10-Q

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 June 30, 2021

or

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

For the transition period from                  to                 

Commission File Number 001-12002

ACADIA REALTY TRUST

(Exact name of registrant in its charter)

Maryland  (State or other jurisdiction of  incorporation or organization)	23-2715194  (I.R.S. Employer  Identification No.)
411 THEODORE FREMD AVENUE, SUITE 300, RYE, NY  (Address of principal executive offices)	10580  (Zip Code)

(914) 288-8100

(Registrant’s telephone number, including area code)

Title of class of registered securities	Trading symbol	Name of exchange on which registered
Common shares of beneficial interest, par value $0.001 per share	AKR	The 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 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒ 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 (§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, a 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	☐	Emerging Growth Company	☐
Non-accelerated Filer	☐	Smaller Reporting 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 checkmark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act) Yes  ☐ No ☒

As of July 23, 2021 there were 88,433,959 common shares of beneficial interest, par value $0.001 per share (“Common Shares”), outstanding.

ACADIA REALTY TRUST AND SUBSIDIARIES

FORM 10-Q

INDEX

Item No.	Description	Page
	PART I - FINANCIAL INFORMATION
1.	Financial Statements	4
	Consolidated Balance Sheets as of June 30, 2021 (Unaudited) and December 31, 2020	4
	Consolidated Statements of Income (Unaudited) for the Three and Six Months Ended June 30, 2021 and 2020	5
	Consolidated Statements of Comprehensive (Loss) Income (Unaudited) for the Three and Six Months Ended June 30, 2021 and 2020	6
	Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) for the Three and Six Months Ended June 30, 2021 and 2020	7
	Consolidated Statements of Cash Flows (Unaudited) for the Six Months Ended June 30, 2021 and 2020	9
	Notes to Consolidated Financial Statements (Unaudited)	11
2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	46
3.	Quantitative and Qualitative Disclosures about Market Risk	58
4.	Controls and Procedures	60
	PART II - OTHER INFORMATION
1.	Legal Proceedings	61
1A.	Risk Factors	61
2.	Unregistered Sales of Equity Securities and Use of Proceeds	61
3.	Defaults Upon Senior Securities	61
4.	Mine Safety Disclosures	61
5.	Other Information	61
6.	Exhibits	62
	Signatures	63

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

Certain statements contained in this Quarterly Report on Form 10-Q (this “Report”) of Acadia Realty Trust, a Maryland real estate investment trust (the “Company”), may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements, which are based on certain assumptions and describe our future plans, strategies and expectations are generally identifiable by the use of words such as “may,” “will,” “should,” “expect,” “anticipate,” “estimate,” “believe,” “intend” or “project,” or the negative thereof, or other variations thereon or comparable terminology. Forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause our actual results and financial performance to be materially different from future results and financial performance expressed or implied by such forward-looking statements, including, but not limited to: (i) economic, political and social uncertainty surrounding the COVID-19 pandemic (the “COVID-19 Pandemic”), including (a) the effectiveness or lack of effectiveness of governmental relief in providing assistance to businesses, including the Company’s tenants, that have suffered significant declines in revenues as a result of governmental restrictions to contain or mitigate the COVID-19 Pandemic, as well as to adversely impacted individuals; (b) the rate and efficacy of COVID-19 vaccines; (c) the duration of any such orders or other formal recommendations for social distancing and the speed and extent to which revenues of the Company’s retail tenants recover following the lifting of any such orders or recommendations, (d) temporary or permanent migration out of major cities by customers, including cities where the Company’s properties are located, which may have a negative impact on the Company’s tenant’s businesses, (e) the potential impact of any such events on the obligations of the Company’s tenants to make rent and other payments or honor other commitments under existing leases, (f) to the extent we were seeking to sell properties in the near term, significantly greater uncertainty regarding our ability to do so at attractive prices, and (g) the potential adverse impact on returns from development and redevelopment projects; (ii) the ability and willingness of the Company’s tenants (in particular its major tenants) and other third parties to satisfy their obligations under their respective contractual arrangements with the Company; (iii) macroeconomic conditions, such as a disruption of or lack of access to the capital markets; (iv) the Company’s success in implementing its business strategy and its ability to identify, underwrite, finance, consummate and integrate diversifying acquisitions and investments; (v) changes in general economic conditions or economic conditions in the markets in which the Company may, from time to time, compete, and their effect on the Company’s revenues, earnings and funding sources; (vi) increases in the Company’s borrowing costs as a result of changes in interest rates and other factors, including the potential phasing out of the London Interbank Offered Rate after 2021; (vii) the Company’s ability to pay down, refinance, restructure or extend its indebtedness as it becomes due; (viii) the Company’s investments in joint ventures and unconsolidated entities, including its lack of sole decision-making authority and its reliance on its joint venture partners’ financial condition; (ix) the Company’s ability to obtain the financial results expected from its development and redevelopment projects; (x) the ability and willingness of the Company’s tenants to renew their leases with the Company upon expiration, the Company’s ability to re-lease its properties on the same or better terms in the event of nonrenewal or in the event the Company exercises its right to replace an existing tenant, and obligations the Company may incur in connection with the replacement of an existing tenant; (xi) the Company’s liability for environmental matters; (xii) damage to the Company’s properties from catastrophic weather and other natural events, and the physical effects of climate change; (xiii) uninsured losses; (xiv) the Company’s ability and willingness to maintain its qualification as a real estate investment trust (“REIT”) in light of economic, market, legal, tax and other considerations; (xv) information technology security breaches, including increased cybersecurity risks relating to the use of remote technology during the COVID-19 Pandemic; and (xvi) the loss of key executives.

