered by letters of intent or we will consummate any transaction contemplated by any definitive contract. Furthermore, due diligence periods for real property are frequently extended as needed. An acquisition or sale of real property becomes probable at the time the due diligence period expires and the definitive contract has not been terminated. We are then at risk under a real property acquisition contract, but generally only to the extent of any earnest money deposits associated with the contract, and are obligated to sell under a real property sales contract.

Lease Commitments. At September 30, 2012, we had long-term leases covering certain land, office facilities, and equipment. Rental expense totaled approximately $0.7 million for both of the three months ended September 30, 2012 and 2011, and approximately $1.9 million and $2.1 million for the nine months ended September 30, 2012 and 2011, respectively. Minimum annual rental commitments for the remainder of 2012 are $0.6 million, and for the years ending December 31, 2013 through 2016 are approximately $2.5 million, $2.4 million, $1.5 million, and $0.4 million, respectively, and approximately $0.9 million in the aggregate thereafter.

Investments in Joint Ventures. We have entered into, and may continue in the future to enter into, joint ventures or partnerships (including limited liability companies) through which we own an indirect economic interest in less than 100% of the community or land owned directly by the joint venture or partnership. Our decision whether to hold the entire interest in an apartment community or land ourselves, or to have an indirect interest in the community or land through a joint venture or partnership, is based on a variety of factors and considerations, including: (i) our projection, in some circumstances, that we will achieve higher returns on our invested capital or reduce our risk if a joint venture or partnership vehicle is used; (ii) our desire to diversify our portfolio of communities by market; (iii) our desire at times to preserve our capital resources to maintain liquidity or balance sheet strength; and (iv) the economic and tax terms required by a seller of land or of a community, who may prefer or who may require less payment if the land or community is contributed to a joint venture or partnership. Investments in joint ventures or partnerships are not limited to a specified percentage of our assets. Each joint venture or partnership agreement is individually negotiated, and our ability to operate and/or dispose of a community in our sole discretion is limited to varying degrees in our existing joint venture agreements and may be limited to varying degrees depending on the terms of future joint venture agreements.

We have two discretionary investment funds to make direct and indirect investments in multifamily real estate throughout the United States, primarily through acquisitions of operating properties and certain land parcels which will be acquired by or contributed to the funds for development. As of December 31, 2011, one of our funds was closed for future investments as the end of the investment period was reached. During the first quarter of 2012, the investment period of our remaining fund was extended from April 8, 2012 to earlier of (i) December 31, 2012, or (ii) such time as 85% of the fund's committed capital is invested. We can use the extended investment period exclusively for acquisitions of designated development properties.

13. Income Taxes

We have maintained and intend to maintain our election as a REIT under the Internal Revenue Code of 1986, as amended. In order for us to continue to qualify as a REIT we must meet a number of organizational and operational requirements, including a requirement to distribute annual dividends to our shareholders equal to a minimum of 90% of our REIT taxable income, computed without regard to the dividends paid deduction and our net capital gains. As a REIT, we generally will not be subject to federal income tax on our taxable income at the corporate level to the extent such income is distributed to our shareholders annually. If our taxable income exceeds our dividends in a tax year, REIT tax rules allow us to designate dividends from the subsequent tax year in order to avoid current taxation on undistributed income. If we fail to qualify as a REIT in any taxable year, we will be subject to federal and state income taxes at regular corporate rates, including any applicable alternative minimum tax. In addition, we may not be able to requalify as a REIT for the four subsequent taxable years. Historically, we have incurred only state and local income, franchise, and excise taxes. Taxable income from non-REIT activities managed through taxable REIT subsidiaries is subject to applicable federal, state, and local income and margins taxes. Our operating partnerships are flow-through entities and are not subject to federal income taxes at the entity level.

We have provided for income, franchise, and margin taxes in the condensed consolidated statements of income and comprehensive income for the three and nine months ended September 30, 2012 and 2011. Income taxes for the nine months ended September 30, 2011 also included approximately $1.0 million associated with the gain recognized on the sale of our available-for-sale investment.

Other income tax expense is related to entity level taxes on certain ventures, state taxes, and federal taxes on certain of our taxable REIT subsidiaries. We have no significant temporary differences or tax credits associated with our taxable REIT subsidiaries.

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We believe we have no uncertain tax positions or unrecognized tax benefits requiring disclosure as of and for the nine months ended September 30, 2012.

14. Fair Value Disclosures

Recurring Fair Value Disclosures. The following table presents information about our financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2012 and December 31, 2011 under the fair value hierarchy discussed in Footnote 2, "Summary of Significant Accounting Policies and Recent Accounting Pronouncements."

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	September 30, 2012								December 31, 2011
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Deferred compensation plan investments (1)	$	38.9	$	—	$	—	$	38.9	$	41.0	$	—	$	—	$	41.0
Derivative financial instruments	—		—		—		—		—		0.1		—		0.1
Liabilities
Derivative financial instruments	$	—	$	0.2	$	—	$	0.2	$	—	$	16.6	$	—	$	16.6

(1) The balance at September 30, 2012 also reflects approximately $7.0 million of participant cash withdrawals from our deferred compensation plan investment during the nine months ended September 30, 2012.

Financial Instrument Fair Value Disclosures. As of September 30, 2012 and December 31, 2011, the carrying values of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and distributions payable represent fair value because of the short-term nature of these instruments. The carrying value of restricted cash approximates its fair value based on the nature of our assessment of the ability to recover these amounts. Due to the short-term nature of these instruments, Level 1 and Level 2 inputs are utilized to estimate the fair value of these financial instruments.

The following table presents the carrying and estimated fair value of our notes payable at September 30, 2012 and December 31, 2011:

	September 30, 2012				December 31, 2011
(in millions)	Carrying Value		Estimated Fair  Value		Carrying Value		Estimated Fair  Value
Fixed rate notes payable	$	2,115.2	$	2,351.5	$	2,186.6	$	2,304.4
Floating rate notes payable (1)	278.5		269.8		245.5		233.6

(1) Includes balances outstanding under our unsecured line of credit.

Non-recurring Fair Value Disclosures. There were no events during the nine months ended September 30, 2012 or 2011 which required fair value adjustments of our non-financial assets and non-financial liabilities.

15. Noncontrolling Interests

The following table summarizes the effect of changes in our ownership interest in subsidiaries on the equity attributable to common shareholders for the nine months ended September 30:

(in thousands)	2012			2011
Net income attributable to common shareholders	$	141,224		$	2,529
Transfers from the noncontrolling interests:
Increase (decrease) in equity for conversion of operating partnership units	(448		)	592
Decrease in additional-paid-in-capital for purchase of remaining noncontrolling ownership interest in a consolidated joint venture	(13,285		)	—
Change in common equity and net transfers from noncontrolling interests	$	127,491		$	3,121

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with the condensed consolidated financial statements and notes appearing elsewhere in this report, as well as Part I, Item 1A, “Risk Factors” within our Annual Report on Form 10-K for the year ended December 31, 2011. Historical results and trends which might appear in the condensed consolidated financial statements should not be interpreted as being indicative of future operations.

We consider portions of this report to be “forward-looking” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, both as amended, with respect to our expectations for future periods. Forward-looking statements do not discuss historical fact, but instead include statements related to expectations, projections, intentions, or other items relating to the future; forward-looking statements are not guarantees of future performances, results, or events. Although we believe the expectations reflected in our forward-looking statements are based upon reasonable assumptions, we can give no assurance our expectations will be achieved. Any statements contained herein which are not statements of historical fact should be deemed forward-looking statements. Reliance should not be placed on these forward-looking statements as they are subject to known and unknown risks, uncertainties, and other factors beyond our control and could differ materially from our actual results and performance.

Factors which may cause our actual results or performance to differ materially from those contemplated by forward-looking statements include, but are not limited to, the following:

• volatility in capital and credit markets, or other unfavorable changes in economic conditions could adversely impact us;

• short-term leases expose us to the effects of declining market rents;

• we face risks associated with land holdings and related activities;

• difficulties of selling real estate could limit our flexibility;

• we could be negatively impacted by the condition of Fannie Mae or Freddie Mac;

• compliance or failure to comply with laws, including those requiring access to our properties by disabled persons, could result in substantial cost;

• competition could limit our ability to lease apartments or increase or maintain rental income;

• development and construction risks could impact our profitability;

• our acquisition strategy may not produce the cash flows expected;

• competition could adversely affect our ability to acquire properties;

• losses from catastrophes may exceed our insurance coverage;

• investments through joint ventures involve risks not present in investments in which we are the sole investor;

• we face risks associated with investments in and management of discretionary funds;

• tax matters, including failure to qualify as a REIT, could have adverse consequences;

• we depend on our key personnel;

• changes in litigation risks could affect our business;

• insufficient cash flows could limit our ability to make required payments for debt obligations or pay distributions to shareholders;

• we have significant debt, which could have important adverse consequences;

• we may be unable to renew, repay, or refinance our outstanding debt;

• variable rate debt is subject to interest rate risk;

• we may incur losses on interest rate hedging arrangements;

• issuances of additional debt may adversely impact our financial condition;

• failure to maintain our current credit ratings could adversely affect our cost of funds, related margins, liquidity, and access to capital markets;

• share ownership limits and our ability to issue additional equity securities may prevent takeovers beneficial to shareholders;

• our share price will fluctuate; and

• the form, timing and/or amount of dividend distributions in future periods may vary and be impacted by economic or other considerations.

These forward-looking statements represent our estimates and assumptions as of the date of this report, and we assume no obligation to update or supplement forward-looking statements because of subsequent events.

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Executive Summary

We are primarily engaged in the ownership, management, development, acquisition, and construction of multifamily apartment communities. As of September 30, 2012, we owned interests in, operated, or were developing 209 multifamily properties comprising 70,871 apartment homes across the United States as detailed in the following Property Portfolio table. In addition, we own other land parcels we may develop into multifamily apartment communities.

Property Operations

Our results for the nine months ended September 30, 2012 reflect an increase in rental revenue as compared to the same period in 2011, which we believe was primarily due to a gradually improving economy, favorable demographics, a modest supply of new multifamily housing, and a decrease in home ownership rates, which have resulted in increases in realized rental rates and average occupancy levels. Same store revenues increased 6.5% for the first nine months of 2012, as compared to the same period in 2011. We believe U.S. economic and employment growth will continue during 2012 and the supply of new multifamily homes will continue to be below historical levels. However, we believe significant risks to the economy remain prevalent, and while there have been increases in employment levels in the majority of our markets, the unemployment rate remains at higher than historical levels. If economic conditions in the United States were to worsen, our operating results could be adversely affected.

Development Activity

During the nine months ended September 30, 2012, we completed construction of six development projects containing 1,495 units, including one community containing 244 units in one of our discretionary funds in which we have a 20% ownership interest. As of September 30, 2012, three of these projects had achieved stabilization. At September 30, 2012, we had a total of six development projects under construction containing 2,040 units, including one development project containing 276 units in one of our discretionary funds, with initial occupancy occurring between 2012 and 2014. Excluding the development project in one of our discretionary funds, we have remaining expected costs to complete of approximately $178.0 million on the five consolidated projects as of September 30, 2012.

Acquisitions

During the nine months ended September 30, 2012, we acquired sixteen operating properties in five transactions totaling approximately $583.1 million, including assumed debt of approximately $272.6 million. Twelve of these operating properties were former unconsolidated joint ventures in which we acquired the remaining 80% ownership interests. On September 30, 2012, we also acquired the remaining 75% noncontrolling ownership interest in a fully-consolidated joint venture for approximately $10.2 million. During the nine months ended September 30, 2012, we acquired approximately 16.7 acres of land in two transactions for approximately $16.7 million. We intend to utilize these land holdings for development of multifamily apartment communities. We funded these acquisitions through cash generated from operations, proceeds from our at-the-market share offering programs (“ATM programs”), proceeds from an equity offering completed in January 2012, and proceeds from property dispositions.

During the nine months ended September 30, 2012, one of our funds acquired one operating property and two land holdings totaling 18.7 acres which it intends to utilize for development of multifamily apartment communities.

In November 2012, we acquired approximately 2.4 acres of land located in Plantation, Florida for approximately $9.0 million.

Dispositions

During the first quarter of 2012, we sold three operating properties consisting of 1,033 units for approximately $55.6 million and recognized a gain of approximately $32.5 million on these sales. In August 2012, one of our funds sold one operating property consisting of 253 units located in Austin, Texas for approximately $54.4 million. Our proportionate share of the gain was approximately $2.9 million.

During October 2012, we sold two operating properties consisting of 473 units for approximately $26.6 million. In October 2012, one of our unconsolidated joint ventures also sold an operating property consisting of 596 units located in Kansas City, Missouri for approximately $40.7 million.

Future Outlook

Subject to market conditions, we intend to continue to look for opportunities to expand our development pipeline, and acquire existing communities. We continually evaluate our operating property and land development portfolio and plan to continue our practice of selective dispositions as market conditions warrant and opportunities develop. We also intend to continue to strengthen our capital and liquidity positions by continuing to focus on our core fundamentals which we believe are generating positive cash

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flows from operations, maintaining appropriate debt levels and leverage ratios, and controlling overhead costs. We intend to meet our liquidity requirements through cash flows generated from operations, draws on our unsecured credit facility, proceeds from property dispositions and secured mortgages, equity issued from our ATM programs, and the use of debt and equity offerings under our automatic shelf registration statement.

As of September 30, 2012, we had approximately $5.6 million in cash and cash equivalents and approximately $455.1 million available under our $500 million unsecured line of credit. As of the date of this filing, we had common shares having an aggregate offering price of up to $123.6 million remaining available for sale under the 2012 ATM program. We believe our remaining payments on debt maturing in 2012 are manageable at approximately $190.3 million, which represents approximately 8% of our total outstanding debt and includes scheduled principal amortizations of approximately $0.6 million. On October 1, 2012, we repaid a $31.5 million secured third-party note payable which was scheduled to mature in August 2013. This secured debt related to a fully-consolidated joint venture in which we acquired the remaining noncontrolling ownership interest in September 2012. We believe we are well-positioned with a strong balance sheet and sufficient liquidity to cover near-term debt maturities and new development funding requirements. We will, however, continue to assess and take further actions we believe are prudent to meet our objectives and capital requirements.

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Property Portfolio

Our multifamily property portfolio is summarized as follows:

	September 30, 2012		December 31, 2011
	Apartment Homes	Properties	Apartment  Homes	Properties
Operating Properties
Houston, Texas (1)	9,002	26	9,354	26
Las Vegas, Nevada	8,016	29	8,016	29
Dallas, Texas	6,562	17	5,979	15
Tampa, Florida	6,493	15	5,953	13
Washington, D.C. Metro	5,791	17	5,604	16
Atlanta, Georgia	3,769	13	3,546	12
Orlando, Florida	3,764	9	3,564	9
Charlotte, North Carolina	3,574	15	3,574	15
Austin, Texas (2)	3,213	10	3,222	10
Raleigh, North Carolina	3,054	8	2,704	7
Southeast Florida	2,520	7	2,520	7
Los Angeles/Orange County, California	2,481	6	2,481	6
Denver, Colorado	2,171	7	2,171	7
Phoenix, Arizona	2,076	7	2,433	8
San Diego/Inland Empire, California	1,665	5	1,196	4
Other	4,680	12	4,680	12
Total Operating Properties	68,831	203	66,997	196
Properties Under Development
Washington, D.C. Metro	596	2	783	3
Orlando, Florida	438	1	858	2
Denver, Colorado	424	1	—	—
Austin, Texas	314	1	244	1
Houston, Texas	268	1	372	2
Tampa, Florida	—	—	540	2
Total Properties Under Development	2,040	6	2,797	10
Total Properties	70,871	209	69,794	206
Less: Unconsolidated Joint Venture Properties (3)
Houston, Texas	3,152	10	4,368	13
Las Vegas, Nevada	3,098	14	4,047	17
Austin, Texas	1,360	4	1,613	5
Dallas, Texas	1,250	3	1,706	4
Tampa, Florida	450	1	450	1
Raleigh, North Carolina	350	1	—	—
Atlanta, Georgia	344	2	344	2
Denver, Colorado	320	1	320	1
Washington, D.C. Metro	276	1	276	1
Phoenix, Arizona	—	—	992	4
Los Angeles/Orange County, California	—	—	421	1
Other	2,841	8	2,841	8
Total Unconsolidated Joint Venture Properties	13,441	45	17,378	57
Total Properties Fully Consolidated	57,430	164	52,416	149

(1) Includes one property consisting of 290 apartment homes located in Houston which was included in properties held for sale at September 30, 2012. This property was sold in October 2012.

(2) Includes one property consisting of 183 apartment homes located in Austin which was included in properties held for sale at September 30, 2012. This property was sold in October 2012.

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(3) Refer to Note 7, “Investments in Joint Ventures” in the notes to condensed consolidated financial statements for further discussion of our joint venture investments.

Acquisitions

During the nine months ended September 30, 2012, we completed acquisitions of seventeen operating properties and one of our unconsolidated joint ventures completed an acquisition of one operating property as follows:

Acquisitions of Operating Properties	Location	Number of Apartment Homes	Date of Acquisition (1)
Consolidated acquisitions:
Camden Addison	Dallas, TX	456	1/25/2012
Camden Holly Springs	Houston, TX	548	1/25/2012
Camden Park	Houston, TX	288	1/25/2012
Camden Sugar Grove	Houston, TX	380	1/25/2012
Camden Parkside	Fullerton, CA	421	1/25/2012
Camden Fountain Palms	Phoenix, AZ	192	1/25/2012
Camden Pecos Ranch	Phoenix, AZ	272	1/25/2012
Camden Sierra	Phoenix, AZ	288	1/25/2012
Camden Towne Center	Phoenix, AZ	240	1/25/2012
Camden Pines	Las Vegas, NV	315	1/25/2012
Camden Summit	Las Vegas, NV	234	1/25/2012
Camden Tiara	Las Vegas, NV	400	1/25/2012
Camden Belmont	Dallas, TX	477	6/28/2012
Camden Creekstone	Atlanta, GA	223	7/12/2012
Camden Landmark	Ontario, CA	469	9/27/2012
Camden Henderson	Dallas, TX	106	9/28/2012
Camden Travis Street (2)	Houston, TX	253	9/30/2012
Consolidated total		5,562
Camden Asbury Village (3)	Raleigh, NC	350	1/27/2012

(1) The properties acquired on January 25, 2012 were former unconsolidated joint ventures in which we acquired the remaining 80% ownership interests. The 4,034 apartment homes were previously included in our unconsolidated joint venture property count.

(2) Acquired the remaining 75% noncontrolling ownership interest in a fully consolidated joint venture. The 253 apartment homes were previously included in our consolidated property count.

(3) Property owned through an unconsolidated joint venture in which we own a 20% interest.

During the nine months ended September 30, 2012, we acquired two land tracts and one of our unconsolidated joint ventures also acquired two land tracts as follows:

Location of Land Tract Acquisitions	Acreage	Date of Acquisition
Dallas, TX	4.7	5/8/2012
Austin, TX	12.0	8/23/2012
Consolidated total	16.7
Orlando, FL (1)	15.0	3/22/2012
Charlotte, NC (1)	3.7	9/28/2012
Unconsolidated total	18.7

(1) Land tract owned through an unconsolidated joint venture in which we own a 20% interest.

In November 2012, we acquired approximately 2.4 acres of land located in Plantation, Florida for approximately $9.0 million.

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Dispositions

During the nine months ended September 30, 2012, we sold three operating properties and one of our unconsolidated joint ventures sold one operating property as follows:

Dispositions of Operating Properties	Location	Number of Apartment Homes	Date of Disposition
Camden Vista Valley	Phoenix, AZ	357	1/12/2012
Camden Landings	Orlando, FL	220	3/7/2012
Camden Creek	Houston, TX	456	3/16/2012
Consolidated total		1,033
Camden South Congress (1)	Austin, TX	253	8/30/2012

(1)Property formerly owned through an unconsolidated joint venture in which we own a 20% interest.

During October 2012, we sold Camden Laurel Ridge comprised of 183 apartment homes located in Austin, Texas and Camden Steeplechase comprised of 290 apartment homes located in Houston, Texas. During October 2012, one of our unconsolidated joint ventures also sold an operating property, Camden Passage, comprised of 596 units located in Kansas City, Missouri.

Stabilized Communities

We generally consider a property stabilized once it reaches 90% occupancy at the beginning of a period. During the three months ended September 30, 2012, stabilization was achieved at three recently completed development properties as follows:

Stabilized Property and Location	Number of Apartment Homes	Total Cost Incurred		% Occupied at 10/28/12		Date of Construction Completion	Date of Stabilization
Camden LaVina
Orlando, FL	420	$	55.5	96	%	1Q12	3Q12
Camden Summerfield II
Landover, MD	187	25.0		95	%	1Q12	3Q12
Camden Montague
Tampa, FL	192	20.0		96	%	2Q12	3Q12
Total	799	$	100.5

Development and Lease-Up Properties

At September 30, 2012, we had two consolidated completed properties and one completed property owned by one of our unconsolidated joint ventures in lease-up as follows:

($ in millions) Property and Location	Number of Apartment Homes	Cost Incurred		% Leased at 10/28/12		Date of Construction Completion	Estimated Date of Stabilization
Camden Royal Oaks II
Houston, TX	104	$	13.2	61	%	1Q12	3Q13
Camden Westchase Park (1)
Tampa, FL	348	48.0		95	%	3Q12	4Q12
Consolidated total	452	$	61.2
Camden Amber Oaks II (2)
Austin, TX	244	$	21.9	86	%	3Q12	1Q13

(1) Property reached stabilization subsequent to September 30, 2012.

(2) Property owned through an unconsolidated joint venture in which we own a 20% interest.

Our condensed consolidated balance sheet at September 30, 2012 included approximately $280.9 million related to properties under development and land. Of this amount, approximately $108.5 million related to our projects currently under construction. In addition, we had approximately $172.4 million primarily invested in land held for future development, which included

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approximately $131.2 million related to projects we expect to begin constructing during the next two years, and approximately $41.2 million related to land tracts which we may develop in the future.

Communities Under Construction. At September 30, 2012, we had five consolidated properties and one of our unconsolidated joint ventures had one property in various stages of construction as follows:

($ in millions) Property and Location	Number of Apartment Homes	Estimated Cost		Cost Incurred		Included in Properties Under Development		Estimated Date of Construction Completion	Estimated Date of Stabilization
Camden Town Square (1)
Orlando, FL	438	$	66.0	$	58.4	$	7.9	4Q12	3Q13
Camden City Centre II
Houston, TX	268	36.0		22.3		22.3		2Q13	3Q14
Camden NOMA
Washington, DC	320	110.0		60.7		60.7		2Q14	2Q15
Camden Lamar Heights
Austin, TX	314	47.0		7.8		7.8		2Q14	3Q15
Camden Flatirons
Denver, CO	424	78.0		9.8		9.8		4Q14	4Q16
Consolidated total	1,764	$	337.0	$	159.0	$	108.5
Camden South Capitol (2)
Washington, DC	276	$	88.0	$	58.3	$	58.3	4Q13	3Q14

(1) Property in lease-up as of September 30, 2012.

