10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934 

For the quarterly period ended September 30, 2020

Commission file number 1-12672

AVALONBAY COMMUNITIES, INC.

(Exact name of registrant as specified in its charter)

	Maryland	77-0404318
(State or other jurisdiction of		(I.R.S. Employer
incorporation or organization)		Identification No.)

4040 Wilson Blvd., Suite 1000

Arlington, Virginia  22203

(Address of principal executive offices, including zip code)

(703) 329-6300

(Registrant's telephone number, including area code)  

(Former name, if changed since last report) 

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol		Name of each exchange on which registered
Common Stock, par value $0.01 per share		AVB	New York Stock Exchange

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 twelve (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 ninety (90) days.

Yes ☒                    No ☐

Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☒                    No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).

Yes ☐                    No ☒

APPLICABLE ONLY TO CORPORATE ISSUERS

Indicate the number of shares outstanding of each of the issuer's classes of common stock as of the latest practicable date:

139,608,983 shares of common stock, par value $0.01 per share, were outstanding as of October 30, 2020.

AVALONBAY COMMUNITIES, INC.

FORM 10-Q

INDEX

		PAGE
PART I - FINANCIAL INFORMATION
ITEM 1.	CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
	CONDENSED CONSOLIDATED BALANCE SHEETS AS OF SEPTEMBER 30, 2020 (UNAUDITED) AND DECEMBER 31, 2019	1
	CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019	2
	CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2020 AND 2019	3
	NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)	6
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS		28
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK		53
ITEM 4. CONTROLS AND PROCEDURES		53
PART II - OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS		53
ITEM 1A. RISK FACTORS		53
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS		56
ITEM 3. DEFAULTS UPON SENIOR SECURITIES		56
ITEM 4. MINE SAFETY DISCLOSURES		56
ITEM 5. OTHER INFORMATION		56
ITEM 6. EXHIBITS		57
SIGNATURES		58

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Dollars in thousands, except per share data)

	9/30/2020		12/31/2019
	(unaudited)
ASSETS
Real estate:
Land and improvements	$	4,392,228	$	4,299,162
Buildings and improvements	17,093,580		16,668,496
Furniture, fixtures and equipment	913,687		829,242
	22,399,495		21,796,900
Less accumulated depreciation	(5,644,219)		(5,164,398)
Net operating real estate	16,755,276		16,632,502
Construction in progress, including land	1,200,502		1,303,751
Land held for development	43,494		—
For-sale condominium inventory	298,429		457,809
Real estate assets held for sale, net	—		38,927
Total real estate, net	18,297,701		18,432,989
Cash and cash equivalents	87,530		39,687
Cash in escrow	94,870		87,927
Resident security deposits	31,949		34,224
Investments in unconsolidated real estate entities	194,317		165,806
Deferred development costs	73,748		70,486
Prepaid expenses and other assets	206,873		164,971
Right of use lease assets	157,623		124,961
Total assets	$	19,144,611	$	19,121,051
LIABILITIES AND EQUITY
Unsecured notes, net	$	6,700,250	$	6,358,648
Variable rate unsecured credit facility	—		—
Mortgage notes payable, net	863,396		937,642
Dividends payable	225,025		215,414
Payables for construction	88,040		92,135
Accrued expenses and other liabilities	292,275		274,013
Lease liabilities	182,859		140,468
Accrued interest payable	62,248		47,154
Resident security deposits	57,683		61,752
Liabilities related to real estate assets held for sale	—		375
Total liabilities	8,471,776		8,127,601
Commitments and contingencies
Redeemable noncontrolling interests	2,593		3,252
Equity:
Preferred stock, $0.01 par value; $25 liquidation preference; 50,000,000 shares authorized at September 30, 2020 and December 31, 2019; zero shares issued and outstanding at September 30, 2020 and December 31, 2019	—		—
Common stock, $0.01 par value; 280,000,000 shares authorized at September 30, 2020 and December 31, 2019; 139,828,685 and 140,643,962 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	1,398		1,406
Additional paid-in capital	10,681,158		10,736,733
Accumulated earnings less dividends	29,705		282,913
Accumulated other comprehensive loss	(42,617)		(31,503)
Total stockholders' equity	10,669,644		10,989,549
Noncontrolling interests	598		649
Total equity	10,670,242		10,990,198
Total liabilities and equity	$	19,144,611	$	19,121,051

See accompanying notes to Condensed Consolidated Financial Statements.

1

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited)

(Dollars in thousands, except per share data)

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Revenue:
Rental and other income	$	566,387	$	586,382	$	1,742,509	$	1,727,576
Management, development and other fees	1,017		1,231		2,950		3,484
Total revenue	567,404		587,613		1,745,459		1,731,060
Expenses:
Operating expenses, excluding property taxes	143,909		133,445		406,991		389,825
Property taxes	68,934		64,374		202,973		187,890
Interest expense, net	53,249		51,493		162,562		149,395
(Gain) loss on extinguishment of debt, net	(105)		93		9,333		602
Depreciation expense	175,348		165,463		529,508		490,213
General and administrative expense	13,985		12,769		46,878		45,440
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		4,289		2,562
Total expenses	455,887		427,812		1,362,534		1,265,927
Equity in income of unconsolidated real estate entities	5,083		1,643		6,770		780
Gain on sale of communities	31,607		130,484		91,338		165,849
Gain on other real estate transactions, net	129		73		328		374
Gain on for-sale condominiums, net of marketing and administrative costs	(646)		(1,108)		4,162		(2,526)
Income before income taxes	147,690		290,893		485,523		629,610
Income tax benefit (expense)	27		(11,184)		1,069		(11,178)
Net income	147,717		279,709		486,592		618,432
Net income attributable to noncontrolling interests	(14)		(32)		(90)		(108)
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Other comprehensive income (loss):
Gain (loss) on cash flow hedges	1,333		(13,644)		(17,731)		(23,763)
Cash flow hedge losses reclassified to earnings	2,367		1,746		6,617		4,825
Comprehensive income	$	151,403	$	267,779	$	475,388	$	599,386
Earnings per common share - basic:
Net income attributable to common stockholders	$	1.05	$	2.00	$	3.46	$	4.44
Earnings per common share - diluted:
Net income attributable to common stockholders	$	1.05	$	2.00	$	3.46	$	4.43

See accompanying notes to Condensed Consolidated Financial Statements.

2

AVALONBAY COMMUNITIES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

(Dollars in thousands)

	For the nine months ended
	9/30/2020		9/30/2019
Cash flows from operating activities:
Net income	$	486,592	$	618,432
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation expense	529,508		490,213
Amortization of deferred financing costs	5,617		5,458
Amortization of debt discount	1,321		1,186
Loss on extinguishment of debt, net	9,333		602
Amortization of stock-based compensation	17,753		20,810
Equity in loss of, and return on, unconsolidated real estate entities and noncontrolling interests, net of eliminations	5,204		10,787
Abandonment of development pursuits	2,095		1,080
Cash flow hedge losses reclassified to earnings	6,617		4,825
Gain on sale of real estate assets	(96,823)		(166,223)
Gain on for-sale condominiums	(8,174)		—
Increase in resident security deposits, prepaid expenses and other assets	(36,332)		(29,804)
Increase in accrued expenses, other liabilities and accrued interest payable	39,363		57,556
Net cash provided by operating activities	962,074		1,014,922
Cash flows from investing activities:
Development/redevelopment of real estate assets including land acquisitions and deferred development costs	(562,334)		(791,551)
Acquisition of real estate assets, including partnership interest	—		(286,804)
Capital expenditures - existing real estate assets	(76,860)		(92,825)
Capital expenditures - non-real estate assets	(24,720)		(4,223)
Decrease in payables for construction	(4,095)		(3,390)
Proceeds from sale of real estate, net of selling costs	186,090		421,735
Proceeds from the sale of for-sale condominiums, net of selling costs	170,604		—
Mortgage note receivable lending	(260)		(565)
Mortgage note receivable payments	3,419		978
Distributions from unconsolidated real estate entities	9,877		694
Investments in unconsolidated real estate entities	(23,044)		(1,253)
Net cash used in investing activities	(321,323)		(757,204)
Cash flows from financing activities:
Issuance of common stock, net	1,599		207,789
Repurchase of common stock, net	(137,458)		—
Dividends paid	(661,000)		(627,467)
Issuance of mortgage notes payable	51,000		30,250
Repayments of mortgage notes payable, including prepayment penalties	(125,427)		(160,709)
Issuance of unsecured notes	1,296,581		449,804
Repayment of unsecured notes, including prepayment penalties	(958,681)		—
Payment of deferred financing costs	(11,278)		(10,910)
Payment for termination of forward interest rate swaps	(25,135)		(12,309)
(Payment to) contribution from noncontrolling interest	(59)		455
Payments related to tax withholding for share-based compensation	(14,752)		(15,961)
Distributions to DownREIT partnership unitholders	(36)		(34)
Distributions to joint venture and profit-sharing partners	(319)		(336)
Preferred interest obligation redemption and dividends	(1,000)		(1,400)
Net cash used in financing activities	(585,965)		(140,828)
Net increase in cash, cash equivalents and cash in escrow	54,786		116,890
Cash, cash equivalents and cash in escrow, beginning of period	127,614		217,864
Cash, cash equivalents and cash in escrow, end of period	$	182,400	$	334,754
Cash paid during the period for interest, net of amount capitalized	$	133,913	$	114,400

See accompanying notes to Condensed Consolidated Financial Statements.

3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (continued)

The following table provides a reconciliation of cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows (dollars in thousands):

	For the nine months ended
	9/30/2020		9/30/2019
Cash and cash equivalents	$	87,530	$	246,425
Cash in escrow	94,870		88,329
Cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows	$	182,400	$	334,754

Supplemental disclosures of non-cash investing and financing activities:

During the nine months ended September 30, 2020:

•As described in Note 4, "Equity," 165,426 shares of common stock were issued as part of the Company's stock-based compensation plans, of which 96,317 shares related to the conversion of performance awards to restricted shares, and the remaining 69,109 shares valued at $15,285,000 were issued in connection with new stock grants; 1,967 shares valued at $339,000 were issued through the Company's dividend reinvestment plan; 73,103 shares valued at $14,752,000 were withheld to satisfy employees' tax withholding and other liabilities; and 7,421 restricted shares with an aggregate value of $1,187,000 previously issued in connection with employee compensation were canceled upon forfeiture.

•Common stock dividends declared but not paid totaled $223,391,000.

•The Company recorded a decrease of $387,000 in redeemable noncontrolling interest with a corresponding increase to accumulated earnings less dividends to adjust the redemption value associated with the put options held by joint venture partners and DownREIT partnership units. For further discussion of the nature and valuation of these items, see Note 11, "Fair Value."

•The Company recorded an increase in prepaid expenses and other assets of $1,413,000 and a corresponding adjustment to accumulated other comprehensive loss, and reclassified $6,617,000 of cash flow hedge losses from other comprehensive income (loss) to interest expense, net, to record the impact of the Company's derivative and hedge accounting activity.

•The Company recorded $46,875,000 of lease liabilities and offsetting right of use lease assets related to the execution of two new office leases.

During the nine months ended September 30, 2019:

•The Company issued 150,359 shares of common stock as part of the Company's stock-based compensation plans, of which 73,072 shares related to the conversion of performance awards to restricted shares, and the remaining 77,287 shares valued at $15,145,000 were issued in connection with new stock grants; 1,594 shares valued at $314,000 were issued through the Company's dividend reinvestment plan; 83,602 shares valued at $15,961,000 were withheld to satisfy employees' tax withholding and other liabilities; and 1,730 restricted shares with an aggregate value of $305,000 previously issued in connection with employee compensation were canceled upon forfeiture.

•Common stock dividends declared but not paid totaled $213,070,000.

•The Company recorded an increase of $382,000 in redeemable noncontrolling interest with a corresponding decrease to accumulated earnings less dividends to adjust the redemption value associated with the put options held by joint venture partners and DownREIT partnership units.

•The Company recorded an increase to accrued expenses and other liabilities of $17,824,000 and a corresponding adjustment to accumulated other comprehensive loss, and reclassified $4,825,000 of cash flow hedge losses from other comprehensive income (loss) to interest expense, net, to record the impact of the Company's derivative and hedge accounting activity.

4

•The Company recorded $122,276,000 of lease liabilities and offsetting right of use lease assets for its ground and office leases, upon the adoption of ASU 2016-02, Leases, as of January 1, 2019.

5

AVALONBAY COMMUNITIES, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1.  Organization, Basis of Presentation and Significant Accounting Policies

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries), is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986 (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion markets in Southeast Florida and Denver, Colorado (the "Expansion Markets").

At September 30, 2020, the Company owned or held a direct or indirect ownership interest in 275 operating apartment communities containing 80,292 apartment homes in 11 states and the District of Columbia, of which one community containing 344 apartment homes was under redevelopment. In addition, the Company owned or held a direct or indirect ownership interest in 19 communities under development that are expected to contain an aggregate of 6,384 apartment homes when completed, as well as The Park Loggia, which contains 172 for-sale residential condominiums, of which 59 have been sold as of September 30, 2020, and 67,000 square feet of commercial space, of which 64% has been leased as of September 30, 2020. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 27 communities that, if developed as expected, will contain an estimated 9,320 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's 2019 Annual Report on Form 10-K. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

6

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Basic and diluted shares outstanding
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Weighted average DownREIT units outstanding	7,500		7,500		7,500		7,500
Effect of dilutive securities	324,648		505,032		328,865		498,609
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Net income allocated to unvested restricted shares	(342)		(704)		(1,158)		(1,655)
Net income attributable to common stockholders, adjusted	$	147,361	$	278,973	$	485,344	$	616,669
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Earnings per common share - basic	$	1.05	$	2.00	$	3.46	$	4.44
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships	12		11		36		34
Adjusted net income attributable to common stockholders	$	147,715	$	279,688	$	486,538	$	618,358
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Earnings per common share - diluted	$	1.05	$	2.00	$	3.46	$	4.43

All options to purchase shares of common stock outstanding as of September 30, 2020 and 2019 are included in the computation of diluted earnings per share.

Derivative Instruments and Hedging Activities

The Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivative transactions for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an on-going basis. Hedge ineffectiveness is reported as a component of interest expense, net. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair value of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivative positions that the Company has determined qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in other comprehensive loss. Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that the Company has determined qualified as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding debt being hedged. See Note 11, "Fair Value," for further discussion of derivative financial instruments.

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

7

Acquisitions of Investments in Real Estate

The Company accounts for acquisitions of investments in real estate in accordance with the authoritative guidance for the initial measurement, which first requires that the Company determine if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company must identify and determine the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. In making estimates of fair values for purposes of allocating purchase price, the Company utilizes various sources, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the allocation of the purchase price is based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be viewed as asset acquisitions.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

Certain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity and segment classification.

For-Sale Condominium Inventory

The Company presents for-sale condominium inventory at historical cost and evaluates the condominium inventory for impairment when potential indicators exist, as further discussed in Note 6, "Real Estate Disposition Activities." 

Leases

The Company is party to leases as both a lessor and a lessee, primarily as follows:

•lessor of residential and commercial space within its apartment communities; and

•lessee under (i) ground leases for land underlying current operating or development communities and (ii) office leases for its corporate headquarters and regional offices.

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration. The Company’s leases include both fixed and variable lease payments, which are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Lease payments included in the lease liability include only payments that depend on an index or rate. For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates as well as indicative market pricing for longer term rates and taking into consideration the remaining term of each of the lease agreements.

8

Lessor Considerations

The Company evaluates leases in which it is the lessor, which are composed of residential and commercial leases at its apartment communities, and determined these leases to be operating leases. For lease agreements that provide for rent concessions and/or scheduled fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have fixed-price renewal options, and the lessee may be able to exercise its renewal option at an amount less than the fair value of the rent at such time. The Company only includes renewal options in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

Revenue and Gain Recognition

Revenue from contracts with customers is recognized in accordance with the transfer of goods and services to customers at an amount that reflects the consideration that the Company expects to be entitled to for those goods and services. The majority of the Company’s revenue is derived from residential and commercial rental income and other lease income, which are accounted for under ASC 842, Leases, discussed above. The Company's revenue streams that are not accounted for under ASC 842 include (i) management fees, (ii) rental and non-rental related income and (iii) gains or losses on the sale of real estate.

The following table provides details of the Company’s revenue streams disaggregated by the Company’s reportable operating segments, further discussed in Note 8, “Segment Reporting,” for the three and nine months ended September 30, 2020 and 2019. Segment information for total revenue has been adjusted to exclude the real estate assets that were sold from January 1, 2019 through September 30, 2020, or otherwise qualify as held for sale as of September 30, 2020, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	For the three months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	1,017	$	1,017
Rental and non-rental related income (2)	1,959		477		337		—		2,773
Total non-lease revenue (3)	1,959		477		337		1,017		3,790
Lease income (4)	506,587		34,333		20,963		—		561,883
Business interruption insurance proceeds	12		270		—		—		282
Total revenue	$	508,558	$	35,080	$	21,300	$	1,017	$	565,955
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	1,231	$	1,231
Rental and non-rental related income (2)	1,796		445		133		—		2,374
Total non-lease revenue (3)	1,796		445		133		1,231		3,605
Lease income (4)	539,634		29,754		8,219		—		577,607
Business interruption insurance proceeds	307		—		—		—		307
Total revenue	$	541,737	$	30,199	$	8,352	$	1,231	$	581,519

9

	For the nine months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	2,950	$	2,950
Rental and non-rental related income (2)	5,416		1,271		884		—		7,571
Total non-lease revenue (3)	5,416		1,271		884		2,950		10,521
Lease income (4)	1,567,170		103,705		57,519		—		1,728,394
Business interruption insurance proceeds	115		270		—		—		385
Total revenue	$	1,572,701	$	105,246	$	58,403	$	2,950	$	1,739,300
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	3,484	$	3,484
Rental and non-rental related income (2)	5,753		1,078		224		—		7,055
Total non-lease revenue (3)	5,753		1,078		224		3,484		10,539
Lease income (4)	1,599,224		76,671		15,596		—		1,691,491
Business interruption insurance proceeds	914		—		—		—		914
Total revenue	$	1,605,891	$	77,749	$	15,820	$	3,484	$	1,702,944

__________________________________

(1)Revenue represents third-party management, asset management and developer fees and miscellaneous income which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, including but not limited to, apartment hold fees and application fees, as well as revenue streams not related to leasing activities, including but not limited to, vendor revenue sharing, building advertising, vending and dry cleaning revenue.

(3)Represents all revenue accounted for under ASU 2014-09.

(4)Amounts include all revenue streams derived from residential and commercial rental income and other lease income, which are accounted for under ASC 842.

Due to the nature and timing of the Company’s identified revenue streams, there are no material amounts of outstanding or unsatisfied performance obligations as of September 30, 2020.

COVID-19 Pandemic

In March 2020, the World Health Organization designated COVID-19 as a pandemic. While the Company has taken various actions in response to the COVID-19 pandemic, the ultimate impact on its consolidated results of operations, cash flows, financial condition and liquidity will depend on (i) the duration and severity of the pandemic, (ii) the duration and nature of governmental responses to contain the spread of the disease and assist consumers and businesses, (iii) consumer and business responses to the pandemic, including preference for where and how to live and work, and (iv) how quickly and to what extent normal economic and operating conditions can resume. Because of this uncertainty, the Company is not able to estimate the expected impact of the COVID-19 pandemic on its results of operations, cash flows, financial condition, or liquidity for the year ending December 31, 2020 at this time.

As of September 30, 2020, the Company assessed the collectibility of the outstanding lease income receivables as a result of the impact of the COVID-19 pandemic on its residential and commercial lease portfolios. The Company recorded an aggregate offset to income for uncollectible lease revenue for its residential and commercial portfolios of $18,755,000 and $43,034,000 for the three and nine months ended September 30, 2020, respectively, under ASC 842 and ASC 450, Contingencies.

10

Recently Issued and Adopted Accounting Standards

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This ASU requires entities to estimate a lifetime expected credit loss for most financial assets, including (i) trade and other receivables, (ii) other long term financings including available for sale and held-to-maturity debt securities and (iii) loans. Subsequently, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, which amends the scope of ASU 2016-13 and clarified that receivables arising from operating leases are not within the scope of the standard and should continue to be accounted for in accordance with the leases standard (Topic 842). The new standard was adopted on January 1, 2020 and does not have a material effect on the Company’s financial position or results of operations.

2.  Interest Capitalized

The Company capitalizes interest during the development and redevelopment of real estate assets. Capitalized interest associated with the Company's development or redevelopment activities totaled $11,221,000 and $15,443,000 for the three months ended September 30, 2020 and 2019, respectively, and $33,738,000 and $50,159,000 for the nine months ended September 30, 2020 and 2019, respectively.

3.  Mortgage Notes Payable, Unsecured Notes, Term Loans and Credit Facility

The Company's mortgage notes payable, unsecured notes, variable rate unsecured term loans (the "Term Loans") and Credit Facility, as defined below, as of September 30, 2020 and December 31, 2019 are summarized below. The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of September 30, 2020 and December 31, 2019, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities").

	9/30/2020		12/31/2019
Fixed rate unsecured notes (1)	$	6,500,000	$	5,850,000
Variable rate unsecured notes (1)	—		300,000
Term Loans (1)	250,000		250,000
Fixed rate mortgage notes payable - conventional and tax-exempt (2)	409,649		479,221
Variable rate mortgage notes payable - conventional and tax-exempt (2)	471,450		476,150
Total mortgage notes payable and unsecured notes and Term Loans	7,631,099		7,355,371
Credit Facility	—		—
Total mortgage notes payable, unsecured notes, Term Loans and Credit Facility	$	7,631,099	$	7,355,371

_____________________________________

(1)Balances at September 30, 2020 and December 31, 2019 exclude $10,782 and $8,610, respectively, of debt discount, and $38,968 and $32,742, respectively, of deferred financing costs, as reflected in unsecured notes, net on the accompanying Condensed Consolidated Balance Sheets.

(2)Balances at September 30, 2020 and December 31, 2019 exclude $14,636 and $14,464, respectively, of debt discount, and $3,067 and $3,265, respectively, of deferred financing costs, as reflected in mortgage notes payable, net on the accompanying Condensed Consolidated Balance Sheets.

The following debt activity occurred during the nine months ended September 30, 2020:

•In February 2020, the Company issued $700,000,000 principal amount of unsecured notes in a public offering under its existing shelf registration statement for net proceeds of approximately $694,701,000. The notes mature in March 2030 and were issued at a 2.30% interest rate.

•In February 2020, the Company refinanced the secured borrowing for Avalon San Bruno III. The secured borrowing had a fixed interest rate of 3.08% and was refinanced for a principal balance of $51,000,000, with a fixed interest rate of 2.38% and maturity date of March 2027.

11

•In March 2020, the Company repaid (i) $400,000,000 principal amount of its 3.625% unsecured notes in advance of the October 2020 scheduled maturity and (ii) $250,000,000 principal amount of its 3.95% unsecured notes in advance of the January 2021 scheduled maturity. In conjunction with these repayments, the Company recognized a loss on debt extinguishment of $9,170,000 for prepayment penalties and the non-cash write-off of unamortized deferred financing costs.

•In May 2020, the Company issued $600,000,000 principal amount of unsecured notes in a public offering under its existing shelf registration statement for net proceeds of approximately $593,430,000. The notes mature in January 2031 and were issued at a 2.45% interest rate.

•In May 2020, the Company repaid $300,000,000 principal amount of its variable rate unsecured notes in advance of the January 2021 scheduled maturity, recognizing a charge of $268,000 for the non-cash write-off of deferred financing costs.

•In August 2020, the Company repaid $67,904,000 principal amount of 4.18% fixed rate debt secured by Avalon Hoboken at par in advance of its December 2020 maturity date.

At September 30, 2020, the Company had a $1,750,000,000 revolving variable rate unsecured credit facility with a syndicate of banks (the “Credit Facility”) which matures in February 2024. The Credit Facility bears interest at varying levels based on (i) the London Interbank Offered Rate (“LIBOR”) applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.) and (ii) the rating levels issued for our unsecured notes. The current stated pricing for drawn borrowings is LIBOR plus 0.775% per annum (0.92% at September 30, 2020), assuming a one month borrowing rate. The annual facility fee is 0.125% (or approximately $2,188,000 annually based on the $1,750,000,000 facility size and based on the Company's current credit rating).

The Company had no borrowings outstanding under the Credit Facility as of September 30, 2020 and December 31, 2019. The Company had $3,752,000 and $11,488,000 outstanding in letters of credit that reduced the borrowing capacity as of September 30, 2020 and December 31, 2019, respectively. In addition, the Company had $31,822,000 and $24,939,000 outstanding in additional letters of credit on a separate facility unrelated to the Credit Facility as of September 30, 2020 and December 31, 2019, respectively.

In the aggregate, secured notes payable mature at various dates from April 2021 through July 2066, and are secured by certain apartment communities (with a net carrying value of $1,455,524,000, excluding communities classified as held for sale, as of September 30, 2020).

The weighted average interest rate of the Company's fixed rate secured notes payable (conventional and tax-exempt) was 3.8% and 3.9% at September 30, 2020 and December 31, 2019, respectively. The weighted average interest rate of the Company's variable rate secured notes payable (conventional and tax-exempt) including the effect of certain financing related fees, was 1.7% and 3.2% at September 30, 2020 and December 31, 2019, respectively.

Scheduled payments and maturities of secured notes payable and unsecured notes outstanding at September 30, 2020 are as follows (dollars in thousands):

12

Year	Secured notes principal payments		Secured notes maturities		Unsecured notes and Term Loans maturities		Stated interest rate of unsecured notes and Term Loans
2020	$	1,285	$	—	$	—	N/A
2021	9,304		27,844		—		N/A
2022	9,918		—		450,000		2.950	%
					100,000		LIBOR + 0.90%
2023	10,739		—		350,000		4.200	%
					250,000		2.850	%
2024	11,677		—		300,000		3.500	%
					150,000		LIBOR + 0.85%
2025	12,408		—		525,000		3.450	%
					300,000		3.500	%
2026	13,445		—		475,000		2.950	%
					300,000		2.900	%
2027	15,080		236,100		400,000		3.350	%
2028	20,607		—		450,000		3.200	%
2029	11,742		66,250		450,000		3.300	%
Thereafter	189,362		245,338		700,000		2.300	%
					600,000		2.450	%
					350,000		3.900	%
					300,000		4.150	%
					300,000		4.350	%
	$	305,567	$	575,532	$	6,750,000

The Company was in compliance at September 30, 2020 with customary financial covenants under the Credit Facility, the Term Loans and the Company's fixed rate unsecured notes.

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4.  Equity

The following summarizes the changes in equity for the nine months ended September 30, 2020 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2019	$	1,406	$	10,736,733	$	282,913	$	(31,503)	$	10,989,549	$	649	$	10,990,198
Net income attributable to common stockholders	—		—		167,971		—		167,971		—		167,971
Loss on cash flow hedges, net	—		—		—		(17,603)		(17,603)		—		(17,603)
Cash flow hedge losses reclassified to earnings	—		—		—		1,949		1,949		—		1,949
Change in redemption value of redeemable noncontrolling interest	—		—		471		—		471		—		471
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(35)		(35)
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,083)		—		(224,083)		—		(224,083)
Issuance of common stock, net of withholdings	1		(12,492)		(1,616)		—		(14,107)		—		(14,107)
Amortization of deferred compensation	—		7,781		—		—		7,781		—		7,781
Balance at March 31, 2020	$	1,407	$	10,732,022	$	225,656	$	(47,157)	$	10,911,928	$	614	$	10,912,542
Net income attributable to common stockholders	—		—		170,828		—		170,828		—		170,828
Loss on cash flow hedges, net	—		—		—		(1,461)		(1,461)		—		(1,461)
Cash flow hedge losses reclassified to earnings	—		—		—		2,301		2,301		—		2,301
Change in redemption value of redeemable noncontrolling interest	—		—		(146)		—		(146)		—		(146)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		1		1
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,172)		—		(224,172)		—		(224,172)
Issuance of common stock, net of withholdings	—		1,050		138		—		1,188		—		1,188
Amortization of deferred compensation	—		9,724		—		—		9,724		—		9,724
Balance at June 30, 2020	$	1,407	$	10,742,796	$	172,304	$	(46,317)	$	10,870,190	$	615	$	10,870,805
Net income attributable to common stockholders	—		—		147,703		—		147,703		—		147,703
Gain on cash flow hedges, net	—		—		—		1,333		1,333		—		1,333
Cash flow hedge losses reclassified to earnings	—		—		—		2,367		2,367		—		2,367
Change in redemption value of redeemable noncontrolling interest	—		—		62		—		62		—		62
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(17)		(17)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,694)		—		(222,694)		—		(222,694)
Issuance of common stock, net of withholdings	—		105		—		—		105		—		105
Repurchase of common stock, including repurchase costs	(9)		(69,779)		(67,670)		—		(137,458)		—		(137,458)
Amortization of deferred compensation	—		8,036		—		—		8,036		—		8,036
Balance at September 30, 2020	$	1,398	$	10,681,158	$	29,705	$	(42,617)	$	10,669,644	$	598	$	10,670,242

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The following summarizes the changes in equity for the nine months ended September 30, 2019 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2018	$	1,385	$	10,306,588	$	350,777	$	(26,144)	$	10,632,606	$	—	$	10,632,606
Net income attributable to common stockholders	—		—		170,366		—		170,366		—		170,366
Loss on cash flow hedges, net	—		—		—		(7,231)		(7,231)		—		(7,231)
Cash flow hedge losses reclassified to earnings	—		—		—		1,468		1,468		—		1,468
Change in redemption value of redeemable noncontrolling interest	—		—		(224)		—		(224)		—		(224)
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,166)		—		(212,166)		—		(212,166)
Issuance of common stock, net of withholdings	9		143,202		(1,892)		—		141,319		—		141,319
Amortization of deferred compensation	—		7,861		—		—		7,861		—		7,861
Balance at March 31, 2019	$	1,394	$	10,457,651	$	306,861	$	(31,907)	$	10,733,999	$	—	$	10,733,999
Net income attributable to common stockholders	—		—		168,281		—		168,281		—		168,281
Loss on cash flow hedges, net	—		—		—		(2,888)		(2,888)		—		(2,888)
Cash flow hedge losses reclassified to earnings	—		—		—		1,611		1,611		—		1,611
Change in redemption value of redeemable noncontrolling interest	—		—		(45)		—		(45)		—		(45)
Noncontrolling interests income allocation	—		—		—		—		—		530		530
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,549)		—		(212,549)		—		(212,549)
Issuance of common stock, net of withholdings	3		50,803		—		—		50,806		—		50,806
Amortization of deferred compensation	—		10,785		—		—		10,785		—		10,785
Balance at June 30, 2019	$	1,397	$	10,519,239	$	262,548	$	(33,184)	$	10,750,000	$	530	$	10,750,530
Net income attributable to common stockholders	—		—		279,677		—		279,677		—		279,677
Loss on cash flow hedges, net	—		—		—		(13,644)		(13,644)		—		(13,644)
Cash flow hedge losses reclassified to earnings	—		—		—		1,746		1,746		—		1,746
Change in redemption value of redeemable noncontrolling interest	—		—		(113)		—		(113)		—		(113)
Noncontrolling interests income allocation	—		—		—		—		—		118		118
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,526)		—		(212,526)		—		(212,526)
Issuance of common stock, net of withholdings	—		(454)		(263)		—		(717)		—		(717)
Amortization of deferred compensation	—		10,002		—		—		10,002		—		10,002
Balance at September 30, 2019	$	1,397	$	10,528,787	$	329,323	$	(45,082)	$	10,814,425	$	648	$	10,815,073

As of September 30, 2020 and December 31, 2019, the Company's charter had authorized for issuance a total of 280,000,000 shares of common stock and 50,000,000 shares of preferred stock.

15

During the nine months ended September 30, 2020, the Company:

i.issued 1,902 shares of common stock in connection with stock options exercised;

ii.issued 1,967 common shares through the Company's dividend reinvestment plan;

iii.issued 165,426 common shares in connection with restricted stock grants and the conversion of performance awards to restricted shares;

iv.withheld 73,103 common shares to satisfy employees' tax withholding and other liabilities;

v.issued 8,685 common shares through the Employee Stock Purchase Plan;

vi.canceled 7,421 common shares of restricted stock upon forfeiture; and

vii.purchased 912,733 common shares through the 2020 Stock Repurchase Program.

Any deferred compensation related to the Company's stock option, restricted stock and performance award grants during the nine months ended September 30, 2020 is not reflected on the accompanying Condensed Consolidated Balance Sheets as of September 30, 2020, and will not be reflected until recognized as compensation cost.

In July 2020, the Company’s Board of Directors voted to terminate the Company’s prior $500,000,000 Stock Repurchase Program (the "Amended 2005 Stock Repurchase Program") and approved a new stock repurchase program under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000 (the "2020 Stock Repurchase Program"). Purchases of common stock under the 2020 Stock Repurchase Program may be exercised from time to time in the Company’s discretion and in such amounts as market conditions warrant. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. During the three months ended September 30, 2020, the Company repurchased 912,733 shares of common stock at an average price of $150.58 per share. As of September 30, 2020, the Company had $362,560,000 remaining authorized for purchase under this program.

In May 2019, the Company commenced a fifth continuous equity program ("CEP V") under which the Company may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of its common stock from time to time. Actual sales will depend on a variety of factors to be determined by the Company, including market conditions, the trading price of the Company's common stock and determinations by the Company of the appropriate sources of funding for the Company. In conjunction with CEP V, the Company engaged sales agents who will receive compensation of up to 1.5% of the gross sales price for shares sold. The Company expects that, if entered into, it will physically settle each forward sale agreement on one or more dates specified by the Company on or prior to the maturity date of that particular forward sale agreement, in which case the Company will expect to receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the relevant forward sale price. However, the Company may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, the Company will pay the relevant forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three and nine months ended September 30, 2020, the Company had no sales under the program. As of September 30, 2020, the Company had $752,878,000 remaining authorized for issuance under this program.

5.  Investments in Real Estate Entities

Investments in Unconsolidated Real Estate Entities

As of September 30, 2020, the Company had investments in eight unconsolidated real estate entities with ownership interest percentages ranging from 20.0% to 50.0%. The Company accounts for its investments in unconsolidated real estate entities under the equity method of accounting. The significant accounting policies of the Company's unconsolidated real estate entities are consistent with those of the Company in all material respects.

16

During the three and nine months ended September 30, 2020, Archstone Multifamily Partners AC LP (the "U.S. Fund") sold Avalon Venice on Rose, located in Venice, CA, containing 70 apartment homes and 9,000 square feet of commercial space for $65,000,000. The Company's share of the gain was $5,157,000. In conjunction with the disposition of this community, the U.S. Fund repaid $27,117,000 of secured indebtedness at par.

During the three and nine months ended September 30, 2020, the Company entered into a joint venture to develop, own, and operate AVA Arts District, an apartment community located in Los Angeles, CA, which is currently under construction and expected to contain 475 apartment homes when complete. The Company has a 25.0% interest in the venture, and the venture partner owns the remaining 75.0% interest. The Company's total expected equity investment is approximately $27,600,000, of which $14,800,000 has already been contributed. The venture has secured a $165,600,000 variable rate construction loan to fund approximately 60% of the development of AVA Arts District, of which no amounts have been drawn as of September 30, 2020. The venture will commence draws under the loan subsequent to required equity contributions by the venture partners. The Company has guaranteed the construction loan on behalf of the venture, and any obligations under the construction loan guarantee, except for obligations arising from misconduct by the Company, are required capital contributions of the partners based on ownership interest. The venture is considered an unconsolidated VIE as the Company was not considered to be the primary beneficiary due to shared control and decision making with its venture partner. The Company and its venture partner share decision making authority for all significant aspects of the venture's activities including, but not limited to, changes in the ownership, changes to the development plan or budget, and major operating decisions including annual business plans.

The following is a combined summary of the financial position of the entities accounted for using the equity method discussed above as of the dates presented, including development joint ventures started and unconsolidated communities sold during the respective periods (dollars in thousands):

	9/30/2020		12/31/2019
	(unaudited)
Assets:
Real estate, net	$	1,222,762	$	1,204,470
Other assets	265,048		196,488
Total assets	$	1,487,810	$	1,400,958
Liabilities and partners' capital:
Mortgage notes payable, net (1)	$	749,555	$	782,257
Other liabilities	158,875		157,379
Partners' capital	579,380		461,322
Total liabilities and partners' capital	$	1,487,810	$	1,400,958

_________________________________

(1)    The Company has not guaranteed the outstanding debt, nor does the Company have any obligation to fund this debt should the unconsolidated entity be unable to do so.