The factors described above are not exhaustive and additional factors could adversely affect the Company’s future results and financial performance, including the risk factors discussed under the section captioned “Risk Factors” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020 and other periodic or current reports the Company files with the SEC, including those set forth under the headings “Item 1A. Risk Factors” and “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Report. These risks and uncertainties should be considered in evaluating any forward-looking statements contained or incorporated by reference herein. Any forward-looking statements speak only as of the date hereof. The Company expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in the Company’s expectations with regard thereto or change in the events, conditions or circumstances on which such forward-looking statements are based.

SPECIAL NOTE REGARDING CERTAIN REFERENCES

All references to “Notes” throughout the document refer to the footnotes to the consolidated financial statements of the registrant referenced in Part I, Item 1. Financial Statements.

3

PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	June 30,			December 31,
(dollars in thousands, except per share amounts)	2021			2020
ASSETS
Investments in real estate, at cost
Operating real estate, net	$	3,201,172		$	3,260,139
Real estate under development		217,620			247,349
Net investments in real estate		3,418,792			3,507,488
Notes receivable, net		117,280			101,450
Investments in and advances to unconsolidated affiliates		258,063			249,807
Other assets, net		159,592			173,809
Right-of-use assets - operating leases, net		42,398			76,268
Cash and cash equivalents		34,645			19,232
Restricted cash		15,094			14,692
Rents receivable, net		43,748			44,136
Total assets	$	4,089,612		$	4,186,882
LIABILITIES
Mortgage and other notes payable, net	$	1,162,617		$	1,204,581
Unsecured notes payable, net		440,088			420,858
Unsecured line of credit		61,405			138,400
Accounts payable and other liabilities		239,056			269,911
Lease liability - operating leases, net		40,861			88,816
Dividends and distributions payable		14,339			147
Distributions in excess of income from, and investments in, unconsolidated affiliates		14,896			15,616
Total liabilities		1,973,262			2,138,329
Commitments and contingencies
EQUITY
Acadia Shareholders' Equity
Common shares, $0.001 par value, authorized 200,000,000 shares, issued and outstanding 88,419,303 and 86,268,303 shares, respectively		88			86
Additional paid-in capital		1,730,686			1,683,165
Accumulated other comprehensive loss		(47,909	)		(74,891	)
Distributions in excess of accumulated earnings		(184,174	)		(167,046	)
Total Acadia shareholders’ equity		1,498,691			1,441,314
Noncontrolling interests		617,659			607,239
Total equity		2,116,350			2,048,553
Total liabilities and equity	$	4,089,612		$	4,186,882

The accompanying notes are an integral part of these consolidated financial statements.

4

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands except per share amounts)	2021			2020			2021			2020
Revenues
Rental income	$	73,666		$	62,639		$	140,871		$	133,096
Other		994			1,134			3,183			2,097
Total revenues		74,660			63,773			144,054			135,193
Operating expenses
Depreciation and amortization		31,345			33,793			62,735			67,170
General and administrative		10,671			8,720			19,667			17,790
Real estate taxes		12,504			10,697			23,966			21,144
Property operating		12,890			16,806			26,367			30,126
Impairment charges		—			—			—			51,549
Total operating expenses		67,410			70,016			132,735			187,779
Gain on disposition of properties		5,909			485			10,521			485
Operating income (loss)		13,159			(5,758	)		21,840			(52,101	)
Equity in earnings (losses) of unconsolidated affiliates		1,106			(786	)		3,369			469
Interest and other income		2,054			2,095			3,754			5,024
Realized and unrealized holding gains on investments and other		2,711			87,811			9,218			87,281
Interest expense		(17,605	)		(18,319	)		(34,746	)		(36,621	)
Income from continuing operations before income taxes		1,425			65,043			3,435			4,052
Income tax (provision) benefit		(194	)		(137	)		(344	)		815
Net income		1,231			64,906			3,091			4,867
Net loss (income) attributable to noncontrolling interests		2,687			(45,496	)		5,989			6,129
Net income attributable to Acadia	$	3,918		$	19,410		$	9,080		$	10,996
Basic and diluted earnings per share	$	0.04		$	0.22		$	0.10		$	0.12

The accompanying notes are an integral part of these consolidated financial statements.