(2) Property owned through an unconsolidated joint venture in which we own a 20% interest.

Development Pipeline Communities. At September 30, 2012, we had the following communities undergoing development activities:

($ in millions) Property and Location	Projected Homes		Total Estimated Cost (1)			Cost to Date
Camden Glendale Triangle
Glendale, CA	303		$	115.0		$	28.2
Camden Boca Raton
Boca Raton, FL	261		54.0			7.2
Camden Paces (Phase 1)
Atlanta, GA	379	(2)	110.0		(2)	48.0		(3)
Camden La Frontera
Austin, TX	300		32.0			3.6
Camden Victory Park
Dallas, TX	425		70.0			14.2
Camden Hollywood
Los Angeles, CA	299		125.0			18.0
Camden Lincoln Station
Denver, CO	275		48.0			5.1
Camden McGowen Station
Houston, TX	251		40.0			6.9
Total	2,493		$	594.0		$	131.2

(1) Represents our best estimate of the total costs we expect to incur on these projects. However, forward-looking statements are not guarantees of future performances, results, or events. Although we believe these expectations are based upon reasonable assumptions, future events rarely develop exactly as forecasted, and the best estimates routinely require adjustment.

(2) This development will be developed in two phases. The estimated cost and projected homes are for phase one only.

(3) Represents cost to date for both phases.

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Land Holdings. At September 30, 2012, we had the following land tracts:

($ in millions) Location	Acreage	Cost to Date
Washington, DC	0.9	$	17.3
Houston, TX	13.2	6.9
Dallas, TX	7.2	8.6
Las Vegas, NV	19.6	4.2
Other	4.8	4.2
Total	45.7	$	41.2

Results of Operations

Changes in revenues and expenses related to our operating properties from period to period are due primarily to the performance of stabilized properties in the portfolio, the lease-up of newly constructed properties, acquisitions, and dispositions. Where appropriate, comparisons of income and expense for communities included in continuing operations are made on a dollars-per-weighted average apartment home basis in order to adjust for such changes in the number of apartment homes owned during each period. Selected weighted averages for the three and nine months ended September 30, 2012 and 2011 are as follows:

($ in thousands)	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
Average monthly property revenue per apartment home	$	1,189		$	1,126		$	1,163		$	1,101
Annualized total property expenses per apartment home	$	5,369		$	5,398		$	5,265		$	5,228
Weighted average number of operating apartment homes owned 100%	54,461			48,627			53,204			48,601
Weighted average occupancy of operating apartment homes owned 100% *	95.4		%	95.1		%	95.2		%	94.7		%

* Our one student housing community is excluded from this calculation.

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Property-level operating results

The following tables present the property-level revenues and property-level expenses, excluding discontinued operations, for the three and nine months ended September 30, 2012 as compared to the same periods in 2011:

($ in thousands)	Apartment Homes At 9/30/12	Three Months Ended September 30,				Change					Nine Months Ended September 30,				Change
		2012		2011		$			%		2012		2011		$			%
Property revenues:
Same store communities	47,251	$	169,087	$	158,621	$	10,466		6.6	%	$	494,984	$	464,980	$	30,004		6.5	%
Non-same store communities	7,490	22,136		4,286		17,850			416.5		54,798		12,635		42,163			333.7
Development and lease-up communities	2,216	1,657		—		1,657			*		2,236		—		2,236			*
Other	—	1,324		1,317		7			0.5		4,805		3,784		1,021			27.0
Total property revenues	56,957	$	194,204	$	164,224	$	29,980		18.3	%	$	556,823	$	481,399	$	75,424		15.7	%
Property expenses:
Same store communities	47,251	$	63,148	$	62,886	$	262		0.4	%	$	185,372	$	182,452	$	2,920		1.6	%
Non-same store communities	7,490	8,836		1,719		7,117			414.0		21,671		4,796		16,875			351.9
Development and lease-up communities	2,216	509		—		509			*		760		—		760			*
Other	—	611		1,018		(407		)	(40.0	)	2,274		3,322		(1,048		)	(31.5	)
Total property expenses	56,957	$	73,104	$	65,623	$	7,481		11.4	%	$	210,077	$	190,570	$	19,507		10.2	%

* Not a meaningful percentage

Same store communities are communities we owned and were stabilized as of January 1, 2011, excluding properties held for sale and communities under major redevelopment. Non-same store communities are stabilized communities we have acquired or developed after January 1, 2011 or communities which underwent major redevelopment after January 1, 2011, excluding properties held for sale. Development and lease-up communities are non-stabilized communities we have acquired or developed after January 1, 2011, excluding properties held for sale and communities under major redevelopment. Other includes results from non-multifamily rental properties, above/below market lease amortization related to acquired communities, and expenses primarily relating to land holdings not under active development.

Same store analysis

Same store rental revenues increased approximately $8.9 million, or 6.5%, during the three months ended September 30, 2012, as compared to the same period in 2011, due to a 5.6% increase in average rental rates and a 0.5% increase in average occupancy for our same store portfolio. During the three months ended September 30, 2012, average rental rates on new leases were 4.4% higher than expiring lease rates and average rental rates on renewal leases were 7.9% higher than expiring leases rates. Same store rental revenues increased approximately $25.7 million, or 6.5%, during the nine months ended September 30, 2012 as compared to the same period in 2011, due to a 5.6% increase in average rental rates and a 0.6% increase in average occupancy for our same store portfolio. During the nine months ended September 30, 2012, average rental rates on new leases were 4.6% higher than expiring lease rates and average rental rates on renewal leases were 8.1% higher than expiring lease rates. We believe the increases to rental revenue were due in part to a gradually improving economy, favorable demographics, a modest supply of new multifamily housing, and a decline in home ownership rates. Additionally, there was a $1.6 million and $4.3 million increase in other property revenue during the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011, primarily due to increases in revenues from ancillary income from our utility rebilling programs and miscellaneous fees and charges.

Property expenses from our same store communities increased approximately $0.3 million, or 0.4%, for the three months ended September 30, 2012, and increased approximately $2.9 million, or 1.6%, for the nine months ended September 30, 2012, as compared to the same periods in 2011. The increases were primarily due to higher real estate taxes as a result of increased property valuations and property tax rates at a number of our communities, offset partially by refunds received on successful protests of prior year tax assessments. The increases were also due to higher salaries and benefit expenses due to increases in annual compensation and higher benefit costs. Utility expenses, including costs associated with our utility rebilling programs, decreased approximately $0.3 million during the three months ended September 30, 2012 and increased approximately $0.6 million during the nine months ended September 30, 2012 as compared to the same periods in 2011. The decrease during the three months ended September 30, 2012 was primarily related to lower electricity, natural gas and trash removal expense. Excluding the expenses associated with our utility rebilling programs, same store property expenses for the three months ended September 30, 2012 increased approximately $0.4 million, or 0.7%, and increased approximately $2.5 million, or 1.5%, for the nine months ended September 30, 2012, as compared to the same periods in 2011.

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Non-same store and development and lease-up analysis

Property revenues and expenses from non-same store and development and lease-up communities increased approximately $19.5 million and $7.6 million for the three months ended September 30, 2012, respectively, as compared to the same period in 2011. The increases were primarily due to approximately $12.2 million of revenues and approximately $4.9 million of expenses recognized during the three months ended September 30, 2012 related to twelve joint venture communities we consolidated during January 2012, which were previously accounted for in accordance with the equity method of accounting. The increases were also due to approximately $2.4 million of revenues and approximately $1.1 million of expenses recognized during the three months ended September 30, 2012 related to the acquisition of two operating properties completed in June and July of 2012. The increases for non-same store properties were also related to three properties in our development pipeline reaching stabilization during the three months ended September 30, 2012. The increases in our development and lease-up communities were related to the completion and partial lease-up of three properties in our development pipeline during the three months ended September 30, 2012.

Property revenues and expenses from non-same store and development and lease-up communities increased approximately $44.4 million and $17.6 million for the nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. The increases were primarily due to approximately $32.7 million of revenues and approximately $13.2 million of expenses related to twelve joint venture communities we consolidated during January 2012. The increases were also due to approximately $2.5 million of revenues and approximately $1.1 million of expenses recognized during the nine months ended September 30, 2012 related to the acquisition of two operating properties completed in June and July of 2012. The increases for non-same store properties were also related to three properties in our development pipeline reaching stabilization during the three months ended September 30, 2012. The increases in our development and lease-up communities were related to the completion and partial lease-up of three properties in our development pipeline during the nine months ended September 30, 2012.

Other property analysis

Other property revenues increased approximately $1.0 million for the nine months ended September 30, 2012, as compared to the same period in 2011. The increase was primarily due to revenues of approximately $1.2 million for the nine months ended September 30, 2012 from above and below market lease amortization related to twelve joint venture communities we consolidated during January 2012.

Other property expenses decreased approximately $0.4 million and $1.0 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. The decreases were primarily related to decreases in property taxes expensed on three land holdings on which we initiated development activities in 2012. As a result, we started capitalizing expenses, including property taxes, on these development properties.

Non-property income

($ in thousands)	Three Months Ended September 30,						Change				Nine Months Ended September 30,					Change
	2012			2011			$		%		2012			2011		$			%
Fee and asset management	$	3,041		$	2,646		$	395	14.9	%	$	9,572		$	6,955	$	2,617		37.6	%
Interest and other income (loss)	3			(108		)	111		(102.8	)	(750		)	4,749		(5,499		)	(115.8	)
Income (loss) on deferred compensation plans	(1,781		)	(6,096		)	4,315		(70.8	)	3,820			1,233		2,587			209.8
Total non-property income	$	1,263		$	(3,558	)	$	4,821	(135.5	)%	$	12,642		$	12,937	$	(295	)	(2.3	)%

Fee and asset management income increased approximately $0.4 million and $2.6 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. These increases were primarily due to increases in property management, development and construction fees due to acquisitions completed and development communities started by our funds in 2011 and 2012. These increases were also due to increased levels of third-party construction activities for the three and nine months ended September 30, 2012 as compared to the same periods in 2011. These increases were partially offset by a decrease in property management fees due to our consolidation of twelve joint venture communities in January 2012, which were previously accounted for in accordance with the equity method of accounting, and the sale of four operating properties by one of our unconsolidated joint ventures during the fourth quarter of 2011.

Interest and other income (loss) increased approximately $0.1 million for the three months ended September 30, 2012, and decreased approximately $5.5 million for the nine months ended September 30, 2012, as compared to the same periods in 2011. The increase during the three months ended September 30, 2012 as compared to the same period in 2011 was primarily due to a

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decrease in losses recognized on non-designated hedges. The decrease during the nine months ended September 30, 2012 as compared to the same period in 2011 was primarily due to an approximately $4.3 million gain recognized during the three months ended March 31, 2011 relating to the sale of an available-for-sale investment, and an increase in losses recognized on non-designated hedges of approximately $0.7 million during the nine months ended September 30, 2012.

Our deferred compensation plans incurred a loss of approximately $1.8 million and $6.1 million during the three months ended September 30, 2012 and 2011, respectively. Our deferred compensation plans earned income of approximately $3.8 million and $1.2 million during the nine months ended September 30, 2012 and 2011, respectively. The changes were related to the performance of the investments held in deferred compensation plans for participants and were directly offset by the expense (benefit) related to these plans, as discussed below.

Other expenses

($ in thousands)	Three Months Ended September 30,						Change					Nine Months Ended September 30,				Change
	2012			2011			$			%		2012		2011		$			%
Property management	$	5,509		$	5,050		$	459		9.1	%	$	15,644	$	15,478	$	166		1.1	%
Fee and asset management	1,864			1,330			534			40.2		5,051		4,220		831			19.7
General and administrative	9,303			8,572			731			8.5		27,712		26,392		1,320			5.0
Interest	25,865			27,354			(1,489		)	(5.4	)	78,795		85,472		(6,677		)	(7.8	)
Depreciation and amortization	52,588			43,367			9,221			21.3		155,579		133,547		22,032			16.5
Amortization of deferred financing costs	909			1,344			(435		)	(32.4	)	2,721		4,761		(2,040		)	(42.8	)
Expense (benefit) on deferred compensation plans	(1,781		)	(6,096		)	4,315			(70.8	)	3,820		1,233		2,587			209.8
Total other expenses	$	94,257		$	80,921		$	13,336		16.5	%	$	289,322	$	271,103	$	18,219		6.7	%

Property management expense, which represents regional supervision and accounting costs related to property operations, increased approximately $0.5 million and $0.2 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. Property management expenses were approximately 2.8% of total property revenues for each of the three and nine months ended September 30, 2012, and approximately 3.1% and 3.2% for the three and nine months ended September 30, 2011, respectively. The increases were primarily due to higher salaries, benefits, and incentive compensation expenses partially offset by a decrease in administrative costs.

Fee and asset management expense, which represents expenses related to third-party construction projects and property management of our joint ventures, increased approximately $0.5 million and $0.8 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. The increases were primarily related to an increase in expenses related to the management of acquisitions completed and development communities started by our funds during 2011 and 2012. The increases were also due to higher salaries and incentive compensation incurred during the three and nine months ended September 30, 2012 as compared to the same period in 2011. The increases were partially offset by decreases in expenses resulting from our consolidation of twelve joint venture communities in January 2012, which were previously accounted for in accordance with the equity method of accounting, and the sale of four operating properties by one of our unconsolidated joint ventures during the fourth quarter of 2011.

General and administrative expense increased approximately $0.7 million and $1.3 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. The increase during the three months ended September 30, 2012 as compared to the same period in 2011 was primarily due to increases in salaries, benefits and incentive compensation expenses of approximately $0.6 million. The increase was also due to an increase in acquisition costs of approximately $0.3 million relating to acquisitions completed during the three months ended September 30, 2012. These increases were partially offset by an increase in costs capitalized of approximately $0.1 million due to an increase in development and construction activities during the three months ended September 30, 2012 as compared to the same period in 2011.

The increase in general and administrative expense during the nine months ended September 30, 2012 as compared to the same period in 2011 was primarily due to increases in salaries, benefits and incentive compensation expenses of approximately $1.9 million and an increase in professional fees of approximately $1.1 million primarily relating to higher consulting fees, audit costs and legal expenses. The increase was also due to an increase in trust manager fees of approximately $0.2 million and an increase in acquisition costs of approximately $0.4 million. These increases were offset by approximately $2.1 million in one-

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time bonuses awarded to all non-executive employees in the first quarter of 2011. The increase was also partially offset by an increase in costs capitalized of approximately $0.7 million due to an increase in development and construction activities during the nine months ended September 30, 2012 as compared to the same period in 2011. General and administrative expenses were 4.7% and 4.9% of total property revenues and non-property income, excluding income (loss) on deferred compensation plans, for the three and nine months ended September 30, 2012, respectively. Excluding the $2.1 million one-time bonus awards, general and administrative expenses were 5.1% and 4.9% of total property revenues and non-property income, excluding income (loss) on deferred compensation plans, for the three and nine months ended September 30, 2011, respectively.

Interest expense for the three and nine months ended September 30, 2012 decreased approximately $1.5 million and $6.7 million, respectively, as compared to the same periods in 2011. The decrease during the three months ended September 30, 2012 as compared to the same period in 2011 was primarily due to the repayment of three secured notes payable during the second and third quarters of 2012, and higher capitalized interest of approximately $0.6 million during the three months ended September 2012 due to higher average balances in our development pipeline. The decrease was also due to lower interest expense recognized on our variable interest rate debt due to lower weighted average interest rates during the three months ended September 30, 2012.

The decrease in interest expense during the nine months ended September 30, 2012 as compared to the same period in 2011 was primarily due to the repayment of our $500 million term loan in June 2011, the retirement of two unsecured notes payable during the first half of 2011, and the retirement of three secured notes payable during the second and third quarters of 2012. The decrease was also due to higher capitalized interest of approximately $3.3 million during the nine months ended September 30, 2012 due to higher average balances in our development pipeline. We also recognized lower interest expense on our variable rate debt due to a decrease in average interest rates during the nine months ended September 30, 2012. These decreases were partially offset by an increase in interest expense related to our issuance of $500 million senior unsecured notes payable completed in June 2011.

Depreciation and amortization increased approximately $9.2 million and $22.0 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011, primarily due to the consolidation of twelve joint venture communities in January 2012, which were previously accounted for using the equity method of accounting and the acquisition of two operating properties completed in June and July of 2012. The increases were also due to the completion of units in our development pipeline and an increase in capital improvements placed in service during 2011 and 2012.

Amortization of deferred financing costs decreased approximately $0.4 million and $2.0 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. The decreases were due to lower amortization of financing costs as a result of an amendment to our $500 million credit facility in September 2011 which extended the maturity date three years. The decrease during the nine months ended September 30, 2012 as compared to the same period in 2011 was also due to lower amortization of financing costs and the write-off of approximately $0.5 million of unamortized loan costs associated with the repayment of the $500 million term loan in June 2011. The decrease during the nine months ended September 30, 2012 was partially offset by higher amortization of financing costs associated with the issuance of $500 million senior unsecured notes completed in June 2011.

Our deferred compensation plans earned a benefit of approximately $1.8 million and $6.1 million during the three months ended September 30, 2012 and 2011, respectively. Our deferred compensation plans incurred expenses of approximately $3.8 million and $1.2 million during the nine months ended September 30, 2012 and 2011, respectively. The changes were related to the performance of the investments held in deferred compensation plans for participants and were directly offset by the income (loss) related to these plans, as discussed in non-property income, above.

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Other

	Three Months Ended September 30,						Change					Nine Months Ended September 30,						Change
($ in thousands)	2012			2011			$			%		2012			2011			$			%
Gain on acquisition of controlling interest in joint ventures	$	—		$	—		$	—		—	%	$	40,191		$	—		$	40,191		*%
Gain on sale of properties, including land	—			—			—			—		—			4,748			(4,748		)	*
Gain on sale of unconsolidated joint venture interests	—			—			—			—		—			1,136			(1,136		)	*
Loss on discontinuation of hedging relationship	—			—			—			—		—			(29,791		)	29,791			*
Equity in income (loss) of joint ventures	3,688			(556		)	4,244			*		4,686			(166		)	4,852			*
Income tax expense – current	(334		)	(313		)	(21		)	6.7		(992		)	(1,889		)	897			(47.5	)

* Not a meaningful percentage.

As of December 31, 2011, we held a 20% ownership interest in twelve unconsolidated joint ventures that owned twelve apartment communities containing 4,034 apartment homes located in Dallas, Houston, Las Vegas, Phoenix, and Southern California. In January 2012, we acquired the remaining 80% ownership interests in these joint ventures resulting in these entities being wholly-owned. We acquired these interests for a cash price of $99.5 million and the assumption of existing mortgage debt in the amount of $272.6 million which we subsequently repaid. The acquisition and debt repayment was funded with net proceeds raised through a public equity offering in January 2012. We previously accounted for the joint ventures under the equity method of accounting. As the joint ventures are now 100% owned by us, the related assets, liabilities, and results of their operations are included in the consolidated financial statements from the date of acquisition. The acquisition resulted in a gain of approximately $40.2 million, which represented the difference between the fair market value of our previously owned equity interests and the cost basis.

Gain on sale of properties, including land, totaled approximately $4.7 million for the nine months ended September 30, 2011. The gain in 2011 was due to a sale of one of our land development properties located in Washington, DC in April 2011 to one of the funds and the sale of one of our development properties located in Austin, Texas to this fund in June 2011.

Gain on sale of unconsolidated joint venture interests totaled approximately $1.1 million for the nine months ended September 30, 2011 due to the sale of our ownership interests in three unconsolidated joint ventures in March 2011.

The loss on discontinuation of hedging relationship was due to the discontinuation of a cash flow hedge associated with the repayment of our $500 million term loan in June 2011.

Equity in income (loss) of joint ventures increased approximately $4.2 million and $4.9 million for the three and nine months ended September 30, 2012, respectively, as compared to the same periods in 2011. These increases were primarily due to a $2.9 million gain recognized in equity in income (loss) of joint ventures relating to our proportionate share of the gain on sale of one operating property by one of our funds in August 2012. These increases were also due to an increase in earnings recognized during the three and nine months ended September 30, 2012 relating to higher rental income from the stabilized operating joint venture properties and increases in earnings relating to acquisitions of nine operating properties by the funds during May and June of 2011 and the acquisition of six operating properties by the funds during the second half of 2011. These increases were partially offset by the acquisition and consolidation by us of twelve operating joint ventures in January 2012 which were previously accounted for in accordance with the equity method of accounting, and the sale of four operating properties by one of our unconsolidated joint ventures during the fourth quarter of 2011. The increase during the nine months ended September 30, 2012 was further offset by a decrease in earnings recognized due to the sale of our ownership interests in two unconsolidated operating joint ventures in March 2011.

Income tax expense decreased approximately $0.9 million for the nine months ended September 30, 2012 as compared to the same period in 2011. The decrease during the nine months ended September 30, 2012 as compared to the same period in 2011 was due to approximately $1.0 million associated with income taxes from the gain recognized on the sale of our available-for-sale investment during the first quarter of 2011. This decrease was partially offset by an increase in taxable income related to our third-party construction activities conducted in a taxable REIT subsidiary.

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Funds from Operations (“FFO”)

Management considers FFO to be an appropriate measure of the financial performance of an equity REIT. The National Association of Real Estate Investment Trusts (“NAREIT”) currently defines FFO as net income (computed in accordance with accounting principles generally accepted in the United States of America ("GAAP")), excluding gains (or losses) associated with previously depreciated operating properties, real estate depreciation and amortization, impairments of depreciable assets, and adjustments for unconsolidated joint ventures. Our calculation of diluted FFO also assumes conversion of all potentially dilutive securities, including certain noncontrolling interests, which are convertible into common shares. We consider FFO to be an appropriate supplemental measure of operating performance because, by excluding gains or losses on dispositions of operating properties and depreciation, FFO can help one compare the operating performance of a company’s real estate investments between periods or as compared to different companies.

To facilitate a clear understanding of our consolidated historical operating results, we believe FFO should be examined in conjunction with net income attributable to common shareholders as presented in the condensed consolidated statements of income and comprehensive income and data included elsewhere in this report. FFO is not defined by GAAP and should not be considered as an alternative to net income attributable to common shareholders as an indication of our operating performance. Additionally, FFO as disclosed by other REITs may not be comparable to our calculation.