The following is a combined summary of the operating results of the entities accounted for using the equity method discussed above for the periods presented (dollars in thousands):

17

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
	(unaudited)				(unaudited)
Rental and other income	$	28,800	$	37,382	$	92,299	$	108,635
Operating and other expenses	(12,782)		(14,535)		(37,034)		(42,624)
Gain on sale of communities	18,408		—		18,448		—
Interest expense, net	(8,024)		(8,385)		(24,133)		(25,482)
Depreciation expense	(8,704)		(9,324)		(26,106)		(49,366)
Net income (loss)	$	17,698	$	5,138	$	23,474	$	(8,837)
Company's share of net income (loss) (1)	$	5,611	$	2,175	$	8,357	$	2,377
Amortization of excess investment and other	(528)		(532)		(1,587)		(1,597)
Equity in income from unconsolidated real estate investments	$	5,083	$	1,643	$	6,770	$	780

_________________________________

(1)    Includes the Company's share of gain on sale of communities.

Expensed Transaction, Development and Other Pursuit Costs

The Company capitalizes pre-development costs incurred in pursuit of new development opportunities for which the Company currently believes future development is probable ("Development Rights"). Future development of these Development Rights is dependent upon various factors, including zoning and regulatory approval, rental market conditions, construction costs and the availability of capital. Initial pre-development costs incurred for pursuits for which future development is not yet considered probable are expensed as incurred. In addition, if the status of a Development Right changes, making future development by the Company no longer probable, any non-recoverable capitalized pre-development costs are expensed. The Company expensed costs related to development pursuits not yet considered probable for development and the abandonment of Development Rights, as well as costs incurred in pursuing the acquisition or disposition of assets for which such acquisition and disposition activity did not occur, in the amounts of $4,289,000 and $2,562,000 for the nine months ended September 30, 2020 and 2019, respectively. These costs are included in expensed transaction, development and other pursuit costs, net of recoveries on the accompanying Condensed Consolidated Statements of Comprehensive Income. Abandoned pursuit costs can vary greatly, and the costs incurred in any given period may be significantly different in future periods.

Casualty and Impairment of Long-Lived Assets

In the Company's evaluation of its real estate portfolio for impairment, as discussed below, it considered the impact of the COVID-19 pandemic and did not identify any indicators of impairment as a result.

The Company evaluates its real estate and other long-lived assets for impairment when potential indicators of impairment exist. Such assets are stated at cost, less accumulated depreciation and amortization, unless the carrying amount of the asset is not recoverable. If events or circumstances indicate that the carrying amount of a property or long-lived asset may not be recoverable, the Company assesses its recoverability by comparing the carrying amount of the property or long-lived asset to its estimated undiscounted future cash flows. If the carrying amount exceeds the aggregate undiscounted future cash flows, the Company recognizes an impairment loss to the extent the carrying amount exceeds the estimated fair value of the property or long-lived asset. Based on periodic tests of recoverability of long-lived assets, the Company did not recognize any impairment losses for the three and nine months ended September 30, 2020 and 2019.

The Company evaluates its for-sale condominium inventory for potential indicators of impairment, considering whether the fair value of the for-sale condominium units exceeds the carrying value. For-sale condominium inventory is stated at cost, unless the carrying amount of the inventory is not recoverable when compared to the fair value. The Company determines the fair value of its for-sale condominium inventory as the estimated sales price less direct costs to sell. In addition, the Company incurs marketing and administrative costs related to the for-sale condominiums. For the three and nine months ended September 30, 2020 and 2019, the Company did not identify any indicators of impairment for its for-sale condominium inventory.

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The Company assesses its portfolio of land held for both development and investment for impairment if the intent of the Company changes with respect to either the development of, or the expected holding period for, the land. During the three and nine months ended September 30, 2020 and 2019, the Company did not recognize any impairment charges on its investment in land.

The Company evaluates its unconsolidated investments for other than temporary impairment, considering both the extent and amount by which the carrying value of the investment exceeds the fair value, and the Company's intent and ability to hold the investment to recover its carrying value. The Company also evaluates its proportionate share of any impairment of assets held by unconsolidated investments. There were no other than temporary impairment losses recognized for any of the Company's investments in unconsolidated real estate entities, or impairments recognized by those entities, during the three and nine months ended September 30, 2020 and 2019.

6.  Real Estate Disposition Activities

The following real estate sales occurred during the nine months ended September 30, 2020:

Community Name	Location	Period of sale	Apartment homes	Gross sales price		Gain on Disposition (1)
Avalon Shelton	Shelton, CT	Q120	250	$	64,750	$	24,413
Avalon Tinton Falls	Tinton Falls, NJ	Q220	216	$	64,900	$	35,297
Avalon Towers	Long Beach, NY	Q320	109	$	54,000	$	31,603

_________________________________

(1)    Gain on disposition was reported in gain on sale of communities on the accompanying Condensed Consolidated Statements of Comprehensive Income.

At September 30, 2020, the Company had no real estate assets that qualified as held for sale.

The Park Loggia

The Park Loggia, located in New York, NY, contains 172 for-sale residential condominiums and 67,000 square feet of commercial space. During the three and nine months ended September 30, 2020, the Company sold seven and 59 residential condominiums at The Park Loggia, for gross proceeds of $15,699,000 and $182,512,000, respectively, resulting in a gain in accordance with GAAP of $727,000 and $8,174,000, respectively. The Company incurred $1,373,000 and $1,108,000 during the three months ended September 30, 2020 and 2019, respectively, and $4,012,000 and $2,526,000 during the nine months ended September 30, 2020 and 2019, respectively, in marketing and administrative costs associated with The Park Loggia. All amounts are included in gain (loss) on for-sale condominiums, net of marketing and administrative costs, on the accompanying Condensed Consolidated Statements of Comprehensive Income. As of September 30, 2020, the unsold for-sale residential condominiums at The Park Loggia have an aggregate carrying value of $298,429,000, presented as for-sale condominium inventory on the accompanying Condensed Consolidated Balance Sheets.

7. Commitments and Contingencies

Lease Obligations

The Company owns 11 apartment communities, one community under development and two commercial properties, located on land subject to ground leases expiring between October 2026 and March 2142. The Company has purchase options for all ground leases expiring prior to 2030, which allow the Company to buyout the respective leases for nominal consideration as such leases were structured public finance vehicles. The ground leases for 10 of 11 of the apartment communities and the rest of the ground leases are accounted for as operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 15 leases for its corporate and regional offices with varying terms through 2031, all of which are accounted for or will be accounted for as operating leases.

19

As of September 30, 2020 and December 31, 2019, the Company has total operating lease assets of $135,885,000 and $103,063,000, respectively, and total operating lease obligations of $162,683,000 and $120,261,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $3,958,000 and $3,618,000 for the three months ended September 30, 2020 and 2019, respectively, and $12,115,000 and $10,723,000 for the nine months ended September 30, 2020 and 2019, respectively, related to operating leases.

The Company has one apartment community located on land subject to a ground lease and two leases for portions of parking garages, adjacent to apartment communities, that are accounted for as finance leases. As of September 30, 2020 and December 31, 2019, the Company has total finance lease assets of $21,738,000 and $21,898,000, respectively, and total finance lease obligations of $20,176,000 and $20,207,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets.

8.  Segment Reporting

The Company's reportable operating segments include Established Communities, Other Stabilized Communities, and Development/Redevelopment Communities. Annually as of January 1, the Company determines which of its communities fall into each of these categories and generally maintains that classification throughout the year for the purpose of reporting segment operations, unless disposition or redevelopment plans regarding a community change. In addition, the Company owns land for future development and has other corporate assets that are not allocated to an operating segment.

The Company's segment disclosures present the measure(s) used by the chief operating decision maker for purposes of assessing each segment's performance. The Company's chief operating decision maker ("CODM") is comprised of several members of its executive management team who use net operating income ("NOI") as the primary financial measure for Established Communities and Other Stabilized Communities. NOI is defined by the Company as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, (gain) loss on extinguishment of debt, net, general and administrative expense, equity in income of unconsolidated real estate entities, depreciation expense, corporate income tax expense, casualty and impairment (gain) loss, net, gain on sale of communities, (gain) loss on other real estate transactions, net, gain on for-sale condominiums, net of marketing and administrative costs and net operating income from real estate assets sold or held for sale. Although the Company considers NOI a useful measure of a community's or communities' operating performance, NOI should not be considered an alternative to net income or net cash flow from operating activities, as determined in accordance with GAAP. NOI excludes a number of income and expense categories as detailed in the reconciliation of NOI to net income.

A reconciliation of NOI to net income for the three and nine months ended September 30, 2020 and 2019 is as follows (dollars in thousands):

20

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net income	$	147,717	$	279,709	$	486,592	$	618,432
Indirect operating expenses, net of corporate income	23,837		20,195		70,043		62,935
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		4,289		2,562
Interest expense, net	53,249		51,493		162,562		149,395
(Gain) loss on extinguishment of debt, net	(105)		93		9,333		602
General and administrative expense	13,985		12,769		46,878		45,440
Equity in income of unconsolidated real estate entities	(5,083)		(1,643)		(6,770)		(780)
Depreciation expense	175,348		165,463		529,508		490,213
Income tax (benefit) expense	(27)		11,184		(1,069)		11,178
Gain on sale of communities	(31,607)		(130,484)		(91,338)		(165,849)
Gain on other real estate transactions, net	(129)		(73)		(328)		(374)
Gain on for-sale condominiums, net of marketing and administrative costs	646		1,108		(4,162)		2,526
Net operating income from real estate assets sold or held for sale	(720)		(3,404)		(3,572)		(16,161)
Net operating income	$	377,678	$	406,585	$	1,201,966	$	1,200,119

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Rental income from real estate assets sold or held for sale	$	1,449	$	6,094	$	6,159	$	28,116
Operating expenses from real estate assets sold or held for sale	(729)		(2,690)		(2,587)		(11,955)
Net operating income from real estate assets sold or held for sale	$	720	$	3,404	$	3,572	$	16,161

The primary performance measure for communities under development or redevelopment depends on the stage of completion.  While under development, management monitors actual construction costs against budgeted costs as well as lease-up pace and rent levels compared to budget.

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The following table provides details of the Company's segment information as of the dates specified (dollars in thousands). The segments are classified based on the individual community's status at January 1, 2020. Segment information for the three and nine months ended September 30, 2020 and 2019 has been adjusted to exclude the real estate assets that were sold from January 1, 2019 through September 30, 2020, or otherwise qualify as held for sale as of September 30, 2020, as described in Note 6, "Real Estate Disposition Activities."

	For the three months ended				For the nine months ended
	Total revenue		NOI		Total revenue		NOI		Gross real estate (1)
For the period ended September 30, 2020
Established
New England	$	78,057	$	49,089	$	239,456	$	155,604	$	2,774,519
Metro NY/NJ	112,507		75,193		344,475		236,138		4,303,971
Mid-Atlantic	84,038		56,190		259,086		180,886		3,505,272
Pacific Northwest	27,125		18,578		83,539		59,042		994,486
Northern California	95,234		69,752		300,856		228,047		3,274,052
Southern California	105,964		71,125		327,865		228,181		4,152,209
Expansion Markets	5,633		3,015		17,424		10,004		320,944
Total Established	508,558		342,942		1,572,701		1,097,902		19,325,453
Other Stabilized	35,080		22,834		105,246		69,438		1,595,739
Development / Redevelopment	21,300		11,902		58,403		34,626		2,569,413
Land Held for Development	N/A		N/A		N/A		N/A		43,494
Non-allocated (2)	1,017		N/A		2,950		N/A		407,821
Total	$	565,955	$	377,678	$	1,739,300	$	1,201,966	$	23,941,920
For the period ended September 30, 2019
Established
New England	$	81,924	$	54,244	$	240,178	$	158,801	$	2,742,940
Metro NY/NJ	119,857		82,602		355,990		248,530		4,284,077
Mid-Atlantic	88,829		62,430		262,806		185,431		3,475,939
Pacific Northwest	28,589		20,684		84,615		61,498		988,952
Northern California	103,511		79,076		307,207		235,884		3,258,942
Southern California	113,202		79,357		337,488		239,452		4,119,312
Expansion Markets	5,825		3,261		17,607		10,177		320,114
Total Established	541,737		381,654		1,605,891		1,139,773		19,190,276
Other Stabilized	30,199		20,125		77,749		52,091		1,404,506
Development / Redevelopment	8,352		4,806		15,820		8,255		1,824,012
Land Held for Development	N/A		N/A		N/A		N/A		20,095
Non-allocated (2)	1,231		N/A		3,484		N/A		552,179
Total	$	581,519	$	406,585	$	1,702,944	$	1,200,119	$	22,991,068

__________________________________

(1)Does not include gross real estate either sold or classified as held for sale subsequent to September 30, 2019 of $131,790.

(2)Revenue represents third-party management, accounting, and developer fees and miscellaneous income which are not allocated to a reportable segment. Gross real estate includes the for-sale residential condominiums at The Park Loggia, as discussed in Note 6, "Real Estate Disposition Activities."

9.  Stock-Based Compensation Plans

As part of its long-term compensation plans, the Company has granted stock options, performance awards and restricted stock.

Information with respect to performance awards granted is as follows:

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	Performance awards	Weighted average grant date fair value per award
Outstanding at December 31, 2019	253,432	$	176.27
Granted (1)	76,458	238.72
Change in awards based on performance (2)	18,112	177.26
Converted to restricted stock	(96,317)	177.26
Forfeited	(10,488)	188.52
Outstanding at September 30, 2020	241,197	$	195.22

__________________________________

(1)The amount of restricted stock that ultimately may be earned is based on the total shareholder return metrics related to the Company's common stock for 38,461 performance awards and financial metrics related to operating performance, net asset value and leverage metrics of the Company for 37,997 performance awards.

(2)Represents the change in the number of performance awards earned based on performance achievement for the performance period.

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted in 2020 for which achievement will be determined by using total shareholder return measures. The assumptions used are as follows:

	2020
Dividend yield	2.8%
Estimated volatility over the life of the plan (1)	11.1% - 15.5%
Risk free rate	1.45% - 1.62%
Estimated performance award value based on total shareholder return measure	$254.72

__________________________________

(1)Estimated volatility of the life of the plan is using 50% historical volatility and 50% implied volatility.

For the portion of the performance awards granted in 2020 for which achievement will be determined by using financial metrics, the compensation cost was based on a weighted average grant date value of $225.30, and the Company's estimate of corporate achievement for the financial metrics.

Information with respect to restricted stock granted is as follows:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2019	148,326	$	181.29	163,111
Granted - restricted stock shares	69,109	221.18		96,317
Vested - restricted stock shares	(77,761)	178.32		(109,758)
Forfeited	(5,637)	195.89		(1,784)
Outstanding at September 30, 2020	134,037	$	202.96	147,886

Total employee stock-based compensation cost recognized in income was $17,385,000 and $20,291,000 for the nine months ended September 30, 2020 and 2019, respectively, and total capitalized stock-based compensation cost was $8,291,000 and $7,622,000 for the nine months ended September 30, 2020 and 2019, respectively. At September 30, 2020, there was a total unrecognized compensation cost of $30,677,000 for unvested restricted stock and performance awards, which does not include forfeitures, and is expected to be recognized over a weighted average period of 1.9 years.

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10.  Related Party Arrangements

Unconsolidated Entities

The Company manages unconsolidated real estate entities for which it receives asset management, property management, development and redevelopment fee revenue. From these entities, the Company earned fees of $1,017,000 and $1,231,000 for the three months ended September 30, 2020 and 2019, respectively and $2,950,000 and $3,484,000 for the nine months ended September 30, 2020 and 2019, respectively. In addition, the Company had outstanding receivables associated with its property and construction management role of $5,241,000 and $3,924,000 as of September 30, 2020 and December 31, 2019, respectively.

Director Compensation

The Company recorded non-employee director compensation expense relating to restricted stock grants and deferred stock units in the amount of $459,000 and $458,000 in the three months ended September 30, 2020 and 2019, respectively, and $1,360,000 and $1,288,000 in the nine months ended September 30, 2020 and 2019, respectively, as a component of general and administrative expense. Deferred compensation relating to these restricted stock grants and deferred stock units to non-employee directors was $996,000 and $594,000 on September 30, 2020 and December 31, 2019, respectively, reported as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

11.  Fair Value

Financial Instruments Carried at Fair Value

Derivative Financial Instruments

The Company uses interest rate swap and interest rate cap agreements to manage its interest rate risk. These instruments are carried at fair value in the Company's financial statements. In adjusting the fair value of its derivative contracts for the effect of counterparty nonperformance risk, the Company has considered the impact of its net position with a given counterparty, as well as any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. The Company minimizes its credit risk on these transactions by dealing with major, creditworthy financial institutions which have an A or better credit rating by the Standard & Poor's Ratings Group. As part of its on-going control procedures, the Company monitors the credit ratings of counterparties and the exposure of the Company to any single entity, thus reducing credit risk concentration. The Company believes the likelihood of realizing losses from counterparty nonperformance is remote. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, such as interest rate, term to maturity and volatility, the credit valuation adjustments associated with its derivatives use Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. As of September 30, 2020, the Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined it is not significant. As a result, the Company has determined that its derivative valuations are classified in Level 2 of the fair value hierarchy.

The following table summarizes the consolidated derivative positions at September 30, 2020 (dollars in thousands):

	Non-designated Hedges Interest Rate Caps			Cash Flow Hedges Interest Rate Swaps
Notional balance	$	440,097		$	150,000
Weighted average interest rate (1)	1.7		%	N/A
Weighted average swapped/capped interest rate	6.5		%	0.7		%
Earliest maturity date	January 2021			May 2021
Latest maturity date	November 2021			May 2021

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate cap.

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The following activity occurred during the nine months ended September 30, 2020:

•The Company settled an aggregate of $600,000,000 of forward interest rate swap agreements, making aggregate payments of $25,135,000. Of the positions settled by the Company, $250,000,000 were forward interest swaps that the Company had entered into during 2020.

◦In conjunction with the issuance of the Company's $700,000,000 unsecured notes due 2030 in February 2020, the Company settled $350,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $20,314,000.

◦In conjunction with the issuance of the Company's $600,000,000 unsecured notes due 2031 in May 2020, the Company settled $250,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $4,821,000.

The Company has deferred these amounts in accumulated other comprehensive loss on the accompanying Condensed Consolidated Balance Sheets, and is recognizing the impact as a component of interest expense, net, over the term of the respective hedged debt.

•The Company entered into an additional $150,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability of interest rates on a portion of the Company's expected debt issuance activity in 2021.

At the maturity of the remaining outstanding swap agreements, the Company expects to cash settle the contracts and either pay or receive cash for the then current fair value. Assuming that the Company issues the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

The Company had three derivatives designated as cash flow hedges and five derivatives not designated as hedges at September 30, 2020. Fair value changes for derivatives not in qualifying hedge relationships for the three and nine months ended September 30, 2020 and 2019 were not material. During the nine months ended September 30, 2020, the Company deferred $17,731,000 of losses for cash flow hedges reported as a component of accumulated other comprehensive loss.

The following table summarizes the deferred losses reclassified from accumulated other comprehensive loss as a component of interest expense, net (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Cash flow hedge losses reclassified to earnings	$	2,367	$	1,746	$	6,617	$	4,825

The Company anticipates reclassifying approximately $9,467,000 of net hedging losses from accumulated other comprehensive loss into earnings within the next 12 months as an offset to the hedged item during this period. The Company did not have any derivatives designated as fair value hedges as of September 30, 2020 and 2019.

Redeemable Noncontrolling Interests

The Company is party to investments in two consolidated ventures, which contain redemption options (the "Puts") that allow joint venture partners of the Company to require the Company to purchase their interests in the investment at a guaranteed minimum amount. The Puts are payable in cash. The Company determines the fair value of the Puts based on unobservable inputs considering the assumptions that market participants would make in pricing the obligations, applying a guaranteed rate of return to the joint venture partners' net capital contribution balances as of period end. Given the significance of the unobservable inputs, the valuations are classified in Level 3 of the fair value hierarchy.

The Company issued units of limited partnership interest in a DownREIT which provides the DownREIT limited partners the ability to present all or some of their units for redemption for cash as determined by the partnership agreement. Under the DownREIT agreement, for each limited partnership unit, the limited partner is entitled to receive cash in the amount equal to the fair value of the Company's common stock on or about the date of redemption. In lieu of cash redemption, the Company may elect to exchange such units for an equal number of shares of the Company's common stock. The limited partnership units in the DownREIT are valued using the market price of the Company's common stock, a Level 1 price under the fair value hierarchy.

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Financial Instruments Not Carried at Fair Value

Cash and Cash Equivalents

Cash and cash equivalent balances are held with various financial institutions within accounts designed to preserve principal. The Company monitors credit ratings of these financial institutions and the concentration of cash and cash equivalent balances with any one financial institution and believes the likelihood of realizing material losses related to cash and cash equivalent balances is remote. Cash and cash equivalents are carried at their face amounts, which reasonably approximate their fair values and are Level 1 within the fair value hierarchy.

Other Financial Instruments

Rents and other receivables and prepaid expenses, accounts and construction payable and accrued expenses and other liabilities are carried at their face amounts, which reasonably approximate their fair values.

The Company values its unsecured notes using quoted market prices, a Level 1 price within the fair value hierarchy. The Company values its notes payable and outstanding amounts under the Credit Facility and Term Loans using a discounted cash flow analysis on the expected cash flows of each instrument. This analysis reflects the contractual terms of the instrument, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The process also considers credit valuation adjustments to appropriately reflect the Company's nonperformance risk. The Company has concluded that the value of its notes payable and amounts outstanding under its Credit Facility and Term Loans are Level 2 prices as the majority of the inputs used to value its positions fall within Level 2 of the fair value hierarchy.

Financial Instruments Measured/Disclosed at Fair Value on a Recurring Basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	9/30/2020
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	1,413	$	—	$	1,413	$	—
DownREIT units	(1,120)		(1,120)		—		—
Indebtedness
Fixed rate unsecured notes	(7,269,443)		(7,269,443)		—		—
Secured notes and variable rate unsecured indebtedness	(1,073,689)		—		(1,073,689)		—
Total	$	(8,342,839)	$	(7,270,563)	$	(1,072,276)	$	—

	12/31/2019
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	388	$	—	$	388	$	—
Interest Rate Swaps - Liabilities	(6,379)		—		(6,379)		—
Puts	(206)		—		—		(206)
DownREIT units	(1,573)		(1,573)		—		—
Indebtedness
Fixed rate unsecured notes	(6,197,771)		(6,197,771)		—		—
Secured notes and variable rate unsecured indebtedness	(1,398,147)		—		(1,398,147)		—
Total	$	(7,603,688)	$	(6,199,344)	$	(1,404,138)	$	(206)

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12.  Subsequent Events

The Company has evaluated subsequent events through the date on which this Form 10-Q was filed, the date on which these financial statements were issued, and identified the items below for discussion.

In October 2020, the Company repurchased 219,186 shares of common stock at an average price of $148.17 per share.

In October 2020, the Company entered into agreements to sell three wholly-owned operating communities containing an aggregate of 858 apartment homes and net real estate of $126,397,000 as of September 30, 2020, resulting in the communities qualifying as held for sale subsequent to September 30, 2020. The Company expects to complete the sales of these communities in the fourth quarter of 2020.

In October 2020, the Company acquired three parcels of land for development for an aggregate investment of $59,145,000.

As of November 4, 2020, the Company has $183,000,000 outstanding under its Credit Facility.

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ITEM 2.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is intended to help provide an understanding of our business, financial condition and results of operations. This MD&A should be read in conjunction with our Condensed Consolidated Financial Statements and the accompanying Notes to Condensed Consolidated Financial Statements included elsewhere in this report. This report, including the following MD&A, contains forward-looking statements regarding future events or trends that should be read in conjunction with the factors described under "Forward-Looking Statements" included in this report. Actual results or developments could differ materially from those projected in such statements as a result of the factors described under "Forward-Looking Statements" as well as the risk factors described in Part I, Item 1A. "Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2019 (the "Form 10-K") and in Part II, Item 1A. "Risk Factors" in this report.

Capitalized terms used without definition have the meanings provided elsewhere in this Form 10-Q.

Executive Overview

Business Description

We develop, redevelop, acquire, own and operate multifamily apartment communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in our expansion markets in Southeast Florida and Denver, Colorado (the "Expansion Markets"). We focus on leading metropolitan areas that we believe historically have been characterized by growing employment in high wage sectors of the economy, higher cost of home ownership and a diverse and vibrant quality of life. We believe these market characteristics have offered and will continue in the future to offer the opportunity for superior risk-adjusted returns over the long-term on apartment community investments relative to other markets that do not have these characteristics. We seek to create long-term shareholder value by accessing capital on cost effective terms; deploying that capital to develop, redevelop and acquire apartment communities in our selected markets; operating apartment communities; and selling communities when they no longer meet our long-term investment strategy or when pricing is attractive.

Our strategic vision is to be the leading apartment company in select U.S. markets, providing a range of distinctive living experiences that customers value. We pursue this vision by targeting what we believe are among the best markets and submarkets, leveraging our strategic capabilities in market research and consumer insight and being disciplined in our capital allocation and balance sheet management. Our communities are predominately upscale and generally command among the highest rents in their markets. However, we also pursue the ownership and operation of apartment communities that target a variety of customer segments and price points, consistent with our goal of offering a broad range of products and services. We regularly evaluate the allocation of our investments by the amount of invested capital and by product type within our individual markets.

Third Quarter 2020 Highlights

•Net income attributable to common stockholders for the three months ended September 30, 2020 was $147,703,000, a decrease of $131,974,000, or 47.2%, as compared to the prior year period. The decrease is primarily due to a decrease in gains of real estate dispositions, a decrease in NOI from Established Communities and increases in depreciation expense and interest expense in the current year period. These amounts are partially offset by an increase in NOI from Development and Other Stabilized Communities in the current year period.

•Established Communities NOI for the three months ended September 30, 2020 was $342,942,000, a decrease of $38,712,000, or 10.1%, from the prior year period. The decrease was due to a decrease in rental revenues of $32,779,000, or 6.1%, from the prior year period, of which $12,474,000 was due to uncollectible lease revenue, $11,225,000 of which was for residential and $1,249,000 was for commercial, as well as an increase in property operating expenses of $5,532,000, or 3.5%, from the prior year period.

•We repurchased 912,733 shares of our common stock at an average price of $150.58.

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COVID-19 Pandemic

The Company has taken various actions in response to the COVID-19 pandemic to adjust our business operations and to address the needs of our residents and associates. We are committed to the health and safety of our residents and associates. During the nine months ended September 30, 2020, we have adopted varying measures to help mitigate the financial impact arising from the national emergency on our residents, including providing flexible lease renewal options, creating payment plans for residents who are unable to pay their rent because they are impacted by this national emergency and, in certain jurisdictions, waiving late fees and certain other customary fees associated with apartment rentals. To the extent still implemented, we may discontinue these measures at any time except where required by law.

The ultimate impact on our consolidated results of operations from COVID-19 for 2020 and periods beyond will depend on the duration and severity of the pandemic, the duration and nature of governmental responses to contain the spread of the disease and cushion the impact on consumers, the responses of consumers and businesses with respect to living and work preferences, and how quickly and to what extent normal economic and operating conditions can resume. The current and potential future impacts of the COVID-19 pandemic on our business, particularly on (i) rent levels, collectibility of rents, occupancy and the extent to which we waive certain other customary fees associated with our apartment rental business and (ii) development timing and volume, mean that our historical results of operations and financial condition are not indicative of future results of operations and financial condition. Because those factors are beyond our control and knowledge, the adverse impact of the pandemic on our results of operations for 2020 and beyond cannot be reasonably estimated, and could be material.

The COVID-19 pandemic has impacted our rental operations including (i) revenues and expenses, as well as (ii) our collections and associated outstanding receivables. For further discussion of the impact on revenues and expenses see "Results of Operations." The following table presents the percentage of (i) apartment base rent charged to residents and (ii) other rentable items, including parking and storage rent, along with pet and other fees in accordance with residential leases, that has been collected ("Collected Residential Revenue") for Established Communities for the three months ended June 30, 2020 and three months ended September 30, 2020 (unaudited). Collected Residential Revenue excludes transactional and other fees.

	At quarter end (1)(2)	At October 31, 2020 (3)(4)
Q2 2020	95.5%	97.7%
Q3 2020	95.2%	96.2%

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(1)Excludes commercial revenue, which was 1.4% of our 2019 Established Communities' total revenue. We collected 56.5% and 66.5% of billed commercial revenue for Q2 2020 as of June 30, 2020 and Q3 2020 as of September 30, 2020, respectively.

(2)The Collected Residential Revenue percentage as of June 30, 2020 for Q2 2020 and September 30, 2020 for Q3 2020, respectively.

(3)The percentage of Collected Residential Revenue as of October 31, 2020 for Q2 2020 and Q3 2020.

(4)Collected Residential Revenue for October 2020 as of October 31, 2020 was 93.2%.

The collection rates are based on individual resident and commercial tenant activity as reflected in our property management systems and are presented to provide information about collections trends during the COVID-19 pandemic. Prior to the COVID-19 pandemic, the collections information provided was not routinely produced for internal use by senior management or publicly disclosed by the Company and is a result of analysis that is not subject to internal controls over financial reporting. This information is not prepared in accordance with GAAP, does not reflect GAAP revenue or cash flow metrics and may be subject to adjustment in preparing GAAP revenue and cash flow metrics. Additionally, this information should not be interpreted as predicting the Company’s financial performance, results of operations or liquidity for any period. At September 30, 2020, our outstanding rent receivable balance for residential and commercial tenants, net of reserves, increased to $19,458,000 from $11,594,000 at December 31, 2019. Of this amount at September 30, 2020, we had receivables under payment plans, net of reserves, of $4,848,000.

Third Quarter 2020 Development Highlights

At September 30, 2020, we owned or held a direct or indirect interest in:

•17 wholly-owned communities under construction, which are expected to contain 5,581 apartment homes with a projected total capitalized cost of $2,115,000,000, and two unconsolidated communities under construction, which are expected to contain 803 apartment homes with a projected total capitalized cost of $386,000,000.

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•Land or rights to land on which we expect to develop an additional 27 apartment communities that, if developed as expected, will contain 9,320 apartment homes and will be developed for an aggregate total capitalized cost of $3,907,000,000.

In response to the COVID-19 pandemic, we have not started the construction of any new consolidated Development Communities through September 30, 2020. We will continue to evaluate future starts on an individual basis, based on evolving economic and market conditions. In addition, we have substantially reduced our planned redevelopment and other non-essential capex investment. We expect to be able to meet our reasonably foreseeable liquidity needs, as they arise, through a combination of one or more of the following sources: existing cash on hand; operating cash flows; borrowings under our Credit Facility; secured debt; the issuance of corporate securities which could include unsecured debt, preferred equity and/or common equity; the sale of apartment communities; or through the formation of joint ventures. See the discussion under "Liquidity and Capital Resources." During the three months ended September 30, 2020, we entered into a joint venture to develop AVA Arts District, as discussed under "Unconsolidated Real Estate Investments and Off-Balance Sheet Arrangements."

During the three months ended September 30, 2020, we sold one wholly-owned operating community containing 109 apartment homes for $54,000,000, and our gain in accordance with GAAP was $31,603,000. In addition, we sold seven residential condominiums at The Park Loggia, for gross proceeds of $15,699,000, resulting in a gain in accordance with GAAP of $727,000.

Communities Overview

Our real estate investments consist primarily of current operating apartment communities, communities in various stages of development ("Development Communities") and Development Rights (as defined below). Our current operating communities are further classified as Established Communities, Other Stabilized Communities, Lease-Up Communities, Redevelopment Communities and Unconsolidated Communities. While we generally establish the classification of communities on an annual basis, we update the classification of communities during the calendar year to the extent that our plans with regard to the disposition or redevelopment of a community change. The following is a description of each category:

Current Communities are categorized as Established, Other Stabilized, Lease-Up, Redevelopment, or Unconsolidated according to the following attributes:

•Established Communities (also known as Same Store Communities) are consolidated communities in the markets where we have a significant presence (New England, New York/New Jersey, Mid-Atlantic, Pacific Northwest, Northern and Southern California and our expansion markets of Southeast Florida and Denver, Colorado), and where a comparison of operating results from the prior year to the current year is meaningful, as these communities were owned and had stabilized occupancy as of the beginning of the respective prior year period. For the nine month periods ended September 30, 2020 and 2019, Established Communities are communities that are consolidated for financial reporting purposes, had stabilized occupancy as of January 1, 2019, are not conducting or are not probable to conduct substantial redevelopment activities and are not held for sale as of September 30, 2020 or probable for disposition to unrelated third parties within the current year. A community is considered to have stabilized occupancy at the earlier of (i) attainment of 90% physical occupancy or (ii) the one-year anniversary of completion of development or redevelopment.

•Other Stabilized Communities are all other completed consolidated communities that have stabilized occupancy, as defined above, as of January 1, 2020, or which were acquired subsequent to January 1, 2019. Other Stabilized Communities excludes communities that are conducting or are probable to conduct substantial redevelopment activities within the current year, as defined below.

•Lease-Up Communities are consolidated communities where construction has been complete for less than one year and that do not have stabilized occupancy.

•Redevelopment Communities are consolidated communities where substantial redevelopment is in progress or is probable to begin during the current year. Redevelopment is considered substantial when (i) capital invested during the reconstruction effort is expected to exceed the lesser of $5,000,000 or 10% of the community's pre-redevelopment gross cost basis and (ii) physical occupancy is below or is expected to be below 90% during, or as a result of, the redevelopment activity.

•Unconsolidated Communities are communities that we have an indirect ownership interest in through our investment interest in an unconsolidated joint venture.

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Development Communities are communities that are under construction and for which a certificate or certificates of occupancy for the entire community have not been received. These communities may be partially complete and operating.

Unconsolidated Development Communities are communities that are under construction and for which a certificate or certificates of occupancy for the entire community have not been received that we have an indirect ownership interest in through our investment interest in an unconsolidated joint venture. These communities may be partially complete and operating.

Development Rights are development opportunities in the early phase of the development process where we either have an option to acquire land or enter into a leasehold interest, where we are the buyer under a long-term conditional contract to purchase land, where we control the land through a ground lease or own land to develop a new community, or where we are the designated developer in a public-private partnership. We capitalize related pre-development costs incurred in pursuit of new developments for which we currently believe future development is probable.

We currently lease our corporate headquarters located in Arlington, Virginia, as well as our other regional and administrative offices under operating leases.

As of September 30, 2020, communities that we owned or held a direct or indirect interest in were classified as follows:

	Number of communities	Number of apartment homes
Current Communities
Established Communities:
New England	40	10,055
Metro NY/NJ	46	13,159
Mid-Atlantic	38	13,494
Pacific Northwest	16	4,116
Northern California	40	11,362
Southern California	56	16,379
Expansion Markets	3	912
Total Established	239	69,477
Other Stabilized Communities:
New England	3	705
Metro NY/NJ	2	854
Mid-Atlantic	1	151
Pacific Northwest	2	745
Northern California	1	873
Southern California	2	681
Expansion Markets	5	1,388
Total Other Stabilized	16	5,397
Lease-Up Communities	7	1,955
Redevelopment Communities	1	344
Unconsolidated Communities	12	3,119
Total Current Communities	275	80,292
Development Communities	17	5,581
Unconsolidated Development Communities	2	803
Total Communities	294	86,676
Development Rights	27	9,320

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Results of Operations

As discussed above under “Executive Overview - COVID-19 Pandemic” and elsewhere in this report, the COVID-19 pandemic has affected our business, and may continue to do so. See also Part II, Item 1A, “Risk Factors.” Our year-over-year operating performance is primarily affected by both overall and individual geographic market conditions and apartment fundamentals and is reflected in changes in NOI of our Established Communities; NOI derived from acquisitions, development completions and development under construction and in lease-up; the loss of NOI related to disposed communities; and capital market and financing activity. A comparison of our operating results for the three and nine months ended September 30, 2020 and 2019 follows (unaudited, dollars in thousands).