5

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2021			2020			2021			2020
Net income	$	1,231		$	64,906		$	3,091		$	4,867
Other comprehensive (loss) income:
Unrealized (loss) gain on valuation of swap agreements		(10,073	)		(8,621	)		23,483			(83,395	)
Reclassification of realized interest on swap agreements		5,324			3,115			10,641			4,092
Other comprehensive (loss) income		(4,749	)		(5,506	)		34,124			(79,303	)
Comprehensive (loss) income		(3,518	)		59,400			37,215			(74,436	)
Comprehensive loss (income) attributable to noncontrolling interests		1,489			(44,484	)		(1,153	)		26,398
Comprehensive (loss) income attributable to Acadia	$	(2,029	)	$	14,916		$	36,062		$	(48,038	)

The accompanying notes are an integral part of these consolidated financial statements.

6

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

Three Months Ended June 30, 2021 and 2020

	Acadia Shareholders
(in thousands, except per share amounts)	Common Shares		Share Amount		Additional Paid-in Capital			Accumulated Other Comprehensive Loss			Distributions in Excess of Accumulated Earnings			Total Common Shareholders’ Equity			Noncontrolling Interests			Total Equity
Balance at April 1, 2021		86,302	$	86	$	1,683,552		$	(41,962	)	$	(174,829	)	$	1,466,847		$	617,522		$	2,084,369
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		7		—		115			—			—			115			(115	)		—
Issuance of Common Shares		2,072		2		45,675			—			—			45,677			—			45,677
Dividends/distributions declared ($0.15 per Common Share/OP Unit)		—		—		—			—			(13,263	)		(13,263	)		(1,052	)		(14,315	)
Employee and trustee stock compensation, net		38		—		225			—			—			225			2,399			2,624
Noncontrolling interest distributions		—		—		—			—			—			—			(4,355	)		(4,355	)
Noncontrolling interest contributions		—		—		—			—			—			—			5,868			5,868
Comprehensive (loss) income		—		—		—			(5,947	)		3,918			(2,029	)		(1,489	)		(3,518	)
Reallocation of noncontrolling interests		—		—		1,119			—			—			1,119			(1,119	)		—
Balance at June 30, 2021		88,419	$	88	$	1,730,686		$	(47,909	)	$	(184,174	)	$	1,498,691		$	617,659		$	2,116,350
Balance at April 1, 2020		85,990	$	86	$	1,686,794		$	(85,715	)	$	(166,701	)	$	1,434,464		$	577,096		$	2,011,560
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		260		—		4,072			—			—			4,072			(4,072	)		—
Repurchase of Common Shares		—		—		(34	)		—			—			(34	)		—			(34	)
Acquisition of noncontrolling interest		—		—		—			—			—			—			588			588
Dividends/distributions declared ($0 per Common Share/OP Unit)		—		—		—			—			—			—			(123	)		(123	)
Employee and trustee stock compensation, net		15		—		175			—			—			175			2,142			2,317
Noncontrolling interest distributions		—		—		—			—			—			—			(1,418	)		(1,418	)
Noncontrolling interest contributions		—		—		—			—			—			—			21,041			21,041
Comprehensive (loss) income		—		—		—			(4,494	)		19,410			14,916			44,484			59,400
Reallocation of noncontrolling interests		—		—		1,999			—			—			1,999			(1,999	)		—
Balance at June 30, 2020		86,265	$	86	$	1,693,006		$	(90,209	)	$	(147,291	)	$	1,455,592		$	637,739		$	2,093,331

The accompanying notes are an integral part of these consolidated financial statements.