Reconciliations of net income attributable to common shareholders to diluted FFO for the three and nine months ended September 30, 2012 and 2011 are as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
($ in thousands)	2012			2011		2012			2011
Funds from operations
Net income attributable to common shareholders	$	30,703		$	11,840	$	141,224		$	2,529
Real estate depreciation and amortization, including discontinued operations	51,698			43,286		153,090			133,342
Adjustments for unconsolidated joint ventures	1,885			3,223		6,198			7,042
Gain on acquisition of controlling interests in joint ventures	—			—		(40,191		)	—
Gain on sale of unconsolidated joint venture property	(2,875		)	—		(2,875		)	—
Gain on sale of unconsolidated joint venture interests	—			—		—			(1,136		)
Gain on sale of discontinued operations, net of tax	—			—		(32,541		)	—
Income allocated to noncontrolling interests	702			458		2,504			1,494
Funds from operations – diluted	$	82,113		$	58,807	$	227,409		$	143,271
Weighted average shares – basic	85,631			73,242		82,923			72,502
Incremental shares issuable from assumed conversion of:
Common share options and awards granted	662			793		655			715
Common units	2,221			2,459		2,244			2,468
Weighted average shares – diluted	88,514			76,494		85,822			75,685

Liquidity and Capital Resources

Financial Condition and Sources of Liquidity

We intend to maintain a strong balance sheet and preserve our financial flexibility, which we believe should enhance our ability to identify and capitalize on investment opportunities as they become available. We intend to maintain what management believes is a conservative capital structure by:

• extending and sequencing the maturity dates of our debt where practicable;

• managing interest rate exposure using what management believes to be prudent levels of fixed and floating rate debt;

• maintaining what management believes to be conservative coverage ratios; and

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• using what management believes to be a prudent combination of debt and equity.

Our interest expense coverage ratio, net of capitalized interest, was approximately 4.2 times and 3.9 times for the three and nine months ended September 30, 2012, respectively, and approximately 3.2 times and 3.1 times for the three and nine months ended September 30, 2011, respectively. This ratio is a method for calculating the amount of operating cash flows available to cover interest expense and is calculated by dividing interest expense for the period into the sum of property revenues and expenses, non-property income, other expenses, income from discontinued operations after adding back depreciation, amortization, and interest expense from both continuing and discontinued operations. Approximately 76.5% and 71.6% of our properties (based on invested capital) were unencumbered as of September 30, 2012 and 2011, respectively. Our weighted average maturity of debt, including amounts outstanding on our line of credit, was approximately 6.2 years at September 30, 2012.

We intend to continue to focus on strengthening our capital and liquidity positions by continuing to focus on our core fundamentals which are generating positive cash flows from operations, maintaining appropriate debt levels and leverage ratios, and controlling overhead costs.

Our primary source of liquidity is cash flow generated from operations. Other sources include availability under our unsecured credit facility and other short-term borrowings, proceeds from dispositions and secured mortgages, equity issued from our ATM programs, and the use of debt and equity offerings under our automatic shelf registration statement. We believe our liquidity and financial condition are sufficient to meet all of our reasonably anticipated cash needs during the remainder of 2012 including:

• normal recurring operating expenses;

• current debt service requirements, including debt maturities;

• recurring capital expenditures;

• initial funding of property developments, acquisitions, joint venture investments; and

• the minimum dividend payments required to maintain our REIT qualification under the Code.

Factors which could increase or decrease our future liquidity include but are not limited to volatility in capital and credit markets, sources of financing, our ability to complete asset purchases or sales, the effect our debt level and changes in credit ratings could have on our costs of funds and our ability to access capital markets.

Cash Flows

Certain sources and uses of cash, such as the level of discretionary capital expenditures and repurchases of debt and common shares, are within our control and are adjusted as necessary based upon, among other factors, market conditions. The following is a discussion of our cash flows for the three and nine months ended September 30, 2012 and 2011.

Net cash from operating activities was approximately $250.0 million during the nine months ended September 30, 2012 as compared to approximately $200.8 million for the same period in 2011. The increase was primarily due to growth in property revenues directly attributable to increased rental and occupancy rates from our same store communities and the growth in non-same store revenues as we consolidated twelve joint ventures in the first quarter of 2012. The increase in non-same store revenues also related to acquisitions of two operating properties completed in June and July of 2012. This increase in revenues was partially offset by the increase in property expenses from our same store and non-same store communities which include the property expenses of the twelve joint ventures and the two operating properties acquired. See further discussions of our 2012 operations as compared to 2011 in “Results of Operations.”

Net cash used in investing activities during the nine months ended September 30, 2012 totaled $458.4 million as compared to $146.2 million during the nine months ended September 30, 2011. Cash outflows for property development and capital improvements were approximately $202.7 million during the nine months ended September 30, 2012 as compared to approximately $155.1 million for the same period in 2011 due primarily to an increase in construction and development activity during the nine months ended September 30, 2012 as compared to the same period in 2011. The property development and capital improvements during the nine months ended September 30, 2012 included expenditures for new development, including land, of approximately $115.4 million, capitalized interest, real estate taxes, and other capitalized indirect costs of approximately $14.9 million, approximately $26.2 million related to redevelopment expenditures, and approximately $46.2 million of other capital expenditures. The property development and capital improvements during the nine months ended September 30, 2011 included expenditures for new development, including land, of approximately $96.8 million, capitalized interest, real estate taxes, and other capitalized indirect costs of approximately $10.3 million, approximately $6.6 million related to redevelopment expenditures, and

41

approximately $41.4 million of other capital expenditures.

Additional cash outflows used in investing activities during the nine months ended September 30, 2012 related to acquisitions of four operating properties and the controlling interests in twelve former joint ventures, net of cash acquired, totaling approximately $305.3 million. During the nine months ended September 30, 2012 we also used approximately $6.7 million for investments in joint ventures relating to acquisitions of an operating property and two land development properties by one of our funds, in which we own a 20% interest. During the nine months ended September 30, 2011, cash outflows for investments in joint ventures were approximately $35.3 million due to thirteen acquisitions of operating properties completed by our funds. Cash outflows were partially offset by proceeds of $54.1 million from the sale of three operating properties during the nine months ended September 30, 2012 and approximately $38.4 million from the sale of three operating joint venture properties and the sale of two land development properties to one of our joint ventures during the nine months ended September 30, 2011. Cash outflows were further offset by distributions of investments from joint ventures of approximately $9.2 million during the nine months ended September 30, 2012, which included $4.4 million in distributions of investments from one of our funds relating to the sale of an operating property in the third quarter of 2012. Distributions of investments from joint ventures received during the nine months ended September 30, 2011 was approximately $2.5 million.

Net cash provided by financing activities totaled approximately $158.9 million for the nine months ended September 30, 2012 as compared to net cash used in financing activities of $169.1 million during the same period in 2011. During the nine months ended September 30, 2012, we received net proceeds of approximately $693.4 million from the issuance of 11.2 million shares from our ATM programs and through an equity offering completed in January 2012. Cash inflows during the nine months ended September 30, 2012 also included proceeds of approximately $34.0 million, net of payments, relating to draws on our unsecured line of credit and proceeds of approximately $12.6 million from common share options exercised during the period. The inflow during the nine months ended September 30, 2012 was partially offset by cash outflows of approximately $272.6 million used to repay the mortgage debt of twelve former joint ventures we acquired in January 2012, and $73.0 million used to repay maturing secured notes. Cash inflows during this period were also offset by approximately $100.0 million used to redeem our perpetual preferred units and approximately $138.6 million used for distributions paid to common shareholders, perpetual preferred unit holders, and noncontrolling interest holders. During the nine months ended September 30, 2011, we used approximately $626.4 million to repay our outstanding $500 million term loan and maturing outstanding unsecured notes payable. We also used approximately $112.9 million during this period for distributions paid to common shareholders, perpetual preferred unit holders, and noncontrolling interest holders. The cash outflows during the nine months ended September 30, 2011 were partially offset by $495.7 million provided from the issuance of two series of unsecured notes completed in June 2011, net proceeds of approximately $69.9 million provided from the issuance of 1.1 million common shares under our ATM programs, and net proceeds of approximately $11.3 million provided from common share options exercised during the period.

Financial Flexibility

We have a $500 million unsecured credit facility which matures in September 2015 with an option to extend at our election to September 2016. Additionally, we have the option to increase this credit facility to $750 million by either adding additional banks to the credit facility or obtaining the agreement of the existing banks in the credit facility to increase their commitments. The interest rate is based upon LIBOR plus a margin which is subject to change as our credit ratings change. Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates. These bid rate loans have terms of 180 days or less and may not exceed the lesser of $250 million or the remaining amount available under the line of credit. The line of credit is subject to customary financial covenants and limitations. We are in compliance with all such financial covenants and limitations.

Our line of credit provides us with the ability to issue up to $100 million in letters of credit. While our issuance of letters of credit does not increase our borrowings outstanding under our line of credit, it does reduce the amount available. At September 30, 2012, we had outstanding letters of credit totaling approximately $10.9 million, leaving approximately $455.1 million available under our unsecured line of credit.

We currently have an automatic shelf registration statement with the SEC which allows us to offer, from time to time, an unlimited amount of common shares, preferred shares, debt securities, or warrants. In January 2012, we issued 6,612,500 common shares in a public equity offering and received approximately $391.6 million in net proceeds. We utilized a portion of these proceeds to fund the acquisition of the remaining 80% interest we did not own in twelve real estate joint ventures. See Note 6, “Property Acquisitions, Discontinued Operations, and Assets Held for Sale” for further discussion of this transaction.

On May 11, 2012, the shareholders of the Company approved an amendment to our Amended and Restated Declaration of Trust to increase our total number of authorized shares from 110.0 million to 185.0 million shares of beneficial interest, consisting of 175.0 million common shares and 10.0 million preferred shares.

42

In May 2011, we created an ATM program through which we could, but had no obligation to, sell common shares having an aggregate offering price of up to $300 million (the “2011 ATM program”) in amounts and at times as we determined, into the existing trading market at current market prices as well as through negotiated transactions. The net proceeds resulting from the 2011 ATM program were used to redeem all of our outstanding redeemable perpetual preferred units and for other general corporate purposes, which included funding for development activities, financing of acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness. The 2011 ATM program was terminated in the second quarter of 2012, and no further common shares are available for sale under the 2011 ATM program.

In May 2012, we created an ATM program through which we can, but have no obligation to, sell common shares having an aggregate offering price of up to $300 million (the "2012 ATM program"), in amounts and at times as we determine, into the existing trading market at current market prices as well as through negotiated transactions. Actual sales from time to time may depend on a variety of factors, including, among others, market conditions, the trading price of our common shares, and determinations by management of the appropriate sources of funding for us. We intend to use the net proceeds from the 2012 ATM program for general corporate purposes, which may include funding for development activities, financing for acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness.

We believe our ability to access capital markets is enhanced by our senior unsecured debt ratings by Moody’s, Fitch, and Standard and Poor’s, which are currently Baa1, BBB+ and BBB, respectively, with stable, stable and positive outlooks, respectively, as well as by our ability to borrow on a secured basis from various institutions including banks, Fannie Mae, Freddie Mac, or life insurance companies. However, we may not be able to maintain our current credit ratings and may not be able to borrow on a secured or unsecured basis in the future.

Future Cash Requirements and Contractual Obligations

One of our principal long-term liquidity requirements includes the repayment of maturing debt, including any future borrowings under our unsecured line of credit. During the remainder of 2012, approximately $190.3 million of unsecured debt, including scheduled principal amortizations of approximately $0.6 million, are scheduled to mature. On October 1, 2012, we repaid a $31.5 million secured third-party note payable which was scheduled to mature in August 2013. This secured debt related to a fully-consolidated joint venture in which we acquired the remaining noncontrolling ownership interest in September 2012.

We intend to incur approximately $178.0 million of additional expected costs to complete our consolidated communities under construction. Of this amount, we expect approximately $31.0 million to $34.0 million will be incurred during the last quarter of 2012 and the remainder of the costs to be incurred during 2013 and 2014. Additionally, we also expect to incur between approximately $10.0 million and $13.0 million of additional redevelopment expenditures and $15.0 million and $17.0 million of additional other capital expenditures during the last quarter of 2012.

We intend to meet our near-term liquidity requirements through cash flows generated from operations, draws on our unsecured credit facility, proceeds from secured mortgages and property dispositions. We continually evaluate our operating property and land development portfolio and plan to continue our practice of selective dispositions as market conditions warrant and opportunities develop. We also intend to meet our near-term liquidity requirements through equity issued from our ATM programs, and the use of debt and equity offerings under our automatic shelf registration statement.

In order for us to continue to qualify as a REIT, we are required to distribute annual dividends to our shareholders equal to a minimum of 90% of our REIT taxable income, computed without regard to the dividends paid deduction and our net capital gains. In September 2012, we announced our Board of Trust Managers had declared a quarterly dividend of $0.56 per share, to our common shareholders of record as of September 28, 2012. The dividend was subsequently paid on October 17, 2012, and we paid equivalent amounts per unit to holders of the common operating partnership units. Assuming similar dividend distributions for the remainder of 2012, our annualized dividend rate for 2012 would be $2.24 per share or unit.

Off-Balance Sheet Arrangements

The joint ventures in which we have an interest have been funded in part with secured, third-party debt. As of September 30, 2012, we have no outstanding guarantees related to loans of our unconsolidated joint ventures.

Inflation

Substantially all of our apartment leases are for a term generally ranging from six to fifteen months. In an inflationary environment, we may realize increased rents at the commencement of new leases or upon the renewal of existing leases. We believe the short-term nature of our leases generally minimizes our risk from the adverse effects of inflation.

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Critical Accounting Policies

Our critical accounting policies have not changed materially from information reported in our Annual Report on Form 10-K for the year ended December 31, 2011.

Recent Accounting Pronouncements. In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2011-04 (“ASU 2011-04”), “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS.” ASU 2011-04 requires entities to separately disclose the amounts and reasons for any transfers of assets and liabilities into and out of Level 1 and Level 2 of the fair value hierarchy. For fair value measurements using significant unobservable inputs (Level 3), entities are required to disclose quantitative information about the significant unobservable inputs used for all Level 3 measurements and a description of the valuation processes in determining fair value. In addition, ASU 2011-04 requires entities to provide a qualitative discussion about the sensitivity of recurring Level 3 measurements to changes in the unobservable inputs disclosed, including the interrelationship between inputs. Entities are also required to disclose information about when the current use of a non-financial asset measured at fair value differs from its highest and best use and the hierarchy classification for items whose fair value is not recorded in the balance sheet but is disclosed in the notes. We did not have any changes to our existing classification and measurement of fair value upon adoption on January 1, 2012. Refer to Note 14, "Fair Value Disclosures" and the fair value discussion above for additional disclosures resulting from the adoption of this standard.

In June 2011, the FASB issued Accounting Standards Update 2011-05 (“ASU 2011-05”), “Presentation of Comprehensive Income.” ASU 2011-05 requires all nonowner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Subsequent to the issuance of ASU 2011-05, the FASB issued Accounting Standards Update 2011-12 (“ASU 2011-12”), “Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in ASU 2011-05” which indefinitely defers the ASU 2011-05 requirement for an entity to present reclassification adjustments on the face of the financial statements from other comprehensive income to net income. We adopted ASU 2011-05 and ASU 2011-12 on January 1, 2012, and these adoptions did not have a material effect on our financial statements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

No material changes to our exposures to market risk have occurred since our Annual Report on Form 10-K for the year ended December 31, 2011.

Item 4. Controls and Procedures

Evaluation of disclosure controls and procedures. We carried out an evaluation, under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report pursuant to Securities Exchange Act (“Exchange Act”) Rules 13a-15(e) and 15d-15(e). Based on the evaluation, the Chief Executive Officer and Chief Financial Officer concluded the disclosure controls and procedures as of the end of the period covered by this report are effective to ensure information required to be disclosed by us in our Exchange Act filings is recorded, processed, summarized, and reported within the periods specified in the Securities and Exchange Commission’s rules and forms and is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in internal controls. There were no changes in our internal control over financial reporting (identified in connection with the evaluation required by paragraph (d) in Rules 13a-15 and 15d-15 under the Exchange Act) during our most recent fiscal quarter which have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For discussion regarding legal proceedings, see Note 12, “Commitments and Contingencies,” in the Notes to the condensed consolidated financial statements.

Item 1A. Risk Factors

There have been no material changes to the Risk Factors previously disclosed in Item 1A in our Annual Report on Form 10-K for the year ended December 31, 2011.

44

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

None

Item 5. Other Information

None

45

Item 6. Exhibits

(a) Exhibits
10.1	Amendment No. 1 to the 2011 Share Incentive Plan of Camden Property Trust, dated as of July 31, 2012 (incorporated by reference to Exhibit 99.1 to the Company's current Report of Form 8-K filed on August 6, 2012 (File No. 1-12110)).
*31.1	Certification pursuant to Rule 13a-14(a) of Chief Executive Officer dated November 2, 2012.
*31.2	Certification pursuant to Rule 13a-14(a) of Chief Financial Officer dated November 2, 2012.
*32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes – Oxley Act of 2002.
*101.INS	XBRL Instance Document
*101.SCH	XBRL Taxonomy Extension Schema Document
*101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
*101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
*101.LAB	XBRL Taxonomy Extension Label Linkbase Document
*101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith.

46

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on our behalf by the undersigned thereunto duly authorized.

	CAMDEN PROPERTY TRUST
/s/Michael P. Gallagher	November 2, 2012
Michael P. Gallagher	Date
Vice President – Chief Accounting Officer

47

Exhibit Index

Exhibit	Description of Exhibits
10.1	Amendment No. 1 to the 2011 Share Incentive Plan of Camden Property Trust, dated as of July 31, 2012 (incorporated by reference to Exhibit 99.1 to the Company's current Report of Form 8-K filed on August 6, 2012 (File No. 1-12110)).
*31.1	Certification pursuant to Rule 13a-14(a) of Chief Executive Officer dated November 2, 2012.
*31.2	Certification pursuant to Rule 13a-14(a) of Chief Financial Officer dated November 2, 2012.
*32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes – Oxley Act of 2002.
*101.INS	XBRL Instance Document
*101.SCH	XBRL Taxonomy Extension Schema Document
*101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
*101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
*101.LAB	XBRL Taxonomy Extension Label Linkbase Document
*101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

* Filed herewith.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Richard J. Campo, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Camden Property Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	November 2, 2012	/s/Richard J. Campo
		Richard J. Campo Chairman of the Board of Trust Managers and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Dennis M. Steen, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Camden Property Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	November 2, 2012	/s/Dennis M. Steen
		Dennis M. Steen Senior Vice President-Finance and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, Richard J. Campo, Chairman of the Board and Chief Executive Officer of Camden Property Trust (the “Company”), and Dennis M. Steen, the Senior Vice President-Finance and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1. The Quarterly Report on Form 10-Q of the Company for the period ended September 30, 2012 (the “Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in Quarterly Report on Form 10-Q fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/Richard J. Campo

Richard J. Campo

Chairman of the Board of Trust Managers and

Chief Executive Officer

/s/Dennis M. Steen

Dennis M. Steen

Senior Vice President-Finance and

Chief Financial Officer

November 2, 2012

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Common Shares (Activity Under At-The-Market Share Offering Program) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Total net consideration			$ 693,375,000	$ 69,863,000
2010 and 2011 ATM Programs [Member]
Total net consideration	0	32,736,800	128,128,000	69,862,900
Common shares sold	0	506,200	1,971,400	1,127,900
Average price per common share sold	$ 0	$ 65.76	$ 66.01	$ 63.13
2012 ATM Program [Member]
Total net consideration	$ 88,915,900		$ 173,627,600
Common shares sold	1,302,500		2,607,900
Average price per common share sold	$ 69.34		$ 67.63

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Share-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended										3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Options [Member]	Sep. 30, 2011 Options [Member]	Sep. 30, 2012 Share Awards and Vesting [Member]	Sep. 30, 2011 Share Awards and Vesting [Member]	Sep. 30, 2012 Minimum [Member] Options [Member]	Sep. 30, 2011 Minimum [Member] Options [Member]	Sep. 30, 2012 Maximum [Member] Options [Member]	Sep. 30, 2011 Maximum [Member] Options [Member]	Jun. 30, 2011 2011 Share Incentive Plan [Member]	Sep. 30, 2012 2011 Share Incentive Plan [Member]
Total fungible units to be issued													9,100,000	7,900,000
Units available under the 2011 Share Plan													5,800,000
Fungible units transferred from the 2002 Share Plan to the 2011 Share Plan													3,300,000
Fungible Units To Full Value Award Conversion Ratio													3.45
Expiration value of option right or other award													0.83
Common shares which could be granted pursuant to full value awards														2,300,000
Options exercised			458,881		500,000	500,000
Exercise price range for options exercised during the period									$ 30.06	$ 30.06	$ 51.37	$ 62.32
Total intrinsic value of options exercised during the period					$ 12.0	$ 9.5
Total unrecognized compensation cost related to unvested options which is expected to be amortized					0.6		36.9
Expected amortized period of unrecognized compensation expected to be recognized for share-based compensation plans					2 years		5 years
Remaining weighted average contractual life (years) outstanding options					4 years 73 days
Remaining weighted average contractual life (years) exercisable options					3 years 73 days
Vesting period, years							5 years		3 years		5 years
Options granted in current year			0		0
Fair value of shares vested							13.4	11.0
Total compensation cost for option and share awards	3.6	3.3	10.4	9.5
Total capitalized compensation cost for option and share awards	$ 0.4	$ 0.3	$ 1.1	$ 0.9

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Notes Payable (Narrative) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended				9 Months Ended	3 Months Ended		3 Months Ended		3 Months Ended
	Oct. 31, 2012	Sep. 30, 2012 Y	Sep. 30, 2012 Letter Of Credit [Member]	Sep. 30, 2012 Floating Rate Debt [Member]	Sep. 30, 2011 Floating Rate Debt [Member]	Sep. 30, 2012 Line of Credit [Member]	Jun. 30, 2012 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member]	Jun. 30, 2012 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Sep. 30, 2012 Secured Notes Five Point Zero Seven Percentage Conventional Mortgage Note Due Two Thousand Twelve [Member]	Sep. 30, 2012 Secured Notes Five Point Zero Seven Percentage Conventional Mortgage Note Due Two Thousand Twelve [Member] Secured Debt [Member]	Sep. 30, 2012 Secured Notes Four Point Nine Two Percentage Conventional Mortgage Note Due Two Thousand Twelve [Member]	Sep. 30, 2012 Secured Notes Four Point Nine Two Percentage Conventional Mortgage Note Due Two Thousand Twelve [Member] Secured Debt [Member]
Amount of current borrowing capacity under unsecured credit facility						$ 500
Unsecured Credit Facility, Expiration Date						Sep. 22, 2015
Optional extension period of unsecured credit facility						September 2016
Maximum borrowing capacity under unsecured credit facility			100			750
Maximum term of bid rate loans (days)						180
Lesser of amount stated or the amount available under the line of credit						250
Outstanding letters of credit under credit facility			10.9
Available amount under unsecured credit facility						455.1
Notes payable, effective interest rate								4.92%		5.07%		4.92%
Repayments of secured third-party notes payable	$ 31.5						$ 33.7		$ 19.3		$ 16.7
Extended Maturity Period Of Secured Third Party Note Payable		August 2013
Weighted average interest rate on floating rate debt		4.80%		1.10%	1.10%
Weighted average maturity of indebtedness (including unsecured line of credit) (in years)		6.2

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Share-Based Compensation (Summary Of Share Options Outstanding And Exercisable) (Details) (USD $) In Millions, except Share data, unless otherwise specified				9 Months Ended
	Sep. 30, 2012		Dec. 31, 2011	Sep. 30, 2012 $30.06-$31.48 [Member]		Sep. 30, 2012 $41.16-$43.94 [Member]		Sep. 30, 2012 $45.53-$73.32 [Member]
Range of exercise prices, minimum				$ 30.06		$ 41.16		$ 45.53
Range of exercise prices, maximum				$ 31.48		$ 43.94		$ 73.32
Outstanding Options, Number	848,712	[1]	1,339,536	210,750	[1]	258,632	[1]	379,330	[1]
Outstanding Options, Weighted Average Price	$ 42.41	[1]	$ 42.27	$ 30.06	[1]	$ 42.72	[1]	$ 49.05	[1]
Exercisable Options, Number	561,164	[1]		14,943	[1]	240,000	[1]	306,221	[1]
Exercisable Options, Weighted Average Price	$ 45.93	[1]		$ 30.12	[1]	$ 42.63	[1]	$ 49.30	[1]
Aggregate intrinsic value of outstanding options	$ 18.9
Aggregate Intrinsic Value of Exercisable Options	$ 10.6
Closing share price per share for calculation of aggregate intrinsic values	$ 64.49

[1] The aggregate intrinsic value of outstanding and exercisable options at September 30, 2012 were $18.9 million and $10.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $64.49 per share on September 30, 2012 and the strike price of the underlying award.