	For the three months ended								For the nine months ended
	9/30/2020		9/30/2019		$ Change		% Change		9/30/2020		9/30/2019		$ Change		% Change
Revenue:
Rental and other income	$	566,387	$	586,382	$	(19,995)	(3.4)	%	$	1,742,509	$	1,727,576	$	14,933	0.9	%
Management, development and other fees	1,017		1,231		(214)		(17.4)	%	2,950		3,484		(534)		(15.3)	%
Total revenue	567,404		587,613		(20,209)		(3.4)	%	1,745,459		1,731,060		14,399		0.8	%
Expenses:
Direct property operating expenses, excluding property taxes	119,064		112,003		7,061		6.3	%	333,998		323,368		10,630		3.3	%
Property taxes	68,934		64,374		4,560		7.1	%	202,973		187,890		15,083		8.0	%
Total community operating expenses	187,998		176,377		11,621		6.6	%	536,971		511,258		25,713		5.0	%
Corporate-level property management and other indirect operating expenses	24,845		21,442		3,403		15.9	%	72,993		66,457		6,536		9.8	%
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		392		224.0	%	4,289		2,562		1,727		67.4	%
Interest expense, net	53,249		51,493		1,756		3.4	%	162,562		149,395		13,167		8.8	%
(Gain) loss on extinguishment of debt, net	(105)		93		(198)		N/A (1)		9,333		602		8,731		1,450.3	%
Depreciation expense	175,348		165,463		9,885		6.0	%	529,508		490,213		39,295		8.0	%
General and administrative expense	13,985		12,769		1,216		9.5	%	46,878		45,440		1,438		3.2	%
Total other expenses	267,889		251,435		16,454		6.5	%	825,563		754,669		70,894		9.4	%
Equity in income of unconsolidated real estate entities	5,083		1,643		3,440		209.4	%	6,770		780		5,990		767.9	%
Gain on sale of communities	31,607		130,484		(98,877)		(75.8)	%	91,338		165,849		(74,511)		(44.9)	%
Gain on other real estate transactions, net	129		73		56		76.7	%	328		374		(46)		(12.3)	%
Gain on for-sale condominiums, net of marketing and administrative costs	(646)		(1,108)		462		(41.7)	%	4,162		(2,526)		6,688		N/A (1)
Income before income taxes	147,690		290,893		(143,203)		(49.2)	%	485,523		629,610		(144,087)		(22.9)	%
Income tax benefit (expense)	27		(11,184)		11,211		N/A (1)		1,069		(11,178)		12,247		N/A (1)
Net income	147,717		279,709		(131,992)		(47.2)	%	486,592		618,432		(131,840)		(21.3)	%
Net income attributable to noncontrolling interests	(14)		(32)		18		(56.3)	%	(90)		(108)		18		(16.7)	%
Net income attributable to common stockholders	$	147,703	$	279,677	$	(131,974)	(47.2)	%	$	486,502	$	618,324	$	(131,822)	(21.3)	%

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(1)Percent change is not meaningful.

Net income attributable to common stockholders decreased $131,974,000, or 47.2%, to $147,703,000 for the three months ended September 30, 2020 and $131,822,000, or 21.3%, to $486,502,000 for the nine months ended September 30, 2020 as compared to the prior year periods. The decreases for the three and nine months ended September 30, 2020 are primarily due to decreases in gains on real estate dispositions, decreases in NOI from Established Communities and increases in depreciation expense and interest expense in the current year periods. These amounts are partially offset by increases in NOI from Development and Other Stabilized Communities in the current year periods.

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NOI is considered by management to be an important and appropriate supplemental performance measure to net income because it helps both investors and management to understand the core operations of a community or communities prior to the allocation of any corporate-level or financing-related costs. NOI reflects the operating performance of a community and allows for an easier comparison of the operating performance of individual assets or groups of assets. In addition, because prospective buyers of real estate have different financing and overhead structures, with varying marginal impact to overhead as a result of acquiring real estate, NOI is considered by many in the real estate industry to be a useful measure for determining the value of a real estate asset or group of assets. We define NOI as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, (gain) loss on extinguishment of debt, net, general and administrative expense, equity in income of unconsolidated real estate entities, depreciation expense, corporate income tax expense, casualty and impairment (gain) loss, net, gain on sale of communities, (gain) loss on other real estate transactions, net, gain on for-sale condominiums, net of marketing and administrative costs and net operating income from real estate assets sold or held for sale.

NOI does not represent cash generated from operating activities in accordance with GAAP, and NOI should not be considered an alternative to net income as an indication of our performance. NOI should also not be considered an alternative to net cash flow from operating activities, as determined by GAAP, as a measure of liquidity, nor is NOI indicative of cash available to fund cash needs. Reconciliations of NOI for the three and nine months ended September 30, 2020 and 2019 to net income for each period are as follows (unaudited, dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net income	$	147,717	$	279,709	$	486,592	$	618,432
Indirect operating expenses, net of corporate income	23,837		20,195		70,043		62,935
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		4,289		2,562
Interest expense, net	53,249		51,493		162,562		149,395
(Gain) loss on extinguishment of debt, net	(105)		93		9,333		602
General and administrative expense	13,985		12,769		46,878		45,440
Equity in income of unconsolidated real estate entities	(5,083)		(1,643)		(6,770)		(780)
Depreciation expense	175,348		165,463		529,508		490,213
Income tax (benefit) expense	(27)		11,184		(1,069)		11,178
Gain on sale of real estate assets	(31,607)		(130,484)		(91,338)		(165,849)
Gain on other real estate transactions, net	(129)		(73)		(328)		(374)
Gain on for-sale condominiums, net of marketing and administrative costs	646		1,108		(4,162)		2,526
Net operating income from real estate assets sold or held for sale	(720)		(3,404)		(3,572)		(16,161)
Net operating income	$	377,678	$	406,585	$	1,201,966	$	1,200,119

The NOI changes for the three and nine months ended September 30, 2020, compared to the prior year periods, consist of changes in the following categories (unaudited, dollars in thousands):

	For the three months ended		For the nine months ended
	9/30/2020		9/30/2019
Established Communities	$	(38,712)	$	(41,871)
Other Stabilized Communities	2,709		17,347
Development / Redevelopment	7,096		26,371
Total	$	(28,907)	$	1,847

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Rental and other income decreased $19,995,000, or 3.4%, and increased $14,933,000, or 0.9%, for the three and nine months ended September 30, 2020 compared to the prior year periods. The decrease for the three months ended September 30, 2020 is primarily due to an increase of $15,373,000 in uncollectible lease revenue as a result of the COVID-19 pandemic, of which $13,101,000 relates to residential and $2,272,000 relates to commercial, as well as decreased occupancy and rental rates at our Established Communities, partially offset by additional rental income generated from development completions, development under construction and in lease-up and acquired operating communities. The increase for the nine months ended September 30, 2020 is due to additional rental income generated from development completions, development under construction and in lease-up and acquired operating communities, partially offset by an increase of $33,532,000 in uncollectible lease revenue as a result of the COVID-19 pandemic, of which $26,483,000 relates to residential and $7,049,000 relates to commercial, and decreased occupancy and rental rates at our Established Communities.

As discussed elsewhere in this report, the COVID-19 impact and related economic, regulatory and operating impacts are likely to continue to adversely affect our rental revenue, and comparisons to prior year periods, during the COVID-19 pandemic. If job losses in our markets and nationally continue, this would likely continue to decrease our ability to maintain and/or increase rents and/or maintain occupancy at our historical levels. Deteriorating financial conditions among our residents and commercial tenants, as well as regulations that limit our ability to quickly evict residents and tenants, may continue to result in higher than normal uncollectible lease revenue. The pandemic may also continue to depress demand among consumers for our apartments for a variety of other reasons, including the following: consumers whose income has declined, who are working from home remotely or who cannot freely access neighborhood amenities like restaurants, gyms and entertainment venues, may decide during the pandemic to live in markets or submarkets that are less costly than ours; low interest rates that are caused by government response to the pandemic may encourage consumers who would otherwise rent to seek out home ownership; and various sources of demand for our apartments (e.g., students, corporate apartment homes, seasonal job-related demand as in the entertainment industry) may remain below pre-pandemic levels if institutions of higher learning look to continue online education or business activity and travel remain at lower levels than before the pandemic.

Consolidated Communities — The weighted average number of occupied apartment homes increased to 78,727 apartment homes for the nine months ended September 30, 2020, compared to 72,599 homes for the prior year period. The weighted average monthly revenue per occupied apartment home decreased to $2,456 for the nine months ended September 30, 2020 compared to $2,640 in the prior year period.

For Established Communities, rental revenue decreased $32,779,000, or 6.1%, and $32,404,000, or 2.0%, for the three and nine months ended September 30, 2020, compared to the prior year periods. Residential and commercial uncollectible lease revenue contributed an aggregate of $12,474,000 and $27,655,000 to the changes in rental revenue for the three and nine months ended September 30, 2020, respectively, compared to the prior year periods.

The following table presents the change in rental revenue, including the attribution of the change between rental rates and Economic Occupancy, for Established Communities for the nine months ended September 30, 2020 (unaudited).

	For the nine months ended September 30, 2020
	Rental revenue (000s)										Average rental rates							Economic Occupancy (1)
					$ Change			% Change							% Change					% Change
	2020		2019			2020 to 2019			2020 to 2019		2020		2019			2020 to 2019		2020		2019		2020 to 2019
New England	$	239,623	$	240,331		$	(708)		(0.3)	%	$	2,808	$	2,785		0.8	%	94.3	%	95.4	%	(1.1)	%
Metro NY/NJ	344,191		355,474			(11,283)			(3.2)	%	3,070		3,125			(1.8)	%	94.7	%	96.1	%	(1.4)	%
Mid-Atlantic	258,830		262,408			(3,578)			(1.4)	%	2,260		2,248			0.5	%	94.3	%	96.2	%	(1.9)	%
Pacific Northwest	83,224		84,287			(1,063)			(1.3)	%	2,351		2,367			(0.7)	%	95.6	%	96.2	%	(0.6)	%
Northern California	300,454		306,565			(6,111)			(2.0)	%	3,107		3,118			(0.4)	%	94.6	%	96.2	%	(1.6)	%
Southern California	327,580		337,057			(9,477)			(2.8)	%	2,327		2,391			(2.7)	%	95.5	%	95.6	%	(0.1)	%
Expansion Markets	17,423		17,607			(184)			(1.0)	%	2,273		2,268			0.2	%	93.4	%	94.6	%	(1.2)	%
Total Established	$	1,571,325	$	1,603,729		$	(32,404)		(2.0)	%	$	2,652	$	2,674		(0.8)	%	94.7	%	95.9	%	(1.2)	%

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(1)     Economic occupancy takes into account the fact that apartment homes of different sizes and locations within a community have different economic impacts on a community's gross revenue. Economic occupancy is defined as gross potential revenue less vacancy loss, as a percentage of gross potential revenue. Gross potential revenue is determined by valuing occupied homes at leased rates and vacant homes at market rents. Vacancy loss is determined by valuing vacant units at current market rents.

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The following table presents the change in rental revenue for Established Communities for the three and nine months ended September 30, 2020, compared to the prior year periods (unaudited):

	For the three months ended		For the nine months ended
	9/30/2020		9/30/2020
Residential rental revenue
Lease rates	(0.1)	%	1.5	%
Concessions and other discounts	(0.9)	%	(0.4)	%
Economic occupancy	(2.7)	%	(1.2)	%
Other rental revenue	—	%	(0.2)	%
Uncollectible lease revenue	(2.1)	%	(1.4)	%
Total residential rental revenue	(5.8)	%	(1.7)	%
Commercial rental revenue (1)	(0.3)	%	(0.3)	%
Total Established Communities change in rental revenue	(6.1)	%	(2.0)	%

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(1)     Consists primarily of the impact of uncollectible commercial lease revenue.

Direct property operating expenses, excluding property taxes, increased $7,061,000, or 6.3%, and $10,630,000, or 3.3%, for the three and nine months ended September 30, 2020, compared to the prior year periods. The increase for the three and nine months ended September 30, 2020 is primarily due to the addition of newly developed and acquired apartment communities. The increase for the three months ended September 30, 2020 is also partially due to the timing of repairs and maintenance projects previously delayed due to the COVID-19 pandemic.

For Established Communities, direct property operating expenses, excluding property taxes, increased $4,034,000, or 4.0%, for the three months ended September 30, 2020 compared to the prior year period. The increase for the three months ended September 30, 2020 is primarily due to the timing of repairs and maintenance projects previously delayed due to the COVID-19 pandemic. The timing and amount expected to be spent for repairs and maintenance projects in future periods depends on various factors, including the duration and severity of the pandemic

Property taxes increased $4,560,000, or 7.1%, and $15,083,000, or 8.0%, for the three and nine months ended September 30, 2020, compared to the prior year periods. The increases for the three and nine months ended September 30, 2020 are primarily due to the addition of newly developed and acquired apartment communities and increased assessments for the Company's stabilized portfolio, partially offset by decreased property taxes from dispositions.

For Established Communities, property taxes increased $1,498,000, or 2.5%, and $6,809,000, or 4.0%, for the three and nine months ended September 30, 2020, compared to the prior year periods. The increases for the three and nine months ended September 30, 2020 are primarily due to increased assessments and rates across the portfolio in the current year periods. The increase for the nine months ended September 30, 2020 is also due to successful appeals in the prior year period in excess of those in the current year period. For communities in California, property tax changes are determined by the change in the California Consumer Price Index, with increases limited by law (Proposition 13). We evaluate property tax increases internally and also engage third-party consultants to assist in our evaluations. We appeal property tax increases when appropriate.

Corporate-level property management and other indirect operating expenses increased $3,403,000, or 15.9%, and $6,536,000, or 9.8%, for the three and nine months ended September 30, 2020, compared to the prior year periods, primarily due to increased compensation related costs and advocacy contributions related to California Proposition 21 in the current year periods. Proposition 21 is a California referendum on the November 3, 2020, ballot but, due to mail in ballots, we may not know the final result of the referendum as of the date of filing of this report. If passed, the referendum would, except for exemptions not relevant to us, allow local California governments to enact rent control on housing that was first occupied over 15 years ago (a rolling 15 year measure) and eliminate the current requirement for vacancy decontrol (which allows re-setting of rents to market) that currently exists for rent controlled units built before 1995. Under Proposition 21, landlords would be permitted under locally enacted rent control to increase the rental rates on a vacated unit by no more than 15% over the subsequent three years in addition to any other increase allowed under a local ordinance. If the referendum passes, rent control that is set by local governments would be independent of renters rights under California's Tenant Protection Act of 2019, which for communities older than 15 years caps rent increases, other than on vacancy, to the lesser of 5% plus local inflation or 10%.

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Expensed transaction, development and other pursuit costs, net of recoveries primarily reflect costs incurred for development pursuits not yet considered probable for development, as well as the abandonment of Development Rights or abandoned acquisition and disposition pursuits. These costs can be volatile, particularly in periods of increased acquisition pursuit activity, periods of economic downturn or when there is limited access to capital, and therefore may vary significantly from year to year. Expensed acquisition, development and other pursuit costs, net of recoveries, increased $1,727,000, or 67.4%, for the nine months ended September 30, 2020 as compared to the prior year period.

Interest expense, net increased $1,756,000, or 3.4%, and $13,167,000, or 8.8%, for the three and nine months ended September 30, 2020, compared to the prior year periods. This category includes interest costs offset by capitalized interest pertaining to development and redevelopment activity, amortization of premium/discount on debt and interest income. The increases for the three and nine months ended September 30, 2020 were primarily due to a decrease in capitalized interest and an increase in outstanding unsecured indebtedness in the current year periods, partially offset by lower overall effective rates on unsecured indebtedness, and a combination of a decrease in variable rates on, and amounts of, secured indebtedness.

(Gain) loss on extinguishment of debt, net reflects prepayment penalties, the write-off of unamortized deferred financing costs and premiums and discounts from our debt repurchase and retirement activity, and payments to acquire our outstanding debt at amounts above or below the carrying basis of the debt acquired. The loss of $9,333,000 for the nine months ended September 30, 2020 was primarily due to the repayments of unsecured notes during the period.

Depreciation expense increased $9,885,000, or 6.0%, and $39,295,000, or 8.0%, for the three and nine months ended September 30, 2020, compared to the prior year periods, primarily due to the addition of newly developed and acquired apartment communities, partially offset by dispositions.

General and administrative expense increased $1,216,000, or 9.5%, and $1,438,000, or 3.2%, for the three and nine months ended September 30, 2020, compared to the prior year periods, primarily due to legal settlement proceeds related to a former Development Right that were present in the prior year periods, partially offset by a decrease in compensation related expenses, including severance costs.

Equity in income of unconsolidated real estate entities increased $3,440,000, or 209.4%, and $5,990,000, or 767.9%, for the three and nine months ended September 30, 2020, compared to the prior year periods. The increases for the three and nine months ended September 30, 2020 are primarily due to a gain on the sale of a community in the U.S. Fund in the current year periods. The increase for the nine months ended September 30, 2020 is also due to non-cash charges for the depreciation of in-place leases associated with purchase accounting within the NYTA MF Investors LLC unconsolidated venture (the "NYC Joint Venture") in the prior year period.

Gain on sale of communities decreased by $98,877,000 and $74,511,000 for the three and nine months ended September 30, 2020, respectively, compared to the prior year periods. The amount of gain realized in a given period depends on many factors, including the number of communities sold, the size and carrying value of the communities sold and the market conditions in the local area.

Gain on for-sale condominiums, net of marketing and administrative costs is a loss of $646,000 and gain of $4,162,000 for the three and nine months ended September 30, 2020 and a loss of $1,108,000 and $2,526,000 for the three and nine months ended September 30, 2019, and is comprised of the net gain before taxes on the sale of condominiums at The Park Loggia, net of marketing and administrative costs associated with the for-sale condominiums. During the three and nine months ended September 30, 2020, we sold seven and 59 residential condominiums at The Park Loggia, for gross proceeds of $15,699,000 and $182,512,000, resulting in a gain in accordance with GAAP of $727,000 and $8,174,000, respectively. In addition, we incurred $1,373,000 and $1,108,000 for the three months ended September 30, 2020 and 2019, respectively, and $4,012,000 and $2,526,000 for the nine months ended September 30, 2020 and 2019, respectively, in marketing and administrative costs associated with The Park Loggia.

Income tax benefit (expense) for the nine months ended September 30, 2020 of a benefit of $1,069,000 was primarily due to provisions of the Coronavirus Aid, Relief, and Economic Security Act, allowing for further carryback of net operating losses. Income tax expense for the three and nine months ended September 30, 2019 consists of $6,645,000 of income tax expenses for a deferred tax liability for the GAAP to tax basis differences at The Park Loggia, which is being realized as we sell the condominiums, and $4,539,000 related to other activity we undertook through taxable REIT subsidiaries ("TRS") including the disposition of two wholly-owned operating communities and expense for deferred tax liabilities related to our sustainability initiatives.

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Reconciliation of Non-GAAP Financial Measures

Consistent with the definition adopted by the Board of Governors of the National Association of Real Estate Investment Trusts® ("NAREIT"), we calculate Funds from Operations Attributable to Common Stockholders ("FFO") as net income or loss attributable to common stockholders computed in accordance with GAAP, adjusted for:

•gains or losses on sales of previously depreciated operating communities;

•cumulative effect of change in accounting principle;

•impairment write-downs of depreciable real estate assets;

•write-downs of investments in affiliates due to a decrease in the value of depreciable real estate assets held by those affiliates;

•depreciation of real estate assets; and

•similar adjustments for unconsolidated partnerships and joint ventures, including those from a change in control.

FFO and FFO adjusted for non-core items, or "Core FFO," as defined below, are generally considered by management to be appropriate supplemental measures of our operating and financial performance. In calculating FFO, we exclude gains or losses related to dispositions of previously depreciated property and exclude real estate depreciation, which can vary among owners of identical assets in similar condition based on historical cost accounting and useful life estimates. FFO can help one compare the operating performance of a real estate company between periods or as compared to different companies. By further adjusting for items that are not considered by us to be part of our core business operations, Core FFO allows one to compare the core operating performance of the Company between periods. We believe that in order to understand our operating results, FFO and Core FFO should be examined with net income as presented in our Condensed Consolidated Financial Statements included elsewhere in this report.

We calculate Core FFO as FFO, adjusted for:

•joint venture gains (if not adjusted through FFO), non-core costs and promoted interests;

•casualty and impairment losses or gains, net on non-depreciable real estate;

•gains or losses from early extinguishment of consolidated borrowings;

•abandoned pursuits;

•business interruption insurance proceeds and the related lost NOI that is covered by the expected business interruption insurance proceeds;

•property and casualty insurance proceeds and legal settlements;

•gains or losses on sales of assets not subject to depreciation;

•advocacy contributions, representing payments to promote our business interests;

•hedge ineffectiveness;

•severance related costs;

•expensed transaction costs;

•for-sale condominium activity, including gains, marketing and administrative costs and imputed carry cost;

•income taxes; and

•other non-core items.

FFO and Core FFO do not represent net income in accordance with GAAP, and therefore should not be considered an alternative to net income, which remains the primary measure, as an indication of our performance. In addition, FFO and Core FFO as calculated by other REITs may not be comparable to our calculations of FFO and Core FFO.

The following is a reconciliation of net income attributable to common stockholders to FFO attributable to common stockholders and to Core FFO attributable to common stockholders (unaudited, dollars in thousands, except per share amounts):

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	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Depreciation - real estate assets, including joint venture adjustments	174,505		165,673		527,491		495,249
Distributions to noncontrolling interests	12		11		36		34
Gain on sale of unconsolidated entities holding previously depreciated real estate	(5,157)		—		(5,157)		—
Gain on sale of previously depreciated real estate	(31,607)		(130,484)		(91,338)		(165,849)
FFO attributable to common stockholders	285,456		314,877		917,534		947,758
Adjusting items:
Joint venture losses	86		—		86		—
Business interruption insurance proceeds	(282)		(307)		(385)		(914)
Lost NOI from casualty losses covered by business interruption insurance	—		410		48		410
(Gain) loss on extinguishment of consolidated debt	(105)		93		9,333		602
Advocacy contributions	1,308		—		3,074		—
Severance related costs	75		895		2,115		2,267
Development pursuit write-offs and expensed transaction costs, net	147		85		3,536		1,689
Gain on for-sale condominiums (1)(2)	(727)		—		(8,174)		—
For-sale condominium marketing and administrative costs (2)	1,373		1,108		4,012		2,526
For-sale condominium imputed carry cost (3)	2,580		1,724		9,013		2,230
Gain on other real estate transactions	(129)		(73)		(328)		(374)
Legal settlements (4)	59		(3,093)		35		(4,071)
Income tax (benefit) expense (5)	(27)		11,184		(1,069)		11,178
Core FFO attributable to common stockholders	$	289,814	$	326,903	$	938,830	$	963,301
Weighted average common shares outstanding - diluted	140,603,722		139,852,674		140,702,803		139,438,064
EPS per common share - diluted	$	1.05	$	2.00	$	3.46	$	4.43
FFO per common share - diluted	$	2.03	$	2.25	$	6.52	$	6.80
Core FFO per common share - diluted	$	2.06	$	2.34	$	6.67	$	6.91

_________________________

(1)Amount for the three and nine months ended September 30, 2020 includes the sale of seven and 59 residential condominiums, respectively, at The Park Loggia.

(2)The aggregate impact of (i) gain on for-sale condominiums and (ii) for-sale condominium marketing and administrative costs is a loss of $646 for the three months ended September 30, 2020 and a gain of $4,162 for the nine months ended September 30, 2020, and losses of $1,108 and $2,526, for the three and nine months ended September 30, 2019, respectively.

(3)Represents the imputed carry cost of for-sale residential condominiums at The Park Loggia. We compute this adjustment by multiplying the total capitalized cost of completed and unsold for-sale residential condominiums by our weighted average unsecured debt rate.

(4)Amounts for the three and nine months ended September 30, 2019 include $3,126 in legal settlement proceeds related to a former Development Right.

(5)Amounts for the three and nine months ended September 30, 2019 consist of $6,645 of income tax expense for a deferred tax liability for the GAAP to tax basis differences at The Park Loggia and $4,539 related to other activity through a TRS, including the disposition of two wholly-owned operating communities and expense for deferred tax liabilities related to our sustainability initiatives.

FFO and Core FFO also do not represent cash generated from operating activities in accordance with GAAP, and therefore should not be considered an alternative to net cash flows from operating activities, as determined by GAAP, as a measure of liquidity. Additionally, it is not necessarily indicative of cash available to fund cash needs.

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A presentation of GAAP based cash flow metrics is as follows (unaudited, dollars in thousands) and a discussion of "Liquidity and Capital Resources" can be found later in this report:

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net cash provided by operating activities	$	333,157	$	377,190	$	962,074	$	1,014,922
Net cash used in investing activities	$	(136,195)	$	(167,180)	$	(321,323)	$	(757,204)
Net cash used in financing activities	$	(430,256)	$	(205,300)	$	(585,965)	$	(140,828)

Liquidity and Capital Resources

We employ a disciplined approach to our liquidity and capital management. When we source capital, we take into account both our view of the most cost effective alternative available and our desire to maintain a balance sheet that provides us with flexibility. Our principal focus on near-term and intermediate-term liquidity is to ensure we have adequate capital to fund:

•development and redevelopment activity in which we are currently engaged or in which we plan to engage;

•the minimum dividend payments on our common stock required to maintain our REIT qualification under the Code;

•debt service and principal payments either at maturity or opportunistically before maturity; and

•normal recurring operating expenses and corporate overhead expenses.

Factors affecting our liquidity and capital resources are our cash flows from operations, financing activities and investing activities (including dispositions) as well as general economic and market conditions. Cash flows from operations are determined by operating activities and factors including but not limited to (i) the number of apartment homes currently owned, (ii) rental rates, (iii) occupancy levels, (iv) uncollectible lease revenue levels or interruptions in collections caused by market conditions and (iv) operating expenses with respect to apartment homes. The timing and type of capital markets activity in which we engage is affected by changes in the capital markets environment, such as changes in interest rates or the availability of cost-effective capital. Our plans for development, redevelopment, non-routine capital expenditure, acquisition and disposition activity are affected by market conditions and capital availability. We frequently review our liquidity needs, especially in periods with volatile market conditions, as well as the adequacy of cash flows from operations and other expected liquidity sources to meet these needs.

We had cash, cash equivalents and cash in escrow of $182,400,000 at September 30, 2020, an increase of $54,786,000 from $127,614,000 at December 31, 2019. As presented in our Condensed Consolidated Statements of Cash Flows included elsewhere in this report, the following discussion relates to changes in cash, cash equivalents and cash in escrow due to operating, investing and financing activities.

Operating Activities — Net cash provided by operating activities decreased to $962,074,000 for the nine months ended September 30, 2020 from $1,014,922,000 for the nine months ended September 30, 2019.

Investing Activities — Net cash used in investing activities totaled $321,323,000 for the nine months ended September 30, 2020. The net cash used was primarily due to:

•investment of $562,334,000 in the development and redevelopment of communities; and

•capital expenditures of $101,580,000 for our operating communities and non-real estate assets.

These amounts are partially offset by:

•net proceeds from the disposition of three operating communities of $186,090,000; and

•net proceeds from the sale of for-sale residential condominiums of $170,604,000.

Financing Activities — Net cash used in financing activities totaled $585,965,000 for the nine months ended September 30, 2020. The net cash used was primarily due to:

•repayments of unsecured notes in the amount of $958,681,000;

•payment of cash dividends in the amount of $661,000,000;

•the repurchase of 912,733 shares of our common stock at an average price of $150.58 per share for a total purchase price including fees of $137,458,000; and

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•repayments of mortgage notes payable in the amount of $125,427,000, of which $56,852,000 was subsequently refinanced, as discussed below.

These amounts are partially offset by:

•proceeds from the issuance of unsecured notes in the amount of $1,296,581,000; and

•the issuance of a secured note that was part of a refinancing, as discussed above, in the amount of $51,000,000.

Variable Rate Unsecured Credit Facility

We have a $1,750,000,000 revolving variable rate unsecured credit facility with a syndicate of banks (the “Credit Facility”) which matures in February 2024. The Credit Facility bears interest at varying levels based on (i) the London Interbank Offered Rate (“LIBOR”) applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.) and (ii) the rating levels issued for our unsecured notes. The current stated pricing for drawn borrowings is LIBOR plus 0.775% per annum (0.92% at October 30, 2020), assuming a one month borrowing rate. The annual facility fee is 0.125% (or approximately $2,188,000 annually based on the $1,750,000,000 facility size and based on our current credit rating).

We had borrowings of $239,000,000 outstanding under the Credit Facility and had $3,752,000 outstanding in letters of credit that reduced our borrowing capacity as of October 30, 2020. In addition, we had $32,422,000 outstanding in additional letters of credit on a separate facility unrelated to the Credit Facility as of October 30, 2020.

Financial Covenants

We are subject to financial covenants contained in the Credit Facility, Term Loans and the indentures under which our unsecured notes were issued. The principal financial covenants include the following:

•limitations on the amount of total and secured debt in relation to our overall capital structure;

•limitations on the amount of our unsecured debt relative to the undepreciated basis of real estate assets that are not encumbered by property-specific financing; and

•minimum levels of debt service coverage.

We were in compliance with these covenants at September 30, 2020.

In addition, some of our secured borrowings include yield maintenance, defeasance, or prepayment penalty provisions, which would result in us incurring an additional charge in the event of a full or partial prepayment of outstanding principal before the scheduled maturity. These provisions in our secured borrowings are generally consistent with other similar types of debt instruments issued during the same time period in which our borrowings were secured.

Continuous Equity Offering Program

In May 2019, we commenced a fifth continuous equity program ("CEP V") under which we may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of our common stock from time to time. Actual sales will depend on a variety of factors to be determined, including market conditions, the trading price of our common stock and determinations of the appropriate sources of funding. In conjunction with CEP V, we engaged sales agents who will receive compensation of up to 1.5% of the gross sales price for shares sold. We expect that, if entered into, we will physically settle each forward sale agreement on one or more dates prior to the maturity date of that particular forward sale agreement, in which case we will expect to receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the relevant forward sale price. However, we may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, we will pay the relevant forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three and nine months ended September 30, 2020 and through October 30, 2020, we had no sales under the program. As of October 30, 2020, there are no outstanding forward sales agreements and we had $752,878,000 remaining authorized for issuance under this program.

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Forward Interest Rate Swap Agreements

The following activity occurred during the nine months ended September 30, 2020:

•We settled an aggregate of $600,000,000 of forward interest rate swap agreements, making aggregate payments of $25,135,000. Of the positions settled, $250,000,000 were forward interest swaps that we had entered into during 2020.

◦In conjunction with the issuance of our $700,000,000 unsecured notes due 2030 in February 2020, we settled $350,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $20,314,000.

◦In conjunction with the issuance of our $600,000,000 unsecured notes due 2031 in May 2020, we settled $250,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $4,821,000.

•We entered into an additional $150,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability of interest rates on a portion of our expected debt issuance activity in 2021.

At maturity of the outstanding swap agreements, we expect to cash settle the contracts and either pay or receive cash for the then current fair value. Assuming that we issue the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

Stock Repurchase Program

In July 2020, our Board of Directors voted to terminate our prior $500,000,000 Stock Repurchase Program (the "Amended 2005 Stock Repurchase Program") and approved a new stock repurchase program under which we may acquire shares of our common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000 (the "2020 Stock Repurchase Program"). Purchases of common stock under the 2020 Stock Repurchase Program may be exercised from time to time in our discretion and in such amounts as market conditions warrant. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. We intend that funds used for the stock repurchase program will be matched over time with the proceeds from sales of existing apartment communities and in some cases with newly issued debt, but initially may be funded from existing cash balances, retained cash flow and/or our Credit Facility. As of October 30, 2020, we repurchased 1,131,919 shares of common stock at an average price of $150.11 per share, of which 912,733 shares of our common stock at an average price of $150.58 were repurchased during the three months ended September 30, 2020. As of October 30, 2020, we had $330,083,000 remaining authorized for purchase under this program.

Future Financing and Capital Needs — Debt Maturities

One of our principal long-term liquidity needs is the repayment of long-term debt at maturity. For both our unsecured and secured notes, a portion of the principal of these notes may be repaid prior to maturity. Early retirement of our unsecured or secured notes could result in gains or losses on extinguishment. If we do not have funds on hand sufficient to repay our indebtedness as it becomes due, it will be necessary for us to refinance or otherwise provide liquidity to satisfy the debt at maturity. This refinancing may be accomplished by uncollateralized private or public debt offerings, equity issuances, additional debt financing that is secured by mortgages on individual communities or groups of communities or borrowings under our Credit Facility. Although we believe we will have the capacity to meet our currently anticipated liquidity needs, we cannot assure you that capital from additional debt financing or debt or equity offerings will be available or, if available, that they will be on terms we consider satisfactory, especially in light of the uncertain impacts of the COVID-19 pandemic on capital markets.

The following debt activity occurred during the nine months ended September 30, 2020:

•In February 2020, we issued $700,000,000 principal amount of unsecured notes in a public offering under our existing shelf registration statement for net proceeds of approximately $694,701,000. The notes mature in March 2030 and were issued at a 2.30% interest rate.

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•In February 2020, we refinanced the secured borrowing for Avalon San Bruno III. The secured borrowing had a fixed interest rate of 3.08% and was refinanced for a principal balance of $51,000,000, with a fixed interest rate of 2.38% and maturity date of March 2027.

•In March 2020, we repaid (i) $400,000,000 principal amount of our 3.625% unsecured notes in advance of the October 2020 scheduled maturity and (ii) $250,000,000 principal amount of our 3.95% unsecured notes in advance of the January 2021 scheduled maturity. In conjunction with these repayments, we recognized a loss on debt extinguishment of $9,170,000 for prepayment penalties and the non-cash write-off of unamortized deferred financing costs.

•In May 2020, we issued $600,000,000 principal amount of unsecured notes in a public offering under our existing shelf registration statement for net proceeds of approximately $593,430,000. The notes mature in January 2031 and were issued at a 2.45% interest rate.

•In May 2020, we repaid $300,000,000 principal amount of variable rate unsecured notes in advance of the January 2021 scheduled maturity, recognizing a charge of $268,000 for the non-cash write-off of deferred financing costs.

•In August 2020, we repaid $67,904,000 principal amount of 4.18% fixed rate debt secured by Avalon Hoboken at par in advance of the December 2020 maturity date.

The following table details our consolidated debt maturities for the next five years, excluding our Credit Facility and amounts outstanding related to communities classified as held for sale, for debt outstanding at September 30, 2020 and December 31, 2019 (dollars in thousands). We are not directly or indirectly (as borrower or guarantor) obligated in any material respect to pay principal or interest on the indebtedness of any unconsolidated entities in which we have an equity or other interest.