7

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY

Six Months Ended June 30, 2021 and 2020

	Acadia Shareholders
(in thousands, except per share amounts)	Common Shares			Share Amount			Additional Paid-in Capital			Accumulated Other Comprehensive Loss			Distributions in Excess of Accumulated Earnings			Total Common Shareholders’ Equity			Noncontrolling Interests			Total Equity
Balance at January 1, 2021		86,269		$	86		$	1,683,165		$	(74,891	)	$	(167,046	)	$	1,441,314		$	607,239		$	2,048,553
Issuance of Common Shares		2,072			2			45,675			—			—			45,677			—			45,677
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		26			—			409			—			—			409			(409	)		—
Dividends/distributions declared ($0.30 per Common Share/OP Unit)		—			—			—			—			(26,208	)		(26,208	)		(2,100	)		(28,308	)
Employee and trustee stock compensation, net		52			—			687			—			—			687			6,448			7,135
Noncontrolling interest distributions		—			—			—			—			—			—			(11,031	)		(11,031	)
Noncontrolling interest contributions		—			—			—			—			—			—			17,109			17,109
Comprehensive income		—			—			—			26,982			9,080			36,062			1,153			37,215
Reallocation of noncontrolling interests		—			—			750			—			—			750			(750	)		—
Balance at June 30, 2021		88,419		$	88		$	1,730,686		$	(47,909	)	$	(184,174	)	$	1,498,691		$	617,659		$	2,116,350
Balance at January 1, 2020		87,050		$	87		$	1,706,357		$	(31,175	)	$	(132,961	)	$	1,542,308		$	644,657		$	2,186,965
Cumulative effect of change in accounting principle		—			—			—			—			(389	)		(389	)		(11	)		(400	)
Acquisition of noncontrolling interest		—			—			—			—			—			—			588			588
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		408			—			6,544			—			—			6,544			(6,544	)		—
Repurchase of Common Shares		(1,219	)		(1	)		(22,385	)		—			—			(22,386	)		—			(22,386	)
Dividends/distributions declared ($0.29 per Common Share/OP Unit)		—			—			—			—			(24,937	)		(24,937	)		(1,972	)		(26,909	)
Employee and trustee stock compensation, net		26			—			346			—			—			346			5,790			6,136
Noncontrolling interest distributions		—			—			—			—			—			—			(4,536	)		(4,536	)
Noncontrolling interest contributions		—			—			—			—			—			—			28,309			28,309
Comprehensive loss		—			—			—			(59,034	)		10,996			(48,038	)		(26,398	)		(74,436	)
Reallocation of noncontrolling interests		—			—			2,144			—			—			2,144			(2,144	)		—
Balance at June 30, 2020		86,265		$	86		$	1,693,006		$	(90,209	)	$	(147,291	)	$	1,455,592		$	637,739		$	2,093,331

The accompanying notes are an integral part of these consolidated financial statements.

8

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Six Months Ended June 30,
(in thousands)	2021			2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	3,091		$	4,867
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		62,735			67,170
Straight-line rents		(2,765	)		(2,888	)
Non-cash lease expense		2,066			1,368
Net unrealized holding gains on investments		(8,565	)		(64,937	)
Distributions of operating income from unconsolidated affiliates		1,387			2,206
Equity in earnings of unconsolidated affiliates		(3,369	)		(469	)
Stock compensation expense		7,135			6,136
Amortization of financing costs		2,546			2,920
Impairment charges		—			51,549
Gain on disposition of properties		(10,521	)		(485	)
Allowance for credit loss		1,238			9,682
Termination of ground lease		(3,615	)		—
Adjustments to straight-line rent reserves		511			6,493
Other, net		(4,127	)		(2,780	)
Changes in assets and liabilities:
Other liabilities		3,114			(6,684	)
Lease liability - operating leases		(1,533	)		(807	)
Prepaid expenses and other assets		(487	)		(4,213	)
Rents receivable		2,801			(22,290	)
Accounts payable and accrued expenses		(609	)		12,222
Net cash provided by operating activities		51,033			59,060
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of real estate		—			(21,208	)
Development, construction and property improvement costs		(16,620	)		(21,093	)
Proceeds from the disposition of properties, net		63,901			13,925
Investments in and advances to unconsolidated affiliates and other		(3,976	)		(3,270	)
Return of capital from unconsolidated affiliates and other		7,717			7,151
Issuance of notes receivable		(15,995	)		(59,000	)
Return (payment) of deposits for properties under contract		(1,000	)		187
Payment of deferred leasing costs		(3,080	)		(4,885	)
Change in control of previously unconsolidated affiliate		—			950
Net cash provided by (used in) investing activities		30,947			(87,243	)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on mortgage and other notes		(52,408	)		(14,360	)
Principal payments on unsecured debt		(102,800	)		(69,930	)
Proceeds received on mortgage and other notes		8,818			3,340
Proceeds from unsecured debt		49,295			181,700
Payments of finance lease obligations		—			(833	)
Proceeds from the sale (repurchase) of Common Shares		45,675			(22,386	)
Capital contributions from noncontrolling interests		17,109			28,309
Distributions to noncontrolling interests		(12,202	)		(8,178	)
Dividends paid to Common Shareholders		(12,945	)		(50,182	)
Deferred financing and other costs		(6,707	)		(960	)
Net cash (used in) provided by financing activities		(66,165	)		46,520
Increase in cash and restricted cash		15,815			18,337
Cash of $19,232 and $15,845 and restricted cash of $14,692 and $14,165, respectively, beginning of period		33,924			30,010
Cash of $34,645 and $34,273 and restricted cash of $15,094 and $14,074, respectively, end of period	$	49,739		$	48,347