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Investments In Joint Ventures (Aggregate Balance Sheet And Statement Of Income Data For Unconsolidated Joint Ventures) (Details) (USD $)	1 Months Ended		3 Months Ended						9 Months Ended
	Jan. 31, 2012	Dec. 31, 2011	Sep. 30, 2012		Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Investments In Joint Ventures [Abstract]
Total assets		$ 1,394,900,000	$ 1,068,100,000	[1]		$ 1,394,900,000			$ 1,068,100,000	[1]
Total third-party debt		1,093,900,000	844,700,000	[1]		1,093,900,000			844,700,000	[1]
Total equity		261,600,000	188,700,000	[1]		261,600,000			188,700,000	[1]
Total revenues			37,500,000	[2]			40,400,000	[2]	111,600,000	[2]	99,100,000	[2]
Net income (loss)			15,300,000				(7,400,000)		13,500,000		(13,800,000)
Equity in income (loss)			3,688,000	[3]			(556,000)	[3]	4,686,000	[3]	(166,000)	[3]
Percentage of voting interests acquired	80.00%		75.00%						75.00%
Number of unconsolidated equity method investments acquired	12
Revenues from discontinued operations attributable to unconsolidated joint venture			$ 2,200,000				$ 5,700,000		$ 7,500,000		$ 16,400,000
Number of operating properties sold		2	1		3	4

[1] In January 2012, as a result of our purchase of the remaining 80% ownership interest in previously unconsolidated joint ventures, we consolidated twelve joint ventures previously accounted for in accordance with the equity method. Refer to Note 6, "Property Acquisitions, Discontinued Operations, and Assets Held for Sale," for further discussion of the acquisition.

[2] Excludes approximately $2.2 million and $7.5 million of revenues for the three and nine months ended September 30, 2012, and $5.7 million and $16.4 million for the three and nine months ended September 30, 2011, respectively, related to discontinued operations within one of our unconsolidated joint ventures resulting from the sale of four operating properties in the fourth quarter of 2011 and one operating property in the fourth quarter of 2012. Discontinued operations also relates to the sale of one operating property in another unconsolidated joint venture during the third quarter of 2012.

[3] Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

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Noncontrolling Interests (Tables)

9 Months Ended

Sep. 30, 2012

Noncontrolling Interests [Abstract]

Effect Of Changes In Ownership Interest In Subsidiaries

The following table summarizes the effect of changes in our ownership interest in subsidiaries on the equity attributable to common shareholders for the nine months ended September 30:

(in thousands)	2012			2011
Net income attributable to common shareholders	$	141,224		$	2,529
Transfers from the noncontrolling interests:
Increase (decrease) in equity for conversion of operating partnership units	(448		)	592
Decrease in additional-paid-in-capital for purchase of remaining noncontrolling ownership interest in a consolidated joint venture	(13,285		)	—
Change in common equity and net transfers from noncontrolling interests	$	127,491		$	3,121

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Net Change In Operating Accounts (Effect Of Changes In The Operating Accounts On Cash Flows From Operating Activities) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Increase (Decrease) in Operating Capital [Abstract]
Other assets, net	$ (8,765)	$ 3,046
Accounts payable and accrued expenses	11,759	11,343
Accrued real estate taxes	20,230	15,048
Other liabilities	(16,322)	(13,131)
Other	599	401
Change in operating accounts and other	$ 7,501	$ 16,707

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Common Shares (Tables)

9 Months Ended

Sep. 30, 2012

2010 and 2011 ATM Programs [Member]

Activity Under At-The-Market Share Offering Program

The following table presents activity under our 2010 and 2011 ATM programs for the periods presented (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 30, 2012		September 30, 2011		September 30, 2012		September 30, 2011
Total net consideration	$	—	$	32,736.8	$	128,128.0	$	69,862.9
Common shares sold	—		506.2		1,971.4		1,127.9
Average price per share	$	—	$	65.76	$	66.01	$	63.13

2012 ATM Program [Member]

Activity Under At-The-Market Share Offering Program

The following table presents activity under our 2012 ATM program for the periods presented (in thousands, except per share amounts):

	Three Months Ended		Nine Months Ended
	September 30, 2012		September 30, 2012
Total net consideration	$	88,915.9	$	173,627.6
Common shares sold	1,302.5		2,607.9
Average price per share	$	69.34	$	67.63

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Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2012
Derivative Instruments and Hedges, Assets [Abstract]
Ineffective portion of the change in fair value of the derivatives	$ 0	$ 0
Fair value of derivatives in a net liability position			$ 1,900,000

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Fair value of assets acquired and liabilities assumed) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]
Buildings and improvements	$ 460.4
Land	134.9
Cash	3.4
Restricted cash	0.7
Intangible and other assets	14.5
Total assets acquired	613.9
Mortgage debt	272.6	[1]
Other liabilities	6.6
Total liabilities assumed	279.2
Net assets acquired	$ 334.7

[1] Mortgage debt assumed was subsequently repaid in January 2012 at face value.

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Per Share Data (Calculation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share [Abstract]
Number of common share equivalent securities excluded from the diluted earnings per share calculation	3,300,000	3,700,000	2,400,000	4,800,000
Income (loss) from continuing operations attributable to common shareholders	$ 30,360	$ 10,751	$ 108,091	$ (638)
Amount allocated to participating securities	(288)	(154)	(1,387)	(118)
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	30,072	10,597	106,704	(756)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343	1,089	33,133	3,167
Net income attributable to common shareholders, as adjusted	30,415	11,686	139,837	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted - per share	$ 0.35	$ 0.14	$ 1.29	$ (0.01)
Income from discontinued operations, including gain on sale, attributable to common shareholders	$ 0.01	$ 0.02	$ 0.40	$ 0.04
Net income attributable to common shareholders, as adjusted - per share	$ 0.36	$ 0.16	$ 1.69	$ 0.03
Weighted average number of common shares outstanding - basic	85,631,000	73,242,000	82,923,000	72,502,000
Income allocated to common units from continuing operations	0	8	1,167	0
Income (loss) from continuing operations attributable to common shareholders, as adjusted	30,072	10,605	107,871	(756)
Net income attributable to common shareholders, as adjusted	$ 30,415	$ 11,694	$ 141,004	$ 2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted - per share	$ 0.35	$ 0.14	$ 1.27	$ (0.01)
Income from discontinued operations, including gain on sale, attributable to common shareholders - per share	$ 0.00	$ 0.02	$ 0.39	$ 0.04
Net income attributable to common shareholders, as adjusted - per share	$ 0.35	$ 0.16	$ 1.66	$ 0.03
Common share options and share awards granted	662,000	793,000	655,000	0
Common units	0	239,000	1,116,000	0
Weighted average number of common shares outstanding - diluted	86,293,000	74,274,000	84,694,000	72,502,000

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Derivative Instruments And Hedging Activities (Fair Value Of Derivative Financial Instruments And Their Classification In The Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Derivative Asset, Fair Value	$ 0	$ 0.1
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Cap [Member]
Derivative Asset, Fair Value	0	0.1
Derivatives Not Designated As Hedging Instruments [Member] | Interest Rate Swaps [Member]
Derivative Liability, Fair Value	$ 0.2	$ 16.6

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Fair Value Disclosures (Fair Value Of Notes Receivable And Notes Payable) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Carrying Value	$ 2,393.7		$ 2,432.1
Fixed Rate Notes Payable [Member]
Carrying Value	2,115.2		2,186.6
Estimated Fair Value	2,351.5		2,304.4
Floating Rate Notes Payable [Member]
Carrying Value	278.5	[1]	245.5	[1]
Estimated Fair Value	$ 269.8	[1]	$ 233.6	[1]

[1] Includes balances outstanding under our unsecured line of credit.

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Notes Payable (Summary Of Indebtedness) (Details) (USD $)					9 Months Ended		9 Months Ended		9 Months Ended		9 Months Ended		9 Months Ended		9 Months Ended					9 Months Ended						9 Months Ended		9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 Senior Unsecured Notes [Member]	Dec. 31, 2011 Senior Unsecured Notes [Member]	Sep. 30, 2012 5.93% Notes Due 2012 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 5.93% Notes Due 2012 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 5.45% Notes Due 2013 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 5.45% Notes Due 2013 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 5.08% Notes Due 2015 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 5.08% Notes Due 2015 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 5.75% Notes Due 2017 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 5.75% Notes Due 2017 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 4.70% Notes Due 2021 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 4.70% Notes Due 2021 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 5.00% Notes Due 2023 [Member] Senior Unsecured Notes [Member]	Dec. 31, 2011 5.00% Notes Due 2023 [Member] Senior Unsecured Notes [Member]	Sep. 30, 2012 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Jun. 30, 2012 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Dec. 31, 2011 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Sep. 30, 2012 1.35% Tax-Exempt Mortgage Note Due 2028 [Member] Secured Debt [Member]	Dec. 31, 2011 1.35% Tax-Exempt Mortgage Note Due 2028 [Member] Secured Debt [Member]	Sep. 30, 2012 Floating Rate Tax-Exempt Debt Included In Secured Notes (1.35%) [Member] Secured Debt [Member]	Dec. 31, 2011 Floating Rate Tax-Exempt Debt Included In Secured Notes (1.35%) [Member] Secured Debt [Member]	Sep. 30, 2012 Floating Rate Debt Included In Secured Notes (0.96% - 1.69%) [Member] Secured Debt [Member]	Dec. 31, 2011 Floating Rate Debt Included In Secured Notes (0.96% - 1.69%) [Member] Secured Debt [Member]	Sep. 30, 2012 Minimum [Member] 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Sep. 30, 2012 Minimum [Member] Floating Rate Debt Included In Secured Notes (0.96% - 1.69%) [Member] Secured Debt [Member]	Sep. 30, 2012 Maximum [Member] 0.96% - 6.00% Conventional Mortgage Notes, Due 2013 - 2045 [Member] Secured Debt [Member]	Sep. 30, 2012 Maximum [Member] Floating Rate Debt Included In Secured Notes (0.96% - 1.69%) [Member] Secured Debt [Member]	Sep. 30, 2012 Line of Credit [Member]	Dec. 31, 2011 Line of Credit [Member]	Sep. 30, 2012 Line of Credit [Member] Commercial Banks [Member]	Dec. 31, 2011 Line of Credit [Member] Commercial Banks [Member]
Unsecured notes payable	$ 1,415,354,000	$ 1,380,755,000	$ 1,381,300,000	$ 1,380,700,000	$ 189,600,000	$ 189,600,000	$ 199,800,000	$ 199,700,000	$ 249,500,000	$ 249,300,000	$ 246,300,000	$ 246,200,000	$ 248,700,000	$ 248,600,000	$ 247,400,000	$ 247,300,000														$ 34,000,000	$ 0	$ 34,000,000	$ 0
Total secured notes payable	978,371,000	1,051,357,000															940,300,000		1,012,300,000	38,100,000	39,100,000	38,100,000	39,100,000	206,400,000	206,400,000
Total notes payable	$ 2,393,700,000	$ 2,432,100,000
Notes payable, effective interest rate					5.93%		5.45%		5.08%		5.75%		4.70%		5.00%			4.92%		1.35%		1.35%				0.96%	0.96%	6.00%	1.69%
Notes payable, maturity date					2012		2013		2015		2017		2021		2023					2028						2013		2045

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Per Share Data

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Per Share Data

3. Per Share Data

Basic earnings per share are computed using net income attributable to common shareholders and the weighted average number of common shares outstanding. Diluted earnings per share reflect common shares issuable from the assumed conversion of common share options and share awards granted and units convertible into common shares. Only those items having a dilutive impact on our basic earnings per share are included in diluted earnings per share. Our unvested share-based awards are considered participating securities and are reflected in the calculation of basic and diluted earnings per share using the two-class method. The number of common share equivalent securities excluded from the diluted earnings per share calculation was approximately 3.3 million and 3.7 million for the three months ended September 30, 2012 and 2011, respectively, and was approximately 2.4 million and 4.8 million for the nine months ended September 30, 2012 and 2011, respectively. These securities, which include common share options and share awards granted and units convertible into common shares, were excluded from the diluted earnings per share calculation as they are anti-dilutive.

The following table presents information necessary to calculate basic and diluted earnings per share for the periods indicated:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2012			2011			2012			2011
Earnings per share calculation – basic
Income (loss) from continuing operations attributable to common shareholders	$	30,360		$	10,751		$	108,091		$	(638	)
Amount allocated to participating securities	(288		)	(154		)	(1,387		)	(118		)
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	30,072			10,597			106,704			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,686		$	139,837		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.29		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	0.01			0.02			0.40			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.36		$	0.16		$	1.69		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Earnings per share calculation – diluted
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	30,072		$	10,597		$	106,704		$	(756	)
Income allocated to common units from continuing operations	—			8			1,167			—
Income (loss) from continuing operations attributable to common shareholders, as adjusted	30,072			10,605			107,871			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,694		$	141,004		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.27		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	—			0.02			0.39			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.35		$	0.16		$	1.66		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	662			793			655			—
Common units	—			239			1,116			—
Weighted average number of common shares outstanding – diluted	86,293			74,274			84,694			72,502

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Noncontrolling Interests (Effect Of Changes In Ownership Interest In Subsidiaries) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Noncontrolling Interests [Abstract]
Net income attributable to common shareholders	$ 30,703	$ 11,840	$ 141,224	$ 2,529
Increase (decrease) in equity for conversion of operating partnership units			(448)	592
Decrease in additional-paid-in-capital for purchase of remaining noncontrolling ownership interest in a consolidated joint venture			(13,285)	0
Change in common equity and net transfers from noncontrolling interests			$ 127,491	$ 3,121

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Pro Forma Consolidated Income Statement Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]
Property revenues	$ 196,396	$ 179,665	$ 571,048	$ 526,824
Property expenses	74,060	72,541	216,160	211,034
Property results	$ 122,336	$ 107,124	$ 354,888	$ 315,790

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Derivative Instruments And Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2012

Derivative Instruments and Hedges, Assets [Abstract]

Schedule Of Outstanding Interest Rate Derivatives

As of September 30, 2012, we had the following outstanding interest rate derivatives which were not designated as hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional Amount
Interest Rate Cap	1	$	175.0	million
Interest Rate Swap (1)	1	$	500.0	million

(1) In October 2012, the interest rate swap matured and was settled.

Fair Value Of Derivative Financial Instruments And Their Classification In The Balance Sheet

The table below presents the fair value of our derivative financial instruments as well as their classification in the condensed consolidated balance sheets at September 30, 2012 and December 31, 2011 (in millions):

Fair Values of Derivative Instruments

Asset Derivatives

Liability Derivatives

September 30, 2012

December 31, 2011

September 30, 2012

December 31, 2011

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives not designated as hedging instruments

Interest Rate Swap

Other Liabilities

$

0.2

Other Liabilities

$

16.6

Interest Rate Cap

Other Assets

$

—

Other Assets

$

0.1

Effect Of Derivative Financial Instruments On The Statements Of Income And Comprehensive Income

The tables below present the effect of our derivative financial instruments in the condensed consolidated statements of income and comprehensive income for the three and nine months ended September 30, 2012 and 2011 (in millions):

Effect of Derivative Instruments

Three Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)				Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Discontinuation, Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Discontinuation, Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011			2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	—	Interest expense	$	—	$	0.1	Loss on discontinuation of hedging relationship	$	—	$	—

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012		2011
Interest Rate Cap	Other income/(loss)	$	—	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	—	$	(0.1	)

Nine Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)					Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011				2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	(2.7	)	Interest expense	$	—	$	9.9	Loss on discontinuation of hedging relationship	$	—	$	29.8

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012			2011
Interest Rate Cap	Other income/(loss)	$	(0.1	)	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	(0.7	)	$	(0.1	)

(1) The results include the interest rate swap gain (loss) prior to discontinuation in May 2011.

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Notes Payable (Tables)

9 Months Ended

Sep. 30, 2012

Notes Payable [Abstract]

Summary Of Indebtedness

The following is a summary of our indebtedness:

	Balance at
(in millions)	September 30, 2012		December 31, 2011
Commercial Banks
Unsecured line of credit and short-term borrowings	$	34.0	$	—
	34.0		—
Senior unsecured notes
5.93% Notes, due 2012	189.6		189.6
5.45% Notes, due 2013	199.8		199.7
5.08% Notes, due 2015	249.5		249.3
5.75% Notes, due 2017	246.3		246.2
4.70% Notes, due 2021	248.7		248.6
5.00% Notes, due 2023	247.4		247.3
	1,381.3		1,380.7
Total unsecured notes payable	1,415.3		1,380.7
Secured notes
0.96% – 6.00% Conventional Mortgage Notes, due 2013 – 2045	940.3		1,012.3
1.35% Tax-exempt Mortgage Note due 2028	38.1		39.1
	978.4		1,051.4
Total notes payable	$	2,393.7	$	2,432.1
Floating rate tax-exempt debt included in secured notes (1.35%)	$	38.1	$	39.1
Floating rate debt included in secured notes (0.96% - 1.69%)	206.4		206.4

Scheduled Repayments On Outstanding Debt

Scheduled repayments on outstanding debt, including our line of credit and scheduled principal amortizations, and the weighted average interest rate on maturing debt at September 30, 2012 were as follows:

(in millions)	Amount		Weighted Average Interest Rate
2012	$	190.3	5.9	%
2013 (1)	259.5		4.9
2014	11.0		6.0
2015	286.4		4.6
2016 (2)	2.6		—
2017 and thereafter	1,643.9		4.6
Total	$	2,393.7	4.8	%

(1) Includes $31.5 million of secured debt which was repaid subsequent to September 30, 2012 in conjunction with the acquisition of the remaining 75% interest in a fully-consolidated joint venture.

(2) Includes only scheduled principal amortizations.

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Share-Based Compensation (Summary Of Share Incentive Plans) (Details) (USD $)	9 Months Ended
	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding Options, Number At December 31, 2011	1,339,536
Granted, Options Outstanding	0
Exercised/Vested, Options Outstanding	(458,881)
Forfeited, Options Outstanding	(31,943)
Net activity, Options Outstanding	(490,824)
Outstanding Options, Number At September 30, 2012	848,712	[1]
Weighted Average Exercise/Grant Price, balance at December 31, 2011	$ 42.27
Granted, Weighted Average Exercise/Grant Price	$ 0.00
Exercised/Vested, Weighted Average Exercise/Grant Price	$ 40.74
Forfeited, Weighted Average Exercise/Grant Price	$ 60.56
Weighted Average Exercise/Grant Price, balance at September 30, 2012	$ 42.41	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Nonvested share awards outstanding at December 31, 2011, Share Awards Outstanding	818,754
Granted, Share Awards Outstanding	345,180
Exercised/Vested, Share Awards Outstanding	(274,119)
Forfeited, Share Awards Outstanding	(13,338)
Net activity, Nonvested Share Awards Outstanding	57,723
Nonvested share awards outstanding at September 30, 2012, Share Awards Outstanding	876,477
Nonvested share awards outstanding at December 31, 2011, Weighted Average Exercise/Grant Price	$ 46.88
Granted, Weighted Average Exercise/Grant Price	$ 63.50
Exercised/Vested, Weighted Average Exercise/Grant Price	$ 48.71
Forfeited, Weighted Average Exercise/Grant Price	$ 51.52
Nonvested share awards outstanding at September 30, 2012, Weighted Average Exercise/Grant Price	$ 52.77

[1] The aggregate intrinsic value of outstanding and exercisable options at September 30, 2012 were $18.9 million and $10.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $64.49 per share on September 30, 2012 and the strike price of the underlying award.

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Summary Of Income From Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]
Property revenues	$ 1,104	$ 4,710	$ 4,390	$ 13,788
Property expenses	540	2,421	2,284	7,028
Operating results	564	2,289	2,106	6,760
Depreciation and amortization	221	1,191	844	3,564
Income from discontinued operations	$ 343	$ 1,098	$ 1,262	$ 3,196

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Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Share-based Compensation [Abstract]

Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range And Intrinsic Value

The following table summarizes outstanding share options and exercisable options at September 30, 2012:

	Outstanding Options (1)			Exercisable Options (1)
Range of Exercise Prices	Number	Weighted Average Price		Number	Weighted Average Price
$30.06-$31.48	210,750	$	30.06	14,943	$	30.12
$41.16-$43.94	258,632	42.72		240,000	42.63
$45.53-$73.32	379,330	49.05		306,221	49.30
Total options	848,712	$	42.41	561,164	$	45.93

(1) The aggregate intrinsic value of outstanding and exercisable options at September 30, 2012 were $18.9 million and $10.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $64.49 per share on September 30, 2012 and the strike price of the underlying award.

Summary Of Share Incentive Plans

The following table summarizes activity under our share incentive plans for the nine months ended September 30, 2012:

	Options Outstanding		Weighted Average Exercise Price		Nonvested Share Awards Outstanding		Weighted Average Grant  Price
Total options and nonvested share awards outstanding at December 31, 2011	1,339,536		$	42.27	818,754		$	46.88
Granted	—		—		345,180		63.50
Exercised/vested	(458,881	)	40.74		(274,119	)	48.71
Forfeited	(31,943	)	60.56		(13,338	)	51.52
Net activity	(490,824	)			57,723
Total options and nonvested share awards outstanding at September 30, 2012	848,712		$	42.41	876,477		$	52.77

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Net Change In Operating Accounts (Tables)

9 Months Ended

Sep. 30, 2012

Increase (Decrease) in Operating Capital [Abstract]

Effect Of Changes In The Operating Accounts On Cash Flows From Operating Activities

The effect of changes in the operating accounts and other on cash flows from operating activities is as follows:

	Nine Months Ended
	September 30,
(in thousands)	2012			2011
Change in assets:
Other assets, net	$	(8,765	)	$	3,046
Change in liabilities:
Accounts payable and accrued expenses	11,759			11,343
Accrued real estate taxes	20,230			15,048
Other liabilities	(16,322		)	(13,131		)
Other	599			401
Change in operating accounts and other	$	7,501		$	16,707

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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2012

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Basis Of Presentation Summary Of Significant Accounting Policies And Recent Accounting Pronouncements

2. Summary of Significant Accounting Policies and Recent Accounting Pronouncements

Principles of Consolidation. Our condensed consolidated financial statements include our accounts and the accounts of other subsidiaries and joint ventures (including partnerships and limited liability companies) over which we have control. All intercompany transactions, balances, and profits have been eliminated in consolidation. Investments acquired or created are continuously evaluated based on the accounting guidance relating to variable interest entities (“VIEs”), which requires the consolidation of VIEs in which we are considered to be the primary beneficiary. If the investment is determined not to be a VIE, then the investment is evaluated for consolidation (primarily using a voting interest model) under the remaining consolidation guidance relating to real estate entities. If we are the general partner of a limited partnership, or manager of a limited liability company, we also consider the consolidation guidance relating to the rights of limited partners (non-managing members) to assess whether any rights held by the limited partners overcome the presumption of control by us.