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	All-In interest rate (1)		Principal maturity date		Balance Outstanding (2)				Scheduled Maturities
Community					12/31/2019		9/30/2020		2020		2021		2022		2023		2024		Thereafter
Tax-exempt bonds
Fixed rate
Avalon at Chestnut Hill	6.16	%	Oct-2047		$	36,995	$	36,551	$	152	$	629	$	663	$	699	$	737	$	33,671
Avalon Westbury	3.86	%	Nov-2036	(3)	62,200		62,200		—		—		—		—		—		62,200
					99,195		98,751		152		629		663		699		737		95,871
Variable rate
Avalon Acton	1.15	%	Jul-2040	(4)	45,000		45,000		—		—		—		—		—		45,000
Avalon Clinton North	1.80	%	Nov-2038	(4)	147,000		147,000		—		—		—		—		—		147,000
Avalon Clinton South	1.80	%	Nov-2038	(4)	121,500		121,500		—		—		—		—		—		121,500
Avalon Midtown West	1.72	%	May-2029	(4)	98,200		93,500		—		5,200		5,600		6,100		6,800		69,800
Avalon San Bruno I	1.69	%	Dec-2037	(4)	64,450		64,450		600		1,900		2,000		2,200		2,300		55,450
					476,150		471,450		600		7,100		7,600		8,300		9,100		438,750
Conventional loans
Fixed rate
$250 million unsecured notes	4.04	%	Jan-2021	(5)	250,000		—		—		—		—		—		—		—
$450 million unsecured notes	4.30	%	Sep-2022		450,000		450,000		—		—		450,000		—		—		—
$250 million unsecured notes	3.00	%	Mar-2023		250,000		250,000		—		—		—		250,000		—		—
$400 million unsecured notes	3.78	%	Oct-2020	(5)	400,000		—		—		—		—		—		—		—
$350 million unsecured notes	4.30	%	Dec-2023		350,000		350,000		—		—		—		350,000		—		—
$300 million unsecured notes	3.66	%	Nov-2024		300,000		300,000		—		—		—		—		300,000		—
$525 million unsecured notes	3.55	%	Jun-2025		525,000		525,000		—		—		—		—		—		525,000
$300 million unsecured notes	3.62	%	Nov-2025		300,000		300,000		—		—		—		—		—		300,000
$475 million unsecured notes	3.35	%	May-2026		475,000		475,000		—		—		—		—		—		475,000
$300 million unsecured notes	3.01	%	Oct-2026		300,000		300,000		—		—		—		—		—		300,000
$350 million unsecured notes	3.95	%	Oct-2046		350,000		350,000		—		—		—		—		—		350,000
$400 million unsecured notes	3.50	%	May-2027		400,000		400,000		—		—		—		—		—		400,000
$300 million unsecured notes	4.09	%	Jul-2047		300,000		300,000		—		—		—		—		—		300,000
$450 million unsecured notes	3.32	%	Jan-2028		450,000		450,000		—		—		—		—		—		450,000
$300 million unsecured notes	3.97	%	Apr-2048		300,000		300,000		—		—		—		—		—		300,000
$450 million unsecured notes	3.66	%	Jun-2029		450,000		450,000		—		—		—		—		—		450,000
$700 million unsecured notes	2.69	%	Mar-2030		—		700,000		—		—		—		—		—		700,000
$600 million unsecured notes	2.65	%	Jan-2031		—		600,000		—		—		—		—		—		600,000
Avalon Walnut Creek	4.00	%	Jul-2066		3,847		4,001		—		—		—		—		—		4,001
Eaves Los Feliz	3.68	%	Jun-2027		41,400		41,400		—		—		—		—		—		41,400
Eaves Woodland Hills	3.67	%	Jun-2027		111,500		111,500		—		—		—		—		—		111,500
Avalon Russett	3.77	%	Jun-2027		32,200		32,200		—		—		—		—		—		32,200
Avalon San Bruno II	3.85	%	Apr-2021		28,435		27,997		153		27,844		—		—		—		—
Avalon Westbury	4.88	%	Nov-2036	(3)	13,665		12,550		380		1,575		1,655		1,740		1,840		5,360
Avalon San Bruno III	3.18	%	Jun-2020	(6)	50,825		—		—		—		—		—		—		—
Avalon San Bruno III	2.38	%	Mar-2027	(6)	—		51,000		—		—		—		—		—		51,000
Avalon Hoboken	3.55	%	Dec-2020	(5)	67,904		—		—		—		—		—		—		—
Avalon Cerritos	3.35	%	Aug-2029		30,250		30,250		—		—		—		—		—		30,250
					6,230,026		6,810,898		533		29,419		451,655		601,740		301,840		5,425,711
Variable rate
Term Loan - $100 million	1.24	%	Feb-2022		100,000		100,000		—		—		100,000		—		—		—
Term Loan - $150 million	1.17	%	Feb-2024		150,000		150,000		—		—		—		—		150,000		—
$300 million unsecured notes	2.45	%	Jan-2021	(5)	300,000		—		—		—		—		—		—		—
					550,000		250,000		—		—		100,000		—		150,000		—
Total indebtedness - excluding Credit Facility					$	7,355,371	$	7,631,099	$	1,285	$	37,148	$	559,918	$	610,739	$	461,677	$	5,960,332

_________________________

(1)Rates are given as of September 30, 2020 and include credit enhancement fees, facility fees, trustees' fees, the impact of interest rate hedges, offering costs, mark to market amortization and other fees.

(2)Balances outstanding represent total amounts due at maturity, and exclude deferred financing costs and debt discount for the unsecured notes of $49,750 and $41,352 as of September 30, 2020 and December 31, 2019, respectively, and deferred financing

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costs and debt discount associated with secured notes of $17,703 and $17,729 as of September 30, 2020 and December 31, 2019, respectively, as reflected on our Condensed Consolidated Balance Sheets included elsewhere in this report.

(3)Maturity date reflects the contractual maturity of the underlying bond. There is also an associated earlier credit enhancement maturity date.

(4)Financed by variable rate debt, but interest rate is capped through an interest rate protection agreement.

(5)During 2020, we repaid this borrowing in advance of its scheduled maturity date.

(6)During 2020, we repaid a borrowing secured by this community and subsequently refinanced the secured borrowing.

Future Financing and Capital Needs — Portfolio and Capital Markets Activity

In light of the COVID-19 pandemic, we continue to monitor the availability of our various capital raising alternatives. During the remainder of 2020, we expect to meet our liquidity needs from one or more of a variety of internal and external sources, which may include (i) real estate dispositions, (ii) cash balances on hand as well as cash generated from our operating activities, (iii) borrowing capacity under our Credit Facility and (iv) secured and unsecured debt financings. Additional sources of liquidity in 2020 may include the issuance of common and preferred equity. Our ability to obtain additional financing will depend on a variety of factors, such as market conditions, the general availability of credit, the overall availability of credit to the real estate industry, our credit ratings and credit capacity, as well as the perception of lenders regarding our long or short-term financial prospects. In addition, the impacts of the COVID-19 pandemic on capital markets, including the availability and costs of debt and equity capital, remain uncertain and may have material adverse effects on our access to capital on attractive terms.

Before beginning new construction or reconstruction activity in 2020, including activity related to communities owned by unconsolidated joint ventures, we intend to plan adequate financing to complete these undertakings, although we cannot assure you that we will be able to obtain such financing. In the event that financing cannot be obtained, we may have to abandon Development Rights, write-off associated pre-development costs that were capitalized and/or forego reconstruction activity. In such instances, we will not realize the increased revenues and earnings that we expected from such Development Rights or reconstruction activity and significant losses could be incurred.

From time to time we use joint ventures to hold or develop individual real estate assets. We generally employ joint ventures primarily to mitigate asset concentration or market risk and secondarily as a source of liquidity. We may also use joint ventures related to mixed-use land development opportunities and new markets where our partners bring development and operational expertise and/or experience to the venture. Each joint venture or partnership agreement has been individually negotiated, and our ability to operate and/or dispose of a community in our sole discretion may be limited to varying degrees depending on the terms of the joint venture or partnership agreement. We cannot assure you that we will achieve our objectives through joint ventures.

In evaluating our allocation of capital within our markets, we sell assets that do not meet our long-term investment criteria or when capital and real estate markets allow us to realize a portion of the value created over our ownership periods and redeploy the proceeds from those sales to develop and redevelop communities. Because the proceeds from the sale of communities may not be immediately redeployed into revenue generating assets that we develop, redevelop or acquire, the immediate effect of a sale of a community for a gain is to increase net income, but reduce future total revenues, total expenses and NOI until such time as the proceeds have been redeployed into revenue generating assets. We believe that the temporary absence of future cash flows from communities sold will not have a material impact on our ability to fund future liquidity and capital resource needs.

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Unconsolidated Real Estate Investments and Off-Balance Sheet Arrangements

Unconsolidated Investments

As of September 30, 2020, we had investments in unconsolidated real estate entities accounted for under the equity method of accounting shown in the following table, excluding development joint ventures. Refer to Note 5, "Investments in Real Estate Entities," of the Condensed Consolidated Financial Statements included elsewhere in this report, which includes information on the aggregate assets, liabilities and equity, as well as operating results, and our proportionate share of their operating results. For ventures holding operating apartment communities as of September 30, 2020, detail of the real estate and associated indebtedness underlying our unconsolidated investments is presented in the following table (dollars in thousands).

	Company ownership percentage		# of apartment homes	Total capitalized cost		Debt (1)
									Interest rate		Maturity date
Unconsolidated Real Estate Investments						Amount		Type
NYC Joint Venture
1. Avalon Bowery Place I - New York, NY			206	$	209,163	$	93,800	Fixed	4.01	%	Jan 2029
2. Avalon Bowery Place II - New York, NY			90	90,928		39,639		Fixed	4.01	%	Jan 2029
3. Avalon Morningside - New York, NY (2)			295	210,964		112,500		Fixed	3.55	%	Jan 2029/May 2046
4. Avalon West Chelsea - New York, NY (3)			305	127,813		66,000		Fixed	4.01	%	Jan 2029
5. AVA High Line - New York, NY (3)			405	121,344		84,000		Fixed	4.01	%	Jan 2029
Total NYC Joint Venture	20.0	%	1,301	760,212		395,939			3.88	%
Archstone Multifamily Partners AC LP (the "U.S. Fund")
1. Avalon Studio 4121 - Studio City, CA			149	57,189		27,158		Fixed	3.34	%	Nov 2022
2. Avalon Station 250 - Dedham, MA			285	98,355		52,904		Fixed	3.73	%	Sep 2022
3. Avalon Grosvenor Tower - Bethesda, MD			237	80,664		41,009		Fixed	3.74	%	Sep 2022
Total U.S. Fund	28.6	%	671	236,208		121,071			3.65	%
Multifamily Partners AC JV LP (the “AC JV”)
1. Avalon North Point - Cambridge, MA (4)			426	190,178		111,653		Fixed	6.00	%	Aug 2021
2. Avalon North Point Lofts - Cambridge, MA			103	26,893		—		N/A	N/A		N/A
Total AC JV	20.0	%	529	217,071		111,653			6.00	%
Other Operating Joint Ventures
1. MVP I, LLC	25.0	%	313	127,922		103,000		Fixed	3.24	%	Jul 2025
2. Brandywine Apartments of Maryland, LLC	28.7	%	305	19,383		21,158		Fixed	3.40	%	Jun 2028
Total Other Joint Ventures			618	147,305		124,158			3.27	%
Total Unconsolidated Investments			3,119	$	1,360,796	$	752,821		4.06	%

_____________________________

(1)We have not guaranteed the debt of unconsolidated investees and bear no responsibility for the repayment unless otherwise disclosed.

(2)Borrowing on this community is comprised of two mortgage loans. The interest rate is the weighted average rate as of September 30, 2020.

(3)Borrowing on this dual-branded community is comprised of a single mortgage loan.

(4)Borrowing is comprised of loans made by the equity investors in the venture in proportion to their equity interests.

During the three and nine months ended September 30, 2020, the U.S. Fund sold one community containing 70 apartment homes for $65,000,000. Our share of the gain was $5,157,000. In conjunction with the disposition of this community, the U.S. Fund repaid $27,117,000 of secured indebtedness at par.

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During the three and nine months ended September 30, 2020, we entered into a joint venture to develop, own and operate AVA Arts District, an apartment community located in Los Angeles, CA, which is currently under construction and expected to contain 475 apartment home when complete. We own a 25.0% interest in the venture, and the venture partner owns the remaining 75.0% interest. Our total expected equity investment is approximately $27,600,000, of which $14,800,000 has already been contributed. The venture has secured a $165,600,000 variable rate construction loan to fund approximately 60% of the development of AVA Arts District of which no amounts have been drawn as of September 30, 2020. The venture will commence draws under the loan subsequent to required equity contributions by the venture partners. We have guaranteed the construction loan on behalf of the venture, and any obligations we may incur under the construction loan guarantee, except to the extent that our misconduct gave rise to the obligation, are required capital contributions of the partners based on ownership interest.

The following table presents a summary of the Unconsolidated Development Communities.

Unconsolidated  Development Community		Company ownership percentage		# of apartment homes	Projected total capitalized cost (1) ($ millions)		Construction start	Initial projected occupancy (2)	Estimated completion
1.	Avalon Alderwood Mall Lynnwood, WA	50.0	%	328	$	110	Q4 2019	Q4 2021	Q2 2022
2.	AVA Arts District (3) Los Angeles, CA	25.0	%	475	276		Q3 2020	Q1 2023	Q4 2023
	Total			803	$	386

_____________________________

(1)Projected total capitalized cost includes all capitalized costs projected to be incurred to develop the respective Unconsolidated Development Community, determined in accordance with GAAP, including land acquisition costs, construction costs, real estate taxes, capitalized interest and loan fees, permits, professional fees and other regulatory fees, as well as costs incurred for first generation commercial tenants such as tenant improvements and leasing commissions. Projected total capitalized cost is the total projected joint venture amount.

(2)Initial projected occupancy dates are estimates.

(3)AVA Arts District is expected to contain 56,000 square feet of commercial space.

Off-Balance Sheet Arrangements

In addition to our investment interests in consolidated and unconsolidated real estate entities, we have certain off-balance sheet arrangements with the entities in which we invest. Additional discussion of these entities can be found in Note 5, "Investments in Real Estate Entities," of our Condensed Consolidated Financial Statements included elsewhere in this report.

Unless otherwise noted, we have not guaranteed the debt of our unconsolidated real estate entities, as referenced in the tables above, nor do we have any obligation to fund this debt should the unconsolidated real estate entities be unable to do so. In the future, in the event the unconsolidated real estate entities were unable to meet their obligations under a loan, we cannot predict at this time whether we would provide any voluntary support, or take any other action, as any such action would depend on a variety of factors, including the amount of support required and the possibility that such support could enhance the return of the unconsolidated real estate entities and/or our returns by providing time for performance to improve.

There are no other material lines of credit, side agreements, financial guarantees or any other derivative financial instruments related to or between our unconsolidated real estate entities and us. In evaluating our capital structure and overall leverage, management takes into consideration our proportionate share of the indebtedness of unconsolidated entities in which we have an interest.

Contractual Obligations

We currently have contractual obligations consisting primarily of long-term debt obligations and lease obligations for certain land parcels and regional and administrative office space. As of September 30, 2020, other than as discussed in this Form 10-Q, there have been no other material changes in our scheduled contractual obligations as disclosed in our Form 10-K.

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Development Communities

As of September 30, 2020, we owned or held a direct interest in 17 Development Communities under construction. We expect these Development Communities, when completed, to add a total of 5,581 apartment homes and 64,000 square feet of commercial space to our portfolio for a total capitalized cost, including land acquisition costs, of approximately $2,115,000,000. We cannot assure you that we will meet our schedule for construction completion or that we will meet our budgeted costs, either individually or in the aggregate. You should carefully review Part I, Item 1A. "Risk Factors" of our Form 10-K, as well as the discussion under Part II, Item 1A. "Risk Factors" in this report, for a discussion of the risks associated with development activity.

The following table presents a summary of the Development Communities. We hold a fee simple ownership interest in these communities (directly or through a wholly-owned subsidiary).

		Number of apartment homes	Projected total capitalized cost (1) ($ millions)		Construction start	Initial projected or actual occupancy (2)	Estimated completion	Estimated stabilized operations (3)
1.	Avalon Yonkers Yonkers, NY	590	$	196	Q4 2017	Q3 2019	Q2 2021	Q4 2021
2.	AVA Hollywood (4) Hollywood, CA	695	375		Q4 2016	Q4 2019	Q1 2021	Q3 2021
3.	Avalon Towson Towson, MD	371	114		Q4 2017	Q1 2020	Q4 2020	Q3 2021
4.	Avalon Walnut Creek II Walnut Creek, CA	200	113		Q4 2017	Q3 2020	Q4 2020	Q2 2021
5.	Avalon Doral Doral, FL	350	116		Q2 2018	Q3 2020	Q4 2020	Q3 2021
6.	Avalon Old Bridge Old Bridge, NJ	252	72		Q3 2018	Q3 2020	Q2 2021	Q3 2021
7.	Avalon 555 President Baltimore, MD	400	139		Q3 2018	Q3 2020	Q3 2021	Q4 2021
8.	Avalon Newcastle Commons II Newcastle, WA	293	107		Q4 2018	Q4 2020	Q3 2021	Q1 2022
9.	Kanso Twinbrook Rockville, MD	238	66		Q4 2018	Q4 2020	Q2 2021	Q4 2021
10.	Avalon Harrison (4) Harrison, NY	143	77		Q4 2018	Q2 2021	Q2 2022	Q3 2022
11.	Avalon Brea Place Brea, CA	653	290		Q2 2019	Q1 2021	Q2 2022	Q3 2022
12.	Avalon Foundry Row Owings Mill, MD	437	100		Q2 2019	Q1 2021	Q1 2022	Q3 2022
13.	Avalon Marlborough II Marlborough, MA	123	42		Q2 2019	Q3 2020	Q4 2020	Q1 2021
14.	Avalon Acton II Acton, MA	86	32		Q4 2019	Q3 2020	Q1 2021	Q2 2021
15.	Avalon Woburn Woburn, MA	350	121		Q4 2019	Q3 2021	Q2 2022	Q3 2022
16.	AVA RiNo Denver, CO	246	87		Q4 2019	Q1 2022	Q2 2022	Q4 2022
17.	Avalon Monrovia Monrovia, CA	154	68		Q4 2019	Q1 2021	Q3 2021	Q4 2021
	Total	5,581	$	2,115

_________________________________

(1)Projected total capitalized cost includes all capitalized costs projected to be incurred to develop the respective Development Community, determined in accordance with GAAP, including land acquisition costs, construction costs, real estate taxes, capitalized interest and loan fees, permits, professional fees, allocated development overhead and other regulatory fees, as well as costs incurred for first generation commercial tenants such as tenant improvements and leasing commissions.

(2)Initial projected occupancy dates are estimates.

(3)Stabilized operations is defined as the earlier of (i) attainment of 90% or greater physical occupancy or (ii) the one-year anniversary of completion of development.

(4)Development Communities containing at least 10,000 square feet of commercial space include AVA Hollywood (19,000 square feet) and Avalon Harrison (27,000 square feet).

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During the three months ended September 30, 2020, we completed the development of Avalon Public Market located in Emeryville, CA, containing 289 apartment homes and 287,658 square feet of rentable space, for a total capitalized cost of $175,000,000, or $608 per square foot as of September 30, 2020. We generally anticipate incurring additional costs associated with Development Communities that are customary for new developments.

Development Rights

At September 30, 2020, we had $43,494,000 in acquisition and related capitalized costs for direct interests in land parcels we own, and $73,748,000 in capitalized costs (including legal fees, design fees and related overhead costs) related to Development Rights for which we control the land parcel, typically through a conditional agreement or option to purchase or lease the land. Collectively, the land held for development and associated costs for deferred development rights relate to 27 Development Rights for which we expect to develop new apartment communities in the future. The cumulative capitalized costs for land held for development as of September 30, 2020 includes $28,900,000 in original land acquisition costs. The Development Rights range from those beginning design and architectural planning to those that have completed site plans and drawings and can begin construction almost immediately. We estimate that the successful completion of all of these communities would ultimately add approximately 9,320 apartment homes to our portfolio. Substantially all of these apartment homes will offer features like those offered by the communities we currently own.

For 21 Development Rights, we control the land through a conditional agreement or option to purchase or lease the parcel. For the other six Development Rights, we own the land, of which four are additional development phases of existing stabilized operating communities we own and which will be constructed on land currently adjacent to or directly associated with those operating communities.

The properties comprising the Development Rights are in different stages of the due diligence and regulatory approval process. The decisions as to which of the Development Rights to invest in, if any, or to continue to pursue once an investment in a Development Right is made, are business judgments that we make after we perform financial, demographic and other analyses. In the event that we do not proceed with a Development Right, we generally would not recover any of the capitalized costs incurred in the pursuit of those communities, unless we were to recover amounts in connection with the sale of land; however, we cannot guarantee a recovery. Pre-development costs incurred in the pursuit of Development Rights for which future development is not yet considered probable are expensed as incurred. In addition, if the status of a Development Right changes, making future development no longer probable, any unrecoverable capitalized pre-development costs are charged to expense. During the nine months ended September 30, 2020, we incurred a charge of $4,289,000 for expensed transaction, development and other pursuit costs, net of recoveries, which include development pursuits that were not yet probable of future development at the time incurred, or for pursuits that we determined were no longer probable of being developed.

You should carefully review Part I, Item 1A. "Risk Factors" of our Form 10-K, as well as the discussion under Part II, Item 1A. "Risk Factors" in this report, for a discussion of the risks associated with Development Rights.

The following presents a summary of the Development Rights as of September 30, 2020:

Market	Number of rights	Estimated number of homes	Projected total capitalized cost ($ millions) (1)
New England	3	394	$	156
Metro NY/NJ	13	5,371	2,225
Mid-Atlantic	—	—	—
Pacific Northwest	3	1,122	443
Northern California	4	1,198	666
Southern California	—	—	—
Southeast Florida	1	254	95
Denver, CO	3	981	322
Total	27	9,320	$	3,907

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____________________________________

(1)Projected total capitalized cost includes all capitalized costs incurred to date (if any) and projected to be incurred to develop the respective community, determined in accordance with GAAP, including land acquisition costs, construction costs, real estate taxes, capitalized interest and loan fees, permits, professional fees, allocated development overhead and other regulatory fees, as well as costs incurred for first generation commercial tenants such as tenant improvements and leasing commissions.

Insurance and Risk of Uninsured Losses

We maintain commercial general liability insurance and property insurance with respect to all of our communities, with insurance policies issued by a combination of third party insurers as well as a wholly-owned captive insurance company. These policies, along with other insurance policies we maintain, have policy specifications, insured and self-insured limits, exclusions and deductibles that we consider commercially reasonable. We utilize a wholly-owned captive insurance company to insure certain types and amounts of risks, which includes property damage and resulting business interruption losses, general liability insurance and other construction related liability risks. The captive is utilized to insure other limited levels of risk, which may be in part reinsured by third party insurance. There are, however, certain types of losses (including, but not limited to, losses arising from nuclear liability, pandemic or acts of war) that are not insured, in full or in part, because they are either uninsurable or the cost of insurance makes it, in management’s view, economically impractical. You should carefully review the discussion under Part I, Item 1A. “Risk Factors” of our Form 10-K for a discussion of risks associated with an uninsured property or casualty loss.

Our communities are insured for certain property damage and business interruption losses through a combination of community specific insurance policies and/or a master property insurance program which covers the majority of our communities. This master property program provides a $400,000,000 limit for any single occurrence, subject to certain sub-limits and exclusions. Under the master property program, we are subject to a $100,000 deductible per occurrence, as well as additional self-insured retention for the next $350,000 of loss, per occurrence, until the aggregate incurred self-insured retention exceeds $1,500,000 for the policy year. In addition to our potential liability for the various policy self-insured retentions and deductibles, our captive insurance company is directly responsible for 100% of the first $25,000,000 of losses (per occurrence) and 10% of the second $25,000,000 of losses (per occurrence) incurred by the master property insurance policy. Our master property insurance program includes coverage for losses resulting from wildfires and windstorm. Limits, deductibles, self-insured retentions and coverages may increase or decrease annually during the insurance renewal process which occurs on different dates throughout the calendar year.

Many of our West Coast communities are located within the general vicinity of active earthquake faults. Many of our communities are near, and thus susceptible to, the major fault lines in California, including the San Andreas Fault, the Hayward Fault or other geological faults that are known or unknown. We cannot assure you that an earthquake would not cause damage or losses greater than our current insured levels. We procure property damage and resulting business interruption insurance coverage with a loss limit of $175,000,000 for any single occurrence and in the annual aggregate for losses resulting from earthquakes. However, for any losses resulting from earthquakes at communities located in California or Washington, the loss limit is $200,000,000 for any single occurrence and in the annual aggregate. The deductible applicable to losses resulting from earthquakes occurring in California is five percent of the insured value of each damaged building subject to a minimum of $100,000 and a maximum of $25,000,000 per loss.

Our communities are insured for third-party liability losses through a combination of community specific insurance policies and/or coverage provided under a master commercial general liability and umbrella/excess insurance program. The master commercial general liability and umbrella/excess insurance policies cover the majority of our communities and are subject to certain coverage limitations and exclusions, and they require a self-insured retention of $500,000 per occurrence. Our captive insurance company is directly responsible for covered liability claims arising out of our primary commercial general liability policy, subject to a $2,000,000 per occurrence loss limit.

We also maintain certain casualty policies (general liability, umbrella/excess and workers compensation) for construction related risks which have various exclusions and deductibles that, in management’s view, are commercially reasonable. Certain projects are insured through our master insurance policies while others are insured through project-specific insurance policies. The limits vary by project and may be subject to deductibles in excess of $500,000 per occurrence.

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Just as with office buildings, transportation systems and government buildings, there have been reports that apartment communities could become targets of terrorism. Our communities are insured for terrorism related losses through the Terrorism Risk Insurance Program Reauthorization Act (“TRIPRA”) program. This coverage extends to most of our casualty exposures (subject to deductibles and insured limits) and certain property insurance policies. We have also purchased private-market insurance for property damage due to terrorism with limits of $600,000,000 per occurrence and in the annual aggregate that includes certain coverages (not covered under TRIPRA) such as domestic-based terrorism. This insurance, often referred to as “non-certified” terrorism insurance, is subject to deductibles, limits and exclusions.

An additional consideration for insurance coverage and potential uninsured losses is mold growth or other environmental contamination. Mold growth may occur when excessive moisture accumulates in buildings or on building materials, particularly if the moisture problem remains undiscovered or is not addressed over a period of time. If a significant mold problem arises at one of our communities, we could be required to undertake a costly remediation program to contain or remove the mold from the affected community and could be exposed to other liabilities. For further discussion of the risks and our related prevention and remediation activities, please refer to the discussion under Part I, Item 1A. “Risk Factors - We may incur costs due to environmental contamination or non-compliance” of our Form 10-K. We cannot provide assurance that we will have coverage under our existing policies for property damage or liability to third parties arising as a result of exposure to mold or a claim of exposure to mold at one of our communities.

We also maintain a crime policy (also commonly referred to as a fidelity policy or employee dishonesty policy) that applies to losses from employee theft of money, securities or property and a cyber liability insurance policy that applies to losses from breaches of data privacy. These policies are subject to maximum loss limits and include coverage limitations or exclusion that may preclude a full insurance recovery of losses related to employee theft or breaches of data privacy.

The amount or types of insurance we maintain may not be sufficient to cover all losses and we may change our policy limits, coverages and self-insured retentions at any time.

Inflation and Deflation

Substantially all of our apartment leases are for a term of one year or less. In an inflationary environment, this may allow us to realize increased rents upon renewal of existing leases or the beginning of new leases. Short-term leases generally minimize our risk from the adverse effect of inflation, although these leases generally permit residents to leave at the end of the lease term and therefore expose us to the effect of a decline in market rents. Similarly, in a deflationary rent environment, we may be exposed to declining rents more quickly under these shorter-term leases.

Forward-Looking Statements

This Form 10-Q contains "forward-looking statements" as that term is defined under the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by our use of the words "believe," "expect," "anticipate," "intend," "estimate," "assume," "project," "plan," "may," "shall," "will" and other similar expressions in this Form 10-Q, that predict or indicate future events and trends and that do not report historical matters. These statements include, among other things, statements regarding our intent, belief or expectations with respect to:

•our potential development, redevelopment, acquisition or disposition of communities;

•the timing and cost of completion of apartment communities under construction, reconstruction, development or redevelopment;

•the timing of lease-up, occupancy and stabilization of apartment communities;

•the timing and net sales proceeds of condominium sales;

•the pursuit of land on which we are considering future development;

•the anticipated operating performance of our communities;

•cost, yield, revenue, NOI and earnings estimates;

•the impact of landlord-tenant laws and rent regulations;

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•our declaration or payment of dividends;

•our joint venture and discretionary fund activities;

•our policies regarding investments, indebtedness, acquisitions, dispositions, financings and other matters;

•our qualification as a REIT under the Internal Revenue Code;

•the real estate markets in Northern and Southern California, Denver, Colorado, and Southeast Florida, and markets in selected states in the Mid-Atlantic, New England, Metro New York/New Jersey and Pacific Northwest regions of the United States and in general;

•the availability of debt and equity financing;

•interest rates;

•general economic conditions including the potential impacts from current economic conditions and the COVID-19 pandemic;

•trends affecting our financial condition or results of operations; and

•the impact of outstanding legal proceedings.

We cannot assure the future results or outcome of the matters described in these statements; rather, these statements merely reflect our current expectations of the approximate outcomes of the matters discussed. We do not undertake a duty to update these forward-looking statements, and therefore they may not represent our estimates and assumptions after the date of this report. You should not rely on forward-looking statements because they involve known and unknown risks, uncertainties and other factors, some of which are beyond our control. These risks, uncertainties and other factors may cause our actual results, performance or achievements to differ materially from the anticipated future results, performance or achievements expressed or implied by these forward-looking statements. You should carefully review the discussion under Part I, Item 1A. "Risk Factors" of our Form 10-K and Part II, Item 1A. "Risk Factors" in this report, for further discussion of risks associated with forward-looking statements.

Risks and uncertainties that might cause such differences include those related to the COVID-19 pandemic, about which there are many uncertainties, including (i) the duration and severity of the pandemic, (ii) the effect on the multifamily industry and the general economy of measures taken by businesses and the government to prevent the spread of the novel coronavirus and relieve economic distress of consumers, such as governmental limitations on the ability of multifamily owners to evict residents who are delinquent in the payment of their rent and (iii) the preferences of consumers and businesses for living and working arrangements both during and after the pandemic. Due to this uncertainty we are not able at this time to estimate the effect of these factors on our business, but the adverse impact of the pandemic on our business, results of operations, cash flows and financial condition could be material. In addition, the effects of the pandemic are likely to heighten the following risks, which we routinely face in our business:

•we may fail to secure development opportunities due to an inability to reach agreements with third-parties to obtain land at attractive prices or to obtain desired zoning and other local approvals;

•we may abandon or defer development opportunities for a number of reasons, including changes in local market conditions which make development less desirable, increases in costs of development, increases in the cost of capital or lack of capital availability, resulting in losses;

•construction costs of a community may exceed our original estimates;

•we may not complete construction and lease-up of communities under development or redevelopment on schedule, resulting in increased interest costs and construction costs and a decrease in our expected rental revenues;

•the timing and net proceeds of condominium sales may not equal our current expectations;

•occupancy rates and market rents may be adversely affected by competition and local economic and market conditions which are beyond our control;

51

•financing may not be available on favorable terms or at all, and our cash flows from operations and access to cost effective capital may be insufficient for the development of our pipeline which could limit our pursuit of opportunities;

•the impact of new landlord-tenant laws and rent regulations may be greater than we expected;

•our cash flows may be insufficient to meet required payments of principal and interest, and we may be unable to refinance existing indebtedness or the terms of such refinancing may not be as favorable as the terms of existing indebtedness;

•we may be unsuccessful in our management of joint ventures and the REIT vehicles that are used with certain joint ventures;

•we may be unsuccessful in managing changes in our portfolio composition;

•laws and regulations implementing rent control or rent stabilization, or otherwise limiting our ability to increase rents, charge fees or evict tenants, may impact our revenue or increase our costs;

•our expectations, estimates and assumptions as of the date of this filing regarding outstanding legal proceedings are subject to change; and

•the likelihood that we may choose to pay dividends in our stock instead of cash, which may result in stockholders having to pay taxes with respect to such dividends in excess of the cash received, if any.

Critical Accounting Policies

The preparation of financial statements in conformity with GAAP requires management to use judgment in the application of accounting policies, including making estimates and assumptions. If our judgment or interpretation of the facts and circumstances relating to various transactions had been different, or different assumptions were made, it is possible that different accounting policies would have been applied, resulting in different financial results or a different presentation of our financial statements. Our critical accounting policies consist of the following: (i) cost capitalization and (ii) abandoned pursuit costs and asset impairment. Our critical accounting policies and estimates have not changed materially from the discussion of our significant accounting policies found in Management's Discussion and Analysis and Results of Operations in our Form 10-K.

52

ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

There have been no material changes to our exposures to market risk since December 31, 2019.

ITEM 4.    CONTROL AND PROCEDURES

(a)Evaluation of disclosure controls and procedures. 

The Company carried out an evaluation under the supervision and with the participation of the Company's management, including the Company's Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company's disclosure controls and procedures as of September 30, 2020. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company's disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission's rules and forms.

We continue to review and document our disclosure controls and procedures, including our internal controls and procedures for financial reporting, and may from time to time make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business.

(b)Changes in internal controls over financial reporting.

None.

PART II.    OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS

Following the filing of a petition by Local 30 of the International Union of Operating Engineers ("Local 30"), on April 23, 2019 an election was held among our non-management, onsite maintenance associates at our Westchester County, New York operating communities, and the associates elected to be represented by Local 30 in collective bargaining. The Company filed objections to the election on various grounds, which were rejected by the local hearing officer and regional director of the National Labor Relations Board (“NLRB”). On August 26, 2020, the NLRB denied the Company’s request to review those decisions. To date, the Company and Local 30 have not begun to negotiate a collective bargaining agreement covering non-management, onsite maintenance associates at the affected Westchester County, New York communities. The Company does not believe that this matter and the possible representation by Local 30 of our maintenance associates in Westchester County will have a material adverse effect on the Company's financial condition or its results of operations.

The Company is involved in various other claims and/or administrative proceedings that arise in the ordinary course of its business. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

ITEM 1A.     RISK FACTORS

In addition to the other information set forth in this report, you should carefully consider the risk factors which could materially affect our business, financial condition or future results discussed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019 in Part I, Item 1A. "Risk Factors." The risks described in our Form 10-K are not the only risks that could affect the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition and/or operating results in the future. The risk factors set forth below update, and should be read together with, the risk factors described in our 2019 Form 10-K.

53

The current COVID-19 pandemic, or the future outbreak of other highly infectious or contagious diseases, could materially and adversely impact or disrupt our financial condition, results of operations, cash flows and performance.

Since its discovery in December 2019, a new strain of coronavirus has spread from China to many other countries, including the United States, and has caused the spread of the COVID-19 respiratory disease. As a result of the outbreak, the World Health Organization has declared a pandemic, the U.S. Health and Human Services Secretary has declared a public health emergency in the United States which was most recently renewed as of October 2, 2020, and many state governors, including in the states where we do business, have declared states of emergency. Considerable uncertainty still surrounds the ultimate impact and duration of the COVID-19 pandemic, including the effectiveness of any responses taken on a national and local level, the availability of supplies and testing to address the pandemic, the response time for obtaining test results, the potential and timing for development of effective treatments or vaccines and the economic effects of the COVID-19 pandemic. However, measures taken to date to limit the impact and spread of COVID-19, including social distancing and other restrictions on travel, congregation and business operations, have already resulted in significant negative economic impacts, including the impacts on the Company described in this report. The long-term impact of COVID-19 on the United States and world economies remains uncertain, and the duration, scope and significance of any resulting economic downturn cannot currently be predicted.

The global impact of the COVID-19 pandemic continues to evolve, and the ongoing extent of its effect on our operational and financial performance will depend on future developments that are highly uncertain and cannot be predicted with confidence, including the duration, scope and severity of the pandemic; the actions taken to contain or mitigate its impact; changes in consumer and business preferences for living and working arrangements; and the direct and indirect economic effects of the pandemic and related containment measures, among others. The COVID-19 pandemic presents material uncertainty and risk with respect to our performance, financial condition, results of operations, cash flows and performance. Moreover, many of the risk factors set forth in the Form 10-K should be interpreted as heightened risks as a result of the impact of the COVID-19 pandemic. In addition, if in the future there is an outbreak of another highly infectious or contagious disease, the Company and our properties may be subject to similar risks as posed by COVID-19.

Impact of COVID-19 on Our Operations

Our operating results depend, in large part, on revenues derived from leasing apartment homes in our communities to residential tenants, the ability of our residents to earn sufficient income to pay their rents in a timely manner, the extent to which we waive late and other customary fees associated with the apartment rental process, and our ability to limit uncollectible lease revenue and maintain operating results by evicting and re-leasing apartment homes when residents remain delinquent in their payment of rent. The market and economic challenges created by the COVID-19 pandemic, and governmental measures implemented to prevent its spread and cushion the economic impact on consumers, may adversely affect our revenues, net income, NOI, returns on investment and profitability and, as a result, our ability to make distributions to our stockholders or to realize appreciation in the value of our properties. Operating impacts from the COVID-19 pandemic include the following:

•The spread of the COVID-19 virus and related government actions could result in further increases in unemployment, and residents that experience deteriorating financial conditions as a result of the pandemic may be unwilling or unable to pay rent in full on a timely basis. In some cases, we may have to restructure tenants’ rent obligations and may not be able to do so on terms as favorable to us as those currently in place. In response to the COVID-19 pandemic, numerous state, local, and federal efforts have also imposed restrictions, for varying times and to varying degrees, on our ability to enforce residents’ contractual lease obligations, and this will affect our ability (until a restriction is lifted or expires) to collect rent or enforce all our remedies (such as eviction) for the failure to pay rent. In addition to these regulatory limits on evictions, in practical terms many of the housing courts and sheriff’s offices on which we rely to enforce our rights are not operating at the same level of volume or effectiveness as before the pandemic.

•In the event of resident nonpayment, default or bankruptcy, the uncollectibility of rent could increase and we may not be able to re-lease apartment homes at current or projected rents. Our occupancy levels and pricing across our portfolio may decline due to changes in demand or logistical challenges in showing or leasing apartment homes to prospective residents, including restrictions or recommended guidelines inhibiting our employees’ ability to meet with existing or potential residents.

•Various state, local and federal rules have required us, in some jurisdictions or for some properties, to waive late fees and certain other customary fees associated with our apartment rental business, and may do so in the future. We have elected at times to also waive these fees even where or when not required, and may do so in the future. These requirements or practices have resulted, and to the extent implemented or continued, may in the future result in foregone revenue.

54

•Our properties may also incur significant costs or losses related to shelter-in-place or stay-at-home orders, quarantines, infection, clean-up costs or other related factors.