9

ACADIA REALTY TRUST AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

	Six Months Ended June 30,
(in thousands)	2021		2020
Supplemental disclosure of cash flow information
Cash paid during the period for interest, net of capitalized interest of $1,832 and $4,656 respectively	$	20,666	$	26,558
Cash paid for income taxes, net of refunds	$	344	$	219
Supplemental disclosure of non-cash investing and financing activities
Right-of-use assets, operating leases modified in exchange for operating lease liabilities	$	412	$	—
Assumption of accounts payable and accrued expenses through acquisition of real estate	$	—	$	116
Distribution declared and payable on July 15, 2021 and 2020, respectively	$	14,314	$	123
Right-of-use assets, finance leases obtained in exchange for assets under capital lease	$	—	$	(70,427	)
Right-of-use assets, operating leases exchanged for operating lease liabilities	$	—	$	(1,432	)
Change in control of previously unconsolidated (consolidated) investment
Increase in real estate	$	—	$	(135,190	)
Decrease in investments in and advances to unconsolidated affiliates		—		96,816
Change in other assets and liabilities		—		1,238
Acquisition of noncontrolling interest asset		—		(588	)
Decrease in notes receivable		—		38,674
Increase in cash and restricted cash upon change of control	$	—	$	950

The accompanying notes are an integral part of these consolidated financial statements.

10

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

1. Organization, Basis of Presentation and Summary of Significant Accounting Policies

Organization

The Company is a fully-integrated equity REIT focused on the ownership, acquisition, development, and management of retail properties located primarily in high-barrier-to-entry, supply-constrained, densely-populated metropolitan areas in the United States.

All of the Company’s assets are held by, and all of its operations are conducted through, Acadia Realty Limited Partnership (the “Operating Partnership”) and entities in which the Operating Partnership owns an interest. As of June 30, 2021 and December 31, 2020, the Company controlled approximately 95% of the Operating Partnership as the sole general partner and is entitled to share, in proportion to its percentage interest, in the cash distributions and profits and losses of the Operating Partnership. The limited partners primarily represent entities or individuals that contributed their interests in certain properties or entities to the Operating Partnership in exchange for common or preferred units of limited partnership interest (“Common OP Units” or “Preferred OP Units”) and employees who have been awarded restricted Common OP Units (“LTIP Units”) as long-term incentive compensation (Note 13). Limited partners holding Common OP and LTIP Units are generally entitled to exchange their units on a one-for-one basis for common shares of beneficial interest, par value $0.001 per share, of the Company (“Common Shares”). This structure is referred to as an umbrella partnership REIT or “UPREIT.”

As of June 30, 2021, the Company has ownership interests in 130 properties within its core portfolio, which consist of those properties either 100% owned, or partially owned through joint venture interests, by the Operating Partnership, or subsidiaries thereof, not including those properties owned through its funds (“Core Portfolio”). The Company also has ownership interests in 50 properties within its opportunity funds, Acadia Strategic Opportunity Fund II, LLC (“Fund II”), Acadia Strategic Opportunity Fund III LLC (“Fund III”), Acadia Strategic Opportunity Fund IV LLC (“Fund IV”), and Acadia Strategic Opportunity Fund V LLC (“Fund V” and, collectively with Fund II, Fund III and Fund IV, the “Funds”). The 180 Core Portfolio and Fund properties primarily consist of street and urban retail and suburban shopping centers. In addition, the Company, together with the investors in the Funds, invested in operating companies through Acadia Mervyn Investors I, LLC (“Mervyns I,” which was liquidated in 2018) and Acadia Mervyn Investors II, LLC (“Mervyns II”), all on a non-recourse basis. The Company consolidates the Funds as it has (i) the power to direct the activities that most significantly impact the Funds’ economic performance, (ii) is obligated to absorb the Funds’ losses and (iii) has the right to receive benefits from the Funds that could potentially be significant.

The Operating Partnership is the sole general partner or managing member of the Funds and Mervyns II and earns fees or priority distributions for asset management, property management, construction, development, leasing, and legal services. Cash flows from the Funds and Mervyns II are distributed pro-rata to their respective partners and members (including the Operating Partnership) until each receives a certain cumulative return (“Preferred Return”) and the return of all capital contributions. Thereafter, remaining cash flow is distributed 20% to the Operating Partnership (“Promote”) and 80% to the partners or members (including the Operating Partnership). All transactions between the Funds and the Operating Partnership have been eliminated in consolidation.

The following table summarizes the general terms and Operating Partnership’s equity interests in the Funds and Mervyns II (dollars in millions):

Entity	Formation Date	Operating Partnership Share of Capital			Capital Called as of June 30, 2021 (b)		Unfunded Commitment (b, c)		Equity Interest Held By Operating Partnership (a)			Preferred Return			Total Distributions as of June 30, 2021 (b, c)
Fund II and Mervyns II (c)	6/2004		28.33	%	$	373.4	$	11.9		28.33	%		8	%	$	169.8
Fund III	5/2007		24.54	%		448.1		1.9		24.54	%		6	%		568.8
Fund IV	5/2012		23.12	%		488.1		41.9		23.12	%		6	%		193.1
Fund V (d)	8/2016		20.10	%		217.1		302.9		20.10	%		6	%		36.9

(a)Amount represents the current economic ownership at June 30, 2021, which could differ from the stated legal ownership based upon the cumulative preferred returns of the respective Fund.