Interim Financial Reporting. We have prepared these financial statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial statements and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, these statements do not include all information and footnote disclosures required for annual statements. While we believe the disclosures presented are adequate for interim reporting, these interim financial statements should be read in conjunction with the audited financial statements and notes included in our 2011 Annual Report on Form 10-K. In the opinion of management, all adjustments and eliminations, consisting of normal recurring adjustments, necessary for a fair representation of our financial statements for the interim period reported have been included. Operating results for the three and nine months ended September 30, 2012 are not necessarily indicative of the results which may be expected for the full year.

Allocations of Purchase Price. Upon acquisition of real estate, we allocate the fair value between tangible and intangible assets, which includes land, buildings (as-if-vacant), furniture and fixtures, the value of in-place leases, including above and below market leases, and acquired liabilities. In allocating these values we apply methods similar to those used by independent appraisers of income-producing property. Upon the acquisition of a controlling interest of an investment in an unconsolidated joint venture, such joint venture is consolidated and our initial equity investment is remeasured to fair value at the date the controlling interest is acquired; any differences between the carrying value and the fair value of the previously held equity investment is recognized in earnings at the time of obtaining control. Transaction costs associated with the acquisition of operating real estate assets are expensed. Depreciation is computed on a straight-line basis over the remaining useful lives of the related tangible assets. The value of in-place leases and above or below market leases is amortized over the estimated average remaining life of leases in place at the time of acquisition. The unamortized value of in-place leases at September 30, 2012 was approximately $3.3 million and is included in other assets, net, in our condensed consolidated balance sheet. The unamortized value of above or below market leases at September 30, 2012 was $0.2 million and is included in other liabilities in our condensed consolidated balance sheet. Estimates of fair value of acquired debt are based upon interest rates available for the issuance of debt with similar terms and remaining maturities.

Asset Impairment. Long-lived assets are reviewed for impairment annually or whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Impairment exists if estimated future undiscounted cash flows associated with long-lived assets are not sufficient to recover the carrying value of such assets. We consider projected future discounted and undiscounted cash flows, trends, strategic decisions regarding future development plans, and other factors in our assessment of whether impairment conditions exist. When impairment exists, the long-lived asset is adjusted to its fair value. While we believe our estimates of future cash flows are reasonable, different assumptions regarding a number of factors, including market rents, economic conditions, and occupancies, could significantly affect these estimates. In estimating fair value, management uses appraisals, management estimates, and discounted cash flow calculations which maximize inputs from a marketplace participant’s perspective. In addition, we evaluate our equity investments in joint ventures and if we believe there is an other than temporary decline in market value of our investment below our carrying value, we will record an impairment charge.

The value of our properties under development depends on market conditions, including estimates of the project start date as well as estimates of demand for multifamily communities. We have reviewed market trends and other marketplace information and have incorporated this information as well as our current outlook into the assumptions we use in our impairment analyses. Due to the judgment and assumptions applied in the impairment analyses, it is possible actual results could differ substantially from those estimated.

We believe the carrying value of our operating real estate assets, properties under development, and land is currently recoverable. However, if market conditions deteriorate or if changes in our development strategy significantly affect any key assumptions used in our fair value estimates, we may need to take material charges in future periods for impairments related to existing assets. Any such material non-cash charges could have an adverse effect on our consolidated financial position and results of operations.

Cost Capitalization. Real estate assets are carried at cost plus capitalized carrying charges. Carrying charges are primarily interest and real estate taxes which are capitalized as part of properties under development. Capitalized interest is generally based on the weighted average interest rate of our unsecured debt. Expenditures directly related to the development and improvement of real estate assets are capitalized at cost as land and buildings and improvements. Indirect development costs, including salaries and benefits and other related costs directly attributable to the development of properties, are also capitalized. We begin capitalizing development, construction, and carrying costs when the development of the future real estate asset is probable and activities necessary to get the underlying real estate asset ready for its intended use have been initiated. All construction and carrying costs are capitalized and reported in the balance sheet as properties under development until the apartment homes are substantially completed. Upon substantial completion of the apartment homes, the total capitalized development cost for the apartment homes and the associated land is transferred to buildings and improvements and land, respectively.

As discussed above, carrying charges are principally interest and real estate taxes capitalized as part of properties under development. Capitalized interest was approximately $3.1 million and $9.4 million for the three and nine months ended September 30, 2012, respectively, and approximately $2.5 million and $6.1 million for the three and nine months ended September 30, 2011, respectively. Capitalized real estate taxes were approximately $0.7 million and $2.1 million for the three and nine months ended September 30, 2012, respectively, and approximately $0.4 million and $1.0 million for the three and nine months ended September 30, 2011, respectively.

Where possible, we stage our construction to allow leasing and occupancy during the construction period, which we believe minimizes the duration of the lease-up period following completion of construction. Our accounting policy related to properties in the development and leasing phase is to expense all operating expenses associated with completed apartment homes. We capitalize renovation and improvement costs we believe extend the economic lives of depreciable property. Capital expenditures subsequent to initial construction are capitalized and depreciated over their estimated useful lives.

Depreciation and amortization is computed over the expected useful lives of depreciable property on a straight-line basis with lives generally as follows:

	Estimated Useful Life
Buildings and improvements	5-35 years
Furniture, fixtures, equipment, and other	3-20 years
Intangible assets (in-place leases and above and below market leases)	underlying lease term

Discontinued Operations. A property is classified as a discontinued operation when (i) the operations and cash flows of the property can be clearly distinguished and have been or will be eliminated from our ongoing operations; (ii) the property has either been disposed of or is classified as held for sale; and (iii) we will not have any significant continuing involvement in the operations of the property after the disposal transactions. Significant judgments are involved in determining whether a property meets the criteria for discontinued operations reporting and the period in which these criteria are met. A property is classified as held for sale when (i) management commits to a plan to sell and it is actively marketed; (ii) it is available for immediate sale in its present condition and the sale is expected to be completed within one year; and (iii) it is unlikely significant changes to the plan will be made or the plan will be withdrawn.

The results of operations for properties sold during the period or classified as held for sale at the end of the current period are classified as discontinued operations in the current and prior periods. The property-specific components of earnings classified as discontinued operations include separately identifiable property-specific revenues, expenses, depreciation, and interest expense, if any. The gain or loss resulting from the eventual disposal of the held for sale properties is also classified within discontinued operations. Real estate assets held for sale are measured at the lower of carrying amount or fair value less costs to sell and are presented separately in the accompanying consolidated balance sheets. Subsequent to classification of a property as held for sale, no further depreciation is recorded. Properties sold by our unconsolidated entities are not included in discontinued operations and related gains or losses are reported as a component of equity in income (loss) of joint ventures.

Gains on sale of real estate are recognized using the full accrual or partial sale methods, as applicable, in accordance with GAAP, provided various criteria relating to the terms of sale and any subsequent involvement with the real estate sold are satisfied.

Fair Value. For financial assets and liabilities recorded at fair value on a recurring or nonrecurring basis, fair value is the price we would receive to sell an asset, or pay to transfer a liability, in an orderly transaction with a market participant at the measurement date. In the absence of such data, fair value is estimated using internal information consistent with what market participants would use in a hypothetical transaction.

In determining fair value, observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions; preference is given to observable inputs. These two types of inputs create the following fair value hierarchy:

• Level 1:    Quoted prices for identical instruments in active markets.

• Level 2:    Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3: Significant inputs to the valuation model are unobservable.

Recurring Fair Value Disclosures. The following describes the valuation methodologies we use to measure different financial instruments at fair value on a recurring basis:

Deferred Compensation Plan Investments. The estimated fair values of investment securities classified as deferred compensation plan investments are based on quoted market prices utilizing public information for the same transactions. Our deferred compensation plan investments are recorded in other assets in our consolidated balance sheets.

Derivative Financial Instruments. The estimated fair values of derivative financial instruments are valued using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and volatility. The fair values of interest rate swaps and caps are estimated using the market standard methodology of netting the discounted fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of interest rates (forward curves) derived from observable market interest rate curves. In addition, credit valuation adjustments, which consider the impact of any credit enhancements to the contracts, are incorporated in the fair values to account for potential nonperformance risk, including our own nonperformance risk and the respective counterparty's nonperformance risk. The fair value of interest rate caps is determined using the market standard methodology of discounting the future expected cash receipts which would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observed market interest rate curves and volatilities.

Although we have determined the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default. However, we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and have determined the credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we have determined our derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Financial Instrument Fair Value Disclosures. In calculating the fair value of our notes payable, interest rates and spreads reflect current creditworthiness and market conditions available for the issuance of notes payable with similar terms and remaining maturities. These financial instruments utilize Level 2 inputs.

Non-recurring Fair Value Disclosures. Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances. These assets primarily include long-lived assets which are recorded at fair value when they are impaired. The fair value methodologies used to measure long-lived assets are described above at “Asset Impairment.” The inputs associated with the valuation of long-lived assets are generally included in Level 3 of the fair value hierarchy.

Recent Accounting Pronouncements. In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2011-04 (“ASU 2011-04”), “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS.” ASU 2011-04 requires entities to separately disclose the amounts and reasons for any transfers of assets and liabilities into and out of Level 1 and Level 2 of the fair value hierarchy. For fair value measurements using significant unobservable inputs (Level 3), entities are required to disclose quantitative information about the significant unobservable inputs used for all Level 3 measurements and a description of the valuation processes in determining fair value. In addition, ASU 2011-04 requires entities to provide a qualitative discussion about the sensitivity of recurring Level 3 measurements to changes in the unobservable inputs disclosed, including the interrelationship between inputs. Entities are also required to disclose information about when the current use of a non-financial asset measured at fair value differs from its highest and best use and the hierarchy classification for items whose fair value is not recorded in the balance sheet but is disclosed in the notes. We did not have any changes to our existing classification and measurement of fair value upon adoption on January 1, 2012. Refer to Note 14, "Fair Value Disclosures" and the fair value discussion above for additional disclosures resulting from the adoption of this standard.

In June 2011, the FASB issued Accounting Standards Update 2011-05 (“ASU 2011-05”), “Presentation of Comprehensive Income.” ASU 2011-05 requires all nonowner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Subsequent to the issuance of ASU 2011-05, the FASB issued Accounting Standards Update 2011-12 (“ASU 2011-12”), “Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in ASU 2011-05” which indefinitely defers the ASU 2011-05 requirement for an entity to present reclassification adjustments on the face of the financial statements from other comprehensive income to net income. We adopted ASU 2011-05 and ASU 2011-12 on January 1, 2012, and these adoptions did not have a material effect on our financial statements.

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Fair Value Disclosures (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Disclosures [Abstract]

Financial Assets And Liabilities Measured At Fair Value

The following table presents information about our financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2012 and December 31, 2011 under the fair value hierarchy discussed in Footnote 2, "Summary of Significant Accounting Policies and Recent Accounting Pronouncements."

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	September 30, 2012								December 31, 2011
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Deferred compensation plan investments (1)	$	38.9	$	—	$	—	$	38.9	$	41.0	$	—	$	—	$	41.0
Derivative financial instruments	—		—		—		—		—		0.1		—		0.1
Liabilities
Derivative financial instruments	$	—	$	0.2	$	—	$	0.2	$	—	$	16.6	$	—	$	16.6

(1) The balance at September 30, 2012 also reflects approximately $7.0 million of participant cash withdrawals from our deferred compensation plan investment during the nine months ended September 30, 2012.

Fair Value Of Notes Receivable And Notes Payable

The following table presents the carrying and estimated fair value of our notes payable at September 30, 2012 and December 31, 2011:

	September 30, 2012				December 31, 2011
(in millions)	Carrying Value		Estimated Fair  Value		Carrying Value		Estimated Fair  Value
Fixed rate notes payable	$	2,115.2	$	2,351.5	$	2,186.6	$	2,304.4
Floating rate notes payable (1)	278.5		269.8		245.5		233.6

(1) Includes balances outstanding under our unsecured line of credit.

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Operating Partnerships Operating Partnerships (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended
	Feb. 29, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2012 Oasis Martinique Llc [Member]
Number of perpetual preferred units redeemed	4.0
Dividend percentage of perpetual preferred units	7.00%
Perpetual preferred units Redemption Price Per Share	$ 25.00
Aggregated redemption value of perpetual preferred units	$ 100,000,000
Write off of original issuance costs of redeemed perpetual preferred units	$ 2,100,000	$ 0	$ 0	$ 2,075,000	$ 0
Units Converted To Shares During Period						0.3
Resultant number of common shares from exchange of operating interest units						0.2

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Derivative Instruments And Hedging Activities (Effect Of Derivative Financial Instruments On The Statements Of Income And Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Interest Rate Cap [Member] | Not-Designated [Member] | Other Income Loss [Member]
Amount of (Loss) Recognized in Statements of Income	$ 0		$ (0.1)		$ (0.1)		$ (0.1)
Interest Rate Swaps [Member] | Cash Flow Hedge [Member] | Interest Expense [Member]
Unrealized (Loss) Recognized in Other Comprehensive Income ("OCI") on Derivative (Effective Portion)	0	[1]	0	[1]	0	[1]	(2.7)	[1]
Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	0	[1]	0.1	[1]	0	[1]	9.9	[1]
Amount of Loss Recognized in Statements of Income (Ineffective Portion and Amount Excluded from Effectiveness Testing)	0	[1]	0	[1]	0	[1]	29.8	[1]
Interest Rate Swaps [Member] | Not-Designated [Member] | Other Income Loss [Member]
Amount of (Loss) Recognized in Statements of Income	$ 0		$ (0.1)		$ (0.7)		$ (0.1)

[1] The results include the interest rate swap gain (loss) prior to discontinuation in May 2011.

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Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets
Land	$ 929,289	$ 768,016
Buildings and improvements	5,359,707	4,751,654
Real estate assets, at cost, total	6,288,996	5,519,670
Accumulated depreciation	(1,542,530)	(1,432,799)
Net operating real estate assets	4,746,466	4,086,871
Properties under development, including land	280,948	299,870
Investments in joint ventures	46,566	44,844
Properties held for sale	6,373	11,131
Total real estate assets	5,080,353	4,442,716
Accounts receivable - affiliates	28,874	31,035
Other assets, net	96,401	88,089
Cash and cash equivalents	5,590	55,159
Restricted cash	6,742	5,076
Total assets	5,217,960	4,622,075
Liabilities
Unsecured notes payable	1,415,354	1,380,755
Secured notes payable	978,371	1,051,357
Accounts payable and accrued expenses	118,879	93,747
Accrued real estate taxes	43,757	21,883
Distributions payable	49,940	39,364
Other liabilities	78,551	109,276
Total liabilities	2,684,852	2,696,382
Commitments and contingencies
Perpetual preferred units	0	97,925
Equity
Common shares of beneficial interest; $0.01 par value per share; 175,000 and 100,000 shares authorized; 98,974 and 87,377 issued; 95,867 and 84,517 outstanding at September 30, 2012 and December 31, 2011, respectively	959	845
Additional paid-in capital	3,580,528	2,901,024
Distributions in excess of net income attributable to common shareholders	(692,235)	(690,466)
Treasury shares, at cost (11,782 and 12,509 common shares at September 30, 2012 and December 31, 2011, respectively)	(425,756)	(452,003)
Accumulated other comprehensive loss	(660)	(683)
Total common equity	2,462,836	1,758,717
Noncontrolling interests	70,272	69,051
Total equity	2,533,108	1,827,768
Total liabilities and equity	$ 5,217,960	$ 4,622,075

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Investments In Joint Ventures (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended		3 Months Ended					9 Months Ended
	Nov. 02, 2012 acre	Oct. 31, 2012	Dec. 31, 2011	Sep. 30, 2012 acre	Jun. 30, 2012 acre	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Number of joint ventures accounted for under equity method investments									5
Equity method investment ownership percentage			20.00%	25.00%			20.00%		25.00%
Maximum guaranteed amount of loans utilized for construction and development activities for joint ventures				$ 0					$ 0
Fees earned for property and asset management, construction, development, and other services to joint ventures				2,800,000				2,400,000	8,800,000	6,400,000
Acres of land acquired	2.4			12.0	4.7
Number of operating properties sold			2	1		3	4
Number of apartment homes in operating properties sold		473	788	253		1,033
Sales price of property sold by unconsolidated joint venture				54,400,000
Gain on sale of property by unconsolidated joint venture				2,900,000
Kansas City Missouri [Member]
Number of operating properties sold		1
Number of apartment homes in operating properties sold		596
Sales price of property sold by unconsolidated joint venture		$ 40,700,000
Raleigh North Carolina [Member]
Number of units in multifamily properties acquired						350
Orange County Florida [Member]
Acres of land acquired						15.0
Charlotte North Carolina [Member]
Acres of land acquired				3.7
Minimum [Member]
Equity method investment ownership percentage				15.00%					15.00%
Maximum [Member]
Equity method investment ownership percentage				50.00%					50.00%

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Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Cash flows from operating activities
Net income	$ 147,754		$ 9,897
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization, including discontinued operations	156,423		136,733
Gain on acquisition of controlling interest in joint ventures	(40,191)		0
Gain on sale of discontinued operations, net of tax	(32,541)		0
Gain on sale of properties, including land	0		(4,748)
Gain on sale of unconsolidated joint venture interests	0		(1,136)
Gain on sale of available-for-sale investment	0		(4,301)
Loss on discontinuation of hedging relationship	0		29,791
Distributions of income from joint ventures	3,064		3,673
Equity in (income) loss of joint ventures	(4,686)	[1]	166	[1]
Share-based compensation	9,950		9,254
Amortization of deferred financing costs	2,721		4,761
Net change in operating accounts and other	7,501		16,707
Net cash from operating activities	249,995		200,797
Cash flows from investing activities
Development and capital improvements	(202,730)		(155,077)
Acquisition of operating properties, including joint venture interests, net of cash acquired	(305,258)		0
Proceeds from sale of properties, including land and discontinued operations	54,125		19,095
Proceeds from sale of joint venture interests	0		19,310
Proceeds from sale of available-for-sale investment	0		4,510
Decrease in notes receivable - affiliates	0		3,279
Investments in joint ventures	(6,706)		(35,280)
Distributions of investments from joint ventures	9,230		2,453
Other	(7,104)		(4,464)
Net cash from investing activities	(458,443)		(146,174)
Cash flows from financing activities
Borrowings on unsecured line of credit	79,000		0
Repayments on unsecured line of credit	(45,000)		0
Repayment of notes payable	(345,592)		(626,432)
Proceeds from notes payable	0		495,705
Proceeds from issuance of common shares	693,375		69,863
Redemption of perpetual preferred units	(100,000)		0
Distributions to common shareholders, perpetual preferred units and noncontrolling interests	(138,641)		(112,932)
Payment of deferred financing costs	(757)		(8,776)
Common share options exercised	12,575		11,267
Net decrease in accounts receivable - affiliates	2,165		500
Other	1,754		1,706
Net cash from financing activities	158,879		(169,099)
Net decrease in cash and cash equivalents	(49,569)		(114,476)
Cash and cash equivalents, beginning of period	55,159		170,575
Cash and cash equivalents, end of period	5,590		56,099
Supplemental information
Cash paid for interest, net of interest capitalized	61,120		69,043
Cash paid for income taxes	1,548		1,903
Supplemental schedule of noncash investing and financing activities
Distributions declared but not paid	49,940		39,319
Value of shares issued under benefit plans, net of cancellations	21,226		18,912
Conversion of operating partnership units to common shares	447		592
Accrual associated with construction and capital expenditures	14,428		12,557
Amount payable for purchase of noncontrolling interest	10,241		0
Acquisition of operating properties, including joint venture interests:
Mortgage debt assumed	272,606		0
Other liabilities assumed	$ 6,640		$ 0

[1] Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Income Tax Expense (Benefit) [Abstract]
Annual dividends distribution percentage to shareholders to qualify as a REIT	90.00%
Income tax related to gain on sale of available-for-sale investments		$ 1.0
Significant temporary differences or tax credits associated with our taxable REIT subsidiaries	0
Uncertain tax positions or unrecognized tax benefits	$ 0

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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Unamortized value of acquired in-place leases	$ 3.3		$ 3.3
Unamortized value of above or below market leases	0.2		0.2
Capitalized interest	3.1	2.5	9.4	6.1
Capitalized real estate taxes	$ 0.7	$ 0.4	$ 2.1	$ 1.0

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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2012

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Principles Of Consolidation

Principles of Consolidation. Our condensed consolidated financial statements include our accounts and the accounts of other subsidiaries and joint ventures (including partnerships and limited liability companies) over which we have control. All intercompany transactions, balances, and profits have been eliminated in consolidation. Investments acquired or created are continuously evaluated based on the accounting guidance relating to variable interest entities (“VIEs”), which requires the consolidation of VIEs in which we are considered to be the primary beneficiary. If the investment is determined not to be a VIE, then the investment is evaluated for consolidation (primarily using a voting interest model) under the remaining consolidation guidance relating to real estate entities. If we are the general partner of a limited partnership, or manager of a limited liability company, we also consider the consolidation guidance relating to the rights of limited partners (non-managing members) to assess whether any rights held by the limited partners overcome the presumption of control by us.

Interim Financial Reporting

Interim Financial Reporting. We have prepared these financial statements in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial statements and the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, these statements do not include all information and footnote disclosures required for annual statements. While we believe the disclosures presented are adequate for interim reporting, these interim financial statements should be read in conjunction with the audited financial statements and notes included in our 2011 Annual Report on Form 10-K. In the opinion of management, all adjustments and eliminations, consisting of normal recurring adjustments, necessary for a fair representation of our financial statements for the interim period reported have been included. Operating results for the three and nine months ended September 30, 2012 are not necessarily indicative of the results which may be expected for the full year.