•The pandemic may depress demand among consumers for our apartments for a variety of reasons. Consumers whose income has declined, who are working remotely or who cannot freely access neighborhood amenities like restaurants, gyms and entertainment venues, may decide during the pandemic to live somewhere other than our markets. Low interest rates that are caused by the pandemic and government responses, as well as general health concerns, may encourage consumers who would otherwise rent a multifamily apartment to instead rent a single family home or purchase a home. Additionally, to the extent that some institutions of higher learning continue to turn to online education and business activity and travel remain at lower levels, we expect that demand from students and corporate apartment homes may remain below pre-pandemic levels.

•Social distancing and other measures in response to the pandemic have caused us to revise the manner in which we meet with prospective residents and serve current residents. For example, many prospective residents are visiting apartments virtually or on a self-tour rather than being accompanied by a leasing consultant. In addition, in many communities various common area amenities are closed. These factors may affect resident satisfaction and leasing velocity.

In addition to renting apartment homes directly to residents, we also lease ancillary commercial space at our communities and lease apartment homes to corporate apartment home providers. In 2019, 1.4% of our total revenue was from commercial tenants and 3.4% of our total residential revenue was from corporate apartment home providers. We are experiencing a higher rate of delinquency from commercial and corporate apartment home tenants than from residential tenants. There may also be a greater risk of bankruptcy and default from commercial and corporate apartment home providers.

Until such time as the virus is contained or eradicated, or effective and reliable treatments and/or vaccines are widely available, commerce and employment may not return to more customary levels and we may experience material reductions in our operating revenue and NOI compared to our pre-pandemic experience.

Emergency orders shutting down non-essential businesses, limiting congregations of people, and requiring social distancing have also disrupted our development and construction activity. During the three months ended June 30, 2020, we had to temporarily cease or slow down construction at various of our Development Communities. To the extent we experience further cessations or delays in construction, our construction costs may increase and we may not achieve, on the schedule we originally planned, the cash flows that we expect when we begin leasing a completed property. We may also delay the start of construction of additional development communities which, if constructed and leased as originally planned, would have been a source of future additional cash flow.

The same factors as described immediately above as impacting the pace of our development may also impact our workforce. Many associates, particularly in overhead positions, are working remotely. This disruption in the normal operations of our workforce, as well as the possibility of illness among our associates or a substantial portion of our workforce, could also adversely affect our operations.

Impact of COVID-19 on Liquidity and Financing

As a result of the current economic downturn, the real estate market may be unable to attract the same level of capital investment that it attracted before the COVID-19 pandemic, and there may be a reduction in the number of companies seeking to acquire properties, which may result in the value of our properties not appreciating, or decreasing significantly below the amount for which we acquired or developed them. This may also limit our ability to sell our properties, realize a cash return on our investment and reinvest the sales proceeds in new properties.

In light of the disruptions caused by the COVID-19 pandemic, bank lending, capital and other financial markets and sources may deteriorate and our access to capital and other sources of funding may become constrained, which could adversely affect the availability and terms of future borrowings, renewals or refinancings. A constriction on lending by financial institutions could reduce the number of properties we can develop, redevelop or acquire, our cash flow from operations and our ability to make cash distributions to our stockholders.

We may in the future choose to pay taxable dividends in our stock instead of cash, in which case stockholders may be required to pay income taxes in excess of the cash dividends they receive. See Part I, Item 1A. "Risk Factors - We may choose to pay dividends in our own stock, in which case stockholders may be required to pay tax in excess of the cash they receive" of our Form 10-K for discussion.

55

ITEM 2.    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

Issuer Purchases of Equity Securities

Period	(a) Total Number of Shares Purchased (1)	(b) Average Price Paid  Per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Dollar Amount that May Yet be Purchased Under the Plans or Programs (in thousands) (2)
July 1 - July 31, 2020	—	$	—	—	$	500,000
August 1 - August 31, 2020	287,792	$	152.90	287,792	$	455,997
September 1 - September 30, 2020	624,955	$	149.51	624,941	$	362,560

___________________________________

(1)Consists primarily of activity under the 2020 Stock Repurchase Program and includes shares surrendered to the Company in connection with exercise of stock options as payment of exercise price, as well as for taxes associated with the vesting of restricted share grants.

(2)In July 2020, the Board of Directors approved the 2020 Stock Repurchase Program, under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000. Purchases of common stock under the 2020 Stock Repurchase Program may be exercised from time to time in the Company’s discretion and in such amounts as market conditions warrant. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice.

ITEM 3.    DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4.        MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5.        OTHER INFORMATION

None.

56

ITEM 6.        EXHIBITS

Exhibit No.		Description
3(i).1	—	Articles of Amendment and Restatement of Articles of Incorporation of the Company, dated as of June 4, 1998. (Incorporated by reference to Exhibit 3(i).1 to Form 10-K of the Company filed March 1, 2007.)
3(i).2	—	Articles of Amendment, dated as of October 2, 1998. (Incorporated by reference to Exhibit 3(i).2 to Form 10-K of the Company filed March 1, 2007.)
3(i).3	—	Articles of Amendment, dated as of May 22, 2013. (Incorporated by reference to Exhibit 3(i).3 to Form 8-K of the Company filed May 22, 2013.)
3(i).4	—	Articles of Amendment, dated as of May 14, 2020. (Incorporated by reference to Exhibit 3(i).4 to Form 8-K of the Company filed May 15, 2020.)
3(ii).1	—	Amended and Restated Bylaws of the Company, as adopted by the Board of Directors on November 12, 2015, and as further amended on February 16, 2017, November 9, 2017, and May 6, 2019. (Incorporated by reference to Exhibit 3(ii).1 to Form 10-Q of the Company filed August 6, 2019.)
10.1+	—	Third Amendment to AvalonBay Communities, Inc. Second Amended and Restated Equity Incentive Plan, dated September 16, 2020. (Filed herewith.)
31.1	—	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (Chief Executive Officer). (Filed herewith.)
31.2	—	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (Chief Financial Officer). (Filed herewith.)
32	—	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (Chief Executive Officer and Chief Financial Officer). (Furnished herewith.)
101	—	The following financial materials from AvalonBay Communities, Inc.'s Quarterly Report on Form 10-Q for the period ended September 30, 2020 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Comprehensive Income, (iii) the Condensed Consolidated Statements of Cash Flows and (iv) Notes to the Consolidated Financial Statements. (Filed herewith.)
104	—	Cover Page Interactive Data File (embedded within the Inline XBRL document). (Filed herewith.)

_______________________________________________________________________________

+    Management contract or compensatory plan or arrangement required to be filed or incorporated by reference as an exhibit to this Form 10-Q.

57

SIGNATURES

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

	AVALONBAY COMMUNITIES, INC.
Date:	November 4, 2020	/s/ Timothy J. Naughton
		Timothy J. Naughton
		Chairman, Chief Executive Officer and President
		(Principal Executive Officer)
Date:	November 4, 2020	/s/ Kevin P. O'Shea
		Kevin P. O'Shea
		Chief Financial Officer
		(Principal Financial Officer)

58

EX-10.1

AVALONBAY COMMUNITIES, INC.

Secretary’s Certificate

Second Amended and Restated 2009 Equity Incentive Plan

I, Edward M. Schulman, being the duly appointed, qualified and acting Secretary of

AvalonBay Communities, Inc., a Maryland corporation (the “Corporation”), hereby certify as follows:

1.I am the Secretary of the Corporation and as such, I am authorized to execute this Certificate on behalf of the Corporation.

2.On September 16, 2020, at a duly called and held meeting of the Board of Directors of the Corporation, the Board adopted a resolution amending the Company’s Second Amended and Restated 2009 Equity Incentive Plan, as follows:

Amendment to Stock Incentive Plan to Correct Errata.

Resolved:     That Section 2(g) of the Company’s Second Amended and Restated 2009 Equity Incentive Plan, as previously amended, be and hereby is amended to read as follows (deletions are bold and struck through, additions are bold and double underscored):

Minimum Vesting Requirements. Notwithstanding any other provision in the Plan to the contrary, the minimum restriction or vesting period with respect to any Award granted toan employeeunder the Plan to any person (including, without limitation, to an officer, employee, Non-Employee Director or other key person (including a consultant or prospective employee of the Company or any Subsidiary)) shall be no less than one year; provided that, notwithstanding the foregoing, such minimum vesting provision shall not apply in the following cases:

i.in the case of a grantee’s death, disability, retirement or termination of employment without cause, or (in the case of Performance-Based Awards) a Sale Event, and

ii.in the case of credits of Awards under Dividend Equivalent Rights associated with Restricted Stock Units, and

iii.in addition to the above exceptions, with respect to Awards made after the Effective Date and granted toemployees that result in the issuance of up to 5% of the shares of Stock reserved and available for issuance under the Plan as of the Effective Date pursuant to Section 3(a).

IN WITNESS WHEREOF, the undersigned has signed this certificate as of November 2, 2020.    

AVALONBAY COMMUNITIES, INC.

/s/ Edward M. Schulman

                            Name:    Edward M. Schulman

                            Title:    Secretary

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Timothy J. Naughton, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AvalonBay Communities, Inc.;

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 the 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 officers 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 officers 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 4, 2020

/s/ Timothy J. Naughton

Timothy J. Naughton

Chairman, Chief Executive Officer and President

(Principal Executive Officer)

1

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Kevin P. O'Shea, certify that:

1.I have reviewed this quarterly report on Form 10-Q of AvalonBay Communities, Inc.;

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 the 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 officers 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 officers 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 4, 2020

/s/ Kevin P. O'Shea

Kevin P. O'Shea

Chief Financial Officer

(Principal Financial Officer)

1

EX-32

Exhibit 32

CERTIFICATION

The undersigned officers of AvalonBay Communities, Inc. (the “Company”) hereby certify that the Company’s quarterly report on Form 10-Q to which this certification is attached (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 4, 2020

/s/ Timothy J. Naughton

Timothy J. Naughton

Chairman, Chief Executive Officer and President

(Principal Executive Officer)

/s/ Kevin P. O'Shea

Kevin P. O'Shea

Chief Financial Officer

(Principal Financial Officer)

This certification is being furnished and not filed, and shall not be incorporated into any document for any purpose, under the Securities Exchange Act of 1934 or the Securities Act of 1933.

1

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 30, 2020
Cover [Abstract]
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Entity File Number	1-12672
Entity Registrant Name	AVALONBAY COMMUNITIES, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	77-0404318
Entity Address, Address Line One	4040 Wilson Blvd., Suite 1000
Entity Address, Address City or Town	Arlington
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	22203
City Area Code	703
Local Phone Number	329-6300
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	AVB
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		139,608,983
Entity Central Index Key	0000915912
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Real estate:
Land and improvements	$ 4,392,228	$ 4,299,162
Buildings and improvements	17,093,580	16,668,496
Furniture, fixtures and equipment	913,687	829,242
Gross operating real estate	22,399,495	21,796,900
Less accumulated depreciation	(5,644,219)	(5,164,398)
Net operating real estate	16,755,276	16,632,502
Construction in progress, including land	1,200,502	1,303,751
Land held for development	43,494	0
For-sale condominium inventory	298,429	457,809
Real estate assets held for sale, net	0	38,927
Net operating real estate	18,297,701	18,432,989
Cash and cash equivalents	87,530	39,687
Cash in escrow	94,870	87,927
Resident security deposits	31,949	34,224
Investments in unconsolidated real estate entities	194,317	165,806
Deferred development costs	73,748	70,486
Prepaid expenses and other assets	206,873	164,971
Right of use lease assets	157,623	124,961
Total assets	19,144,611	19,121,051
LIABILITIES AND EQUITY
Unsecured notes, net	6,700,250	6,358,648
Variable rate unsecured credit facility	0	0
Mortgage notes payable, net	863,396	937,642
Dividends payable	225,025	215,414
Payables for construction	88,040	92,135
Accrued expenses and other liabilities	292,275	274,013
Lease liabilities	182,859	140,468
Accrued interest payable	62,248	47,154
Resident security deposits	57,683	61,752
Liabilities related to real estate assets held for sale	0	375
Total liabilities	8,471,776	8,127,601
Commitments and contingencies
Redeemable noncontrolling interests	2,593	3,252
Equity:
Preferred Stock, Value, Issued	0	0
Common Stock, Value, Issued	1,398	1,406
Additional paid-in capital	10,681,158	10,736,733
Accumulated earnings less dividends	29,705	282,913
Accumulated other comprehensive loss	(42,617)	(31,503)
Stockholders' Equity Attributable to Parent	10,669,644	10,989,549
Stockholders' Equity Attributable to Noncontrolling Interest	598	649
Total equity	10,670,242	10,990,198
Total liabilities and equity	$ 19,144,611	$ 19,121,051

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, liquidation preference (in dollars per share)	$ 25	$ 25
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	280,000,000	280,000,000
Common stock, shares issued (in shares)	139,828,685	140,643,962
Common stock, shares outstanding (in shares)	139,828,685	140,643,962

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Rental and other income	$ 566,387	$ 586,382	$ 1,742,509	$ 1,727,576
Management, development and other fees	1,017	1,231	2,950	3,484
Total revenue	567,404	587,613	1,745,459	1,731,060
Expenses:
Operating expenses, excluding property taxes	143,909	133,445	406,991	389,825
Property taxes	68,934	64,374	202,973	187,890
Interest expense, net	53,249	51,493	162,562	149,395
(Gain) loss on extinguishment of debt, net	(105)	93	9,333	602
Depreciation expense	175,348	165,463	529,508	490,213
General and administrative expense	13,985	12,769	46,878	45,440
Expensed transaction, development and other pursuit costs, net of recoveries	567	175	4,289	2,562
Total expenses	455,887	427,812	1,362,534	1,265,927
Equity in income of unconsolidated real estate entities	5,083	1,643	6,770	780
Gain on sale of communities	31,607	130,484	91,338	165,849
Gain on other real estate transactions, net	129	73	328	374
Gain on for-sale condominiums, net of marketing and administrative costs	(646)	(1,108)	4,162	(2,526)
Income before income taxes	147,690	290,893	485,523	629,610
Income tax benefit (expense)	27	(11,184)	1,069	(11,178)
Net income	147,717	279,709	486,592	618,432
Net income attributable to noncontrolling interests	(14)	(32)	(90)	(108)
Net income attributable to common stockholders	147,703	279,677	486,502	618,324
Other comprehensive income (loss):
Gain (loss) on cash flow hedges	1,333	(13,644)	(17,731)	(23,763)
Cash flow hedge losses reclassified to earnings	2,367	1,746	6,617	4,825
Comprehensive income	$ 151,403	$ 267,779	$ 475,388	$ 599,386
Earnings per common share - basic:
Net income attributable to common stockholders (in dollars per share)	$ 1.05	$ 2.00	$ 3.46	$ 4.44
Earnings per common share - diluted:
Net income attributable to common stockholders (in dollars per share)	$ 1.05	$ 2.00	$ 3.46	$ 4.43

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income	$ 486,592	$ 618,432
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation expense	529,508	490,213
Amortization of deferred financing costs	5,617	5,458
Amortization of debt discount	1,321	1,186
(Gain) loss on extinguishment of debt, net	9,333	602
Amortization of stock-based compensation	17,753	20,810
Equity in loss of, and return on, unconsolidated real estate entities and noncontrolling interests, net of eliminations	5,204	10,787
Abandonment of development pursuits	2,095	1,080
Cash flow hedge losses reclassified to earnings	6,617	4,825
Gain on sale of real estate assets	(96,823)	(166,223)
Gain on for-sale condominiums	(8,174)	0
Increase in resident security deposits, prepaid expenses and other assets	(36,332)	(29,804)
Increase in accrued expenses, other liabilities and accrued interest payable	39,363	57,556
Net cash provided by operating activities	962,074	1,014,922
Cash flows from investing activities:
Development/redevelopment of real estate assets including land acquisitions and deferred development costs	(562,334)	(791,551)
Acquisition of real estate assets, including partnership interest	0	(286,804)
Capital expenditures - existing real estate assets	(76,860)	(92,825)
Capital expenditures - non-real estate assets	(24,720)	(4,223)
Mortgage note receivable payments	(4,095)	(3,390)
Decrease in payables for construction	186,090	421,735
Proceeds from the sale of for-sale condominiums, net of selling costs	170,604	0
Mortgage note receivable lending	(260)	(565)
Mortgage note receivable payments	3,419	978
Proceeds from Sale of Equity Method Investments	9,877	694
Investments in unconsolidated real estate entities	(23,044)	(1,253)
Net cash used in investing activities	(321,323)	(757,204)
Cash flows from financing activities:
Issuance of common stock, net	1,599	207,789
Payments for Repurchase of Common Stock	(137,458)	0
Dividends paid	(661,000)	(627,467)
Issuance of mortgage notes payable	51,000	30,250
Repayments of mortgage notes payable, including prepayment penalties	(125,427)	(160,709)
Issuance of unsecured notes	1,296,581	449,804
Repayment of unsecured notes, including prepayment penalties	(958,681)	0
Payment of deferred financing costs	(11,278)	(10,910)
Payment for termination of forward interest rate swaps	(25,135)	(12,309)
(Payment to) contribution from noncontrolling interest	(59)	455
Payments related to tax withholding for share-based compensation	(14,752)	(15,961)
Distributions to DownREIT partnership unitholders	(36)	(34)
Distributions to joint venture and profit-sharing partners	(319)	(336)
Preferred interest obligation redemption and dividends	(1,000)	(1,400)
Net cash used in financing activities	(585,965)	(140,828)
Net increase in cash, cash equivalents and cash in escrow	54,786	116,890
Cash, cash equivalents and cash in escrow, beginning of period	127,614	217,864
Cash, cash equivalents and cash in escrow, end of period	182,400	334,754
Cash paid during the period for interest, net of amount capitalized	133,913	114,400
Supplemental Cash Flow Information [Abstract]
Cash, cash equivalents and cash in escrow reported in the Condensed Consolidated Statements of Cash Flows	$ 182,400	$ 334,754

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($) Lease	Sep. 30, 2020 USD ($) Lease shares	Sep. 30, 2019 USD ($) shares	Jan. 01, 2019 USD ($)
Supplemental disclosures of non-cash investing and financing activities
Common stock issued through the dividend reinvestment plan (in shares) | shares		1,967	1,594
Common stock issued through the dividend reinvestment plan		$ 339	$ 314
Number of shares withheld to satisfy employees' tax withholding and other liabilities (in shares) | shares		73,103	83,602
Shares withheld to satisfy employees' tax withholding and other liabilities, value		$ 14,752	$ 15,961
Stock issued during period, shares, share-based compensation, forfeited (in shares) | shares		7,421
Stock issued during period, value, share-based compensation, forfeited		$ 1,187	305
Dividends declared but not paid	$ 225,025	225,025
Change in redemption value of redeemable noncontrolling interest	(62)
Cash flow hedge losses reclassified to earnings	2,367	6,617	4,825
Operating Lease, Right-of-Use Asset	135,885	135,885
Total lease liabilities	162,683	162,683
Increase (Decrease) in Derivative Liabilities			$ 17,824
Increase (Decrease) in Derivative Assets		$ 1,413
Restricted Stock and Restricted Stock Converted From Performance Shares
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares) | shares		165,426	150,359
Restricted Stock Converted From Performance Shares
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares) | shares		96,317	73,072
Restricted stock
Supplemental disclosures of non-cash investing and financing activities
Equity instruments granted (in shares) | shares		69,109	77,287
Fair value of shares issued		$ 15,285	$ 15,145
Stock issued during period, shares, share-based compensation, forfeited (in shares) | shares		7,421	1,730
Common stock
Supplemental disclosures of non-cash investing and financing activities
Dividends declared but not paid	223,391	$ 223,391	$ 213,070
Accumulated earnings less dividends
Supplemental disclosures of non-cash investing and financing activities
Change in redemption value of redeemable noncontrolling interest	(62)	(387)	$ 382
Accounting Standards Update 2016-02
Supplemental disclosures of non-cash investing and financing activities
Operating Lease, Right-of-Use Asset				$ 122,276
Total lease liabilities				$ 122,276
New Office Leases
Supplemental disclosures of non-cash investing and financing activities
Operating Lease, Right-of-Use Asset	$ 46,875	$ 46,875
Number of New Office Leases | Lease	2	2
Total lease liabilities	$ 46,875	$ 46,875

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Organization, Basis of Presentation and Significant Accounting Policies

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Organization, Basis of Presentation and Significant Accounting Policies

Organization, Basis of Presentation and Significant Accounting Policies

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries), is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986 (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion markets in Southeast Florida and Denver, Colorado (the "Expansion Markets").

At September 30, 2020, the Company owned or held a direct or indirect ownership interest in 275 operating apartment communities containing 80,292 apartment homes in 11 states and the District of Columbia, of which one community containing 344 apartment homes was under redevelopment. In addition, the Company owned or held a direct or indirect ownership interest in 19 communities under development that are expected to contain an aggregate of 6,384 apartment homes when completed, as well as The Park Loggia, which contains 172 for-sale residential condominiums, of which 59 have been sold as of September 30, 2020, and 67,000 square feet of commercial space, of which 64% has been leased as of September 30, 2020. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 27 communities that, if developed as expected, will contain an estimated 9,320 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's 2019 Annual Report on Form 10-K. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Basic and diluted shares outstanding
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Weighted average DownREIT units outstanding	7,500		7,500		7,500		7,500
Effect of dilutive securities	324,648		505,032		328,865		498,609
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Net income allocated to unvested restricted shares	(342)		(704)		(1,158)		(1,655)
Net income attributable to common stockholders, adjusted	$	147,361	$	278,973	$	485,344	$	616,669
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Earnings per common share - basic	$	1.05	$	2.00	$	3.46	$	4.44
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships	12		11		36		34
Adjusted net income attributable to common stockholders	$	147,715	$	279,688	$	486,538	$	618,358
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Earnings per common share - diluted	$	1.05	$	2.00	$	3.46	$	4.43

All options to purchase shares of common stock outstanding as of September 30, 2020 and 2019 are included in the computation of diluted earnings per share.

Derivative Instruments and Hedging Activities

The Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivative transactions for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an on-going basis. Hedge ineffectiveness is reported as a component of interest expense, net. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair value of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivative positions that the Company has determined qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in other comprehensive loss. Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that the Company has determined qualified as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding debt being hedged. See Note 11, "Fair Value," for further discussion of derivative financial instruments.

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

Acquisitions of Investments in Real Estate

The Company accounts for acquisitions of investments in real estate in accordance with the authoritative guidance for the initial measurement, which first requires that the Company determine if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company must identify and determine the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. In making estimates of fair values for purposes of allocating purchase price, the Company utilizes various sources, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the allocation of the purchase price is based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be viewed as asset acquisitions.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

Certain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity and segment classification.

For-Sale Condominium Inventory

The Company presents for-sale condominium inventory at historical cost and evaluates the condominium inventory for impairment when potential indicators exist, as further discussed in Note 6, "Real Estate Disposition Activities." 

Leases

The Company is party to leases as both a lessor and a lessee, primarily as follows:

•lessor of residential and commercial space within its apartment communities; and

•lessee under (i) ground leases for land underlying current operating or development communities and (ii) office leases for its corporate headquarters and regional offices.

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration. The Company’s leases include both fixed and variable lease payments, which are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Lease payments included in the lease liability include only payments that depend on an index or rate. For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates as well as indicative market pricing for longer term rates and taking into consideration the remaining term of each of the lease agreements.

Lessor Considerations

The Company evaluates leases in which it is the lessor, which are composed of residential and commercial leases at its apartment communities, and determined these leases to be operating leases. For lease agreements that provide for rent concessions and/or scheduled fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have fixed-price renewal options, and the lessee may be able to exercise its renewal option at an amount less than the fair value of the rent at such time. The Company only includes renewal options in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

Revenue and Gain Recognition

Revenue from contracts with customers is recognized in accordance with the transfer of goods and services to customers at an amount that reflects the consideration that the Company expects to be entitled to for those goods and services. The majority of the Company’s revenue is derived from residential and commercial rental income and other lease income, which are accounted for under ASC 842, Leases, discussed above. The Company's revenue streams that are not accounted for under ASC 842 include (i) management fees, (ii) rental and non-rental related income and (iii) gains or losses on the sale of real estate.

The following table provides details of the Company’s revenue streams disaggregated by the Company’s reportable operating segments, further discussed in Note 8, “Segment Reporting,” for the three and nine months ended September 30, 2020 and 2019. Segment information for total revenue has been adjusted to exclude the real estate assets that were sold from January 1, 2019 through September 30, 2020, or otherwise qualify as held for sale as of September 30, 2020, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	For the three months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	1,017	$	1,017
Rental and non-rental related income (2)	1,959		477		337		—		2,773
Total non-lease revenue (3)	1,959		477		337		1,017		3,790
Lease income (4)	506,587		34,333		20,963		—		561,883
Business interruption insurance proceeds	12		270		—		—		282
Total revenue	$	508,558	$	35,080	$	21,300	$	1,017	$	565,955
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	1,231	$	1,231
Rental and non-rental related income (2)	1,796		445		133		—		2,374
Total non-lease revenue (3)	1,796		445		133		1,231		3,605
Lease income (4)	539,634		29,754		8,219		—		577,607
Business interruption insurance proceeds	307		—		—		—		307
Total revenue	$	541,737	$	30,199	$	8,352	$	1,231	$	581,519

	For the nine months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	2,950	$	2,950
Rental and non-rental related income (2)	5,416		1,271		884		—		7,571
Total non-lease revenue (3)	5,416		1,271		884		2,950		10,521
Lease income (4)	1,567,170		103,705		57,519		—		1,728,394
Business interruption insurance proceeds	115		270		—		—		385
Total revenue	$	1,572,701	$	105,246	$	58,403	$	2,950	$	1,739,300
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	3,484	$	3,484
Rental and non-rental related income (2)	5,753		1,078		224		—		7,055
Total non-lease revenue (3)	5,753		1,078		224		3,484		10,539
Lease income (4)	1,599,224		76,671		15,596		—		1,691,491
Business interruption insurance proceeds	914		—		—		—		914
Total revenue	$	1,605,891	$	77,749	$	15,820	$	3,484	$	1,702,944

__________________________________

(1)Revenue represents third-party management, asset management and developer fees and miscellaneous income which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, including but not limited to, apartment hold fees and application fees, as well as revenue streams not related to leasing activities, including but not limited to, vendor revenue sharing, building advertising, vending and dry cleaning revenue.

(3)Represents all revenue accounted for under ASU 2014-09.

(4)Amounts include all revenue streams derived from residential and commercial rental income and other lease income, which are accounted for under ASC 842.

Due to the nature and timing of the Company’s identified revenue streams, there are no material amounts of outstanding or unsatisfied performance obligations as of September 30, 2020.

COVID-19 Pandemic

In March 2020, the World Health Organization designated COVID-19 as a pandemic. While the Company has taken various actions in response to the COVID-19 pandemic, the ultimate impact on its consolidated results of operations, cash flows, financial condition and liquidity will depend on (i) the duration and severity of the pandemic, (ii) the duration and nature of governmental responses to contain the spread of the disease and assist consumers and businesses, (iii) consumer and business responses to the pandemic, including preference for where and how to live and work, and (iv) how quickly and to what extent normal economic and operating conditions can resume. Because of this uncertainty, the Company is not able to estimate the expected impact of the COVID-19 pandemic on its results of operations, cash flows, financial condition, or liquidity for the year ending December 31, 2020 at this time.

As of September 30, 2020, the Company assessed the collectibility of the outstanding lease income receivables as a result of the impact of the COVID-19 pandemic on its residential and commercial lease portfolios. The Company recorded an aggregate offset to income for uncollectible lease revenue for its residential and commercial portfolios of $18,755,000 and $43,034,000 for the three and nine months ended September 30, 2020, respectively, under ASC 842 and ASC 450, Contingencies.

Recently Issued and Adopted Accounting Standards

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This ASU requires entities to estimate a lifetime expected credit loss for most financial assets, including (i) trade and other receivables, (ii) other long term financings including available for sale and held-to-maturity debt securities and (iii) loans. Subsequently, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, which amends the scope of ASU 2016-13 and clarified that receivables arising from operating leases are not within the scope of the standard and should continue to be accounted for in accordance with the leases standard (Topic 842). The new standard was adopted on January 1, 2020 and does not have a material effect on the Company’s financial position or results of operations.

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Interest Capitalized	9 Months Ended
	Sep. 30, 2020
Interest Capitalized
Interest Capitalized	Interest CapitalizedThe Company capitalizes interest during the development and redevelopment of real estate assets. Capitalized interest associated with the Company's development or redevelopment activities totaled $11,221,000 and $15,443,000 for the three months ended September 30, 2020 and 2019, respectively, and $33,738,000 and $50,159,000 for the nine months ended September 30, 2020 and 2019, respectively.

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Mortgage Notes Payable, Unsecured Notes and Credit Facility

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Notes Payable, Unsecured Notes and Credit Facility

Mortgage Notes Payable, Unsecured Notes, Term Loans and Credit Facility

The Company's mortgage notes payable, unsecured notes, variable rate unsecured term loans (the "Term Loans") and Credit Facility, as defined below, as of September 30, 2020 and December 31, 2019 are summarized below. The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of September 30, 2020 and December 31, 2019, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities").

	9/30/2020		12/31/2019
Fixed rate unsecured notes (1)	$	6,500,000	$	5,850,000
Variable rate unsecured notes (1)	—		300,000
Term Loans (1)	250,000		250,000
Fixed rate mortgage notes payable - conventional and tax-exempt (2)	409,649		479,221
Variable rate mortgage notes payable - conventional and tax-exempt (2)	471,450		476,150
Total mortgage notes payable and unsecured notes and Term Loans	7,631,099		7,355,371
Credit Facility	—		—
Total mortgage notes payable, unsecured notes, Term Loans and Credit Facility	$	7,631,099	$	7,355,371

_____________________________________

(1)Balances at September 30, 2020 and December 31, 2019 exclude $10,782 and $8,610, respectively, of debt discount, and $38,968 and $32,742, respectively, of deferred financing costs, as reflected in unsecured notes, net on the accompanying Condensed Consolidated Balance Sheets.

(2)Balances at September 30, 2020 and December 31, 2019 exclude $14,636 and $14,464, respectively, of debt discount, and $3,067 and $3,265, respectively, of deferred financing costs, as reflected in mortgage notes payable, net on the accompanying Condensed Consolidated Balance Sheets.

The following debt activity occurred during the nine months ended September 30, 2020:

•In February 2020, the Company issued $700,000,000 principal amount of unsecured notes in a public offering under its existing shelf registration statement for net proceeds of approximately $694,701,000. The notes mature in March 2030 and were issued at a 2.30% interest rate.

•In February 2020, the Company refinanced the secured borrowing for Avalon San Bruno III. The secured borrowing had a fixed interest rate of 3.08% and was refinanced for a principal balance of $51,000,000, with a fixed interest rate of 2.38% and maturity date of March 2027.

•In March 2020, the Company repaid (i) $400,000,000 principal amount of its 3.625% unsecured notes in advance of the October 2020 scheduled maturity and (ii) $250,000,000 principal amount of its 3.95% unsecured notes in advance of the January 2021 scheduled maturity. In conjunction with these repayments, the Company recognized a loss on debt extinguishment of $9,170,000 for prepayment penalties and the non-cash write-off of unamortized deferred financing costs.

•In May 2020, the Company issued $600,000,000 principal amount of unsecured notes in a public offering under its existing shelf registration statement for net proceeds of approximately $593,430,000. The notes mature in January 2031 and were issued at a 2.45% interest rate.

•In May 2020, the Company repaid $300,000,000 principal amount of its variable rate unsecured notes in advance of the January 2021 scheduled maturity, recognizing a charge of $268,000 for the non-cash write-off of deferred financing costs.

•In August 2020, the Company repaid $67,904,000 principal amount of 4.18% fixed rate debt secured by Avalon Hoboken at par in advance of its December 2020 maturity date.

At September 30, 2020, the Company had a $1,750,000,000 revolving variable rate unsecured credit facility with a syndicate of banks (the “Credit Facility”) which matures in February 2024. The Credit Facility bears interest at varying levels based on (i) the London Interbank Offered Rate (“LIBOR”) applicable to the period of borrowing for a particular draw of funds from the facility (e.g., one month to maturity, three months to maturity, etc.) and (ii) the rating levels issued for our unsecured notes. The current stated pricing for drawn borrowings is LIBOR plus 0.775% per annum (0.92% at September 30, 2020), assuming a one month borrowing rate. The annual facility fee is 0.125% (or approximately $2,188,000 annually based on the $1,750,000,000 facility size and based on the Company's current credit rating).

The Company had no borrowings outstanding under the Credit Facility as of September 30, 2020 and December 31, 2019. The Company had $3,752,000 and $11,488,000 outstanding in letters of credit that reduced the borrowing capacity as of September 30, 2020 and December 31, 2019, respectively. In addition, the Company had $31,822,000 and $24,939,000 outstanding in additional letters of credit on a separate facility unrelated to the Credit Facility as of September 30, 2020 and December 31, 2019, respectively.

In the aggregate, secured notes payable mature at various dates from April 2021 through July 2066, and are secured by certain apartment communities (with a net carrying value of $1,455,524,000, excluding communities classified as held for sale, as of September 30, 2020).

The weighted average interest rate of the Company's fixed rate secured notes payable (conventional and tax-exempt) was 3.8% and 3.9% at September 30, 2020 and December 31, 2019, respectively. The weighted average interest rate of the Company's variable rate secured notes payable (conventional and tax-exempt) including the effect of certain financing related fees, was 1.7% and 3.2% at September 30, 2020 and December 31, 2019, respectively.

Scheduled payments and maturities of secured notes payable and unsecured notes outstanding at September 30, 2020 are as follows (dollars in thousands):

Year	Secured notes principal payments		Secured notes maturities		Unsecured notes and Term Loans maturities		Stated interest rate of unsecured notes and Term Loans
2020	$	1,285	$	—	$	—	N/A
2021	9,304		27,844		—		N/A
2022	9,918		—		450,000		2.950	%
					100,000		LIBOR + 0.90%
2023	10,739		—		350,000		4.200	%
					250,000		2.850	%
2024	11,677		—		300,000		3.500	%
					150,000		LIBOR + 0.85%
2025	12,408		—		525,000		3.450	%
					300,000		3.500	%
2026	13,445		—		475,000		2.950	%
					300,000		2.900	%
2027	15,080		236,100		400,000		3.350	%
2028	20,607		—		450,000		3.200	%
2029	11,742		66,250		450,000		3.300	%
Thereafter	189,362		245,338		700,000		2.300	%
					600,000		2.450	%
					350,000		3.900	%
					300,000		4.150	%
					300,000		4.350	%
	$	305,567	$	575,532	$	6,750,000

The Company was in compliance at September 30, 2020 with customary financial covenants under the Credit Facility, the Term Loans and the Company's fixed rate unsecured notes.