(b)Represents the total for the Funds, including the Operating Partnership and noncontrolling interests’ shares.

(c)During August 2020, a recallable distribution of $15.7 million was made by Mervyn’s II to its investors, of which $4.5 million was the Company’s share. During the first half of 2021, Mervyn’s II recalled $3.8 million of the $15.7 million of which the Company's share was $1.1 million.

(d)As of April 8, 2021, Fund V's investment period was extended to August 25, 2022.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Basis of Presentation

Segments

At June 30, 2021, the Company had three reportable operating segments: Core Portfolio, Funds and Structured Financing. The Company’s chief operating decision maker may review operational and financial data on a property-level basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital. 

Principles of Consolidation

The interim consolidated financial statements include the consolidated accounts of the Company and its investments in partnerships and limited liability companies in which the Company has control in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810 “Consolidation” (“ASC Topic 810”). The ownership interests of other investors in these entities are recorded as noncontrolling interests. All significant intercompany balances and transactions have been eliminated in consolidation. Investments in entities for which the Company has the ability to exercise significant influence over, but does not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, the Company’s share of the earnings (or losses) of these entities are included in consolidated net income or loss.

The interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the full fiscal year. The information furnished in the accompanying consolidated financial statements reflects all adjustments that, in the opinion of management, are necessary for a fair presentation of the aforementioned consolidated financial statements for the interim periods. Such adjustments consisted of normal recurring items, with the exception of adjustments due to the adoption of the new credit loss standard and impairment.

These interim consolidated financial statements should be read in conjunction with the Company’s 2020 Annual Report on Form 10-K, as filed with the SEC on February 22, 2021.

Reclassifications

Certain prior year amounts on the Company’s consolidated balance sheet at December 31, 2020 with regard to Mortgage and other notes payable, net and Unsecured notes payable, net have been reclassified to conform to the current period presentation. In addition, certain prior year amounts in the Company’s statement of cash flows for the six months ended June 30, 2020 with regard to Right-of-use assets – operating leases, lease liabilities – operating leases and credit losses have been reclassified to conform to the current period presentation. These reclassifications had no material effect on the reported results of operations, financial condition or cash flows.

Use of Estimates

GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the interim consolidated financial statements and accompanying notes. The most significant assumptions and estimates relate to the valuation of real estate, depreciable lives, revenue recognition and the collectability of notes receivable and rents receivable. Application of these estimates and assumptions requires the exercise of judgment as to future uncertainties and, as a result, actual results could differ from these estimates.

Recently Adopted Accounting and Reporting Guidance

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes. The amendments in this Update provide guidance for interim period and intra period tax accounting; provide tax accounting guidance for foreign subsidiaries; require that an entity recognize a franchise (or similar) tax that is partially based on income as an income-based tax and account for any incremental amount incurred as a non-income-based tax; as well as other changes to tax accounting. This ASU is effective for fiscal years beginning after December 15, 2020. As a REIT, the Company usually does not have significant income taxes. Accordingly, the implementation of this guidance did not have a material effect on the Company’s consolidated financial statements.

During October 2020, the SEC issued new rules modernizing certain Regulation S-K disclosure requirements. The final rule is intended to improve the readability of disclosures, reduce repetition, and eliminate immaterial information, thereby simplifying compliance for registrants and making disclosures more meaningful for investors. These changes were effective for all filings on or after November 7, 2020. The Company has made minor disclosure changes in this Report and to the "Business" and "Risk Factors" sections of the annual report on Form 10-K for 2020.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

On April 8, 2020, the FASB issued a Q&A allowing for reporting entities to make an accounting policy election to account for lease concessions related to the effects of COVID-19 consistent with how those concessions would be accounted for under Topic 842, which is as though the enforceable rights and obligations for those concessions existed regardless of whether those enforceable rights and obligations for the concessions explicitly exist in the contract. This election is available for concessions that result in the total cash flows required by the modified contract being substantially the same or less than total cash flows required by the original contract. Effective April 1, 2020, the Company has made the accounting policy election noted above. The Company entered into concession agreements as lessor during the six months ended June 30, 2021 (Note 11). The Company may grant further concessions during subsequent periods.