Allocations of Purchase Price

Allocations of Purchase Price. Upon acquisition of real estate, we allocate the fair value between tangible and intangible assets, which includes land, buildings (as-if-vacant), furniture and fixtures, the value of in-place leases, including above and below market leases, and acquired liabilities. In allocating these values we apply methods similar to those used by independent appraisers of income-producing property. Upon the acquisition of a controlling interest of an investment in an unconsolidated joint venture, such joint venture is consolidated and our initial equity investment is remeasured to fair value at the date the controlling interest is acquired; any differences between the carrying value and the fair value of the previously held equity investment is recognized in earnings at the time of obtaining control. Transaction costs associated with the acquisition of operating real estate assets are expensed. Depreciation is computed on a straight-line basis over the remaining useful lives of the related tangible assets. The value of in-place leases and above or below market leases is amortized over the estimated average remaining life of leases in place at the time of acquisition. The unamortized value of in-place leases at September 30, 2012 was approximately $3.3 million and is included in other assets, net, in our condensed consolidated balance sheet. The unamortized value of above or below market leases at September 30, 2012 was $0.2 million and is included in other liabilities in our condensed consolidated balance sheet. Estimates of fair value of acquired debt are based upon interest rates available for the issuance of debt with similar terms and remaining maturities.

Asset Impairment

Asset Impairment. Long-lived assets are reviewed for impairment annually or whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Impairment exists if estimated future undiscounted cash flows associated with long-lived assets are not sufficient to recover the carrying value of such assets. We consider projected future discounted and undiscounted cash flows, trends, strategic decisions regarding future development plans, and other factors in our assessment of whether impairment conditions exist. When impairment exists, the long-lived asset is adjusted to its fair value. While we believe our estimates of future cash flows are reasonable, different assumptions regarding a number of factors, including market rents, economic conditions, and occupancies, could significantly affect these estimates. In estimating fair value, management uses appraisals, management estimates, and discounted cash flow calculations which maximize inputs from a marketplace participant’s perspective. In addition, we evaluate our equity investments in joint ventures and if we believe there is an other than temporary decline in market value of our investment below our carrying value, we will record an impairment charge.

The value of our properties under development depends on market conditions, including estimates of the project start date as well as estimates of demand for multifamily communities. We have reviewed market trends and other marketplace information and have incorporated this information as well as our current outlook into the assumptions we use in our impairment analyses. Due to the judgment and assumptions applied in the impairment analyses, it is possible actual results could differ substantially from those estimated.

We believe the carrying value of our operating real estate assets, properties under development, and land is currently recoverable. However, if market conditions deteriorate or if changes in our development strategy significantly affect any key assumptions used in our fair value estimates, we may need to take material charges in future periods for impairments related to existing assets. Any such material non-cash charges could have an adverse effect on our consolidated financial position and results of operations.

Cost Capitalization

Cost Capitalization. Real estate assets are carried at cost plus capitalized carrying charges. Carrying charges are primarily interest and real estate taxes which are capitalized as part of properties under development. Capitalized interest is generally based on the weighted average interest rate of our unsecured debt. Expenditures directly related to the development and improvement of real estate assets are capitalized at cost as land and buildings and improvements. Indirect development costs, including salaries and benefits and other related costs directly attributable to the development of properties, are also capitalized. We begin capitalizing development, construction, and carrying costs when the development of the future real estate asset is probable and activities necessary to get the underlying real estate asset ready for its intended use have been initiated. All construction and carrying costs are capitalized and reported in the balance sheet as properties under development until the apartment homes are substantially completed. Upon substantial completion of the apartment homes, the total capitalized development cost for the apartment homes and the associated land is transferred to buildings and improvements and land, respectively.

As discussed above, carrying charges are principally interest and real estate taxes capitalized as part of properties under development. Capitalized interest was approximately $3.1 million and $9.4 million for the three and nine months ended September 30, 2012, respectively, and approximately $2.5 million and $6.1 million for the three and nine months ended September 30, 2011, respectively. Capitalized real estate taxes were approximately $0.7 million and $2.1 million for the three and nine months ended September 30, 2012, respectively, and approximately $0.4 million and $1.0 million for the three and nine months ended September 30, 2011, respectively.

Where possible, we stage our construction to allow leasing and occupancy during the construction period, which we believe minimizes the duration of the lease-up period following completion of construction. Our accounting policy related to properties in the development and leasing phase is to expense all operating expenses associated with completed apartment homes. We capitalize renovation and improvement costs we believe extend the economic lives of depreciable property. Capital expenditures subsequent to initial construction are capitalized and depreciated over their estimated useful lives.

Depreciation and amortization is computed over the expected useful lives of depreciable property on a straight-line basis with lives generally as follows:

	Estimated Useful Life
Buildings and improvements	5-35 years
Furniture, fixtures, equipment, and other	3-20 years
Intangible assets (in-place leases and above and below market leases)	underlying lease term

Discontinued Operations

Discontinued Operations. A property is classified as a discontinued operation when (i) the operations and cash flows of the property can be clearly distinguished and have been or will be eliminated from our ongoing operations; (ii) the property has either been disposed of or is classified as held for sale; and (iii) we will not have any significant continuing involvement in the operations of the property after the disposal transactions. Significant judgments are involved in determining whether a property meets the criteria for discontinued operations reporting and the period in which these criteria are met. A property is classified as held for sale when (i) management commits to a plan to sell and it is actively marketed; (ii) it is available for immediate sale in its present condition and the sale is expected to be completed within one year; and (iii) it is unlikely significant changes to the plan will be made or the plan will be withdrawn.

The results of operations for properties sold during the period or classified as held for sale at the end of the current period are classified as discontinued operations in the current and prior periods. The property-specific components of earnings classified as discontinued operations include separately identifiable property-specific revenues, expenses, depreciation, and interest expense, if any. The gain or loss resulting from the eventual disposal of the held for sale properties is also classified within discontinued operations. Real estate assets held for sale are measured at the lower of carrying amount or fair value less costs to sell and are presented separately in the accompanying consolidated balance sheets. Subsequent to classification of a property as held for sale, no further depreciation is recorded. Properties sold by our unconsolidated entities are not included in discontinued operations and related gains or losses are reported as a component of equity in income (loss) of joint ventures.

Gains on sale of real estate are recognized using the full accrual or partial sale methods, as applicable, in accordance with GAAP, provided various criteria relating to the terms of sale and any subsequent involvement with the real estate sold are satisfied.

Fair Value

Fair Value. For financial assets and liabilities recorded at fair value on a recurring or nonrecurring basis, fair value is the price we would receive to sell an asset, or pay to transfer a liability, in an orderly transaction with a market participant at the measurement date. In the absence of such data, fair value is estimated using internal information consistent with what market participants would use in a hypothetical transaction.

In determining fair value, observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect our market assumptions; preference is given to observable inputs. These two types of inputs create the following fair value hierarchy:

• Level 1:    Quoted prices for identical instruments in active markets.

• Level 2:    Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3: Significant inputs to the valuation model are unobservable.

Recurring Fair Value Disclosures. The following describes the valuation methodologies we use to measure different financial instruments at fair value on a recurring basis:

Deferred Compensation Plan Investments. The estimated fair values of investment securities classified as deferred compensation plan investments are based on quoted market prices utilizing public information for the same transactions. Our deferred compensation plan investments are recorded in other assets in our consolidated balance sheets.

Derivative Financial Instruments. The estimated fair values of derivative financial instruments are valued using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and volatility. The fair values of interest rate swaps and caps are estimated using the market standard methodology of netting the discounted fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of interest rates (forward curves) derived from observable market interest rate curves. In addition, credit valuation adjustments, which consider the impact of any credit enhancements to the contracts, are incorporated in the fair values to account for potential nonperformance risk, including our own nonperformance risk and the respective counterparty's nonperformance risk. The fair value of interest rate caps is determined using the market standard methodology of discounting the future expected cash receipts which would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observed market interest rate curves and volatilities.

Although we have determined the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default. However, we have assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and have determined the credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we have determined our derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Financial Instrument Fair Value Disclosures. In calculating the fair value of our notes payable, interest rates and spreads reflect current creditworthiness and market conditions available for the issuance of notes payable with similar terms and remaining maturities. These financial instruments utilize Level 2 inputs.

Non-recurring Fair Value Disclosures. Certain assets are measured at fair value on a non-recurring basis. These assets are not measured at fair value on an ongoing basis, but are subject to fair value adjustments in certain circumstances. These assets primarily include long-lived assets which are recorded at fair value when they are impaired. The fair value methodologies used to measure long-lived assets are described above at “Asset Impairment.” The inputs associated with the valuation of long-lived assets are generally included in Level 3 of the fair value hierarchy.

Recent Accounting Pronouncements

Recent Accounting Pronouncements. In May 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2011-04 (“ASU 2011-04”), “Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS.” ASU 2011-04 requires entities to separately disclose the amounts and reasons for any transfers of assets and liabilities into and out of Level 1 and Level 2 of the fair value hierarchy. For fair value measurements using significant unobservable inputs (Level 3), entities are required to disclose quantitative information about the significant unobservable inputs used for all Level 3 measurements and a description of the valuation processes in determining fair value. In addition, ASU 2011-04 requires entities to provide a qualitative discussion about the sensitivity of recurring Level 3 measurements to changes in the unobservable inputs disclosed, including the interrelationship between inputs. Entities are also required to disclose information about when the current use of a non-financial asset measured at fair value differs from its highest and best use and the hierarchy classification for items whose fair value is not recorded in the balance sheet but is disclosed in the notes. We did not have any changes to our existing classification and measurement of fair value upon adoption on January 1, 2012. Refer to Note 14, "Fair Value Disclosures" and the fair value discussion above for additional disclosures resulting from the adoption of this standard.

In June 2011, the FASB issued Accounting Standards Update 2011-05 (“ASU 2011-05”), “Presentation of Comprehensive Income.” ASU 2011-05 requires all nonowner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Subsequent to the issuance of ASU 2011-05, the FASB issued Accounting Standards Update 2011-12 (“ASU 2011-12”), “Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in ASU 2011-05” which indefinitely defers the ASU 2011-05 requirement for an entity to present reclassification adjustments on the face of the financial statements from other comprehensive income to net income. We adopted ASU 2011-05 and ASU 2011-12 on January 1, 2012, and these adoptions did not have a material effect on our financial statements.

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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements (Expected Useful Lives Of Depreciable Property) (Details)	9 Months Ended
	Sep. 30, 2012
Intangible assets (in-place leases and above and below market leases)	underlying lease term
Minimum [Member] | Buildings And Improvements [Member]
Estimated Useful Life (in years)	5 years
Minimum [Member] | Furniture, Fixtures, Equipment, And Other [Member]
Estimated Useful Life (in years)	5 years
Maximum [Member] | Buildings And Improvements [Member]
Estimated Useful Life (in years)	35 years
Maximum [Member] | Furniture, Fixtures, Equipment, And Other [Member]
Estimated Useful Life (in years)	20 years

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Per Share Data (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Calculation Of Basic And Diluted Earnings Per Share

The following table presents information necessary to calculate basic and diluted earnings per share for the periods indicated:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
(in thousands, except per share amounts)	2012			2011			2012			2011
Earnings per share calculation – basic
Income (loss) from continuing operations attributable to common shareholders	$	30,360		$	10,751		$	108,091		$	(638	)
Amount allocated to participating securities	(288		)	(154		)	(1,387		)	(118		)
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	30,072			10,597			106,704			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,686		$	139,837		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.29		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	0.01			0.02			0.40			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.36		$	0.16		$	1.69		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Earnings per share calculation – diluted
Income (loss) from continuing operations attributable to common shareholders, net of amount allocated to participating securities	$	30,072		$	10,597		$	106,704		$	(756	)
Income allocated to common units from continuing operations	—			8			1,167			—
Income (loss) from continuing operations attributable to common shareholders, as adjusted	30,072			10,605			107,871			(756		)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343			1,089			33,133			3,167
Net income attributable to common shareholders, as adjusted	$	30,415		$	11,694		$	141,004		$	2,411
Income (loss) from continuing operations attributable to common shareholders, as adjusted – per share	$	0.35		$	0.14		$	1.27		$	(0.01	)
Income from discontinued operations, including gain on sale, attributable to common shareholders – per share	—			0.02			0.39			0.04
Net income attributable to common shareholders, as adjusted – per share	$	0.35		$	0.16		$	1.66		$	0.03
Weighted average number of common shares outstanding – basic	85,631			73,242			82,923			72,502
Incremental shares issuable from assumed conversion of:
Common share options and share awards granted	662			793			655			—
Common units	—			239			1,116			—
Weighted average number of common shares outstanding – diluted	86,293			74,274			84,694			72,502

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Description Of Business

9 Months Ended

Sep. 30, 2012

Accounting Policies [Abstract]

Description Of Business

1. Description of Business

Business. Formed on May 25, 1993, Camden Property Trust, a Texas real estate investment trust (“REIT”), is primarily engaged in the ownership, management, development, acquisition, and construction of multifamily apartment communities. Our multifamily apartment communities are referred to as “communities,” “multifamily communities,” “properties,” or “multifamily properties” in the following discussion. As of September 30, 2012, we owned interests in, operated, or were developing 209 multifamily properties comprising 70,871 apartment homes across the United States. Of the 209 properties, six properties were under development, and when completed will consist of a total of 2,040 apartment homes. In addition, we own land parcels we may develop into multifamily apartment communities in the future.

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Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Common shares, par value, per share	$ 0.01	$ 0.01
Common shares, authorized	175,000	100,000
Common shares, issued	98,974	87,377
Common shares, outstanding	95,867	84,517
Treasury shares, at cost	11,782	12,509

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Net Change In Operating Accounts

9 Months Ended

Sep. 30, 2012

Increase (Decrease) in Operating Capital [Abstract]

Net Change In Operating Accounts

11. Net Change in Operating Accounts

The effect of changes in the operating accounts and other on cash flows from operating activities is as follows:

	Nine Months Ended
	September 30,
(in thousands)	2012			2011
Change in assets:
Other assets, net	$	(8,765	)	$	3,046
Change in liabilities:
Accounts payable and accrued expenses	11,759			11,343
Accrued real estate taxes	20,230			15,048
Other liabilities	(16,322		)	(13,131		)
Other	599			401
Change in operating accounts and other	$	7,501		$	16,707

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Document And Entity Information	9 Months Ended
	Sep. 30, 2012	Oct. 26, 2012
Document And Entity Information [Abstract]
Entity Registrant Name	CAMDEN PROPERTY TRUST
Entity Central Index Key	0000906345
Document Type	10-Q
Document Period End Date	Sep. 30, 2012
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		84,115,681

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Commitments And Contingencies

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments And Contingencies

12. Commitments and Contingencies

Construction Contracts. As of September 30, 2012, we had approximately $178.0 million of additional expected costs to complete our construction projects currently under development. We expect to fund these amounts through a combination of cash flows generated from operations, draws on our unsecured credit facility, proceeds from property dispositions and secured mortgages, equity issued from our ATM programs, and the use of debt and equity offerings under our automatic shelf registration statement.

Litigation. One of our wholly-owned subsidiaries previously acted as a general contractor for the construction of two apartment projects in Florida which were subsequently sold and converted to condominium units by unrelated third-parties. One condominium association of a project has asserted claims against our subsidiary alleging, in general, defective construction as a result of alleged negligence and a failure to comply with building codes; the other condominium association has asserted claims against our subsidiary alleging a failure to comply with building codes.

The two associations have filed suit against our subsidiary and other unrelated third parties in Florida claiming damages, in unspecified amounts, for the costs of repair arising out of the alleged defective construction as well as the recovery of incidental and consequential damages resulting from such alleged negligence. These lawsuits are in an early stage of litigation and discovery is continuing. While we have denied liability to the associations, it is not possible to determine the potential outcome nor is it possible to estimate a range of the amount of loss, if any, that would be associated with any potential adverse decision as these matters are in an early stage of litigation.

We are also subject to various legal proceedings and claims which arise in the ordinary course of business. Matters which arise out of allegations of bodily injury, property damage, and employment practices are generally covered by insurance. While the resolution of these legal proceedings and claims cannot be predicted with certainty, management believes the final outcome of such matters will not have a material adverse effect on our condensed consolidated financial statements.

Other Contingencies. In the ordinary course of our business, we issue letters of intent indicating a willingness to negotiate for acquisitions, dispositions, or joint ventures and also enter into arrangements contemplating various transactions. Such letters of intent and other arrangements are non-binding as to either party unless and until a definitive contract is entered into by the parties. Even if definitive contracts relating to the purchase or sale of real property are entered into, these contracts generally provide the purchaser with time to evaluate the property and conduct due diligence, during which periods the purchaser will have the ability to terminate the contracts without penalty or forfeiture of any deposit or earnest money. There can be no assurance definitive contracts will be entered into with respect to any matter covered by letters of intent or we will consummate any transaction contemplated by any definitive contract. Furthermore, due diligence periods for real property are frequently extended as needed. An acquisition or sale of real property becomes probable at the time the due diligence period expires and the definitive contract has not been terminated. We are then at risk under a real property acquisition contract, but generally only to the extent of any earnest money deposits associated with the contract, and are obligated to sell under a real property sales contract.

Lease Commitments. At September 30, 2012, we had long-term leases covering certain land, office facilities, and equipment. Rental expense totaled approximately $0.7 million for both of the three months ended September 30, 2012 and 2011, and approximately $1.9 million and $2.1 million for the nine months ended September 30, 2012 and 2011, respectively. Minimum annual rental commitments for the remainder of 2012 are $0.6 million, and for the years ending December 31, 2013 through 2016 are approximately $2.5 million, $2.4 million, $1.5 million, and $0.4 million, respectively, and approximately $0.9 million in the aggregate thereafter.

Investments in Joint Ventures. We have entered into, and may continue in the future to enter into, joint ventures or partnerships (including limited liability companies) through which we own an indirect economic interest in less than 100% of the community or land owned directly by the joint venture or partnership. Our decision whether to hold the entire interest in an apartment community or land ourselves, or to have an indirect interest in the community or land through a joint venture or partnership, is based on a variety of factors and considerations, including: (i) our projection, in some circumstances, that we will achieve higher returns on our invested capital or reduce our risk if a joint venture or partnership vehicle is used; (ii) our desire to diversify our portfolio of communities by market; (iii) our desire at times to preserve our capital resources to maintain liquidity or balance sheet strength; and (iv) the economic and tax terms required by a seller of land or of a community, who may prefer or who may require less payment if the land or community is contributed to a joint venture or partnership. Investments in joint ventures or partnerships are not limited to a specified percentage of our assets. Each joint venture or partnership agreement is individually negotiated, and our ability to operate and/or dispose of a community in our sole discretion is limited to varying degrees in our existing joint venture agreements and may be limited to varying degrees depending on the terms of future joint venture agreements.

We have two discretionary investment funds to make direct and indirect investments in multifamily real estate throughout the United States, primarily through acquisitions of operating properties and certain land parcels which will be acquired by or contributed to the funds for development. As of December 31, 2011, one of our funds was closed for future investments as the end of the investment period was reached. During the first quarter of 2012, the investment period of our remaining fund was extended from April 8, 2012 to earlier of (i) December 31, 2012, or (ii) such time as 85% of the fund's committed capital is invested. We can use the extended investment period exclusively for acquisitions of designated development properties.

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Condensed Consolidated Statements Of Income And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Property revenues
Rental revenues	$ 166,179		$ 140,332		$ 477,501		$ 412,794
Other property revenues	28,025		23,892		79,322		68,605
Total property revenues	194,204		164,224		556,823		481,399
Property expenses
Property operating and maintenance	54,008		48,731		153,491		138,974
Real estate taxes	19,096		16,892		56,586		51,596
Total property expenses	73,104		65,623		210,077		190,570
Non-property income
Fee and asset management	3,041		2,646		9,572		6,955
Interest and other income (loss)	3		(108)		(750)		4,749
Income (loss) on deferred compensation plans	(1,781)		(6,096)		3,820		1,233
Total non-property income (loss)	1,263		(3,558)		12,642		12,937
Other expenses
Property management	5,509		5,050		15,644		15,478
Fee and asset management	1,864		1,330		5,051		4,220
General and administrative	9,303		8,572		27,712		26,392
Interest	25,865		27,354		78,795		85,472
Depreciation and amortization	52,588		43,367		155,579		133,547
Amortization of deferred financing costs	909		1,344		2,721		4,761
Expense (benefit) on deferred compensation plans	(1,781)		(6,096)		3,820		1,233
Total other expenses	94,257		80,921		289,322		271,103
Gain on acquisition of controlling interest in joint ventures	0		0		40,191		0
Gain on sale of properties, including land	0		0		0		4,748
Gain on sale of unconsolidated joint venture interests	0		0		0		1,136
Loss on discontinuation of hedging relationship	0		0		0		(29,791)
Equity in income (loss) of joint ventures	3,688	[1]	(556)	[1]	4,686	[1]	(166)	[1]
Income from continuing operations before income taxes	31,794		13,566		114,943		8,590
Income tax expense - current	(334)		(313)		(992)		(1,889)
Income from continuing operations	31,460		13,253		113,951		6,701
Income from discontinued operations	343		1,098		1,262		3,196
Gain on sale of discontinued operations, net of tax	0		0		32,541		0
Net income	31,803		14,351		147,754		9,897
Less income allocated to noncontrolling interests from continuing operations	(1,100)		(752)		(3,009)		(2,089)
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	0		(9)		(670)		(29)
Less income allocated to perpetual preferred units	0		(1,750)		(776)		(5,250)
Less write off of original issuance costs of redeemed perpetual preferred units	0		0		(2,075)		0
Net income attributable to common shareholders	30,703		11,840		141,224		2,529
Earnings per share - basic
Income (loss) from continuing operations attributable to common shareholders	$ 0.35		$ 0.14		$ 1.29		$ (0.01)
Income from discontinued operations, including gain on sale, attributable to common shareholders	$ 0.01		$ 0.02		$ 0.40		$ 0.04
Net income attributable to common shareholders, as adjusted - per share	$ 0.36		$ 0.16		$ 1.69		$ 0.03
Earnings per share - diluted
Income (loss) from continuing operations attributable to common shareholders	$ 0.35		$ 0.14		$ 1.27		$ (0.01)
Income from discontinued operations, including gain on sale, attributable to common shareholders	$ 0.00		$ 0.02		$ 0.39		$ 0.04
Net income attributable to common shareholders, as adjusted - per share	$ 0.35		$ 0.16		$ 1.66		$ 0.03
Distributions declared per common share	$ 0.56		$ 0.49		$ 1.68		$ 1.47
Weighted average number of common shares outstanding - basic	85,631		73,242		82,923		72,502
Weighted average number of common shares outstanding - diluted	86,293		74,274		84,694		72,502
Net income attributable to common shareholders
Income from continuing operations	31,460		13,253		113,951		6,701
Less income allocated to noncontrolling interests from continuing operations	(1,100)		(752)		(3,009)		(2,089)
Less income allocated to perpetual preferred units	0		(1,750)		(776)		(5,250)
Less write off of original issuance costs of redeemed perpetual preferred units	0		0		(2,075)		0
Income (loss) from continuing operations attributable to common shareholders	30,360		10,751		108,091		(638)
Income from discontinued operations, including gain on sale	343		1,098		33,803		3,196
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	0		(9)		(670)		(29)
Income from discontinued operations, including gain on sale, attributable to common shareholders	343		1,089		33,133		3,167
Net income attributable to common shareholders	30,703		11,840		141,224		2,529
Condensed Consolidated Statements of Comprehensive Income:
Net income	31,803		14,351		147,754		9,897
Other comprehensive income
Unrealized loss on cash flow hedging activities	0		0		0		(2,692)
Reclassification of net losses on cash flow hedging activities	0		108		0		39,660
Reclassification of gain on available-for-sale investment to earnings, net of tax	0		0		0		(3,309)
Reclassification of prior service cost on post retirement obligations	7		0		23		0
Comprehensive income	31,810		14,459		147,777		43,556
Less income allocated to noncontrolling interests from continuing operations	(1,100)		(752)		(3,009)		(2,089)
Less income, including gain on sale, allocated to noncontrolling interests from discontinued operations	0		(9)		(670)		(29)
Less income allocated to perpetual preferred units	0		(1,750)		(776)		(5,250)
Less write off of original issuance costs of redeemed perpetual preferred units	0		0		(2,075)		0
Comprehensive income attributable to common shareholders	$ 30,710		$ 11,948		$ 141,247		$ 36,188

[1] Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale

9 Months Ended

Sep. 30, 2012

Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]

Property Acquisitions Dispositions Discontinued Operations And Assets Held For Sale Disclosure [Text Block]

6. Property Acquisitions, Discontinued Operations, and Assets Held for Sale

Acquisitions. In May 2012, we acquired approximately 4.7 acres of land located in Dallas, Texas for approximately $13.4 million. In August 2012, we acquired approximately 12.0 acres of land located in Austin, Texas for approximately $3.3 million. In November 2012, we acquired approximately 2.4 acres of land located in Plantation, Florida for approximately $9.0 million. We intend to utilize these land holdings for development of multifamily apartment communities.