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Equity

9 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

Equity

Equity

The following summarizes the changes in equity for the nine months ended September 30, 2020 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2019	$	1,406	$	10,736,733	$	282,913	$	(31,503)	$	10,989,549	$	649	$	10,990,198
Net income attributable to common stockholders	—		—		167,971		—		167,971		—		167,971
Loss on cash flow hedges, net	—		—		—		(17,603)		(17,603)		—		(17,603)
Cash flow hedge losses reclassified to earnings	—		—		—		1,949		1,949		—		1,949
Change in redemption value of redeemable noncontrolling interest	—		—		471		—		471		—		471
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(35)		(35)
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,083)		—		(224,083)		—		(224,083)
Issuance of common stock, net of withholdings	1		(12,492)		(1,616)		—		(14,107)		—		(14,107)
Amortization of deferred compensation	—		7,781		—		—		7,781		—		7,781
Balance at March 31, 2020	$	1,407	$	10,732,022	$	225,656	$	(47,157)	$	10,911,928	$	614	$	10,912,542
Net income attributable to common stockholders	—		—		170,828		—		170,828		—		170,828
Loss on cash flow hedges, net	—		—		—		(1,461)		(1,461)		—		(1,461)
Cash flow hedge losses reclassified to earnings	—		—		—		2,301		2,301		—		2,301
Change in redemption value of redeemable noncontrolling interest	—		—		(146)		—		(146)		—		(146)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		1		1
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,172)		—		(224,172)		—		(224,172)
Issuance of common stock, net of withholdings	—		1,050		138		—		1,188		—		1,188
Amortization of deferred compensation	—		9,724		—		—		9,724		—		9,724
Balance at June 30, 2020	$	1,407	$	10,742,796	$	172,304	$	(46,317)	$	10,870,190	$	615	$	10,870,805
Net income attributable to common stockholders	—		—		147,703		—		147,703		—		147,703
Gain on cash flow hedges, net	—		—		—		1,333		1,333		—		1,333
Cash flow hedge losses reclassified to earnings	—		—		—		2,367		2,367		—		2,367
Change in redemption value of redeemable noncontrolling interest	—		—		62		—		62		—		62
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(17)		(17)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,694)		—		(222,694)		—		(222,694)
Issuance of common stock, net of withholdings	—		105		—		—		105		—		105
Repurchase of common stock, including repurchase costs	(9)		(69,779)		(67,670)		—		(137,458)		—		(137,458)
Amortization of deferred compensation	—		8,036		—		—		8,036		—		8,036
Balance at September 30, 2020	$	1,398	$	10,681,158	$	29,705	$	(42,617)	$	10,669,644	$	598	$	10,670,242

The following summarizes the changes in equity for the nine months ended September 30, 2019 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2018	$	1,385	$	10,306,588	$	350,777	$	(26,144)	$	10,632,606	$	—	$	10,632,606
Net income attributable to common stockholders	—		—		170,366		—		170,366		—		170,366
Loss on cash flow hedges, net	—		—		—		(7,231)		(7,231)		—		(7,231)
Cash flow hedge losses reclassified to earnings	—		—		—		1,468		1,468		—		1,468
Change in redemption value of redeemable noncontrolling interest	—		—		(224)		—		(224)		—		(224)
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,166)		—		(212,166)		—		(212,166)
Issuance of common stock, net of withholdings	9		143,202		(1,892)		—		141,319		—		141,319
Amortization of deferred compensation	—		7,861		—		—		7,861		—		7,861
Balance at March 31, 2019	$	1,394	$	10,457,651	$	306,861	$	(31,907)	$	10,733,999	$	—	$	10,733,999
Net income attributable to common stockholders	—		—		168,281		—		168,281		—		168,281
Loss on cash flow hedges, net	—		—		—		(2,888)		(2,888)		—		(2,888)
Cash flow hedge losses reclassified to earnings	—		—		—		1,611		1,611		—		1,611
Change in redemption value of redeemable noncontrolling interest	—		—		(45)		—		(45)		—		(45)
Noncontrolling interests income allocation	—		—		—		—		—		530		530
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,549)		—		(212,549)		—		(212,549)
Issuance of common stock, net of withholdings	3		50,803		—		—		50,806		—		50,806
Amortization of deferred compensation	—		10,785		—		—		10,785		—		10,785
Balance at June 30, 2019	$	1,397	$	10,519,239	$	262,548	$	(33,184)	$	10,750,000	$	530	$	10,750,530
Net income attributable to common stockholders	—		—		279,677		—		279,677		—		279,677
Loss on cash flow hedges, net	—		—		—		(13,644)		(13,644)		—		(13,644)
Cash flow hedge losses reclassified to earnings	—		—		—		1,746		1,746		—		1,746
Change in redemption value of redeemable noncontrolling interest	—		—		(113)		—		(113)		—		(113)
Noncontrolling interests income allocation	—		—		—		—		—		118		118
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,526)		—		(212,526)		—		(212,526)
Issuance of common stock, net of withholdings	—		(454)		(263)		—		(717)		—		(717)
Amortization of deferred compensation	—		10,002		—		—		10,002		—		10,002
Balance at September 30, 2019	$	1,397	$	10,528,787	$	329,323	$	(45,082)	$	10,814,425	$	648	$	10,815,073

As of September 30, 2020 and December 31, 2019, the Company's charter had authorized for issuance a total of 280,000,000 shares of common stock and 50,000,000 shares of preferred stock.

During the nine months ended September 30, 2020, the Company:

i.issued 1,902 shares of common stock in connection with stock options exercised;

ii.issued 1,967 common shares through the Company's dividend reinvestment plan;

iii.issued 165,426 common shares in connection with restricted stock grants and the conversion of performance awards to restricted shares;

iv.withheld 73,103 common shares to satisfy employees' tax withholding and other liabilities;

v.issued 8,685 common shares through the Employee Stock Purchase Plan;

vi.canceled 7,421 common shares of restricted stock upon forfeiture; and

vii.purchased 912,733 common shares through the 2020 Stock Repurchase Program.

Any deferred compensation related to the Company's stock option, restricted stock and performance award grants during the nine months ended September 30, 2020 is not reflected on the accompanying Condensed Consolidated Balance Sheets as of September 30, 2020, and will not be reflected until recognized as compensation cost.

In July 2020, the Company’s Board of Directors voted to terminate the Company’s prior $500,000,000 Stock Repurchase Program (the "Amended 2005 Stock Repurchase Program") and approved a new stock repurchase program under which the Company may acquire shares of its common stock in open market or negotiated transactions up to an aggregate purchase price of $500,000,000 (the "2020 Stock Repurchase Program"). Purchases of common stock under the 2020 Stock Repurchase Program may be exercised from time to time in the Company’s discretion and in such amounts as market conditions warrant. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, market conditions and other corporate liquidity requirements and priorities. The 2020 Stock Repurchase Program does not have an expiration date and may be suspended or terminated at any time without prior notice. During the three months ended September 30, 2020, the Company repurchased 912,733 shares of common stock at an average price of $150.58 per share. As of September 30, 2020, the Company had $362,560,000 remaining authorized for purchase under this program.

In May 2019, the Company commenced a fifth continuous equity program ("CEP V") under which the Company may sell (and/or enter into forward sale agreements for the sale of) up to $1,000,000,000 of its common stock from time to time. Actual sales will depend on a variety of factors to be determined by the Company, including market conditions, the trading price of the Company's common stock and determinations by the Company of the appropriate sources of funding for the Company. In conjunction with CEP V, the Company engaged sales agents who will receive compensation of up to 1.5% of the gross sales price for shares sold. The Company expects that, if entered into, it will physically settle each forward sale agreement on one or more dates specified by the Company on or prior to the maturity date of that particular forward sale agreement, in which case the Company will expect to receive aggregate net cash proceeds at settlement equal to the number of shares underlying the particular forward agreement multiplied by the relevant forward sale price. However, the Company may also elect to cash settle or net share settle a forward sale agreement. In connection with each forward sale agreement, the Company will pay the relevant forward seller, in the form of a reduced initial forward sale price, a commission of up to 1.5% of the sales prices of all borrowed shares of common stock sold. During the three and nine months ended September 30, 2020, the Company had no sales under the program. As of September 30, 2020, the Company had $752,878,000 remaining authorized for issuance under this program.

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Investments in Real Estate Entities

9 Months Ended

Sep. 30, 2020

Equity Method Investments and Joint Ventures [Abstract]

Investments in Real Estate Entities

Investments in Real Estate Entities

Investments in Unconsolidated Real Estate Entities

As of September 30, 2020, the Company had investments in eight unconsolidated real estate entities with ownership interest percentages ranging from 20.0% to 50.0%. The Company accounts for its investments in unconsolidated real estate entities under the equity method of accounting. The significant accounting policies of the Company's unconsolidated real estate entities are consistent with those of the Company in all material respects.

During the three and nine months ended September 30, 2020, Archstone Multifamily Partners AC LP (the "U.S. Fund") sold Avalon Venice on Rose, located in Venice, CA, containing 70 apartment homes and 9,000 square feet of commercial space for $65,000,000. The Company's share of the gain was $5,157,000. In conjunction with the disposition of this community, the U.S. Fund repaid $27,117,000 of secured indebtedness at par.

During the three and nine months ended September 30, 2020, the Company entered into a joint venture to develop, own, and operate AVA Arts District, an apartment community located in Los Angeles, CA, which is currently under construction and expected to contain 475 apartment homes when complete. The Company has a 25.0% interest in the venture, and the venture partner owns the remaining 75.0% interest. The Company's total expected equity investment is approximately $27,600,000, of which $14,800,000 has already been contributed. The venture has secured a $165,600,000 variable rate construction loan to fund approximately 60% of the development of AVA Arts District, of which no amounts have been drawn as of September 30, 2020. The venture will commence draws under the loan subsequent to required equity contributions by the venture partners. The Company has guaranteed the construction loan on behalf of the venture, and any obligations under the construction loan guarantee, except for obligations arising from misconduct by the Company, are required capital contributions of the partners based on ownership interest. The venture is considered an unconsolidated VIE as the Company was not considered to be the primary beneficiary due to shared control and decision making with its venture partner. The Company and its venture partner share decision making authority for all significant aspects of the venture's activities including, but not limited to, changes in the ownership, changes to the development plan or budget, and major operating decisions including annual business plans.

The following is a combined summary of the financial position of the entities accounted for using the equity method discussed above as of the dates presented, including development joint ventures started and unconsolidated communities sold during the respective periods (dollars in thousands):

	9/30/2020		12/31/2019
	(unaudited)
Assets:
Real estate, net	$	1,222,762	$	1,204,470
Other assets	265,048		196,488
Total assets	$	1,487,810	$	1,400,958
Liabilities and partners' capital:
Mortgage notes payable, net (1)	$	749,555	$	782,257
Other liabilities	158,875		157,379
Partners' capital	579,380		461,322
Total liabilities and partners' capital	$	1,487,810	$	1,400,958

_________________________________

(1)    The Company has not guaranteed the outstanding debt, nor does the Company have any obligation to fund this debt should the unconsolidated entity be unable to do so.

The following is a combined summary of the operating results of the entities accounted for using the equity method discussed above for the periods presented (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
	(unaudited)				(unaudited)
Rental and other income	$	28,800	$	37,382	$	92,299	$	108,635
Operating and other expenses	(12,782)		(14,535)		(37,034)		(42,624)
Gain on sale of communities	18,408		—		18,448		—
Interest expense, net	(8,024)		(8,385)		(24,133)		(25,482)
Depreciation expense	(8,704)		(9,324)		(26,106)		(49,366)
Net income (loss)	$	17,698	$	5,138	$	23,474	$	(8,837)
Company's share of net income (loss) (1)	$	5,611	$	2,175	$	8,357	$	2,377
Amortization of excess investment and other	(528)		(532)		(1,587)		(1,597)
Equity in income from unconsolidated real estate investments	$	5,083	$	1,643	$	6,770	$	780

_________________________________

(1)    Includes the Company's share of gain on sale of communities.

Expensed Transaction, Development and Other Pursuit Costs

The Company capitalizes pre-development costs incurred in pursuit of new development opportunities for which the Company currently believes future development is probable ("Development Rights"). Future development of these Development Rights is dependent upon various factors, including zoning and regulatory approval, rental market conditions, construction costs and the availability of capital. Initial pre-development costs incurred for pursuits for which future development is not yet considered probable are expensed as incurred. In addition, if the status of a Development Right changes, making future development by the Company no longer probable, any non-recoverable capitalized pre-development costs are expensed. The Company expensed costs related to development pursuits not yet considered probable for development and the abandonment of Development Rights, as well as costs incurred in pursuing the acquisition or disposition of assets for which such acquisition and disposition activity did not occur, in the amounts of $4,289,000 and $2,562,000 for the nine months ended September 30, 2020 and 2019, respectively. These costs are included in expensed transaction, development and other pursuit costs, net of recoveries on the accompanying Condensed Consolidated Statements of Comprehensive Income. Abandoned pursuit costs can vary greatly, and the costs incurred in any given period may be significantly different in future periods.

Casualty and Impairment of Long-Lived Assets

In the Company's evaluation of its real estate portfolio for impairment, as discussed below, it considered the impact of the COVID-19 pandemic and did not identify any indicators of impairment as a result.

The Company evaluates its real estate and other long-lived assets for impairment when potential indicators of impairment exist. Such assets are stated at cost, less accumulated depreciation and amortization, unless the carrying amount of the asset is not recoverable. If events or circumstances indicate that the carrying amount of a property or long-lived asset may not be recoverable, the Company assesses its recoverability by comparing the carrying amount of the property or long-lived asset to its estimated undiscounted future cash flows. If the carrying amount exceeds the aggregate undiscounted future cash flows, the Company recognizes an impairment loss to the extent the carrying amount exceeds the estimated fair value of the property or long-lived asset. Based on periodic tests of recoverability of long-lived assets, the Company did not recognize any impairment losses for the three and nine months ended September 30, 2020 and 2019.

The Company evaluates its for-sale condominium inventory for potential indicators of impairment, considering whether the fair value of the for-sale condominium units exceeds the carrying value. For-sale condominium inventory is stated at cost, unless the carrying amount of the inventory is not recoverable when compared to the fair value. The Company determines the fair value of its for-sale condominium inventory as the estimated sales price less direct costs to sell. In addition, the Company incurs marketing and administrative costs related to the for-sale condominiums. For the three and nine months ended September 30, 2020 and 2019, the Company did not identify any indicators of impairment for its for-sale condominium inventory.

The Company assesses its portfolio of land held for both development and investment for impairment if the intent of the Company changes with respect to either the development of, or the expected holding period for, the land. During the three and nine months ended September 30, 2020 and 2019, the Company did not recognize any impairment charges on its investment in land.

The Company evaluates its unconsolidated investments for other than temporary impairment, considering both the extent and amount by which the carrying value of the investment exceeds the fair value, and the Company's intent and ability to hold the investment to recover its carrying value. The Company also evaluates its proportionate share of any impairment of assets held by unconsolidated investments. There were no other than temporary impairment losses recognized for any of the Company's investments in unconsolidated real estate entities, or impairments recognized by those entities, during the three and nine months ended September 30, 2020 and 2019.

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Real Estate Disposition Activities

9 Months Ended

Sep. 30, 2020

Discontinued Operations and Disposal Groups [Abstract]

Real Estate Disposition Activities

Real Estate Disposition Activities

The following real estate sales occurred during the nine months ended September 30, 2020:

Community Name	Location	Period of sale	Apartment homes	Gross sales price		Gain on Disposition (1)
Avalon Shelton	Shelton, CT	Q120	250	$	64,750	$	24,413
Avalon Tinton Falls	Tinton Falls, NJ	Q220	216	$	64,900	$	35,297
Avalon Towers	Long Beach, NY	Q320	109	$	54,000	$	31,603

_________________________________

(1)    Gain on disposition was reported in gain on sale of communities on the accompanying Condensed Consolidated Statements of Comprehensive Income.

At September 30, 2020, the Company had no real estate assets that qualified as held for sale.

The Park Loggia

The Park Loggia, located in New York, NY, contains 172 for-sale residential condominiums and 67,000 square feet of commercial space. During the three and nine months ended September 30, 2020, the Company sold seven and 59 residential condominiums at The Park Loggia, for gross proceeds of $15,699,000 and $182,512,000, respectively, resulting in a gain in accordance with GAAP of $727,000 and $8,174,000, respectively. The Company incurred $1,373,000 and $1,108,000 during the three months ended September 30, 2020 and 2019, respectively, and $4,012,000 and $2,526,000 during the nine months ended September 30, 2020 and 2019, respectively, in marketing and administrative costs associated with The Park Loggia. All amounts are included in gain (loss) on for-sale condominiums, net of marketing and administrative costs, on the accompanying Condensed Consolidated Statements of Comprehensive Income. As of September 30, 2020, the unsold for-sale residential condominiums at The Park Loggia have an aggregate carrying value of $298,429,000, presented as for-sale condominium inventory on the accompanying Condensed Consolidated Balance Sheets.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Lease Obligations

The Company owns 11 apartment communities, one community under development and two commercial properties, located on land subject to ground leases expiring between October 2026 and March 2142. The Company has purchase options for all ground leases expiring prior to 2030, which allow the Company to buyout the respective leases for nominal consideration as such leases were structured public finance vehicles. The ground leases for 10 of 11 of the apartment communities and the rest of the ground leases are accounted for as operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 15 leases for its corporate and regional offices with varying terms through 2031, all of which are accounted for or will be accounted for as operating leases.

As of September 30, 2020 and December 31, 2019, the Company has total operating lease assets of $135,885,000 and $103,063,000, respectively, and total operating lease obligations of $162,683,000 and $120,261,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $3,958,000 and $3,618,000 for the three months ended September 30, 2020 and 2019, respectively, and $12,115,000 and $10,723,000 for the nine months ended September 30, 2020 and 2019, respectively, related to operating leases.

The Company has one apartment community located on land subject to a ground lease and two leases for portions of parking garages, adjacent to apartment communities, that are accounted for as finance leases. As of September 30, 2020 and December 31, 2019, the Company has total finance lease assets of $21,738,000 and $21,898,000, respectively, and total finance lease obligations of $20,176,000 and $20,207,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets.

Commitments and Contingencies

Commitments and Contingencies

Lease Obligations

The Company owns 11 apartment communities, one community under development and two commercial properties, located on land subject to ground leases expiring between October 2026 and March 2142. The Company has purchase options for all ground leases expiring prior to 2030, which allow the Company to buyout the respective leases for nominal consideration as such leases were structured public finance vehicles. The ground leases for 10 of 11 of the apartment communities and the rest of the ground leases are accounted for as operating leases, with rental expense recognized on a straight-line basis over the lease term. In addition, the Company is party to 15 leases for its corporate and regional offices with varying terms through 2031, all of which are accounted for or will be accounted for as operating leases.

As of September 30, 2020 and December 31, 2019, the Company has total operating lease assets of $135,885,000 and $103,063,000, respectively, and total operating lease obligations of $162,683,000 and $120,261,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets. The Company incurred costs of $3,958,000 and $3,618,000 for the three months ended September 30, 2020 and 2019, respectively, and $12,115,000 and $10,723,000 for the nine months ended September 30, 2020 and 2019, respectively, related to operating leases.

The Company has one apartment community located on land subject to a ground lease and two leases for portions of parking garages, adjacent to apartment communities, that are accounted for as finance leases. As of September 30, 2020 and December 31, 2019, the Company has total finance lease assets of $21,738,000 and $21,898,000, respectively, and total finance lease obligations of $20,176,000 and $20,207,000, respectively, reported as components of right of use lease assets and lease liabilities, respectively, on the accompanying Condensed Consolidated Balance Sheets.

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Segment Reporting

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

The Company's reportable operating segments include Established Communities, Other Stabilized Communities, and Development/Redevelopment Communities. Annually as of January 1, the Company determines which of its communities fall into each of these categories and generally maintains that classification throughout the year for the purpose of reporting segment operations, unless disposition or redevelopment plans regarding a community change. In addition, the Company owns land for future development and has other corporate assets that are not allocated to an operating segment.

The Company's segment disclosures present the measure(s) used by the chief operating decision maker for purposes of assessing each segment's performance. The Company's chief operating decision maker ("CODM") is comprised of several members of its executive management team who use net operating income ("NOI") as the primary financial measure for Established Communities and Other Stabilized Communities. NOI is defined by the Company as total property revenue less direct property operating expenses (including property taxes), and excluding corporate-level income (including management, development and other fees), corporate-level property management and other indirect operating expenses, expensed transaction, development and other pursuit costs, net of recoveries, interest expense, net, (gain) loss on extinguishment of debt, net, general and administrative expense, equity in income of unconsolidated real estate entities, depreciation expense, corporate income tax expense, casualty and impairment (gain) loss, net, gain on sale of communities, (gain) loss on other real estate transactions, net, gain on for-sale condominiums, net of marketing and administrative costs and net operating income from real estate assets sold or held for sale. Although the Company considers NOI a useful measure of a community's or communities' operating performance, NOI should not be considered an alternative to net income or net cash flow from operating activities, as determined in accordance with GAAP. NOI excludes a number of income and expense categories as detailed in the reconciliation of NOI to net income.

A reconciliation of NOI to net income for the three and nine months ended September 30, 2020 and 2019 is as follows (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net income	$	147,717	$	279,709	$	486,592	$	618,432
Indirect operating expenses, net of corporate income	23,837		20,195		70,043		62,935
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		4,289		2,562
Interest expense, net	53,249		51,493		162,562		149,395
(Gain) loss on extinguishment of debt, net	(105)		93		9,333		602
General and administrative expense	13,985		12,769		46,878		45,440
Equity in income of unconsolidated real estate entities	(5,083)		(1,643)		(6,770)		(780)
Depreciation expense	175,348		165,463		529,508		490,213
Income tax (benefit) expense	(27)		11,184		(1,069)		11,178
Gain on sale of communities	(31,607)		(130,484)		(91,338)		(165,849)
Gain on other real estate transactions, net	(129)		(73)		(328)		(374)
Gain on for-sale condominiums, net of marketing and administrative costs	646		1,108		(4,162)		2,526
Net operating income from real estate assets sold or held for sale	(720)		(3,404)		(3,572)		(16,161)
Net operating income	$	377,678	$	406,585	$	1,201,966	$	1,200,119

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Rental income from real estate assets sold or held for sale	$	1,449	$	6,094	$	6,159	$	28,116
Operating expenses from real estate assets sold or held for sale	(729)		(2,690)		(2,587)		(11,955)
Net operating income from real estate assets sold or held for sale	$	720	$	3,404	$	3,572	$	16,161

The primary performance measure for communities under development or redevelopment depends on the stage of completion.  While under development, management monitors actual construction costs against budgeted costs as well as lease-up pace and rent levels compared to budget.

The following table provides details of the Company's segment information as of the dates specified (dollars in thousands). The segments are classified based on the individual community's status at January 1, 2020. Segment information for the three and nine months ended September 30, 2020 and 2019 has been adjusted to exclude the real estate assets that were sold from January 1, 2019 through September 30, 2020, or otherwise qualify as held for sale as of September 30, 2020, as described in Note 6, "Real Estate Disposition Activities."

	For the three months ended				For the nine months ended
	Total revenue		NOI		Total revenue		NOI		Gross real estate (1)
For the period ended September 30, 2020
Established
New England	$	78,057	$	49,089	$	239,456	$	155,604	$	2,774,519
Metro NY/NJ	112,507		75,193		344,475		236,138		4,303,971
Mid-Atlantic	84,038		56,190		259,086		180,886		3,505,272
Pacific Northwest	27,125		18,578		83,539		59,042		994,486
Northern California	95,234		69,752		300,856		228,047		3,274,052
Southern California	105,964		71,125		327,865		228,181		4,152,209
Expansion Markets	5,633		3,015		17,424		10,004		320,944
Total Established	508,558		342,942		1,572,701		1,097,902		19,325,453
Other Stabilized	35,080		22,834		105,246		69,438		1,595,739
Development / Redevelopment	21,300		11,902		58,403		34,626		2,569,413
Land Held for Development	N/A		N/A		N/A		N/A		43,494
Non-allocated (2)	1,017		N/A		2,950		N/A		407,821
Total	$	565,955	$	377,678	$	1,739,300	$	1,201,966	$	23,941,920
For the period ended September 30, 2019
Established
New England	$	81,924	$	54,244	$	240,178	$	158,801	$	2,742,940
Metro NY/NJ	119,857		82,602		355,990		248,530		4,284,077
Mid-Atlantic	88,829		62,430		262,806		185,431		3,475,939
Pacific Northwest	28,589		20,684		84,615		61,498		988,952
Northern California	103,511		79,076		307,207		235,884		3,258,942
Southern California	113,202		79,357		337,488		239,452		4,119,312
Expansion Markets	5,825		3,261		17,607		10,177		320,114
Total Established	541,737		381,654		1,605,891		1,139,773		19,190,276
Other Stabilized	30,199		20,125		77,749		52,091		1,404,506
Development / Redevelopment	8,352		4,806		15,820		8,255		1,824,012
Land Held for Development	N/A		N/A		N/A		N/A		20,095
Non-allocated (2)	1,231		N/A		3,484		N/A		552,179
Total	$	581,519	$	406,585	$	1,702,944	$	1,200,119	$	22,991,068

__________________________________

(1)Does not include gross real estate either sold or classified as held for sale subsequent to September 30, 2019 of $131,790.

(2)Revenue represents third-party management, accounting, and developer fees and miscellaneous income which are not allocated to a reportable segment. Gross real estate includes the for-sale residential condominiums at The Park Loggia, as discussed in Note 6, "Real Estate Disposition Activities."

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Stock-Based Compensation Plans

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

As part of its long-term compensation plans, the Company has granted stock options, performance awards and restricted stock.

Information with respect to performance awards granted is as follows:

	Performance awards	Weighted average grant date fair value per award
Outstanding at December 31, 2019	253,432	$	176.27
Granted (1)	76,458	238.72
Change in awards based on performance (2)	18,112	177.26
Converted to restricted stock	(96,317)	177.26
Forfeited	(10,488)	188.52
Outstanding at September 30, 2020	241,197	$	195.22

__________________________________

(1)The amount of restricted stock that ultimately may be earned is based on the total shareholder return metrics related to the Company's common stock for 38,461 performance awards and financial metrics related to operating performance, net asset value and leverage metrics of the Company for 37,997 performance awards.

(2)Represents the change in the number of performance awards earned based on performance achievement for the performance period.

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted in 2020 for which achievement will be determined by using total shareholder return measures. The assumptions used are as follows:

	2020
Dividend yield	2.8%
Estimated volatility over the life of the plan (1)	11.1% - 15.5%
Risk free rate	1.45% - 1.62%
Estimated performance award value based on total shareholder return measure	$254.72

__________________________________

(1)Estimated volatility of the life of the plan is using 50% historical volatility and 50% implied volatility.

For the portion of the performance awards granted in 2020 for which achievement will be determined by using financial metrics, the compensation cost was based on a weighted average grant date value of $225.30, and the Company's estimate of corporate achievement for the financial metrics.

Information with respect to restricted stock granted is as follows:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2019	148,326	$	181.29	163,111
Granted - restricted stock shares	69,109	221.18		96,317
Vested - restricted stock shares	(77,761)	178.32		(109,758)
Forfeited	(5,637)	195.89		(1,784)
Outstanding at September 30, 2020	134,037	$	202.96	147,886

Total employee stock-based compensation cost recognized in income was $17,385,000 and $20,291,000 for the nine months ended September 30, 2020 and 2019, respectively, and total capitalized stock-based compensation cost was $8,291,000 and $7,622,000 for the nine months ended September 30, 2020 and 2019, respectively. At September 30, 2020, there was a total unrecognized compensation cost of $30,677,000 for unvested restricted stock and performance awards, which does not include forfeitures, and is expected to be recognized over a weighted average period of 1.9 years.

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Related Party Arrangements

9 Months Ended

Sep. 30, 2020

Related Party Transactions [Abstract]

Related Party Arrangements

Related Party Arrangements

Unconsolidated Entities

The Company manages unconsolidated real estate entities for which it receives asset management, property management, development and redevelopment fee revenue. From these entities, the Company earned fees of $1,017,000 and $1,231,000 for the three months ended September 30, 2020 and 2019, respectively and $2,950,000 and $3,484,000 for the nine months ended September 30, 2020 and 2019, respectively. In addition, the Company had outstanding receivables associated with its property and construction management role of $5,241,000 and $3,924,000 as of September 30, 2020 and December 31, 2019, respectively.

Director Compensation

The Company recorded non-employee director compensation expense relating to restricted stock grants and deferred stock units in the amount of $459,000 and $458,000 in the three months ended September 30, 2020 and 2019, respectively, and $1,360,000 and $1,288,000 in the nine months ended September 30, 2020 and 2019, respectively, as a component of general and administrative expense. Deferred compensation relating to these restricted stock grants and deferred stock units to non-employee directors was $996,000 and $594,000 on September 30, 2020 and December 31, 2019, respectively, reported as a component of prepaid expenses and other assets on the accompanying Condensed Consolidated Balance Sheets.

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Fair Value

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value

Fair Value

Financial Instruments Carried at Fair Value

Derivative Financial Instruments

The Company uses interest rate swap and interest rate cap agreements to manage its interest rate risk. These instruments are carried at fair value in the Company's financial statements. In adjusting the fair value of its derivative contracts for the effect of counterparty nonperformance risk, the Company has considered the impact of its net position with a given counterparty, as well as any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. The Company minimizes its credit risk on these transactions by dealing with major, creditworthy financial institutions which have an A or better credit rating by the Standard & Poor's Ratings Group. As part of its on-going control procedures, the Company monitors the credit ratings of counterparties and the exposure of the Company to any single entity, thus reducing credit risk concentration. The Company believes the likelihood of realizing losses from counterparty nonperformance is remote. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, such as interest rate, term to maturity and volatility, the credit valuation adjustments associated with its derivatives use Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by itself and its counterparties. As of September 30, 2020, the Company assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined it is not significant. As a result, the Company has determined that its derivative valuations are classified in Level 2 of the fair value hierarchy.

The following table summarizes the consolidated derivative positions at September 30, 2020 (dollars in thousands):

	Non-designated Hedges Interest Rate Caps			Cash Flow Hedges Interest Rate Swaps
Notional balance	$	440,097		$	150,000
Weighted average interest rate (1)	1.7		%	N/A
Weighted average swapped/capped interest rate	6.5		%	0.7		%
Earliest maturity date	January 2021			May 2021
Latest maturity date	November 2021			May 2021

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate cap.

The following activity occurred during the nine months ended September 30, 2020:

•The Company settled an aggregate of $600,000,000 of forward interest rate swap agreements, making aggregate payments of $25,135,000. Of the positions settled by the Company, $250,000,000 were forward interest swaps that the Company had entered into during 2020.

◦In conjunction with the issuance of the Company's $700,000,000 unsecured notes due 2030 in February 2020, the Company settled $350,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $20,314,000.

◦In conjunction with the issuance of the Company's $600,000,000 unsecured notes due 2031 in May 2020, the Company settled $250,000,000 of forward interest rate swap agreements designated as cash flow hedges of the interest rate variability on the issuance of the unsecured notes, making a payment of $4,821,000.

The Company has deferred these amounts in accumulated other comprehensive loss on the accompanying Condensed Consolidated Balance Sheets, and is recognizing the impact as a component of interest expense, net, over the term of the respective hedged debt.

•The Company entered into an additional $150,000,000 of new forward interest rate swap agreements executed to reduce the impact of variability of interest rates on a portion of the Company's expected debt issuance activity in 2021.

At the maturity of the remaining outstanding swap agreements, the Company expects to cash settle the contracts and either pay or receive cash for the then current fair value. Assuming that the Company issues the debt as expected, the hedging impact from these positions will then be recognized over the life of the issued debt as a yield adjustment.

The Company had three derivatives designated as cash flow hedges and five derivatives not designated as hedges at September 30, 2020. Fair value changes for derivatives not in qualifying hedge relationships for the three and nine months ended September 30, 2020 and 2019 were not material. During the nine months ended September 30, 2020, the Company deferred $17,731,000 of losses for cash flow hedges reported as a component of accumulated other comprehensive loss.

The following table summarizes the deferred losses reclassified from accumulated other comprehensive loss as a component of interest expense, net (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Cash flow hedge losses reclassified to earnings	$	2,367	$	1,746	$	6,617	$	4,825

The Company anticipates reclassifying approximately $9,467,000 of net hedging losses from accumulated other comprehensive loss into earnings within the next 12 months as an offset to the hedged item during this period. The Company did not have any derivatives designated as fair value hedges as of September 30, 2020 and 2019.

Redeemable Noncontrolling Interests

The Company is party to investments in two consolidated ventures, which contain redemption options (the "Puts") that allow joint venture partners of the Company to require the Company to purchase their interests in the investment at a guaranteed minimum amount. The Puts are payable in cash. The Company determines the fair value of the Puts based on unobservable inputs considering the assumptions that market participants would make in pricing the obligations, applying a guaranteed rate of return to the joint venture partners' net capital contribution balances as of period end. Given the significance of the unobservable inputs, the valuations are classified in Level 3 of the fair value hierarchy.

The Company issued units of limited partnership interest in a DownREIT which provides the DownREIT limited partners the ability to present all or some of their units for redemption for cash as determined by the partnership agreement. Under the DownREIT agreement, for each limited partnership unit, the limited partner is entitled to receive cash in the amount equal to the fair value of the Company's common stock on or about the date of redemption. In lieu of cash redemption, the Company may elect to exchange such units for an equal number of shares of the Company's common stock. The limited partnership units in the DownREIT are valued using the market price of the Company's common stock, a Level 1 price under the fair value hierarchy.

Financial Instruments Not Carried at Fair Value

Cash and Cash Equivalents

Cash and cash equivalent balances are held with various financial institutions within accounts designed to preserve principal. The Company monitors credit ratings of these financial institutions and the concentration of cash and cash equivalent balances with any one financial institution and believes the likelihood of realizing material losses related to cash and cash equivalent balances is remote. Cash and cash equivalents are carried at their face amounts, which reasonably approximate their fair values and are Level 1 within the fair value hierarchy.

Other Financial Instruments

Rents and other receivables and prepaid expenses, accounts and construction payable and accrued expenses and other liabilities are carried at their face amounts, which reasonably approximate their fair values.

The Company values its unsecured notes using quoted market prices, a Level 1 price within the fair value hierarchy. The Company values its notes payable and outstanding amounts under the Credit Facility and Term Loans using a discounted cash flow analysis on the expected cash flows of each instrument. This analysis reflects the contractual terms of the instrument, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The process also considers credit valuation adjustments to appropriately reflect the Company's nonperformance risk. The Company has concluded that the value of its notes payable and amounts outstanding under its Credit Facility and Term Loans are Level 2 prices as the majority of the inputs used to value its positions fall within Level 2 of the fair value hierarchy.

Financial Instruments Measured/Disclosed at Fair Value on a Recurring Basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	9/30/2020
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	1,413	$	—	$	1,413	$	—
DownREIT units	(1,120)		(1,120)		—		—
Indebtedness
Fixed rate unsecured notes	(7,269,443)		(7,269,443)		—		—
Secured notes and variable rate unsecured indebtedness	(1,073,689)		—		(1,073,689)		—
Total	$	(8,342,839)	$	(7,270,563)	$	(1,072,276)	$	—

	12/31/2019
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	388	$	—	$	388	$	—
Interest Rate Swaps - Liabilities	(6,379)		—		(6,379)		—
Puts	(206)		—		—		(206)
DownREIT units	(1,573)		(1,573)		—		—
Indebtedness
Fixed rate unsecured notes	(6,197,771)		(6,197,771)		—		—
Secured notes and variable rate unsecured indebtedness	(1,398,147)		—		(1,398,147)		—
Total	$	(7,603,688)	$	(6,199,344)	$	(1,404,138)	$	(206)

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Subsequent Events

9 Months Ended

Sep. 30, 2020

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company has evaluated subsequent events through the date on which this Form 10-Q was filed, the date on which these financial statements were issued, and identified the items below for discussion.

In October 2020, the Company repurchased 219,186 shares of common stock at an average price of $148.17 per share.

In October 2020, the Company entered into agreements to sell three wholly-owned operating communities containing an aggregate of 858 apartment homes and net real estate of $126,397,000 as of September 30, 2020, resulting in the communities qualifying as held for sale subsequent to September 30, 2020. The Company expects to complete the sales of these communities in the fourth quarter of 2020.

In October 2020, the Company acquired three parcels of land for development for an aggregate investment of $59,145,000.

As of November 4, 2020, the Company has $183,000,000 outstanding under its Credit Facility.

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Organization, Basis of Presentation and Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

AvalonBay Communities, Inc. (the "Company," which term, unless the context otherwise requires, refers to AvalonBay Communities, Inc. together with its subsidiaries), is a Maryland corporation that has elected to be treated as a real estate investment trust ("REIT") for federal income tax purposes under the Internal Revenue Code of 1986 (the "Code"). The Company focuses on the development, redevelopment, acquisition, ownership and operation of multifamily communities in New England, the New York/New Jersey metro area, the Mid-Atlantic, the Pacific Northwest, and Northern and Southern California, as well as in the Company's expansion markets in Southeast Florida and Denver, Colorado (the "Expansion Markets").

At September 30, 2020, the Company owned or held a direct or indirect ownership interest in 275 operating apartment communities containing 80,292 apartment homes in 11 states and the District of Columbia, of which one community containing 344 apartment homes was under redevelopment. In addition, the Company owned or held a direct or indirect ownership interest in 19 communities under development that are expected to contain an aggregate of 6,384 apartment homes when completed, as well as The Park Loggia, which contains 172 for-sale residential condominiums, of which 59 have been sold as of September 30, 2020, and 67,000 square feet of commercial space, of which 64% has been leased as of September 30, 2020. The Company also owned or held a direct or indirect ownership interest in land or rights to land on which the Company expects to develop an additional 27 communities that, if developed as expected, will contain an estimated 9,320 apartment homes.

The interim unaudited financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and in conjunction with the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and footnote disclosures normally included in financial statements required by GAAP have been condensed or omitted pursuant to such rules and regulations. These unaudited financial statements should be read in conjunction with the financial statements and notes included in the Company's 2019 Annual Report on Form 10-K. The results of operations for the three and nine months ended September 30, 2020 are not necessarily indicative of the operating results for the full year. Management believes the disclosures are adequate to ensure the information presented is not misleading. In the opinion of management, all adjustments and eliminations, consisting only of normal, recurring adjustments necessary for a fair presentation of the financial statements for the interim periods, have been included.

Capitalized terms used without definition have meanings provided elsewhere in this Form 10-Q.