In January 2020, the FASB issued ASU 2020-01 Investments—Equity securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions Between Topic 321, Topic 323, and Topic 815. The amendments in this Update affect all entities that apply the guidance in Topics 321, 323, and 815 and (i) elect to apply the measurement alternative or (ii) enter into a forward contract or purchase an option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting. This ASU is effective for fiscal years beginning after December 15, 2020. Currently, the Company does not apply the measurement alternative and does not have any such forward contracts or purchase options. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

In October 2020, the FASB issued ASU 2020-08 Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs. The amendments in this update clarify that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-35-33 for each reporting period. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early application is not permitted. Currently, the Company does not have any such callable debt securities. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In August 2020, the FASB issued ASU 2020-06—Debt with conversion and other options (Subtopic 470-20) and derivatives and hedging—contracts in entity's own equity (Subtopic 815-40)—accounting for convertible instruments and contracts in an entity's own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The ASU simplifies accounting for convertible instruments and simplifies the diluted earnings per share (EPS) calculation in certain areas. This ASU is effective for fiscal years beginning after December 15, 2021. Currently, the Company does not have any such debt instruments and, as a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In January 2021, the FASB issued ASU 2021-01 Reference Rate Reform (Topic 848) which modifies ASC 848, which was intended to provide relief related to “contracts and transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform.” ASU 2021-01 expands the scope of ASC 848 to include all affected derivatives and give reporting entities the ability to apply certain aspects of the contract modification and hedge accounting expedients to derivative contracts affected by the discounting transition. ASU 2021-01 also adds implementation guidance to clarify which optional expedients in ASC 848 may be applied to derivative instruments that do not reference LIBOR or a reference rate that is expected to be discontinued, but that are being modified as a result of the discounting transition. Currently, the Company does not anticipate the need to modify any existing debt agreements as a result of reference rate reform in the current year. If any modification is executed as a result of reference rate reform, the Company will elect the optional practical expedient under ASU 2020-04 and 2021-01, which allows entities to account for the modification as if the modification was not substantial. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In May 2021, the FASB issued ASU 2021-04 Modification of equity-classified written call options — Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options — to codify how an issuer should account for modifications made to equity-classified written call options (a warrant to purchase the issuer’s common stock). The guidance in the ASU requires the issuer to treat a modification of an equity-classified warrant that does not cause the warrant to become liability-classified as an exchange whether structured as an amendment or reissuance and is effective for all periods beginning after December 15, 2021 with early application permitted. The Company does not currently have any outstanding equity awards with written call options. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

2. Real Estate

The Company’s consolidated real estate is comprised of the following for the periods presented (in thousands):

	June 30, 2021			December 31, 2020
Land	$	761,029		$	776,275
Buildings and improvements		2,825,549			2,848,781
Tenant improvements		204,542			191,046
Construction in progress		9,427			5,751
Right-of-use assets - finance leases (Note 11)		25,086			25,086
Total		3,825,633			3,846,939
Less: Accumulated depreciation and amortization		(624,461	)		(586,800	)
Operating real estate, net		3,201,172			3,260,139
Real estate under development		217,620			247,349
Net investments in real estate	$	3,418,792		$	3,507,488

Acquisitions and Conversions

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company acquired the following consolidated retail properties and other real estate investments (dollars in thousands):

Property and Location	Percent Acquired	Date of Acquisition	Purchase Price
2021 Acquisitions
None
2020 Acquisitions and Conversions
Core
Soho Acquisitions - 37 Greene Street - New York, NY	100%	Jan 9, 2020	$	15,689
917 W. Armitage - Chicago, IL	100%	Feb 13, 2020		3,515
Town Center - Wilmington, DE (Conversion) (Note 4)	100%	Apr 1, 2020		138,939
Subtotal Core				158,143
Fund IV
230-240 W. Broughton Street - Savannah, GA	100%	May 26, 2020		13,219
102 E. Broughton Street - Savannah, GA	100%	May 26, 2020		790
Subtotal Fund IV				14,009
Total 2020 Acquisitions and Conversions			$	172,152

For the year ended December 31, 2020, the Company capitalized $1.3 million of acquisition costs. No debt was assumed in any of the 2020 Acquisitions and Conversions. Conversions represent notes receivable that were converted to an interest in the underlying collateral in a non-cash transaction.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Purchase Price Allocations

The purchase prices for the 2020 Acquisitions and Conversions were allocated to the acquired assets and assumed liabilities based on their estimated fair values at the dates of acquisition. The following table summarizes the allocation of the purchase price of properties acquired during the periods presented (in thousands):

	Six Months Ended June 30, 2021		Year Ended December 31, 2020
Net Assets Acquired
Land	$	—	$	25,440
Buildings and improvements		—		123,459
Accounts receivable, prepaids and other assets		—		5,770
Acquisition-related intangible assets (Note 6)		—		23,061
Right-of-use asset - Operating lease (Note 11)		—		234
Acquisition-related intangible liabilities (Note 6)		—		(4,569	)
Lease liability - Operating lease (Note 11)		—		(234	)
Accounts payable and other liabilities		—		(1,009	)
Net assets acquired	$	—	$	172,152
Consideration
Cash	$	—	$	21,208
Conversion of note receivable		—		38,674
Conversion of accrued interest		—		1,995
Liabilities assumed		—		116
Existing interest in previously unconsolidated investment		—		109,571
Acquisition of noncontrolling interests		—		588
Total consideration	$	—	$	172,152