In June 2012, we acquired Camden Belmont comprised of 477 units located in Dallas, Texas for approximately $76.0 million. In July 2012, we acquired Camden Creekstone comprised of 223 units located in Atlanta, Georgia for approximately $25.3 million. In September 2012, we acquired Camden Landmark comprised of 469 units located in Ontario, California for approximately $90.5 million and we acquired Camden Henderson comprised of 106 units located in Dallas, Texas for approximately $19.2 million.

As of December 31, 2011, we held a 20% ownership interest in twelve unconsolidated joint ventures that owned twelve apartment communities, containing 4,034 apartment homes located in Dallas, Houston, Las Vegas, Phoenix, and Southern California. In January 2012, we acquired the remaining 80% ownership interests in these joint ventures for approximately $99.5 million and assumed approximately $272.6 million in mortgage debt associated with these joint ventures, which was subsequently repaid in January 2012. As a result of acquiring a controlling interest in the former unconsolidated joint ventures, our previously held equity interest was remeasured at fair value, resulting in a gain of approximately $40.2 million. The equity was remeasured utilizing the consideration paid for the acquired 80% ownership interest.

The following table summarizes the fair values of the assets acquired and liabilities assumed for the acquisitions of the twelve joint ventures and four operating properties described above as of the respective acquisition/consolidation dates (in millions):

Assets acquired:
	Buildings and improvements	$	460.4
	Land	134.9
	Cash	3.4
	Restricted cash	0.7
	Intangible and other assets	14.5
Total assets acquired		$	613.9
Liabilities assumed:
	Mortgage debt (1)	$	272.6
	Other liabilities	6.6
Total liabilities assumed		$	279.2
	Net assets acquired	$	334.7

(1) Mortgage debt assumed was subsequently repaid in January 2012 at face value.

The related assets, liabilities, and results of operations for these acquisitions are included in the consolidated financial statements from the respective dates of acquisition. There was no contingent consideration associated with these acquisitions.

The twelve former joint ventures and the four operating properties acquired as discussed above contributed revenues of approximately $35.3 million and property expenses of approximately $14.3 million, from their respective acquisition/consolidation dates through September 30, 2012.

The following unaudited pro forma summary presents consolidated information assuming the acquisitions/consolidation of the twelve former joint ventures and four operating properties described above had occurred on January 1, 2011. The information below for the three and nine months ended September 30, 2012, contains pro forma results for the respective portions of the periods prior to the respective acquisition/consolidation dates and actual results from the respective dates of acquisition/consolidation through the end of the periods.

	Pro Forma Three Months Ended September 30,				Pro Forma Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
	(unaudited)
Property revenues	$	196,396	$	179,665	$	571,048	$	526,824
Property expenses	74,060		72,541		216,160		211,034
	$	122,336	$	107,124	$	354,888	$	315,790

We owned one apartment community, containing 253 apartment homes, located in Houston, Texas, in a fully-consolidated joint venture, Camden Travis Street, in which we held a 25% ownership interest. On September 30, 2012, we acquired the remaining 75% noncontrolling ownership interest in this joint venture for approximately $10.2 million. The acquisition of the remaining ownership interest was recorded as an equity transaction and, as a result, the carrying balance of the noncontrolling interest was eliminated and the remaining difference between the purchase price and carrying balance was recorded as a reduction in additional-paid-in-capital. See Note 15, "Noncontrolling interests" for the effect of changes in ownership interests of this joint venture on the equity attributable to common shareholders.

Discontinued Operations and Assets Held for Sale. For the three and nine months ended September 30, 2012, income from discontinued operations included the results of operations of three operating properties, Camden Vista Valley, Camden Landings, and Camden Creek, containing 1,033 apartment homes, sold in the first quarter of 2012. Income from discontinued operations for the three and nine months ended September 30, 2012 and 2011 also included the results of operations of two operating properties, Camden Laurel Ridge and Camden Steeplechase, containing 473 apartment homes, classified as held for sale as of September 30, 2012. These properties were sold in October 2012 for approximately $26.6 million.

For the three and nine months ended September 30, 2011, income from discontinued operations also included the results of operations of two operating properties, Camden Valley Creek and Camden Valley Ridge, containing 788 apartment homes, sold in December 2011.

The following is a summary of income from discontinued operations for the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
Property revenues	$	1,104	$	4,710	$	4,390	$	13,788
Property expenses	540		2,421		2,284		7,028
	564		2,289		2,106		6,760
Depreciation and amortization	221		1,191		844		3,564
Income from discontinued operations	$	343	$	1,098	$	1,262	$	3,196

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Operating Partnerships

9 Months Ended

Sep. 30, 2012

Operating Partnerships [Abstract]

Operating Partnerships [Text Block]

5. Operating Partnerships

As of December 31, 2011, Camden Operating, L.P. (“Camden Operating” or the “operating partnership”) had 4.0 million7.0% Series B Cumulative Redeemable Perpetual Preferred Units outstanding. Distributions on the preferred units were payable quarterly in arrears. In February 2012, we redeemed all of these outstanding units at their redemption price of $25.00 per unit, or an aggregate of $100.0 million, plus accrued and unpaid distributions. In connection with this redemption, the unamortized issuance costs relating to these units of approximately $2.1 million were expensed in the first quarter of 2012.

As of December 31, 2011, we held the controlling managing member interest in Oasis Martinique, LLC, which owns one property in Orange County, California and is included in our consolidated financial statements. During the first quarter of 2012, the remaining non-managing member interests, comprising approximately 0.3 million units, were converted to approximately 0.2 million of our common shares, resulting in this entity being wholly-owned by us.

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Summary Of Significant Accounting Policies And Recent Accounting Pronouncements (Tables)

9 Months Ended

Sep. 30, 2012

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Expected Useful Lives Of Depreciable Property

Depreciation and amortization is computed over the expected useful lives of depreciable property on a straight-line basis with lives generally as follows:

	Estimated Useful Life
Buildings and improvements	5-35 years
Furniture, fixtures, equipment, and other	3-20 years
Intangible assets (in-place leases and above and below market leases)	underlying lease term

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Income Taxes

9 Months Ended

Sep. 30, 2012

Income Tax Expense (Benefit) [Abstract]

Income Taxes

13. Income Taxes

We have maintained and intend to maintain our election as a REIT under the Internal Revenue Code of 1986, as amended. In order for us to continue to qualify as a REIT we must meet a number of organizational and operational requirements, including a requirement to distribute annual dividends to our shareholders equal to a minimum of 90% of our REIT taxable income, computed without regard to the dividends paid deduction and our net capital gains. As a REIT, we generally will not be subject to federal income tax on our taxable income at the corporate level to the extent such income is distributed to our shareholders annually. If our taxable income exceeds our dividends in a tax year, REIT tax rules allow us to designate dividends from the subsequent tax year in order to avoid current taxation on undistributed income. If we fail to qualify as a REIT in any taxable year, we will be subject to federal and state income taxes at regular corporate rates, including any applicable alternative minimum tax. In addition, we may not be able to requalify as a REIT for the four subsequent taxable years. Historically, we have incurred only state and local income, franchise, and excise taxes. Taxable income from non-REIT activities managed through taxable REIT subsidiaries is subject to applicable federal, state, and local income and margins taxes. Our operating partnerships are flow-through entities and are not subject to federal income taxes at the entity level.

We have provided for income, franchise, and margin taxes in the condensed consolidated statements of income and comprehensive income for the three and nine months ended September 30, 2012 and 2011. Income taxes for the nine months ended September 30, 2011 also included approximately $1.0 million associated with the gain recognized on the sale of our available-for-sale investment.

Other income tax expense is related to entity level taxes on certain ventures, state taxes, and federal taxes on certain of our taxable REIT subsidiaries. We have no significant temporary differences or tax credits associated with our taxable REIT subsidiaries.

We believe we have no uncertain tax positions or unrecognized tax benefits requiring disclosure as of and for the nine months ended September 30, 2012.

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Derivative Instruments And Hedging Activities

9 Months Ended

Sep. 30, 2012

Derivative Instruments and Hedges, Assets [Abstract]

Derivative Instruments And Hedging Activities

9. Derivative Financial Instruments and Hedging Activities

Risk Management Objective of Using Derivatives. We are exposed to certain risks arising from both our business operations and economic conditions. We principally manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of our debt funding and the use of derivative financial instruments. Specifically, we may enter into derivative financial instruments to manage exposures arising from business activities resulting in differences in the amount, timing, and duration of our known or expected cash payments principally related to our borrowings.

Cash Flow Hedges of Interest Rate Risk. Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish these objectives, we primarily use interest rate swaps and caps as part of our interest rate risk management strategy. Interest rate swaps involve the receipt of variable rate amounts from a counterparty in exchange for us making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Interest rate caps involve the receipt of variable rate amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an upfront premium.

Designated Hedges. The effective portion of changes in the fair value of derivatives designated and qualifying as cash flow hedges is recorded in accumulated other comprehensive income or loss and is subsequently reclassified into earnings in the period the hedged forecasted transaction affects earnings. During the nine months ended September 30, 2011, such derivatives were used to hedge the variable cash flows associated with existing variable rate debt. The ineffective portion of the change in fair value of the derivatives, if any, is recognized directly in earnings. No portion of designated hedges was ineffective during the three and nine months ended September 30, 2011. We did not have any designated hedges during the nine months ended September 30, 2012.

Non-designated Hedges. Derivatives are not entered into for speculative purposes and are used to manage our exposure to interest rate movements and other identified risks. Our non-designated hedges are either specifically non-designated by management or do not meet strict hedge accounting requirements. Changes in the fair value of derivatives not designated in hedging relationships are recorded directly in earnings in interest and other income.

As of September 30, 2012, we had the following outstanding interest rate derivatives which were not designated as hedges of interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional Amount
Interest Rate Cap	1	$	175.0	million
Interest Rate Swap (1)	1	$	500.0	million

(1) In October 2012, the interest rate swap matured and was settled.

The table below presents the fair value of our derivative financial instruments as well as their classification in the condensed consolidated balance sheets at September 30, 2012 and December 31, 2011 (in millions):

Fair Values of Derivative Instruments

Asset Derivatives

Liability Derivatives

September 30, 2012

December 31, 2011

September 30, 2012

December 31, 2011

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Balance Sheet Location

Fair Value

Derivatives not designated as hedging instruments

Interest Rate Swap

Other Liabilities

$

0.2

Other Liabilities

$

16.6

Interest Rate Cap

Other Assets

$

—

Other Assets

$

0.1

The tables below present the effect of our derivative financial instruments in the condensed consolidated statements of income and comprehensive income for the three and nine months ended September 30, 2012 and 2011 (in millions):

Effect of Derivative Instruments

Three Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)				Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Discontinuation, Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Discontinuation, Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011			2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	—	Interest expense	$	—	$	0.1	Loss on discontinuation of hedging relationship	$	—	$	—

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012		2011
Interest Rate Cap	Other income/(loss)	$	—	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	—	$	(0.1	)

Nine Months Ended
September 30,
	Unrealized (Loss) Recognized in Other Comprehensive  Income (“OCI”) on  Derivative (Effective Portion)					Location of Loss Reclassified from Accumulated OCI into Income(Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)				Location of Loss Recognized in  Statements of Income (Ineffective  Portion and Amount  Excluded from Effectiveness Testing)	Amount of Loss Recognized in Statements of Income (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Derivatives in Cash Flow Hedging Relationships	2012		2011				2012		2011			2012		2011
Interest Rate Swaps (1)	$	—	$	(2.7	)	Interest expense	$	—	$	9.9	Loss on discontinuation of hedging relationship	$	—	$	29.8

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Statements of Income	Amount of (Loss) Recognized in Statements of Income
		2012			2011
Interest Rate Cap	Other income/(loss)	$	(0.1	)	$	(0.1	)
Interest Rate Swap	Other income/(loss)	$	(0.7	)	$	(0.1	)

(1) The results include the interest rate swap gain (loss) prior to discontinuation in May 2011.

Credit-risk-related Contingent Features. Derivative financial investments expose us to credit risk in the event of non-performance by the counterparties under the terms of the interest rate hedge agreements. We believe we minimize our credit risk on these transactions by transacting with major creditworthy financial institutions. As part of our on-going control procedures, we monitor the credit ratings of counterparties and our exposure to any single entity, which we believe minimizes credit risk concentration.

Our agreements with each of our derivative counterparties contain provisions which provide the counterparty the right to declare a default on our derivative obligations if we are in default on any of our indebtedness, subject to certain thresholds. For all instances, these provisions include a default even if there is no acceleration of the indebtedness. Our agreements with each of our derivative counterparties also provide if we consolidate with, merge with or into, or transfer all or substantially all our assets to another entity and the creditworthiness of the resulting, surviving, or transferee entity is materially weaker than ours, the counterparty has the right to terminate the derivative obligations.

At September 30, 2012, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk (the “termination value”), related to these agreements was approximately $1.9 million. The credit-risk related contingent features underlying these agreements had not been triggered as of September 30, 2012. In October 2012, our interest rate swap matured and was settled.

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Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012		Dec. 31, 2011
Deferred compensation plan investments	$ 38.9	[1]	$ 41.0	[1]
Derivative financial instruments, Assets	0		0.1
Derivative financial instruments, Liabilities	0.2		16.6
Participant Withdrawals From Deferred Compensation Plan Investments	7.0
Level 1 [Member]
Deferred compensation plan investments	38.9	[1]	41.0	[1]
Derivative financial instruments, Assets	0		0
Derivative financial instruments, Liabilities	0		0
Level 2 [Member]
Deferred compensation plan investments	0	[1]	0	[1]
Derivative financial instruments, Assets	0		0.1
Derivative financial instruments, Liabilities	0.2		16.6
Level 3 [Member]
Deferred compensation plan investments	0	[1]	0	[1]
Derivative financial instruments, Assets	0		0
Derivative financial instruments, Liabilities	$ 0		$ 0

[1] (1) The balance at September 30, 2012 also reflects approximately $7.0 million of participant cash withdrawals from our deferred compensation plan investment during the nine months ended September 30, 2012.

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Investments In Joint Ventures

9 Months Ended

Sep. 30, 2012

Investments In Joint Ventures [Abstract]

Investments In Joint Ventures

7. Investments in Joint Ventures

As of September 30, 2012, our equity investments in unconsolidated joint ventures consisted of five joint ventures, with our ownership percentages ranging from 15% to 50%. We utilize the equity method of accounting to account for transactions related to these investments. We currently provide property management services to each of these joint ventures which owns operating properties, and we may provide construction and development services to the joint ventures which own properties under development. The following table summarizes aggregate balance sheet and statement of income data for the unconsolidated joint ventures as of and for the periods presented:

(in millions)	September 30, 2012		(1)	December 31, 2011
Total assets	$	1,068.1		$	1,394.9
Total third-party debt	844.7			1,093.9
Total equity	188.7			261.6

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2012		2011			2012		2011
Total revenues (2)	$	37.5	$	40.4		$	111.6	$	99.1
Net income (loss)	15.3		(7.4		)	13.5		(13.8		)
Equity in income (loss) (3)	3.7		(0.6		)	4.7		(0.2		)

(1) In January 2012, as a result of our purchase of the remaining 80% ownership interest in previously unconsolidated joint ventures, we consolidated twelve joint ventures previously accounted for in accordance with the equity method. Refer to Note 6, "Property Acquisitions, Discontinued Operations, and Assets Held for Sale," for further discussion of the acquisition.

(2) Excludes approximately $2.2 millionand $7.5 million of revenues for the three and nine months ended September 30, 2012, and$5.7 million and $16.4 million for the three and nine months ended September 30, 2011, respectively, related to discontinued operations within one of our unconsolidated joint ventures resulting from the sale of four operating properties in the fourth quarter of 2011 and one operating property in the fourth quarter of 2012. Discontinued operations also relates to the sale of one operating property in another unconsolidated joint venture during the third quarter of 2012.

(3) Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

The joint ventures in which we have a partial interest have been funded in part with secured third-party debt. As of September 30, 2012, we had no outstanding guarantees related to loans of our unconsolidated joint ventures.

We may earn fees for property management, construction, development, and other services related to joint ventures in which we own an interest. Fees earned for these services amounted to approximately $2.8 million and $2.4 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $8.8 million and $6.4 million for the nine months ended September 30, 2012 and 2011, respectively. We eliminate fee income for services provided to these joint ventures to the extent of our ownership.

In January 2012, one of our discretionary investment funds acquired a multifamily property, Camden Asbury, consisting of 350 units located in Raleigh, North Carolina. In March 2012, this fund acquired approximately 15.0 acres of land located in Orange County, Florida. In September 2012, this fund acquired approximately 3.7 acres of land located in Charlotte, North Carolina. The fund intends to utilize these land holdings for development of multifamily apartment communities.

In August 2012, one of our funds sold one operating property, Camden South Congress, consisting of 253 units located in Austin, Texas for approximately $54.4 million. Our proportionate share of the gain was approximately $2.9 million, which was reported as a component of equity in income (loss) of joint ventures in the condensed consolidated statements of income and comprehensive income. In October 2012, one of our unconsolidated joint ventures sold one operating property, Camden Passage, consisting of 596 units located in Kansas City, Missouri for approximately $40.7 million.

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Notes Payable

9 Months Ended

Sep. 30, 2012

Notes Payable [Abstract]

Notes Payable

8. Notes Payable

The following is a summary of our indebtedness:

	Balance at
(in millions)	September 30, 2012		December 31, 2011
Commercial Banks
Unsecured line of credit and short-term borrowings	$	34.0	$	—
	34.0		—
Senior unsecured notes
5.93% Notes, due 2012	189.6		189.6
5.45% Notes, due 2013	199.8		199.7
5.08% Notes, due 2015	249.5		249.3
5.75% Notes, due 2017	246.3		246.2
4.70% Notes, due 2021	248.7		248.6
5.00% Notes, due 2023	247.4		247.3
	1,381.3		1,380.7
Total unsecured notes payable	1,415.3		1,380.7
Secured notes
0.96% – 6.00% Conventional Mortgage Notes, due 2013 – 2045	940.3		1,012.3
1.35% Tax-exempt Mortgage Note due 2028	38.1		39.1
	978.4		1,051.4
Total notes payable	$	2,393.7	$	2,432.1
Floating rate tax-exempt debt included in secured notes (1.35%)	$	38.1	$	39.1
Floating rate debt included in secured notes (0.96% - 1.69%)	206.4		206.4

We have a $500 million unsecured credit facility which matures in September 2015 with an option to extend at our election to September 2016.  Additionally, we have the option to increase this credit facility to $750 million by either adding additional banks to the credit facility or obtaining the agreement of the existing banks in the credit facility to increase their commitments. The interest rate is based upon LIBOR plus a margin which is subject to change as our credit ratings change. Advances under the line of credit may be priced at the scheduled rates, or we may enter into bid rate loans with participating banks at rates below the scheduled rates. These bid rate loans have terms of 180 days or less and may not exceed the lesser of $250 million or the remaining amount available under the line of credit. The line of credit is subject to customary financial covenants and limitations. We are in compliance with all such financial covenants and limitations.

Our line of credit provides us with the ability to issue up to $100 million in letters of credit. While our issuance of letters of credit does not increase our borrowings outstanding under our line of credit, it does reduce the amount available. At September 30, 2012, we had outstanding letters of credit totaling approximately $10.9 million, leaving approximately $455.1 million available under our unsecured line of credit.

In June 2012, we repaid a 4.92% secured third-party note payable which was due to mature on July 1, 2012 for approximately $33.7 million. In August 2012, we repaid a 5.07% secured third-party note payable which matured on August 1, 2012 for approximately $19.3 million. In August 2012, we repaid a 4.92% secured third-party note payable which was due to mature on September 1, 2012 for approximately $16.7 million.

On October 1, 2012, we repaid a $31.5 million secured third-party note payable which was scheduled to mature in August 2013. This secured debt related to a fully-consolidated joint venture in which we acquired the remaining noncontrolling ownership interest in September 2012. See Note 6, "Property acquisitions, discontinued operations, and assets held for sale" for further discussion.

At September 30, 2012 and 2011, the weighted average interest rate on our floating rate debt, which include amounts outstanding on our unsecured line of credit, was approximately 1.1%.

Our indebtedness, including amounts drawn on our unsecured line of credit, had a weighted average maturity of 6.2 years at September 30, 2012. Scheduled repayments on outstanding debt, including our line of credit and scheduled principal amortizations, and the weighted average interest rate on maturing debt at September 30, 2012 were as follows:

(in millions)	Amount		Weighted Average Interest Rate
2012	$	190.3	5.9	%
2013 (1)	259.5		4.9
2014	11.0		6.0
2015	286.4		4.6
2016 (2)	2.6		—
2017 and thereafter	1,643.9		4.6
Total	$	2,393.7	4.8	%

(1) Includes $31.5 million of secured debt which was repaid subsequent to September 30, 2012 in conjunction with the acquisition of the remaining 75% interest in a fully-consolidated joint venture.

(2) Includes only scheduled principal amortizations.