Earnings per Common Share

Earnings per Common Share

Basic earnings per share is computed by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the period. All outstanding unvested restricted share awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common shareholders and, accordingly, are considered participating securities that are included in the two-class method of computing basic earnings per share ("EPS"). Both the unvested restricted shares and other potentially dilutive common shares, and the related impact to earnings, are considered when calculating earnings per share on a diluted basis. The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Basic and diluted shares outstanding
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Weighted average DownREIT units outstanding	7,500		7,500		7,500		7,500
Effect of dilutive securities	324,648		505,032		328,865		498,609
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Net income allocated to unvested restricted shares	(342)		(704)		(1,158)		(1,655)
Net income attributable to common stockholders, adjusted	$	147,361	$	278,973	$	485,344	$	616,669
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Earnings per common share - basic	$	1.05	$	2.00	$	3.46	$	4.44
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships	12		11		36		34
Adjusted net income attributable to common stockholders	$	147,715	$	279,688	$	486,538	$	618,358
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Earnings per common share - diluted	$	1.05	$	2.00	$	3.46	$	4.43

All options to purchase shares of common stock outstanding as of September 30, 2020 and 2019 are included in the computation of diluted earnings per share.

Derivative Instruments and Hedging Activities

Derivative Instruments and Hedging ActivitiesThe Company enters into interest rate swap and interest rate cap agreements (collectively, "Hedging Derivatives") for interest rate risk management purposes and in conjunction with certain variable rate secured debt to satisfy lender requirements. The Company does not enter into Hedging Derivative transactions for trading or other speculative purposes. The Company assesses the effectiveness of qualifying cash flow and fair value hedges, both at inception and on an on-going basis. Hedge ineffectiveness is reported as a component of interest expense, net. The fair values of Hedging Derivatives that are in an asset position are recorded in prepaid expenses and other assets. The fair value of Hedging Derivatives that are in a liability position are included in accrued expenses and other liabilities. The Company does not present or disclose the fair value of Hedging Derivatives on a net basis. Fair value changes for derivatives that are not in qualifying hedge relationships are reported as a component of interest expense, net. For the Hedging Derivative positions that the Company has determined qualify as effective cash flow hedges, the Company has recorded the cumulative changes in the fair value of Hedging Derivatives in other comprehensive loss. Amounts recorded in accumulated other comprehensive loss will be reclassified into earnings in the periods in which earnings are affected by the hedged cash flow. The effective portion of the change in fair value of the Hedging Derivatives that the Company has determined qualified as effective fair value hedges is reported as an adjustment to the carrying amount of the corresponding debt being hedged.

Legal and Other Contingencies

Legal and Other Contingencies

The Company is involved in various claims and/or administrative proceedings that arise in the ordinary course of its business. While no assurances can be given, the Company does not currently believe that any of these outstanding litigation matters, individually or in the aggregate, will have a material adverse effect on its financial condition or results of operations.

Real Estate, Policy

Acquisitions of Investments in Real Estate

The Company accounts for acquisitions of investments in real estate in accordance with the authoritative guidance for the initial measurement, which first requires that the Company determine if the real estate investment is the acquisition of an asset or a business combination. Under either model, the Company must identify and determine the fair value of any assets acquired, liabilities assumed and any noncontrolling interest in the acquiree. Typical assets acquired and liabilities assumed include land, building, furniture, fixtures and equipment, debt and identified intangible assets and liabilities, consisting of the value of above or below market leases and in-place leases. In making estimates of fair values for purposes of allocating purchase price, the Company utilizes various sources, including its own analysis of recently acquired and existing comparable properties in its portfolio and other market data. Consideration for acquisitions is typically in the form of cash unless otherwise disclosed. For a business combination, the Company records the assets acquired and liabilities assumed based on the fair value of each respective item. For an asset acquisition, the allocation of the purchase price is based on the relative fair value of the net assets. The Company expenses all applicable acquisition costs for a business combination and capitalizes all applicable acquisition costs for an asset acquisition. The Company expects that acquisitions of individual operating communities will generally be viewed as asset acquisitions.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.

Reclassifications

ReclassificationsCertain reclassifications have been made to amounts in prior years' notes to financial statements to conform to current year presentations as a result of changes in held for sale classification, disposition activity and segment classification.

For-Sale Condominium Inventory

For-Sale Condominium Inventory The Company presents for-sale condominium inventory at historical cost and evaluates the condominium inventory for impairment when potential indicators exist, as further discussed in Note 6, "Real Estate Disposition Activities."

Lessee Considerations

Lessee Considerations

The Company assesses whether a contract is or contains a lease based on whether the contract conveys the right to control the use of an identified asset, including specified portions of larger assets, for a period of time in exchange for consideration. The Company’s leases include both fixed and variable lease payments, which are based on an index or rate such as the consumer price index (CPI) or percentage rents based on total sales. Lease payments included in the lease liability include only payments that depend on an index or rate. For leases that have options to extend the term or terminate the lease early, the Company only factored the impact of such options into the lease term if the option was considered reasonably certain to be exercised. The Company determined the discount rate associated with its ground and office leases on a lease by lease basis using the Company’s actual borrowing rates as well as indicative market pricing for longer term rates and taking into consideration the remaining term of each of the lease agreements.

Lessor Considerations

Lessor Considerations

The Company evaluates leases in which it is the lessor, which are composed of residential and commercial leases at its apartment communities, and determined these leases to be operating leases. For lease agreements that provide for rent concessions and/or scheduled fixed and determinable rent increases, rental income is recognized on a straight-line basis over the noncancellable term of the lease, which, for residential leases, is generally one year. Some of the Company’s commercial leases have fixed-price renewal options, and the lessee may be able to exercise its renewal option at an amount less than the fair value of the rent at such time. The Company only includes renewal options in the lease term if, at the commencement of the lease, it is reasonably certain that the lessee will exercise this option.

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Issued and Adopted Accounting Standards

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This ASU requires entities to estimate a lifetime expected credit loss for most financial assets, including (i) trade and other receivables, (ii) other long term financings including available for sale and held-to-maturity debt securities and (iii) loans. Subsequently, the FASB issued ASU 2018-19, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, which amends the scope of ASU 2016-13 and clarified that receivables arising from operating leases are not within the scope of the standard and should continue to be accounted for in accordance with the leases standard (Topic 842). The new standard was adopted on January 1, 2020 and does not have a material effect on the Company’s financial position or results of operations.

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Organization, Basis of Presentation and Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Schedule of earnings per common share

The Company's earnings per common share are determined as follows (dollars in thousands, except per share data):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Basic and diluted shares outstanding
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Weighted average DownREIT units outstanding	7,500		7,500		7,500		7,500
Effect of dilutive securities	324,648		505,032		328,865		498,609
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Net income allocated to unvested restricted shares	(342)		(704)		(1,158)		(1,655)
Net income attributable to common stockholders, adjusted	$	147,361	$	278,973	$	485,344	$	616,669
Weighted average common shares - basic	140,271,574		139,340,142		140,366,438		138,931,955
Earnings per common share - basic	$	1.05	$	2.00	$	3.46	$	4.44
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$	147,703	$	279,677	$	486,502	$	618,324
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships	12		11		36		34
Adjusted net income attributable to common stockholders	$	147,715	$	279,688	$	486,538	$	618,358
Weighted average common shares - diluted	140,603,722		139,852,674		140,702,803		139,438,064
Earnings per common share - diluted	$	1.05	$	2.00	$	3.46	$	4.43

Disaggregation of revenue

The following table provides details of the Company’s revenue streams disaggregated by the Company’s reportable operating segments, further discussed in Note 8, “Segment Reporting,” for the three and nine months ended September 30, 2020 and 2019. Segment information for total revenue has been adjusted to exclude the real estate assets that were sold from January 1, 2019 through September 30, 2020, or otherwise qualify as held for sale as of September 30, 2020, as described in Note 6, "Real Estate Disposition Activities" (dollars in thousands):

	For the three months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	1,017	$	1,017
Rental and non-rental related income (2)	1,959		477		337		—		2,773
Total non-lease revenue (3)	1,959		477		337		1,017		3,790
Lease income (4)	506,587		34,333		20,963		—		561,883
Business interruption insurance proceeds	12		270		—		—		282
Total revenue	$	508,558	$	35,080	$	21,300	$	1,017	$	565,955
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	1,231	$	1,231
Rental and non-rental related income (2)	1,796		445		133		—		2,374
Total non-lease revenue (3)	1,796		445		133		1,231		3,605
Lease income (4)	539,634		29,754		8,219		—		577,607
Business interruption insurance proceeds	307		—		—		—		307
Total revenue	$	541,737	$	30,199	$	8,352	$	1,231	$	581,519

	For the nine months ended
	Established Communities		Other Stabilized Communities		Development/ Redevelopment Communities		Non- allocated (1)		Total
For the period ended September 30, 2020
Management, development and other fees	$	—	$	—	$	—	$	2,950	$	2,950
Rental and non-rental related income (2)	5,416		1,271		884		—		7,571
Total non-lease revenue (3)	5,416		1,271		884		2,950		10,521
Lease income (4)	1,567,170		103,705		57,519		—		1,728,394
Business interruption insurance proceeds	115		270		—		—		385
Total revenue	$	1,572,701	$	105,246	$	58,403	$	2,950	$	1,739,300
For the period ended September 30, 2019
Management, development and other fees	$	—	$	—	$	—	$	3,484	$	3,484
Rental and non-rental related income (2)	5,753		1,078		224		—		7,055
Total non-lease revenue (3)	5,753		1,078		224		3,484		10,539
Lease income (4)	1,599,224		76,671		15,596		—		1,691,491
Business interruption insurance proceeds	914		—		—		—		914
Total revenue	$	1,605,891	$	77,749	$	15,820	$	3,484	$	1,702,944

__________________________________

(1)Revenue represents third-party management, asset management and developer fees and miscellaneous income which are not allocated to a reportable segment.

(2)Amounts include revenue streams related to leasing activities that are not considered components of a lease, including but not limited to, apartment hold fees and application fees, as well as revenue streams not related to leasing activities, including but not limited to, vendor revenue sharing, building advertising, vending and dry cleaning revenue.

(3)Represents all revenue accounted for under ASU 2014-09.

(4)Amounts include all revenue streams derived from residential and commercial rental income and other lease income, which are accounted for under ASC 842.

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Mortgage Notes Payable, Unsecured Notes and Credit Facility (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Summary of company's mortgage notes payable, unsecured notes and Credit Facility excluding mortgage notes secured by communities classified as held for sale

The following amounts and discussion do not include the mortgage notes related to the communities classified as held for sale, if any, as of September 30, 2020 and December 31, 2019, as shown in the accompanying Condensed Consolidated Balance Sheets (dollars in thousands) (see Note 6, "Real Estate Disposition Activities").

	9/30/2020		12/31/2019
Fixed rate unsecured notes (1)	$	6,500,000	$	5,850,000
Variable rate unsecured notes (1)	—		300,000
Term Loans (1)	250,000		250,000
Fixed rate mortgage notes payable - conventional and tax-exempt (2)	409,649		479,221
Variable rate mortgage notes payable - conventional and tax-exempt (2)	471,450		476,150
Total mortgage notes payable and unsecured notes and Term Loans	7,631,099		7,355,371
Credit Facility	—		—
Total mortgage notes payable, unsecured notes, Term Loans and Credit Facility	$	7,631,099	$	7,355,371

_____________________________________

(1)Balances at September 30, 2020 and December 31, 2019 exclude $10,782 and $8,610, respectively, of debt discount, and $38,968 and $32,742, respectively, of deferred financing costs, as reflected in unsecured notes, net on the accompanying Condensed Consolidated Balance Sheets.

(2)Balances at September 30, 2020 and December 31, 2019 exclude $14,636 and $14,464, respectively, of debt discount, and $3,067 and $3,265, respectively, of deferred financing costs, as reflected in mortgage notes payable, net on the accompanying Condensed Consolidated Balance Sheets.

Scheduled payments and maturities of mortgage notes payable and unsecured notes outstanding

Scheduled payments and maturities of secured notes payable and unsecured notes outstanding at September 30, 2020 are as follows (dollars in thousands):

Year	Secured notes principal payments		Secured notes maturities		Unsecured notes and Term Loans maturities		Stated interest rate of unsecured notes and Term Loans
2020	$	1,285	$	—	$	—	N/A
2021	9,304		27,844		—		N/A
2022	9,918		—		450,000		2.950	%
					100,000		LIBOR + 0.90%
2023	10,739		—		350,000		4.200	%
					250,000		2.850	%
2024	11,677		—		300,000		3.500	%
					150,000		LIBOR + 0.85%
2025	12,408		—		525,000		3.450	%
					300,000		3.500	%
2026	13,445		—		475,000		2.950	%
					300,000		2.900	%
2027	15,080		236,100		400,000		3.350	%
2028	20,607		—		450,000		3.200	%
2029	11,742		66,250		450,000		3.300	%
Thereafter	189,362		245,338		700,000		2.300	%
					600,000		2.450	%
					350,000		3.900	%
					300,000		4.150	%
					300,000		4.350	%
	$	305,567	$	575,532	$	6,750,000

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Equity (Tables)

9 Months Ended

Sep. 30, 2020

Stockholders' Equity Note [Abstract]

Summary of changes in equity

The following summarizes the changes in equity for the nine months ended September 30, 2020 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2019	$	1,406	$	10,736,733	$	282,913	$	(31,503)	$	10,989,549	$	649	$	10,990,198
Net income attributable to common stockholders	—		—		167,971		—		167,971		—		167,971
Loss on cash flow hedges, net	—		—		—		(17,603)		(17,603)		—		(17,603)
Cash flow hedge losses reclassified to earnings	—		—		—		1,949		1,949		—		1,949
Change in redemption value of redeemable noncontrolling interest	—		—		471		—		471		—		471
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(35)		(35)
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,083)		—		(224,083)		—		(224,083)
Issuance of common stock, net of withholdings	1		(12,492)		(1,616)		—		(14,107)		—		(14,107)
Amortization of deferred compensation	—		7,781		—		—		7,781		—		7,781
Balance at March 31, 2020	$	1,407	$	10,732,022	$	225,656	$	(47,157)	$	10,911,928	$	614	$	10,912,542
Net income attributable to common stockholders	—		—		170,828		—		170,828		—		170,828
Loss on cash flow hedges, net	—		—		—		(1,461)		(1,461)		—		(1,461)
Cash flow hedge losses reclassified to earnings	—		—		—		2,301		2,301		—		2,301
Change in redemption value of redeemable noncontrolling interest	—		—		(146)		—		(146)		—		(146)
Noncontrolling interest distribution and income allocation	—		—		—		—		—		1		1
Dividends declared to common stockholders ($1.59 per share)	—		—		(224,172)		—		(224,172)		—		(224,172)
Issuance of common stock, net of withholdings	—		1,050		138		—		1,188		—		1,188
Amortization of deferred compensation	—		9,724		—		—		9,724		—		9,724
Balance at June 30, 2020	$	1,407	$	10,742,796	$	172,304	$	(46,317)	$	10,870,190	$	615	$	10,870,805
Net income attributable to common stockholders	—		—		147,703		—		147,703		—		147,703
Gain on cash flow hedges, net	—		—		—		1,333		1,333		—		1,333
Cash flow hedge losses reclassified to earnings	—		—		—		2,367		2,367		—		2,367
Change in redemption value of redeemable noncontrolling interest	—		—		62		—		62		—		62
Noncontrolling interest distribution and income allocation	—		—		—		—		—		(17)		(17)
Dividends declared to common stockholders ($1.59 per share)	—		—		(222,694)		—		(222,694)		—		(222,694)
Issuance of common stock, net of withholdings	—		105		—		—		105		—		105
Repurchase of common stock, including repurchase costs	(9)		(69,779)		(67,670)		—		(137,458)		—		(137,458)
Amortization of deferred compensation	—		8,036		—		—		8,036		—		8,036
Balance at September 30, 2020	$	1,398	$	10,681,158	$	29,705	$	(42,617)	$	10,669,644	$	598	$	10,670,242

The following summarizes the changes in equity for the nine months ended September 30, 2019 (dollars in thousands):

	Common stock		Additional paid-in capital		Accumulated earnings less dividends		Accumulated other comprehensive loss		Total AvalonBay stockholder's equity		Noncontrolling interests		Total equity
Balance at December 31, 2018	$	1,385	$	10,306,588	$	350,777	$	(26,144)	$	10,632,606	$	—	$	10,632,606
Net income attributable to common stockholders	—		—		170,366		—		170,366		—		170,366
Loss on cash flow hedges, net	—		—		—		(7,231)		(7,231)		—		(7,231)
Cash flow hedge losses reclassified to earnings	—		—		—		1,468		1,468		—		1,468
Change in redemption value of redeemable noncontrolling interest	—		—		(224)		—		(224)		—		(224)
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,166)		—		(212,166)		—		(212,166)
Issuance of common stock, net of withholdings	9		143,202		(1,892)		—		141,319		—		141,319
Amortization of deferred compensation	—		7,861		—		—		7,861		—		7,861
Balance at March 31, 2019	$	1,394	$	10,457,651	$	306,861	$	(31,907)	$	10,733,999	$	—	$	10,733,999
Net income attributable to common stockholders	—		—		168,281		—		168,281		—		168,281
Loss on cash flow hedges, net	—		—		—		(2,888)		(2,888)		—		(2,888)
Cash flow hedge losses reclassified to earnings	—		—		—		1,611		1,611		—		1,611
Change in redemption value of redeemable noncontrolling interest	—		—		(45)		—		(45)		—		(45)
Noncontrolling interests income allocation	—		—		—		—		—		530		530
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,549)		—		(212,549)		—		(212,549)
Issuance of common stock, net of withholdings	3		50,803		—		—		50,806		—		50,806
Amortization of deferred compensation	—		10,785		—		—		10,785		—		10,785
Balance at June 30, 2019	$	1,397	$	10,519,239	$	262,548	$	(33,184)	$	10,750,000	$	530	$	10,750,530
Net income attributable to common stockholders	—		—		279,677		—		279,677		—		279,677
Loss on cash flow hedges, net	—		—		—		(13,644)		(13,644)		—		(13,644)
Cash flow hedge losses reclassified to earnings	—		—		—		1,746		1,746		—		1,746
Change in redemption value of redeemable noncontrolling interest	—		—		(113)		—		(113)		—		(113)
Noncontrolling interests income allocation	—		—		—		—		—		118		118
Dividends declared to common stockholders ($1.52 per share)	—		—		(212,526)		—		(212,526)		—		(212,526)
Issuance of common stock, net of withholdings	—		(454)		(263)		—		(717)		—		(717)
Amortization of deferred compensation	—		10,002		—		—		10,002		—		10,002
Balance at September 30, 2019	$	1,397	$	10,528,787	$	329,323	$	(45,082)	$	10,814,425	$	648	$	10,815,073

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Investments in Real Estate Entities (Tables)

9 Months Ended

Sep. 30, 2020

Equity Method Investments and Joint Ventures [Abstract]

Summary of financial information of equity method investments

The following is a combined summary of the financial position of the entities accounted for using the equity method discussed above as of the dates presented, including development joint ventures started and unconsolidated communities sold during the respective periods (dollars in thousands):

	9/30/2020		12/31/2019
	(unaudited)
Assets:
Real estate, net	$	1,222,762	$	1,204,470
Other assets	265,048		196,488
Total assets	$	1,487,810	$	1,400,958
Liabilities and partners' capital:
Mortgage notes payable, net (1)	$	749,555	$	782,257
Other liabilities	158,875		157,379
Partners' capital	579,380		461,322
Total liabilities and partners' capital	$	1,487,810	$	1,400,958

_________________________________

(1)    The Company has not guaranteed the outstanding debt, nor does the Company have any obligation to fund this debt should the unconsolidated entity be unable to do so.

The following is a combined summary of the operating results of the entities accounted for using the equity method discussed above for the periods presented (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
	(unaudited)				(unaudited)
Rental and other income	$	28,800	$	37,382	$	92,299	$	108,635
Operating and other expenses	(12,782)		(14,535)		(37,034)		(42,624)
Gain on sale of communities	18,408		—		18,448		—
Interest expense, net	(8,024)		(8,385)		(24,133)		(25,482)
Depreciation expense	(8,704)		(9,324)		(26,106)		(49,366)
Net income (loss)	$	17,698	$	5,138	$	23,474	$	(8,837)
Company's share of net income (loss) (1)	$	5,611	$	2,175	$	8,357	$	2,377
Amortization of excess investment and other	(528)		(532)		(1,587)		(1,597)
Equity in income from unconsolidated real estate investments	$	5,083	$	1,643	$	6,770	$	780

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Schedule of reconciliation of NOI to net income

A reconciliation of NOI to net income for the three and nine months ended September 30, 2020 and 2019 is as follows (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Net income	$	147,717	$	279,709	$	486,592	$	618,432
Indirect operating expenses, net of corporate income	23,837		20,195		70,043		62,935
Expensed transaction, development and other pursuit costs, net of recoveries	567		175		4,289		2,562
Interest expense, net	53,249		51,493		162,562		149,395
(Gain) loss on extinguishment of debt, net	(105)		93		9,333		602
General and administrative expense	13,985		12,769		46,878		45,440
Equity in income of unconsolidated real estate entities	(5,083)		(1,643)		(6,770)		(780)
Depreciation expense	175,348		165,463		529,508		490,213
Income tax (benefit) expense	(27)		11,184		(1,069)		11,178
Gain on sale of communities	(31,607)		(130,484)		(91,338)		(165,849)
Gain on other real estate transactions, net	(129)		(73)		(328)		(374)
Gain on for-sale condominiums, net of marketing and administrative costs	646		1,108		(4,162)		2,526
Net operating income from real estate assets sold or held for sale	(720)		(3,404)		(3,572)		(16,161)
Net operating income	$	377,678	$	406,585	$	1,201,966	$	1,200,119

Schedule of net operating income from real estate assets sold or held for sale, not classified as discontinued operations

The following is a summary of NOI from real estate assets sold or held for sale for the periods presented (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Rental income from real estate assets sold or held for sale	$	1,449	$	6,094	$	6,159	$	28,116
Operating expenses from real estate assets sold or held for sale	(729)		(2,690)		(2,587)		(11,955)
Net operating income from real estate assets sold or held for sale	$	720	$	3,404	$	3,572	$	16,161

Schedule of details of segment information

	For the three months ended				For the nine months ended
	Total revenue		NOI		Total revenue		NOI		Gross real estate (1)
For the period ended September 30, 2020
Established
New England	$	78,057	$	49,089	$	239,456	$	155,604	$	2,774,519
Metro NY/NJ	112,507		75,193		344,475		236,138		4,303,971
Mid-Atlantic	84,038		56,190		259,086		180,886		3,505,272
Pacific Northwest	27,125		18,578		83,539		59,042		994,486
Northern California	95,234		69,752		300,856		228,047		3,274,052
Southern California	105,964		71,125		327,865		228,181		4,152,209
Expansion Markets	5,633		3,015		17,424		10,004		320,944
Total Established	508,558		342,942		1,572,701		1,097,902		19,325,453
Other Stabilized	35,080		22,834		105,246		69,438		1,595,739
Development / Redevelopment	21,300		11,902		58,403		34,626		2,569,413
Land Held for Development	N/A		N/A		N/A		N/A		43,494
Non-allocated (2)	1,017		N/A		2,950		N/A		407,821
Total	$	565,955	$	377,678	$	1,739,300	$	1,201,966	$	23,941,920
For the period ended September 30, 2019
Established
New England	$	81,924	$	54,244	$	240,178	$	158,801	$	2,742,940
Metro NY/NJ	119,857		82,602		355,990		248,530		4,284,077
Mid-Atlantic	88,829		62,430		262,806		185,431		3,475,939
Pacific Northwest	28,589		20,684		84,615		61,498		988,952
Northern California	103,511		79,076		307,207		235,884		3,258,942
Southern California	113,202		79,357		337,488		239,452		4,119,312
Expansion Markets	5,825		3,261		17,607		10,177		320,114
Total Established	541,737		381,654		1,605,891		1,139,773		19,190,276
Other Stabilized	30,199		20,125		77,749		52,091		1,404,506
Development / Redevelopment	8,352		4,806		15,820		8,255		1,824,012
Land Held for Development	N/A		N/A		N/A		N/A		20,095
Non-allocated (2)	1,231		N/A		3,484		N/A		552,179
Total	$	581,519	$	406,585	$	1,702,944	$	1,200,119	$	22,991,068

__________________________________

(1)Does not include gross real estate either sold or classified as held for sale subsequent to September 30, 2019 of $131,790.

(2)Revenue represents third-party management, accounting, and developer fees and miscellaneous income which are not allocated to a reportable segment. Gross real estate includes the for-sale residential condominiums at The Park Loggia, as discussed in Note 6, "Real Estate Disposition Activities."

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Stock-Based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Schedule of nonvested performance awards granted

Information with respect to performance awards granted is as follows:

	Performance awards	Weighted average grant date fair value per award
Outstanding at December 31, 2019	253,432	$	176.27
Granted (1)	76,458	238.72
Change in awards based on performance (2)	18,112	177.26
Converted to restricted stock	(96,317)	177.26
Forfeited	(10,488)	188.52
Outstanding at September 30, 2020	241,197	$	195.22

__________________________________

(1)The amount of restricted stock that ultimately may be earned is based on the total shareholder return metrics related to the Company's common stock for 38,461 performance awards and financial metrics related to operating performance, net asset value and leverage metrics of the Company for 37,997 performance awards.

(2)Represents the change in the number of performance awards earned based on performance achievement for the performance period.

Summary of valuation options

The Company used a Monte Carlo model to assess the compensation cost associated with the portion of the performance awards granted in 2020 for which achievement will be determined by using total shareholder return measures. The assumptions used are as follows:

	2020
Dividend yield	2.8%
Estimated volatility over the life of the plan (1)	11.1% - 15.5%
Risk free rate	1.45% - 1.62%
Estimated performance award value based on total shareholder return measure	$254.72

__________________________________

(1)Estimated volatility of the life of the plan is using 50% historical volatility and 50% implied volatility.

Schedule of restricted stock granted

Information with respect to restricted stock granted is as follows:

	Restricted stock shares	Restricted stock shares weighted average grant date fair value per share		Restricted stock shares converted from performance awards
Outstanding at December 31, 2019	148,326	$	181.29	163,111
Granted - restricted stock shares	69,109	221.18		96,317
Vested - restricted stock shares	(77,761)	178.32		(109,758)
Forfeited	(5,637)	195.89		(1,784)
Outstanding at September 30, 2020	134,037	$	202.96	147,886

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Fair Value (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of summary of consolidated Hedging Derivatives, excluding derivatives executed to hedge debt on communities classified as held for sale

The following table summarizes the consolidated derivative positions at September 30, 2020 (dollars in thousands):

	Non-designated Hedges Interest Rate Caps			Cash Flow Hedges Interest Rate Swaps
Notional balance	$	440,097		$	150,000
Weighted average interest rate (1)	1.7		%	N/A
Weighted average swapped/capped interest rate	6.5		%	0.7		%
Earliest maturity date	January 2021			May 2021
Latest maturity date	November 2021			May 2021

____________________________________

(1)For debt hedged by interest rate caps, represents the weighted average interest rate on the hedged debt prior to any impact of the associated interest rate cap.

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)

The following table summarizes the deferred losses reclassified from accumulated other comprehensive loss as a component of interest expense, net (dollars in thousands):

	For the three months ended				For the nine months ended
	9/30/2020		9/30/2019		9/30/2020		9/30/2019
Cash flow hedge losses reclassified to earnings	$	2,367	$	1,746	$	6,617	$	4,825

Schedule of summary of classification between the three levels of the fair value hierarchy of the Company's financial instruments measured at fair value on a recurring basis

The following tables summarize the classification between the three levels of the fair value hierarchy of the Company's financial instruments measured/disclosed at fair value on a recurring basis (dollars in thousands):

	9/30/2020
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	1,413	$	—	$	1,413	$	—
DownREIT units	(1,120)		(1,120)		—		—
Indebtedness
Fixed rate unsecured notes	(7,269,443)		(7,269,443)		—		—
Secured notes and variable rate unsecured indebtedness	(1,073,689)		—		(1,073,689)		—
Total	$	(8,342,839)	$	(7,270,563)	$	(1,072,276)	$	—

	12/31/2019
Description	Total Fair Value		Quoted Prices in Active Markets for Identical Asset (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash Flow Hedges
Interest Rate Swaps - Assets	$	388	$	—	$	388	$	—
Interest Rate Swaps - Liabilities	(6,379)		—		(6,379)		—
Puts	(206)		—		—		(206)
DownREIT units	(1,573)		(1,573)		—		—
Indebtedness
Fixed rate unsecured notes	(6,197,771)		(6,197,771)		—		—
Secured notes and variable rate unsecured indebtedness	(1,398,147)		—		(1,398,147)		—
Total	$	(7,603,688)	$	(6,199,344)	$	(1,404,138)	$	(206)

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Organization, Basis of Presentation and Significant Accounting Policies (Details) ft² in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($) residential_condominium ft² home community state	Sep. 30, 2020 USD ($) ft² home residential_condominium community state
Real Estate Properties [Line Items]
Number of operating apartment communities | community	275	275
Number of apartment homes included in operating apartment communities owned	80,292	80,292
Number of states where operating apartment communities owned are located | state	11	11
Number of Communities with Apartments under Reconstruction	1	1
Number of Apartment Homes under Reconstruction	344	344
Number of owned communities under construction | community	19	19
Expected number of apartment homes under construction	6,384	6,384
Number of Residential Condominium Units Sold | residential_condominium	7	59
Communities under development rights | community	27	27
Estimated number of apartment homes in communities to be developed	9,320	9,320
Accounts Receivable, Credit Loss Expense (Reversal) | $	$ 18,755	$ 43,034
The Park Loggia [Member]
Real Estate Properties [Line Items]
Number Of Residential Condominium Units	172	172
Commercial Square Feet | ft²	67	67
Percent of Commercial Square Feet Leased	64.00%	64.00%

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Organization, Basis of Presentation and Significant Accounting Policies (Details 2) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic and diluted shares outstanding
Weighted average common shares - basic (in shares)	140,271,574			139,340,142			140,366,438	138,931,955
Weighted average DownREIT units outstanding (in shares)	7,500			7,500			7,500	7,500
Effect of dilutive securities (in shares)	324,648			505,032			328,865	498,609
Weighted average common shares - diluted (in shares)	140,603,722			139,852,674			140,702,803	139,438,064
Calculation of Earnings per Share - basic
Net income attributable to common stockholders	$ 147,703	$ 170,828	$ 167,971	$ 279,677	$ 168,281	$ 170,366	$ 486,502	$ 618,324
Net income allocated to unvested restricted shares	(342)			(704)			(1,158)	(1,655)
Net income attributable to common stockholders, adjusted	$ 147,361			$ 278,973			$ 485,344	$ 616,669
Weighted average common shares - basic (in shares)	140,271,574			139,340,142			140,366,438	138,931,955
Earnings per common share - basic (in dollars per share)	$ 1.05			$ 2.00			$ 3.46	$ 4.44
Calculation of Earnings per Share - diluted
Net income attributable to common stockholders	$ 147,703	$ 170,828	$ 167,971	$ 279,677	$ 168,281	$ 170,366	$ 486,502	$ 618,324
Add: noncontrolling interests of DownREIT unitholders in consolidated partnerships	12			11			36	34
Adjusted net income attributable to common stockholders	$ 147,715			$ 279,688			$ 486,538	$ 618,358
Weighted average common shares - diluted (in shares)	140,603,722			139,852,674			140,702,803	139,438,064
Earnings per common share - diluted (in dollars per share)	$ 1.05			$ 2.00			$ 3.46	$ 4.43

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Organization, Basis of Presentation and Significant Accounting Policies (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Management, development and other fees	$ 1,017	$ 1,231	$ 2,950	$ 3,484
Rental and other income	566,387	586,382	1,742,509	1,727,576
Total revenue	567,404	587,613	1,745,459	1,731,060
Operating Segments | Established Communities
Disaggregation of Revenue [Line Items]
Total revenue	508,558	541,737	1,572,701	1,605,891
Operating Segments | Other Stabilized Communities
Disaggregation of Revenue [Line Items]
Total revenue	35,080	30,199	105,246	77,749
Non-allocated
Disaggregation of Revenue [Line Items]
Total revenue	1,017	1,231	2,950	3,484
Continuing Operations
Disaggregation of Revenue [Line Items]
Management, development and other fees	3,790	3,605	10,521	10,539
Rental and other income	561,883	577,607	1,728,394	1,691,491
Gain on Business Interruption Insurance Recovery	282	307	385	914
Total revenue	565,955	581,519	1,739,300	1,702,944
Continuing Operations | Management, development and other fees
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,017	1,231	2,950	3,484
Continuing Operations | Rental and non-rental related income
Disaggregation of Revenue [Line Items]
Management, development and other fees	2,773	2,374	7,571	7,055
Continuing Operations | Operating Segments | Established Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,959	1,796	5,416	5,753
Rental and other income	506,587	539,634	1,567,170	1,599,224
Gain on Business Interruption Insurance Recovery	12	307	115	914
Total revenue	508,558	541,737	1,572,701	1,605,891
Continuing Operations | Operating Segments | Other Stabilized Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	477	445	1,271	1,078
Rental and other income	34,333	29,754	103,705	76,671
Gain on Business Interruption Insurance Recovery	270	0	270	0
Total revenue	35,080	30,199	105,246	77,749
Continuing Operations | Operating Segments | Development/ Redevelopment Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	337	133	884	224
Rental and other income	20,963	8,219	57,519	15,596
Gain on Business Interruption Insurance Recovery	0	0	0	0
Total revenue	21,300	8,352	58,403	15,820
Continuing Operations | Operating Segments | Management, development and other fees | Established Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0	0	0
Continuing Operations | Operating Segments | Management, development and other fees | Other Stabilized Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0	0	0
Continuing Operations | Operating Segments | Management, development and other fees | Development/ Redevelopment Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	0	0	0	0
Continuing Operations | Operating Segments | Rental and non-rental related income | Established Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,959	1,796	5,416	5,753
Continuing Operations | Operating Segments | Rental and non-rental related income | Other Stabilized Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	477	445	1,271	1,078
Continuing Operations | Operating Segments | Rental and non-rental related income | Development/ Redevelopment Communities
Disaggregation of Revenue [Line Items]
Management, development and other fees	337	133	884	224
Continuing Operations | Non-allocated
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,017	1,231	2,950	3,484
Rental and other income	0	0	0	0
Gain on Business Interruption Insurance Recovery	0	0	0	0
Total revenue	1,017	1,231	2,950	3,484
Continuing Operations | Non-allocated | Management, development and other fees
Disaggregation of Revenue [Line Items]
Management, development and other fees	1,017	1,231	2,950	3,484
Continuing Operations | Non-allocated | Rental and non-rental related income
Disaggregation of Revenue [Line Items]
Management, development and other fees	$ 0	$ 0	$ 0	$ 0

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Interest Capitalized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest Capitalized
Capitalized interest during the development and redevelopment of real estate assets	$ 11,221	$ 15,443	$ 33,738	$ 50,159

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Mortgage Notes Payable, Unsecured Notes and Credit Facility (Details) - USD ($)	Sep. 30, 2020	Feb. 29, 2020	Dec. 31, 2019
Notes Payable, Unsecured Notes and Credit Facility
Total mortgage notes payable and unsecured notes and Term Loans	$ 7,631,099,000		$ 7,355,371,000
Credit Facility	0		0
Total mortgage notes payable, unsecured notes, Term Loans and Credit Facility	7,631,099,000		7,355,371,000
Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Long-term Debt, Percentage Bearing Fixed Interest, Amount	6,500,000,000		5,850,000,000
Variable rate notes	0		300,000,000
Total mortgage notes payable and unsecured notes and Term Loans	6,750,000,000
Amount of debt discount	10,782,000		8,610,000
Amount of deferred financing costs, net	38,968,000		32,742,000
Term Loans
Notes Payable, Unsecured Notes and Credit Facility
Variable rate notes	250,000,000		250,000,000
Secured notes
Notes Payable, Unsecured Notes and Credit Facility
Long-term Debt, Percentage Bearing Fixed Interest, Amount	409,649,000		479,221,000
Variable rate notes	471,450,000		476,150,000
Total mortgage notes payable and unsecured notes and Term Loans	575,532,000
Amount of debt discount	14,636,000		14,464,000
Amount of deferred financing costs, net	3,067,000		3,265,000
Unsecured Notes 2.30 Percent [Member]
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Face Amount		$ 700,000,000
Line of Credit [Member]
Notes Payable, Unsecured Notes and Credit Facility
Credit Facility	$ 0		$ 0

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Mortgage Notes Payable, Unsecured Notes and Credit Facility (Details 2) - USD ($)	1 Months Ended				3 Months Ended		9 Months Ended
	Aug. 31, 2020	May 31, 2020	Mar. 31, 2020	Feb. 29, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Notes Payable, Unsecured Notes and Credit Facility
Repayments of Unsecured Debt							$ 958,681,000	$ 0
Gain (Loss) on Extinguishment of Debt					$ 105,000	$ (93,000)	(9,333,000)	$ (602,000)
Credit Facility					0		0		$ 0
Net carrying value of apartment communities and improved land parcels securing debt					1,455,524,000		1,455,524,000
Unsecured Notes 2.45 Percent [Member]
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Face Amount		$ 600,000,000
Proceeds from Issuance of Debt		593,430,000
Secured Debt [Member]
Notes Payable, Unsecured Notes and Credit Facility
Long-term Debt, Percentage Bearing Fixed Interest, Amount					409,649,000		409,649,000		479,221,000
Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Long-term Debt, Percentage Bearing Fixed Interest, Amount					6,500,000,000		6,500,000,000		5,850,000,000
Unsecured Notes 2.30 Percent [Member]
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Face Amount				$ 700,000,000
Proceeds from Issuance of Debt				$ 694,701,000
Unsecured Notes 2.30 Percent [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage				2.30%
Floating Rate Unsecured Notes 300 Million [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Repayments of Unsecured Debt		300,000,000
Gain (Loss) on Extinguishment of Debt		$ 268,000
Notes Payable 3.625 Maturities 2020 and 2021 [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Gain (Loss) on Extinguishment of Debt			$ 9,170,000
Unsecured Notes 2.45 Percent [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage		2.45%
Notes Payable Maturities 2021 [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage			3.95%
Repayments of Unsecured Debt			$ 250,000,000
Notes Payable Maturities 2020 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage	4.18%			3.08%
Line of Credit [Member]
Notes Payable, Unsecured Notes and Credit Facility
Available borrowing capacity					1,750,000,000		$ 1,750,000,000
Annual facility fee, percentage							0.125%
Annual facility fee							$ 2,188,000
Credit Facility					0		0		0
Outstanding balance of letters of credit					$ 3,752,000		$ 3,752,000		11,488,000
Line of Credit [Member] | LIBOR
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)							0.775%
Current interest rate (as a percent)					0.92%		0.92%
Other Letter of Credit [Member]
Notes Payable, Unsecured Notes and Credit Facility
Outstanding balance of letters of credit					$ 31,822,000		$ 31,822,000		$ 24,939,000
Fixed Rate Mortgage Notes Payable [Member]
Notes Payable, Unsecured Notes and Credit Facility
Weighted average interest rate, debt (as a percent)					3.80%		3.80%		3.90%
Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage				2.38%
Notes Payable Maturities 2027 | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage					3.35%		3.35%
Notes Payable 3.625 Maturities 2020 [Member] | Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Debt Instrument, Interest Rate, Stated Percentage			3.625%
Repayments of Unsecured Debt			$ 400,000,000
Variable Rate Mortgage Notes Payable Unsecured Term Loan and Credit Facility [Member]
Notes Payable, Unsecured Notes and Credit Facility
Weighted average interest rate, debt (as a percent)					1.70%		1.70%		3.20%
Avalon San Bruno III [Member] | Notes Payable Maturities 2027 | Secured Debt [Member]
Notes Payable, Unsecured Notes and Credit Facility
Long-term Debt, Percentage Bearing Fixed Interest, Amount				$ 51,000,000
Avalon Hoboken [Member] | Notes Payable Maturities 2020, Fixed Rate [Member] | Secured Debt [Member]
Notes Payable, Unsecured Notes and Credit Facility
Repayments of Secured Debt	$ 67,904,000

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Mortgage Notes Payable, Unsecured Notes and Credit Facility (Details 3) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Aug. 31, 2020	Mar. 31, 2020	Feb. 29, 2020	Dec. 31, 2019
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 7,631,099				$ 7,355,371
Notes Payable Maturities 2020 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Stated interest rate of unsecured notes (as a percent)		4.18%		3.08%
Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Stated interest rate of unsecured notes (as a percent)				2.38%
Secured notes
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	305,567
Mortgage notes payable and unsecured notes	575,532
Secured notes | Notes Payable Maturities 2020 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	1,285
Mortgage notes payable and unsecured notes	0
Secured notes | Notes Payable Maturities 2021 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	9,304
Mortgage notes payable and unsecured notes	27,844
Secured notes | Notes payable maturing in 2022
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	9,918
Secured notes | Notes Payable Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	10,739
Secured notes | Notes Payable Maturities 2024
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	11,677
Secured notes | Notes Payable Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	12,408
Secured notes | Notes Payable Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	13,445
Secured notes | Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	15,080
Mortgage notes payable and unsecured notes	236,100
Secured notes | Notes Payable Maturities 2028
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	20,607
Secured notes | Notes Payable Maturities 2029 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	11,742
Mortgage notes payable and unsecured notes	66,250
Secured notes | Notes Payable Maturities Thereafter
Notes Payable, Unsecured Notes and Credit Facility
Secured notes payments	189,362
Mortgage notes payable and unsecured notes	245,338
Unsecured notes
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	6,750,000
Unsecured notes | Notes Payable Maturities 2021 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Stated interest rate of unsecured notes (as a percent)			3.95%
Unsecured notes | Notes payable maturing in 2022
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 450,000
Stated interest rate of unsecured notes (as a percent)	2.95%
Unsecured notes | Variable Rate Unsecured Term Loan $100 Million
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 100,000
Unsecured notes | Variable Rate Unsecured Term Loan $100 Million | LIBOR
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.90%
Unsecured notes | Notes payable 4.200 Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 350,000
Stated interest rate of unsecured notes (as a percent)	4.20%
Unsecured notes | Notes Payable 2.850 Maturities 2023
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 250,000
Stated interest rate of unsecured notes (as a percent)	2.85%
Unsecured notes | Notes Payable Maturities 2024
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 300,000
Stated interest rate of unsecured notes (as a percent)	3.50%
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 150,000
Unsecured notes | Variable Rate Unsecured Term Loan $150 Million | LIBOR
Notes Payable, Unsecured Notes and Credit Facility
Debt instrument, basis spread on variable rate (as a percent)	0.85%
Unsecured notes | Notes Payable 3.450 Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 525,000
Stated interest rate of unsecured notes (as a percent)	3.45%
Unsecured notes | Notes Payable 3.500 Maturities 2025
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 300,000
Stated interest rate of unsecured notes (as a percent)	3.50%
Unsecured notes | Notes Payable 2.950 Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 475,000
Stated interest rate of unsecured notes (as a percent)	2.95%
Unsecured notes | Notes Payable 2.900 Maturities 2026
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 300,000
Stated interest rate of unsecured notes (as a percent)	2.90%
Unsecured notes | Notes Payable Maturities 2027
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 400,000
Stated interest rate of unsecured notes (as a percent)	3.35%
Unsecured notes | Notes Payable Maturities 2028
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 450,000
Stated interest rate of unsecured notes (as a percent)	3.20%
Unsecured notes | Notes Payable Maturities 2029 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 450,000
Stated interest rate of unsecured notes (as a percent)	3.30%
Unsecured notes | Notes Payable Maturities 2030 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 700,000
Stated interest rate of unsecured notes (as a percent)	2.30%
Unsecured notes | Notes Payable Maturities 2031 [Member]
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 600,000
Stated interest rate of unsecured notes (as a percent)	2.45%
Unsecured notes | Notes Payable Maturities 2046
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 350,000
Stated interest rate of unsecured notes (as a percent)	3.90%
Unsecured notes | Notes Payable Maturities 2047
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 300,000
Stated interest rate of unsecured notes (as a percent)	4.15%
Unsecured notes | Notes Payable Maturities 2048
Notes Payable, Unsecured Notes and Credit Facility
Mortgage notes payable and unsecured notes	$ 300,000
Stated interest rate of unsecured notes (as a percent)	4.35%

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Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Class of Stock [Line Items]
Issuance of common stock, net							$ 1,599	$ 207,789
Changes in equity
Beginning Balance	$ 10,870,805	$ 10,912,542	$ 10,990,198	$ 10,750,530	$ 10,733,999	$ 10,632,606	10,990,198	10,632,606
Net income attributable to common stockholders	147,703	170,828	167,971	279,677	168,281	170,366	486,502	618,324
Gain (loss) on cash flow hedges	1,333	(1,461)	(17,603)	(13,644)	(2,888)	(7,231)	(17,731)	(23,763)
Cash flow hedge losses reclassified to earnings	2,367	2,301	1,949	1,746	1,611	1,468	6,617	4,825
Change in redemption value of redeemable noncontrolling interest	62	(146)	471	(113)	(45)	(224)
Noncontrolling interest distribution and income allocation	(17)	1	(35)	118	530
Dividends, Common Stock	(222,694)	(224,172)	(224,083)	(212,526)	(212,549)	(212,166)
Issuance of common stock, net of withholdings	105	1,188	(14,107)	(717)	50,806	141,319
Stock Repurchased During Period, Value	(137,458)
Amortization of deferred compensation	8,036	9,724	7,781	10,002	10,785	7,861
Ending Balance	$ 10,670,242	$ 10,870,805	$ 10,912,542	$ 10,815,073	$ 10,750,530	$ 10,733,999	10,670,242	10,815,073
Dividends declared to common stockholders (in dollars per share)	$ 1.59	$ 1.59	$ 1.59	$ 1.52	$ 1.52	$ 1.52
Common stock
Changes in equity
Beginning Balance	$ 1,407	$ 1,407	$ 1,406	$ 1,397	$ 1,394	$ 1,385	1,406	1,385
Issuance of common stock, net of withholdings		0	1		3	9
Stock Repurchased During Period, Value	(9)
Ending Balance	1,398	1,407	1,407	1,397	1,397	1,394	1,398	1,397
Additional paid-in capital
Changes in equity
Beginning Balance	10,742,796	10,732,022	10,736,733	10,519,239	10,457,651	10,306,588	10,736,733	10,306,588
Issuance of common stock, net of withholdings	105	1,050	(12,492)	(454)	50,803	143,202
Stock Repurchased During Period, Value	(69,779)
Amortization of deferred compensation	8,036	9,724	7,781	10,002	10,785	7,861
Ending Balance	10,681,158	10,742,796	10,732,022	10,528,787	10,519,239	10,457,651	10,681,158	10,528,787
Accumulated earnings less dividends
Changes in equity
Beginning Balance	172,304	225,656	282,913	262,548	306,861	350,777	282,913	350,777
Net income attributable to common stockholders	147,703	170,828	167,971	279,677	168,281	170,366
Change in redemption value of redeemable noncontrolling interest	62	(146)	471	(113)	(45)	(224)	387	(382)
Dividends, Common Stock	(222,694)	(224,172)	(224,083)	(212,526)	(212,549)	(212,166)
Issuance of common stock, net of withholdings		138	(1,616)	(263)	0	(1,892)
Stock Repurchased During Period, Value	(67,670)
Ending Balance	29,705	172,304	225,656	329,323	262,548	306,861	29,705	329,323
Accumulated other comprehensive loss
Changes in equity
Beginning Balance	(46,317)	(47,157)	(31,503)	(33,184)	(31,907)	(26,144)	(31,503)	(26,144)
Gain (loss) on cash flow hedges	1,333	(1,461)	(17,603)	(13,644)	(2,888)	(7,231)
Cash flow hedge losses reclassified to earnings	2,367	2,301	1,949	1,746	1,611	1,468
Ending Balance	(42,617)	(46,317)	(47,157)	(45,082)	(33,184)	(31,907)	(42,617)	(45,082)
Parent [Member]
Changes in equity
Beginning Balance	10,870,190	10,911,928	10,989,549	10,750,000	10,733,999	10,632,606	10,989,549	10,632,606
Net income attributable to common stockholders	147,703	170,828	167,971	279,677	168,281	170,366
Gain (loss) on cash flow hedges	1,333	(1,461)	(17,603)	(13,644)	(2,888)	(7,231)
Cash flow hedge losses reclassified to earnings	2,367	2,301	1,949	1,746	1,611	1,468
Change in redemption value of redeemable noncontrolling interest	62	(146)	471	(113)	(45)	(224)
Dividends, Common Stock	(222,694)	(224,172)	(224,083)	(212,526)	(212,549)	(212,166)
Issuance of common stock, net of withholdings	105	1,188	(14,107)	(717)	50,806	141,319
Stock Repurchased During Period, Value	(137,458)
Amortization of deferred compensation	8,036	9,724	7,781	10,002	10,785	7,861
Ending Balance	10,669,644	10,870,190	10,911,928	10,814,425	10,750,000	$ 10,733,999	10,669,644	10,814,425
Noncontrolling Interest [Member]
Changes in equity
Beginning Balance	615	614	649	530			649
Noncontrolling interest distribution and income allocation	(17)	1	(35)	118	530
Ending Balance	$ 598	$ 615	$ 614	$ 648	$ 530		598	$ 648
Continuous Equity Program CEP V [Member]
Class of Stock [Line Items]
Issuance of common stock, net							$ 0

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Equity (Details 2) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jul. 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	280,000,000			280,000,000
Preferred stock, shares authorized (in shares)	50,000,000			50,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	1,902
Common stock issued through the dividend reinvestment plan (in shares)	1,967	1,594
Number of shares of stock grants withheld (in shares)	73,103	83,602
Stock Issued During Period, Shares, Employee Stock Purchase Plans	8,685
Stock issued during period, shares, share-based compensation, forfeited (in shares)	7,421
Treasury Stock, Shares, Acquired	912,733
Treasury Stock Acquired, Average Cost Per Share	$ 150.58
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 362,560,000
Issuance of common stock, net	1,599,000	$ 207,789,000
2020 Stock Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 500,000,000
Amended 2005 Stock Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 500,000,000
Continuous Equity Program CEP V [Member]
Class of Stock [Line Items]
Maximum value of shares of common stock that can be sold (in dollars)	1,000,000,000
Common stock value, remaining to be authorized under continuous equity program	752,878,000
Issuance of common stock, net	$ 0
Maximum | Continuous Equity Program CEP V [Member]
Class of Stock [Line Items]
Percentage of compensation received by sales agent	1.50%
Restricted Stock and Restricted Stock Converted From Performance Shares
Class of Stock [Line Items]
Equity instruments granted (in shares)	165,426	150,359

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Investments in Real Estate Entities - Narrative of Investment in Real Estate Entities (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) entity	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) entity	Sep. 30, 2019 USD ($)
Equity method investment
Expensed transaction, development and other pursuit costs, net of recoveries | $	$ 567	$ 175	$ 4,289	$ 2,562
Unconsolidated real estate entities
Equity method investment
Number of unconsolidated real estate entities | entity	8		8
Minimum | Unconsolidated real estate entities
Equity method investment
Ownership percentage	20.00%		20.00%
Maximum | Unconsolidated real estate entities
Equity method investment
Ownership percentage	50.00%		50.00%

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Investments in Real Estate Entities - Financial Position and Operating Results (Details) ft² in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) home ft²	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) home ft²	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
ASSETS
Real estate, net	$ 18,297,701,000		$ 18,297,701,000		$ 18,432,989,000
Total assets	19,144,611,000		19,144,611,000		19,121,051,000
LIABILITIES AND EQUITY
Mortgage notes payable, net	863,396,000		863,396,000		937,642,000
Partners' capital	10,669,644,000		10,669,644,000		10,989,549,000
Total liabilities and equity	19,144,611,000		19,144,611,000		19,121,051,000
Combined summary of the operating results of the accounted for using the equity method
Rental and other income	567,404,000	$ 587,613,000	1,745,459,000	$ 1,731,060,000
Operating and other expenses	(455,887,000)	(427,812,000)	(1,362,534,000)	(1,265,927,000)
Gain on sale of communities	31,607,000	130,484,000	91,338,000	165,849,000
Interest expense, net	(53,249,000)	(51,493,000)	(162,562,000)	(149,395,000)
Depreciation expense	(175,348,000)	(165,463,000)	(529,508,000)	(490,213,000)
Net income	147,717,000	279,709,000	486,592,000	618,432,000
Equity Method Investment, Net Income (Loss), Portion Attributable To Parent	5,611,000	2,175,000	8,357,000	2,377,000
Equity Method Investments, Amortization Of Excess Investment And Other	(528,000)	(532,000)	(1,587,000)	(1,597,000)
Equity in income of unconsolidated real estate entities	$ 5,083,000	1,643,000	$ 6,770,000	780,000
Avalon Venice on Rose [Member]
Combined summary of the operating results of the accounted for using the equity method
Commercial Square Feet | ft²	9		9
Avalon Venice on Rose [Member] | Notes Payable Maturities 2020 [Member] | Secured Debt [Member]
Combined summary of the operating results of the accounted for using the equity method
Repayments of Secured Debt			$ 27,117,000
US Fund [Member]
Combined summary of the operating results of the accounted for using the equity method
Proceeds from Sale of Real Estate			$ 65,000,000
US Fund [Member] | Avalon Venice on Rose [Member]
Combined summary of the operating results of the accounted for using the equity method
Number Of Apartment Homes Sold | home			70
Equity Method Investment, Realized Gain (Loss) on Disposal			$ 5,157,000
AVA Arts District [Member]
Combined summary of the operating results of the accounted for using the equity method
Number Of operating apartment communities owned | home	475		475
Ownership percentage	25.00%		25.00%
Equity method investments	$ 14,800,000		$ 14,800,000
Long-term Construction Loan	$ 165,600,000		$ 165,600,000
Real Estate Investments, Percent Of Development Funded By Borrowings	60.00%		60.00%
Proceeds from construction loans			$ 0
AVA Arts District [Member] | Maximum
Combined summary of the operating results of the accounted for using the equity method
Equity method investments	$ 27,600,000		$ 27,600,000
AVA Arts District [Member] | Joint Venture Partner [Member]
Combined summary of the operating results of the accounted for using the equity method
Ownership percentage	75.00%		75.00%
Equity Method Investment, Nonconsolidated Investee or Group of Investees
ASSETS
Real estate, net	$ 1,222,762,000		$ 1,222,762,000		1,204,470,000
Other assets	265,048,000		265,048,000		196,488,000
Total assets	1,487,810,000		1,487,810,000		1,400,958,000
LIABILITIES AND EQUITY
Mortgage notes payable, net	749,555,000		749,555,000		782,257,000
Other liabilities	158,875,000		158,875,000		157,379,000
Partners' capital	579,380,000		579,380,000		461,322,000
Total liabilities and equity	1,487,810,000		1,487,810,000		$ 1,400,958,000
Combined summary of the operating results of the accounted for using the equity method
Rental and other income	28,800,000	37,382,000	92,299,000	108,635,000
Operating and other expenses	(12,782,000)	(14,535,000)	(37,034,000)	(42,624,000)
Gain on sale of communities	18,408,000	0	18,448,000	0
Interest expense, net	(8,024,000)	(8,385,000)	(24,133,000)	(25,482,000)
Depreciation expense	(8,704,000)	(9,324,000)	(26,106,000)	(49,366,000)
Net income	$ 17,698,000	$ 5,138,000	$ 23,474,000	$ (8,837,000)

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Investments in Real Estate Entities - Expensed Acquisition, Development and Other Pursuit Costs and Impairment of Long-Lived Assets & Casualty Gains and Losses (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity method investment
Expensed transaction, development and other pursuit costs, net of recoveries	$ 567,000	$ 175,000	$ 4,289,000	$ 2,562,000
Impairment of investment in unconsolidated entities	0	0	0	0
Land Parcel [Member]
Equity method investment
Casualty and impairment (gain) loss, net	0	$ 0	0	$ 0
The Park Loggia [Member]
Equity method investment
Casualty and impairment (gain) loss, net	$ 0		$ 0

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Real Estate Disposition Activities (Details) ft² in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2020 USD ($) residential_condominium ft² home community	Jun. 30, 2020 USD ($) home	Mar. 31, 2020 USD ($) home	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) ft² residential_condominium community home	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Summary of income from discontinued operations
Gain on sale of communities	$ 31,607,000			$ 130,484,000	$ 91,338,000	$ 165,849,000
Number Of Communities Held For Sale | community	0				0
Number of Residential Condominium Units Sold | residential_condominium	7				59
Gain (Loss) on Sale of Other Investments					$ 8,174,000	0
Other Selling, General and Administrative Expense	$ 1,373,000			$ 1,108,000	4,012,000	$ 2,526,000
For-sale condominium inventory	$ 298,429,000				298,429,000		$ 457,809,000
Avalon Shelton [Member]
Summary of income from discontinued operations
Number Of Apartment Homes Sold | home			250
Proceeds from Sale of Real Estate			$ 64,750,000
Gain on sale of communities			$ 24,413,000
Avalon Tinton Falls [Member]
Summary of income from discontinued operations
Number Of Apartment Homes Sold | home		216
Proceeds from Sale of Real Estate		$ 64,900,000
Gain on sale of communities		$ 35,297,000
Avalon Towers [Member]
Summary of income from discontinued operations
Number Of Apartment Homes Sold | home	109
Proceeds from Sale of Real Estate	$ 54,000,000
Gain on sale of communities	31,603,000
The Park Loggia [Member]
Summary of income from discontinued operations
Proceeds from Sale of Real Estate	$ 15,699,000				$ 182,512,000
Number Of Residential Condominium Units | home	172				172
Commercial Square Feet | ft²	67				67
Gain (Loss) on Sale of Other Investments	$ 727,000				$ 8,174,000

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Commitments and Contingencies - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) community property Lease	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) community property Lease	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Number Of Office Leases | Lease	15		15
Operating lease assets	$ 135,885		$ 135,885		$ 103,063
Operating lease obligation	162,683		162,683		120,261
Operating Lease, Expense	3,958	$ 3,618	12,115	$ 10,723
Finance lease asset	21,738		21,738		21,898
Finance lease obligation	$ 20,176		$ 20,176		$ 20,207
Properties on Land Subject to Land Leases
Lessee, Lease, Description [Line Items]
Number Of operating apartment communities owned | community	11		11
Number of operating apartment communities under construction | community	1		1
Number of commercial properties owned | property	2		2
Assets Held under Operating Leases [Member]
Lessee, Lease, Description [Line Items]
Number Of operating apartment communities owned | community	10		10
Assets Held under Finance Leases [Member]
Lessee, Lease, Description [Line Items]
Number Of operating apartment communities owned | community	1		1
Number Of Finance Leases For Parking Garages Adjacent To Communities | Lease	2		2

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Segment Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reconciliation of NOI to net income
Net income	$ 147,717	$ 279,709	$ 486,592	$ 618,432
Indirect operating expenses, net of corporate income	23,837	20,195	70,043	62,935
Expensed transaction, development and other pursuit costs, net of recoveries	567	175	4,289	2,562
Interest expense, net	53,249	51,493	162,562	149,395
(Gain) loss on extinguishment of debt, net	(105)	93	9,333	602
General and administrative expense	13,985	12,769	46,878	45,440
Equity in income of unconsolidated real estate entities	(5,083)	(1,643)	(6,770)	(780)
Depreciation expense	175,348	165,463	529,508	490,213
Income tax (benefit) expense	(27)	11,184	(1,069)	11,178
Gain on sale of communities	(31,607)	(130,484)	(91,338)	(165,849)
Gain on other real estate transactions, net	(129)	(73)	(328)	(374)
Gain on for-sale condominiums, net of marketing and administrative costs	646	1,108	(4,162)	2,526
Net operating income from real estate assets sold or held for sale	(720)	(3,404)	(3,572)	(16,161)
Net operating income	$ 377,678	$ 406,585	$ 1,201,966	$ 1,200,119

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Segment Reporting (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting [Abstract]
Rental income from real estate assets sold or held for sale	$ 1,449	$ 6,094	$ 6,159	$ 28,116
Operating expenses from real estate assets sold or held for sale	(729)	(2,690)	(2,587)	(11,955)
Net operating income from real estate assets sold or held for sale	$ 720	$ 3,404	$ 3,572	$ 16,161

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Segment Reporting (Details 3) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting
Total revenue	$ 567,404	$ 587,613	$ 1,745,459	$ 1,731,060
NOI	377,678	406,585	1,201,966	1,200,119
Gross real estate	23,941,920	22,991,068	23,941,920	22,991,068
Operating Segments | Established
Segment Reporting
Total revenue	508,558	541,737	1,572,701	1,605,891
NOI	342,942	381,654	1,097,902	1,139,773
Gross real estate	19,325,453	19,190,276	19,325,453	19,190,276
Operating Segments | Established | New England
Segment Reporting
Total revenue	78,057	81,924	239,456	240,178
NOI	49,089	54,244	155,604	158,801
Gross real estate	2,774,519	2,742,940	2,774,519	2,742,940
Operating Segments | Established | Metro NY/NJ
Segment Reporting
Total revenue	112,507	119,857	344,475	355,990
NOI	75,193	82,602	236,138	248,530
Gross real estate	4,303,971	4,284,077	4,303,971	4,284,077
Operating Segments | Established | Mid-Atlantic
Segment Reporting
Total revenue	84,038	88,829	259,086	262,806
NOI	56,190	62,430	180,886	185,431
Gross real estate	3,505,272	3,475,939	3,505,272	3,475,939
Operating Segments | Established | Pacific Northwest
Segment Reporting
Total revenue	27,125	28,589	83,539	84,615
NOI	18,578	20,684	59,042	61,498
Gross real estate	994,486	988,952	994,486	988,952
Operating Segments | Established | Northern California
Segment Reporting
Total revenue	95,234	103,511	300,856	307,207
NOI	69,752	79,076	228,047	235,884
Gross real estate	3,274,052	3,258,942	3,274,052	3,258,942
Operating Segments | Established | Southern California
Segment Reporting
Total revenue	105,964	113,202	327,865	337,488
NOI	71,125	79,357	228,181	239,452
Gross real estate	4,152,209	4,119,312	4,152,209	4,119,312
Operating Segments | Established | Expansion Markets [Member]
Segment Reporting
Total revenue	5,633	5,825	17,424	17,607
NOI	3,015	3,261	10,004	10,177
Gross real estate	320,944	320,114	320,944	320,114
Operating Segments | Other Stabilized
Segment Reporting
Total revenue	35,080	30,199	105,246	77,749
NOI	22,834	20,125	69,438	52,091
Gross real estate	1,595,739	1,404,506	1,595,739	1,404,506
Operating Segments | Development / Redevelopment
Segment Reporting
Total revenue	21,300	8,352	58,403	15,820
NOI	11,902	4,806	34,626	8,255
Gross real estate	2,569,413	1,824,012	2,569,413	1,824,012
Operating Segments | Disposals [Member]
Segment Reporting
Gross real estate		131,790		131,790
Land Held for Future Development
Segment Reporting
Gross real estate	43,494	20,095	43,494	20,095
Non-allocated
Segment Reporting
Total revenue	1,017	1,231	2,950	3,484
Gross real estate	407,821	552,179	407,821	552,179
Continuing Operations
Segment Reporting
Total revenue	565,955	581,519	1,739,300	1,702,944
Continuing Operations | Operating Segments | Established
Segment Reporting
Total revenue	508,558	541,737	1,572,701	1,605,891
Continuing Operations | Operating Segments | Other Stabilized
Segment Reporting
Total revenue	35,080	30,199	105,246	77,749
Continuing Operations | Non-allocated
Segment Reporting
Total revenue	$ 1,017	$ 1,231	$ 2,950	$ 3,484

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Stock-Based Compensation Plans (Details 2) - Performance Shares	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Performance awards
Equity instruments outstanding at the beginning of the period (in shares)	253,432
Equity instruments granted (in shares)	76,458
Change in awards based on performance (in shares)	18,112
Converted to restricted stock (in shares)	(96,317)
Forfeited (in shares)	(10,488)
Equity instruments outstanding at the end of the period (in shares)	241,197
Weighted average grant date fair value per award
Equity instruments outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 176.27
Grant date fair value per share (in dollars per share) | $ / shares	238.72
Change in awards based on performance (in dollars per share) | $ / shares	177.26
Converted to restricted stock (in dollars per share) | $ / shares	177.26
Forfeited (in dollars per share) | $ / shares	188.52
Equity instruments outstanding at the end of the period (in dollars per share) | $ / shares	$ 195.22
Grants in period based on total shareholder metrics	38,461
Grants in period based on financial metrics	37,997

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Stock-Based Compensation Plans Stock-Based Compensation Plans (Details 3) - Performance Shares	9 Months Ended
	Sep. 30, 2020 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	2.80%
Estimated volatility, Minimum (as a percent)	11.10%
Estimated volatility, Maximum (as a percent)	15.50%
Risk-free interest rate, minimum (as a percent)	1.45%
Risk-free interest rate, maximum (as a percent)	1.62%
Average estimated fair value (in dollars per share)	$ 254.72
Historical volatility (as a percent)	50.00%
Implied volatility (as a percent)	50.00%

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Stock-Based Compensation Plans Stock-Based Compensation Plans (Details 4) - $ / shares	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Restricted stock
Restricted stock shares
Equity instruments outstanding at the beginning of the period (in shares)	148,326
Equity instruments granted (in shares)	69,109	77,287
Vested (in shares)	(77,761)
Forfeited (in shares)	(5,637)
Equity instruments outstanding at the end of the period (in shares)	134,037
Restricted stock shares weighted average grant date fair value per share
Equity instruments outstanding at the beginning of the period (in dollars per share)	$ 181.29
Grant date fair value per share (in dollars per share)	221.18
Vested (in dollars per share)	178.32
Forfeited (in dollars per share)	195.89
Equity instruments outstanding at the end of the period (in dollars per share)	$ 202.96
Restricted Stock Converted From Performance Shares
Restricted stock shares
Equity instruments outstanding at the beginning of the period (in shares)	163,111
Equity instruments granted (in shares)	96,317	73,072
Vested (in shares)	(109,758)
Forfeited (in shares)	(1,784)
Equity instruments outstanding at the end of the period (in shares)	147,886

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Stock-Based Compensation Plans (Details 5) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Additional disclosures
Stock-based compensation expense	$ 17,385	$ 20,291
Capitalized stock-based compensation cost	$ 8,291	$ 7,622
Performance Shares
Additional disclosures
Grant date value (in dollars per share)	$ 225.30
Restricted stock and restricted stock units
Additional disclosures
Unrecognized compensation cost for unvested restricted stock	$ 30,677
Weighted average period for recognition of unrecognized compensation cost	1 year 10 months 24 days

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Related Party Arrangements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Related Party Arrangements
Management, development and other fees	$ 1,017	$ 1,231	$ 2,950	$ 3,484
Compensation expense			17,385	20,291
Unconsolidated real estate entities
Related Party Arrangements
Outstanding receivables	5,241		5,241		$ 3,924
Non Employee Director | Restricted stock and deferred stock awards
Related Party Arrangements
Compensation expense	459	$ 458	1,360	$ 1,288
Amount of deferred compensation	$ 996		$ 996		$ 594

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Fair Value (Details)	3 Months Ended						9 Months Ended
	Sep. 30, 2020 USD ($) derivative	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2020 USD ($) venture derivative	Sep. 30, 2019 USD ($)	May 31, 2020 USD ($)	Feb. 29, 2020 USD ($)
Derivative instruments and Hedging Activities
Derivative, Notional Amounts Settled During Period		$ 250,000,000	$ 350,000,000				$ 600,000,000
Payments for (Proceeds from) Hedge, Financing Activities		4,821,000	20,314,000				25,135,000	$ 12,309,000
Gain (loss) on cash flow hedges	$ 1,333,000	$ (1,461,000)	$ (17,603,000)	$ (13,644,000)	$ (2,888,000)	$ (7,231,000)	$ (17,731,000)	$ (23,763,000)
Cash Flow Hedges
Derivative instruments and Hedging Activities
Number of derivative instruments held | derivative	3						3
Interest Rate Swap | Cash Flow Hedges
Derivative instruments and Hedging Activities
Derivative, Notional Amounts Entered into During Period							$ 150,000,000
Derivative, Notional Amount	$ 150,000,000						$ 150,000,000
Put Option
Derivative instruments and Hedging Activities
Number of ventures in which entity is required to purchase interest in investment at guaranteed minimum amount | venture							2
Reclassification out of Accumulated Other Comprehensive Income
Derivative instruments and Hedging Activities
Estimated hedging losses to be reclassified from accumulated other comprehensive loss into earnings within the next twelve months							$ 9,467,000
Not Designated as Hedging Instrument
Derivative instruments and Hedging Activities
Number of derivative instruments held | derivative	5						5
Not Designated as Hedging Instrument | Interest Rate Cap
Derivative instruments and Hedging Activities
Derivative, Notional Amount	$ 440,097,000						$ 440,097,000
Unsecured Notes 2.45 Percent [Member]
Derivative instruments and Hedging Activities
Debt Instrument, Face Amount									$ 600,000,000
Unsecured Notes 2.30 Percent [Member]
Derivative instruments and Hedging Activities
Debt Instrument, Face Amount										$ 700,000,000

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Fair Value Fair Value (Details 2)	Sep. 30, 2020 USD ($)
Not Designated as Hedging Instrument | Interest Rate Cap
Derivative instruments and Hedging Activities
Derivative, Notional Amount	$ 440,097,000
Derivative weighted average interest rate	1.70%
Derivative, average cap interest rate	6.50%
Cash Flow Hedges | Interest Rate Swap
Derivative instruments and Hedging Activities
Derivative, Notional Amount	$ 150,000,000
Derivative, average cap interest rate	0.70%

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Fair Value (Details 3) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Cash flow hedge losses reclassified to earnings	$ (2,367)	$ (2,301)	$ (1,949)	$ (1,746)	$ (1,611)	$ (1,468)	$ (6,617)	$ (4,825)

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Fair Value (Details 4) - Recurring basis - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Estimate of Fair Value Measurement
Financial Instruments Measured/Discussed at Fair Value
DownREIT units	$ (1,120)	$ (1,573)
Total	(8,342,839)	(7,603,688)
Estimate of Fair Value Measurement | Unsecured notes
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	(7,269,443)	(6,197,771)
Estimate of Fair Value Measurement | Secured Debt and Variable Rate Unsecured Indebtedness
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	(1,073,689)	(1,398,147)
Estimate of Fair Value Measurement | Interest Rate Swap | Cash Flow Hedges
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	1,413	388
Derivative liability		(6,379)
Estimate of Fair Value Measurement | Put Option
Financial Instruments Measured/Discussed at Fair Value
Fair value of remaining outstanding Puts		(206)
Fair Value, Inputs, Level 1
Financial Instruments Measured/Discussed at Fair Value
DownREIT units	(1,120)	(1,573)
Total	(7,270,563)	(6,199,344)
Fair Value, Inputs, Level 1 | Unsecured notes
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	(7,269,443)	(6,197,771)
Fair Value, Inputs, Level 2
Financial Instruments Measured/Discussed at Fair Value
Total	(1,072,276)	(1,404,138)
Fair Value, Inputs, Level 2 | Secured Debt and Variable Rate Unsecured Indebtedness
Financial Instruments Measured/Discussed at Fair Value
Indebtedness	(1,073,689)	(1,398,147)
Fair Value, Inputs, Level 2 | Interest Rate Swap | Cash Flow Hedges
Financial Instruments Measured/Discussed at Fair Value
Derivative assets	1,413	388
Derivative liability		(6,379)
Fair Value, Inputs, Level 3
Financial Instruments Measured/Discussed at Fair Value
Total	$ 0	(206)
Fair Value, Inputs, Level 3 | Put Option
Financial Instruments Measured/Discussed at Fair Value
Fair value of remaining outstanding Puts		$ (206)

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Subsequent Events (Details)	1 Months Ended	9 Months Ended
	Oct. 31, 2020 USD ($) land_parcel home community $ / shares shares	Sep. 30, 2020 USD ($) community $ / shares shares	Nov. 04, 2020 USD ($)	Dec. 31, 2019 USD ($)
Subsequent Event [Line Items]
Treasury Stock, Shares, Acquired | shares		912,733
Treasury Stock Acquired, Average Cost Per Share | $ / shares		$ 150.58
Number Of Communities Held For Sale | community		0
Credit Facility		$ 0		$ 0
Line of Credit [Member]
Subsequent Event [Line Items]
Credit Facility		$ 0		$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Treasury Stock, Shares, Acquired | shares	219,186
Treasury Stock Acquired, Average Cost Per Share | $ / shares	$ 148.17
Number Of Communities Held For Sale | community	3
Number of Land Parcels Acquired | land_parcel	3
Payments to Acquire Land	$ 59,145,000
Subsequent Event [Member] | Line of Credit [Member]
Subsequent Event [Line Items]
Credit Facility			$ 183,000,000
Subsequent Event [Member] | Subsequent Event Dispositions [Member]
Subsequent Event [Line Items]
Number of Apartment Homes Held For Sale | home	858
Real Estate Investments, Net	$ 126,397,000