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Share-Based Compensation

9 Months Ended

Sep. 30, 2012

Share-based Compensation [Abstract]

Share-Based Compensation

10. Share-based Compensation

Incentive Compensation. During the second quarter of 2011, our Board of Trust Managers adopted, and on May 11, 2011 our shareholders approved, the 2011 Share Incentive Plan of Camden Property Trust (the “2011 Share Plan”). Under the 2011 Share Plan, we may issue up to a total of approximately 9.1 million fungible units (the “Fungible Pool Limit”), which is comprised of approximately 5.8 million new fungible units plus approximately 3.3 million fungible units previously available for issuance under our 2002 share incentive plan based on a 3.45 to 1.0 fungible unit-to full value award conversion ratio. Fungible units represent the baseline for the number of shares available for issuance under the 2011 Share Plan. Different types of awards are counted differently against the Fungible Pool Limit, as follows:

• Each share issued or to be issued in connection with an award, other than an option, right or other award which does not deliver the full value at grant of the underlying shares, will be counted against the Fungible Pool Limit as 3.45 fungible pool units;

• Options and other awards which do not deliver the full value at grant of the underlying shares and which expire more than five years from date of grant will be counted against the Fungible Pool Limit as one fungible pool unit; and

• Options, rights and other awards which do not deliver the full value at date of grant and expire five years or less from the date of grant will be counted against the Fungible Pool Limit as 0.83 of a fungible pool unit.

At September 30, 2012 approximately 7.9 million fungible units were available under the 2011 Share Plan, which results in approximately 2.3 million common shares which may be granted pursuant to full value awards based on the 3.45 to 1.0 fungible unit-to-full value award conversion ratio.

Awards which may be granted under the 2011 Share Plan include incentive share options, non-qualified share options (which may be granted separately or in connection with an option), share awards, dividends and dividend equivalents and other equity based awards. Persons eligible to receive awards under the 2011 Share Plan are trust managers, directors of our affiliates, executive and other officers, key employees and consultants, as determined by the Compensation Committee of our Board of Trust Managers. The 2011 Share Plan will expire on May 11, 2021. In July 2012, the 2011 Share Plan was amended to provide that annual share grants to our trust managers will vest as determined by the Compensation Committee of our Board of Trust Managers at the date of grant, subject to the provisions of the 2011 Share Plan.

Options. Approximately 0.5 million options were exercised during each of the nine months ended September 30, 2012 and 2011. The options were exercised at prices ranging from $30.06 to $51.37 per option during the nine months ended September 30, 2012, and at prices ranging from $30.06 to $62.32 per option during the nine months ended September 30, 2011. The total intrinsic value of options exercised was approximately $12.0 million and $9.5 million, during the nine months ended September 30, 2012 and 2011, respectively. As of September 30, 2012, there was approximately $0.6 million of total unrecognized compensation cost related to unvested options, which is expected to be amortized over the next two years. At September 30, 2012, outstanding options and exercisable options had a weighted average remaining life of approximately 4.2 years and 3.2 years, respectively.

The following table summarizes outstanding share options and exercisable options at September 30, 2012:

	Outstanding Options (1)			Exercisable Options (1)
Range of Exercise Prices	Number	Weighted Average Price		Number	Weighted Average Price
$30.06-$31.48	210,750	$	30.06	14,943	$	30.12
$41.16-$43.94	258,632	42.72		240,000	42.63
$45.53-$73.32	379,330	49.05		306,221	49.30
Total options	848,712	$	42.41	561,164	$	45.93

(1) The aggregate intrinsic value of outstanding and exercisable options at September 30, 2012 were $18.9 million and $10.6 million, respectively. The aggregate intrinsic values were calculated as the excess, if any, between our closing share price of $64.49 per share on September 30, 2012 and the strike price of the underlying award.

Valuation Assumptions. Options generally have a vesting period of three to five years. We estimate the fair values of each option award on the date of grant using the Black-Scholes option pricing model. No options have been granted in 2012.

Share Awards and Vesting. Share awards generally have a vesting period of five years. The compensation cost for share awards is based on the market value of the shares on the date of grant and is amortized over the vesting period. To estimate forfeitures, we use actual forfeiture history. At September 30, 2012, the unamortized value of previously issued unvested share awards was approximately $36.9 million, which is expected to be amortized over the next five years. The total fair value of shares vested during the nine months ended September 30, 2012 and 2011 was approximately $13.4 million and $11.0 million, respectively.

Total compensation cost for option and share awards charged against income was approximately $3.6 million and $3.3 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $10.4 million and $9.5 million for the nine months ended September 30, 2012 and 2011, respectively. Total capitalized compensation cost for option and share awards was approximately $0.4 million and $0.3 million for the three months ended September 30, 2012 and 2011, respectively, and approximately $1.1 million and $0.9 million for the nine months ended September 30, 2012 and 2011, respectively.

The following table summarizes activity under our share incentive plans for the nine months ended September 30, 2012:

	Options Outstanding		Weighted Average Exercise Price		Nonvested Share Awards Outstanding		Weighted Average Grant  Price
Total options and nonvested share awards outstanding at December 31, 2011	1,339,536		$	42.27	818,754		$	46.88
Granted	—		—		345,180		63.50
Exercised/vested	(458,881	)	40.74		(274,119	)	48.71
Forfeited	(31,943	)	60.56		(13,338	)	51.52
Net activity	(490,824	)			57,723
Total options and nonvested share awards outstanding at September 30, 2012	848,712		$	42.41	876,477		$	52.77

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Description Of Business (Details)	Sep. 30, 2012
Accounting Policies [Abstract]
Number of multifamily communities comprising of apartment homes	209
Total number of apartment homes in multifamily communities	70,871
Number of multifamily properties under development	6
Total number of apartment homes in multifamily properties upon completion of development	2,040

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Derivative Instruments And Hedging Activities (Schedule Of Outstanding Interest Rate Derivatives) (Details) (Not-Designated [Member], USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Interest Rate Cap [Member]
Number of Instruments	1
Notional Amount	$ 175.0
Interest Rate Swaps [Member]
Number of Instruments	1	[1]
Notional Amount	$ 500.0	[1]

[1] In October 2012, the interest rate swap matured and was settled.

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Noncontrolling Interests

9 Months Ended

Sep. 30, 2012

Noncontrolling Interests [Abstract]

Noncontrolling Interests

15. Noncontrolling Interests

The following table summarizes the effect of changes in our ownership interest in subsidiaries on the equity attributable to common shareholders for the nine months ended September 30:

(in thousands)	2012			2011
Net income attributable to common shareholders	$	141,224		$	2,529
Transfers from the noncontrolling interests:
Increase (decrease) in equity for conversion of operating partnership units	(448		)	592
Decrease in additional-paid-in-capital for purchase of remaining noncontrolling ownership interest in a consolidated joint venture	(13,285		)	—
Change in common equity and net transfers from noncontrolling interests	$	127,491		$	3,121

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Tables)

9 Months Ended

Sep. 30, 2012

Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed for the acquisitions of the twelve joint ventures and four operating properties described above as of the respective acquisition/consolidation dates (in millions):

Assets acquired:
	Buildings and improvements	$	460.4
	Land	134.9
	Cash	3.4
	Restricted cash	0.7
	Intangible and other assets	14.5
Total assets acquired		$	613.9
Liabilities assumed:
	Mortgage debt (1)	$	272.6
	Other liabilities	6.6
Total liabilities assumed		$	279.2
	Net assets acquired	$	334.7

(1) Mortgage debt assumed was subsequently repaid in January 2012 at face value.

Unaudited pro forma summary for consolidated information

The information below for the three and nine months ended September 30, 2012, contains pro forma results for the respective portions of the periods prior to the respective acquisition/consolidation dates and actual results from the respective dates of acquisition/consolidation through the end of the periods.

	Pro Forma Three Months Ended September 30,				Pro Forma Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
	(unaudited)
Property revenues	$	196,396	$	179,665	$	571,048	$	526,824
Property expenses	74,060		72,541		216,160		211,034
	$	122,336	$	107,124	$	354,888	$	315,790

Summary of income from discontinued operations

The following is a summary of income from discontinued operations for the three and nine months ended September 30, 2012 and 2011:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2012		2011		2012		2011
Property revenues	$	1,104	$	4,710	$	4,390	$	13,788
Property expenses	540		2,421		2,284		7,028
	564		2,289		2,106		6,760
Depreciation and amortization	221		1,191		844		3,564
Income from discontinued operations	$	343	$	1,098	$	1,262	$	3,196

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Notes Payable (Scheduled Repayments On Outstanding Debt) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended
	Oct. 31, 2012	Sep. 30, 2012		Jan. 31, 2012
Total notes payable		$ 2,393.7
Weighted Average Interest Rate		4.80%
Repayments of secured third-party notes payable	31.5
Percentage of voting interests acquired		75.00%		80.00%
Maturities Due In 2012 [Member]
2012		190.3
Weighted Average Interest Rate		5.90%
Maturities Due In 2013 [Member]
2013		259.5	[1]
Weighted Average Interest Rate		4.90%	[1]
Maturities Due In 2014 [Member]
2014		11.0
Weighted Average Interest Rate		6.00%
Maturities Due In 2015 [Member]
2015		286.4
Weighted Average Interest Rate		4.60%
Maturities Due In 2016 [Member]
2016		2.6	[2]
Weighted Average Interest Rate		0.00%	[2]
Maturities Due In 2017 And Thereafter [Member]
2017 and thereafter		$ 1,643.9
Weighted Average Interest Rate		4.60%

[1] Includes $31.5 million of secured debt which was repaid subsequent to September 30, 2012 in conjunction with the acquisition of the remaining 75% interest in a fully-consolidated joint venture.

[2] Includes only scheduled principal amortizations.

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Property Acquisitions, Discontinued Operations, And Assets Held For Sale (Narrative) (Details) (USD $)	0 Months Ended	1 Months Ended			3 Months Ended					9 Months Ended
	Nov. 02, 2012 acre	Oct. 31, 2012	Jan. 31, 2012	Dec. 31, 2011	Sep. 30, 2012 acre	Jun. 30, 2012 acre	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property Acquisitions, Discontinued Operations, And Assets Held For Sale [Abstract]
Acres of land acquired	2.4				12.0	4.7
Purchase price of land acquired	$ 9,000,000				$ 3,300,000	$ 13,400,000
Statement [Line Items]
Number of apartment units in wholly owned property acquired			4,034		253
Equity method investment ownership percentage				20.00%	25.00%			20.00%		25.00%
Number of unconsolidated equity method investments acquired			12
Percentage of voting interests acquired			80.00%		75.00%					75.00%
Cash consideration			99,500,000
Debt assumed			272,600,000
Gain on acquisition of controlling interest in joint ventures			40,200,000		0				0	40,191,000	0
Pro Forma Property Revenues of Acquiree since Acquisition Date, Actual										35,300,000
Pro Forma Property Expenses of Acquiree since Acquisition Date, Actual										14,300,000
Amount payable for purchase of noncontrolling interest					10,200,000					10,241,000	0
Number of operating properties sold				2	1		3	4
Number of apartment homes in operating properties sold		473		788	253		1,033
Number of assets classified as held for sale					2					2
Sales price of assets held for sale sold subsequent to the period end		26,600,000
Dallas Texas [Member]
Statement [Line Items]
Number of apartment units in wholly owned property acquired					106	477
Purchase price of operating properties acquired					19,200,000	76,000,000
Atlanta Georgia [Member]
Statement [Line Items]
Number of apartment units in wholly owned property acquired					223
Purchase price of operating properties acquired					25,300,000
Ontario California [Member]
Statement [Line Items]
Number of apartment units in wholly owned property acquired					469
Purchase price of operating properties acquired					$ 90,500,000

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Condensed 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
Beginning Balance at Dec. 31, 2010	$ 1,757,373,000	$ 824,000	$ 2,775,625,000	$ (595,317,000)	$ (461,255,000)	$ (33,458,000)	$ 70,954,000
Perpetual Preferred Units, Beginning Balance at Dec. 31, 2010								97,925,000
Net income	4,647,000			2,529,000			2,118,000	5,250,000
Other comprehensive income	33,659,000					33,659,000
Common shares issued	69,863,000	11,000	69,852,000
Net share awards	10,304,000	4,000	9,597,000		703,000
Employee stock purchase plan	1,817,000		482,000		1,335,000
Common share options exercised	11,964,000	1,000	4,990,000		6,973,000
Conversions of operating partnership units		1,000	591,000				(592,000)
Cash distributions declared to perpetual preferred units								(5,250,000)
Cash distributions declared to equity holders	(111,778,000)			(108,109,000)			(3,669,000)
Redemption of perpetual preferred units	0
Other		(2,000)	2,000
Ending Balance at Sep. 30, 2011	1,777,849,000	839,000	2,861,139,000	(700,897,000)	(452,244,000)	201,000	68,811,000
Perpetual Preferred Units, Ending Balance at Sep. 30, 2011								97,925,000
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	144,903,000			141,224,000			3,679,000	2,851,000
Other comprehensive income	23,000					23,000
Common shares issued	693,375,000	112,000	693,263,000
Net share awards	11,619,000		(2,477,000)		14,096,000
Employee stock purchase plan	1,331,000		613,000		718,000
Common share options exercised	13,273,000		1,840,000		11,433,000
Conversions of operating partnership units		2,000	(450,000)				448,000
Cash distributions declared to perpetual preferred units								(776,000)
Cash distributions declared to equity holders	(148,943,000)			(142,993,000)			(5,950,000)
Redemption of perpetual preferred units	100,000,000							(100,000,000)
Purchase of noncontrolling interests	(10,241,000)		(13,285,000)				3,044,000
Ending Balance at Sep. 30, 2012	2,533,108,000	959,000	3,580,528,000	(692,235,000)	(425,756,000)	(660,000)	70,272,000
Perpetual Preferred Units, Ending Balance at Sep. 30, 2012								$ 0

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Common Shares

9 Months Ended

Sep. 30, 2012

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

4. Common Shares

In March 2010, we announced the creation of an at-the-market (“ATM”) share offering program through which we could, but had no obligation to, sell common shares having an aggregate offering price of up to $250 million (the “2010 ATM program”), in amounts and at times as we determined, into the existing trading market at current market prices as well as through negotiated transactions. The 2010 ATM program terminated in the second quarter of 2011, and no further common shares are available for sale under the 2010 ATM program.

In May 2011, we created an ATM share offering program through which we could, but had no obligation to, sell common shares having an aggregate offering price of up to $300 million (the “2011 ATM program”), in amounts and at times as we determined, into the existing trading market at current market prices as well as through negotiated transactions. The net proceeds resulting from the 2011 ATM program were used to redeem all of our outstanding redeemable perpetual preferred units as further discussed in Note 5, "Operating Partnerships," and for other general corporate purposes, which included funding for development activities, financing of acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness. The 2011 ATM program terminated in the second quarter of 2012, and no further common shares are available for sale under the 2011 ATM program.

The following table presents activity under our 2010 and 2011 ATM programs for the periods presented (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 30, 2012		September 30, 2011		September 30, 2012		September 30, 2011
Total net consideration	$	—	$	32,736.8	$	128,128.0	$	69,862.9
Common shares sold	—		506.2		1,971.4		1,127.9
Average price per share	$	—	$	65.76	$	66.01	$	63.13

In May 2012, we created an ATM share offering program through which we can, but have no obligation to, sell common shares having an aggregate offering price of up to $300 million (the "2012 ATM program"), in amounts and at times as we determine, into the existing trading market at current market prices as well as through negotiated transactions. Actual sales from time to time may depend on a variety of factors including, among others, market conditions, the trading price of our common shares, and determinations by management of the appropriate sources of funding for us. We intend to use the net proceeds from the 2012 ATM program for general corporate purposes, which may include funding for development activities, financing of acquisitions, the redemption or other repurchase of outstanding debt or equity securities, reducing future borrowings under our $500 million unsecured line of credit, and the repayment of other indebtedness.

The following table presents activity under our 2012 ATM program for the periods presented (in thousands, except per share amounts):

	Three Months Ended		Nine Months Ended
	September 30, 2012		September 30, 2012
Total net consideration	$	88,915.9	$	173,627.6
Common shares sold	1,302.5		2,607.9
Average price per share	$	69.34	$	67.63

As of September 30, 2012, we had common shares having an aggregate offering price of up to $123.6 million remaining available for sale under the 2012 ATM program. No additional shares were sold through the date of this filing.

We currently have an automatic shelf registration statement which allows us to offer, from time to time, an unlimited amount of common shares, preferred shares, debt securities, or warrants. In January 2012, we issued 6,612,500 common shares in a public equity offering and received approximately $391.6 million in net proceeds. We utilized these proceeds to fund the acquisition of the remaining 80% interest we did not own in twelve real estate joint ventures that owned twelve apartment communities, containing 4,034 apartment homes in Dallas, Houston, Las Vegas, Phoenix, and Southern California, becoming sole owner of that portfolio. See Note 6, “Property Acquisitions, Discontinued Operations, and Assets Held for Sale” for further discussion of this transaction.

On May 11, 2012, the shareholders of the Company approved an amendment to our Amended and Restated Declaration of Trust to increase our total number of authorized shares from 110.0 million to 185.0 million shares of beneficial interest, consisting of 175.0 million common shares and 10.0 million preferred shares.

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Commitments And Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Anticipated expenditures relating to completion of construction type contracts	$ 178.0		$ 178.0
Rental expense	0.7	0.7	1.9	2.1
Minimum annual rental commitments, remainder 2012	0.6		0.6
Minimum annual rental commitments, 2013	2.5		2.5
Minimum annual rental commitments, 2014	2.4		2.4
Minimum annual rental commitments, 2015	1.5		1.5
Minimum annual rental commitments, 2016	0.4		0.4
Minimum annual rental commitments, thereafter	$ 0.9		$ 0.9
Maximum [Member] | Partnership Interest [Member]
Less than joint venture economic interest noted	100.00%		100.00%

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Investments In Joint Ventures (Tables)

9 Months Ended

Sep. 30, 2012

Investments In Joint Ventures [Abstract]

Aggregate Balance Sheet And Statement Of Income Data For Unconsolidated Joint Ventures

The following table summarizes aggregate balance sheet and statement of income data for the unconsolidated joint ventures as of and for the periods presented:

(in millions)	September 30, 2012		(1)	December 31, 2011
Total assets	$	1,068.1		$	1,394.9
Total third-party debt	844.7			1,093.9
Total equity	188.7			261.6

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2012		2011			2012		2011
Total revenues (2)	$	37.5	$	40.4		$	111.6	$	99.1
Net income (loss)	15.3		(7.4		)	13.5		(13.8		)
Equity in income (loss) (3)	3.7		(0.6		)	4.7		(0.2		)

(1) In January 2012, as a result of our purchase of the remaining 80% ownership interest in previously unconsolidated joint ventures, we consolidated twelve joint ventures previously accounted for in accordance with the equity method. Refer to Note 6, "Property Acquisitions, Discontinued Operations, and Assets Held for Sale," for further discussion of the acquisition.

(2) Excludes approximately $2.2 millionand $7.5 million of revenues for the three and nine months ended September 30, 2012, and$5.7 million and $16.4 million for the three and nine months ended September 30, 2011, respectively, related to discontinued operations within one of our unconsolidated joint ventures resulting from the sale of four operating properties in the fourth quarter of 2011 and one operating property in the fourth quarter of 2012. Discontinued operations also relates to the sale of one operating property in another unconsolidated joint venture during the third quarter of 2012.

(3) Equity in income (loss) excludes our ownership interest of fee income from various property management services provided by us to our joint ventures.

The joi

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Common Shares (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended	9 Months Ended					1 Months Ended		3 Months Ended		9 Months Ended		1 Months Ended	3 Months Ended	9 Months Ended	1 Months Ended
	Jan. 31, 2012	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	May 11, 2012	May 10, 2012	Dec. 31, 2011	May 31, 2011 2010 and 2011 ATM Programs [Member]	Mar. 31, 2010 2010 and 2011 ATM Programs [Member]	Sep. 30, 2012 2010 and 2011 ATM Programs [Member]	Sep. 30, 2011 2010 and 2011 ATM Programs [Member]	Sep. 30, 2012 2010 and 2011 ATM Programs [Member]	Sep. 30, 2011 2010 and 2011 ATM Programs [Member]	May 31, 2012 2012 ATM Program [Member]	Sep. 30, 2012 2012 ATM Program [Member]	Sep. 30, 2012 2012 ATM Program [Member]	Jan. 31, 2012 January 2012 Public Equity Offering [Member]	Sep. 30, 2012 Line of Credit [Member]
Maximum aggregate offering price of common shares								$ 300,000,000	$ 250,000,000					$ 300,000,000
Amount of current borrowing capacity under unsecured credit facility																		500,000,000
Maximum aggregate offering price of remaining common shares available for sale															123,600,000	123,600,000
Total net consideration			$ 693,375,000	$ 69,863,000						$ 0	$ 32,736,800	$ 128,128,000	$ 69,862,900		$ 88,915,900	$ 173,627,600	$ 391,600,000
Common shares sold										0	506,200	1,971,400	1,127,900		1,302,500	2,607,900	6,612,500
Average price per common share sold										$ 0	$ 65.76	$ 66.01	$ 63.13		$ 69.34	$ 67.63
Percentage of voting interests acquired	80.00%	75.00%	75.00%
Number of unconsolidated equity method investments acquired	12
Number of apartment units in wholly owned property acquired	4,034	253
Number of common and preferred stock authorized to issue					185,000,000	110,000,000
Common shares, authorized		175,000,000	175,000,000		175,000,000		100,000,000
Preferred shares, authorized					10,000,000

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Fair Value Disclosures

9 Months Ended

Sep. 30, 2012

Fair Value Disclosures [Abstract]

Fair Value Disclosures

14. Fair Value Disclosures

Recurring Fair Value Disclosures. The following table presents information about our financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2012 and December 31, 2011 under the fair value hierarchy discussed in Footnote 2, "Summary of Significant Accounting Policies and Recent Accounting Pronouncements."

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	September 30, 2012								December 31, 2011
(in millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Deferred compensation plan investments (1)	$	38.9	$	—	$	—	$	38.9	$	41.0	$	—	$	—	$	41.0
Derivative financial instruments	—		—		—		—		—		0.1		—		0.1
Liabilities
Derivative financial instruments	$	—	$	0.2	$	—	$	0.2	$	—	$	16.6	$	—	$	16.6

(1) The balance at September 30, 2012 also reflects approximately $7.0 million of participant cash withdrawals from our deferred compensation plan investment during the nine months ended September 30, 2012.

Financial Instrument Fair Value Disclosures. As of September 30, 2012 and December 31, 2011, the carrying values of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and distributions payable represent fair value because of the short-term nature of these instruments. The carrying value of restricted cash approximates its fair value based on the nature of our assessment of the ability to recover these amounts. Due to the short-term nature of these instruments, Level 1 and Level 2 inputs are utilized to estimate the fair value of these financial instruments.

The following table presents the carrying and estimated fair value of our notes payable at September 30, 2012 and December 31, 2011:

	September 30, 2012				December 31, 2011
(in millions)	Carrying Value		Estimated Fair  Value		Carrying Value		Estimated Fair  Value
Fixed rate notes payable	$	2,115.2	$	2,351.5	$	2,186.6	$	2,304.4
Floating rate notes payable (1)	278.5		269.8		245.5		233.6

(1) Includes balances outstanding under our unsecured line of credit.

Non-recurring Fair Value Disclosures. There were no events during the nine months ended September 30, 2012 or 2011 which required fair value adjustments of our non-financial assets and non-financial liabilities.