Dispositions

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company disposed of the following consolidated properties and other real estate investments (in thousands):

Property and Location	Owner	Date Sold	Sale Price		Gain on Sale
2021 Dispositions
60 Orange St - Bloomfield, NJ	Core	Jan 29, 2021	$	16,400	$	4,612
654 Broadway - New York, NY	Fund III	May 19, 2021		10,000		111
NE Grocer Portfolio (Selected Assets) - Maine	Fund IV	Jun 18, 2021		39,925		5,064
Total 2021 Dispositions			$	66,325	$	9,787
2020 Dispositions
163 Highland Ave. (Easement) - Needham, MA	Core	Mar 19, 2020	$	238	$	88
Colonie Plaza - Albany, NY	Fund IV	Apr 13, 2020		15,250		485
Airport Mall (Parcel) - Bangor, ME	Fund IV	Sep 10, 2020		400		24
Cortlandt Crossing (Sewer Project and Retention Pond) - Cortlandt, NY	Fund III	Nov 30, 2020		6,325		—
Union Township (Parcel) - New Castle, PA	Core	Dec 11, 2020		200		86
Total 2020 Dispositions			$	22,413	$	683

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

The aggregate rental revenue, expenses and pre-tax income reported within continuing operations for the aforementioned consolidated properties that were sold as well as the lease that was terminated (Note 11) during the six months ended June 30, 2021 and year ended December 31, 2020 were as follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Revenues	$	1,557		$	2,631		$	3,570		$	5,468
Expenses		(1,979	)		(2,513	)		(3,863	)		(5,397	)
Gain on disposition of properties		5,909			485			10,521			485
Net income attributable to noncontrolling interests		(4,218	)		(395	)		(4,320	)		(307	)
Net income attributable to Acadia	$	1,269		$	208		$	5,908		$	249

Real Estate Under Development and Construction in Progress

Real estate under development represents the Company’s consolidated properties that have not yet been placed into service while undergoing substantial development or construction.

Development activity for the Company’s consolidated properties comprised the following during the periods presented (dollars in thousands):

	January 1, 2021				Six Months Ended June 30, 2021						June 30, 2021
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	63,875	$	—	$	1,222	$	23,213		—	$	41,884
Fund II		—		74,657		—		984		—		—		75,641
Fund III		1		23,139		—		546		—		1		23,685
Fund IV		2		85,678		—		2,094		11,362		1		76,410
Total		3	$	247,349	$	—	$	4,846	$	34,575		2	$	217,620

	January 1, 2020				Year Ended December 31, 2020						December 31, 2020
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	60,863	$	—	$	3,012	$	—		—	$	63,875
Fund II (a)		—		10,703		66,812		3,612		6,470		—		74,657
Fund III		1		36,240		—		70		13,171		1		23,139
Fund IV (b)		2		145,596		—		1,368		61,286		2		85,678
Total		3	$	253,402	$	66,812	$	8,062	$	80,927		3	$	247,349

a)Transfers in include $33.8 million of non-cash Fund II additions obtained through the conversion of a note receivable (Note 3).

b)Transfers out include impairment charges totaling $16.5 million on two Fund IV development properties (Note 8).

The number of properties in the tables above refers to projects comprising the entire property under development; however, certain projects represent a portion of a property. Core amounts relate to City Center and Fund II amounts relate to the City Point Phase III project.

During the six months ended June 30, 2021, the Company:

placed portions of one Core project, City Center, into service in the first and second quarter of 2021

placed the remainder of one Fund IV project, Paramus, into service in the first quarter of 2021

disposed of building improvements related to one Fund IV project, 110 University Place, in connection with a lease termination in the second quarter of 2021 (Note 11)

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

During the year ended December 31, 2020, the Company:

placed a portion of one Fund III property, Cortlandt Crossing, into service in the first quarter of 2020

converted, in a non-cash transaction, a note receivable in exchange for construction improvements in the amount of $33.8 million in the fourth quarter of 2020 (Note 3)

recognized impairment charges totaling $16.5 million on two Fund IV properties (Note 8) including 717 N. Michigan Avenue and 110 University Place in the fourth quarter of 2020

placed a portion of one Fund IV property, 146 Geary Street, which was also impaired, into service in the first quarter of 2020 (Note 8)

placed a portion of Fund II’s City Point Phase II into development in the second quarter of 2020

suspended certain development projects due to aforementioned disruptions related to the COVID-19 Pandemic. Substantially all remaining development and redevelopment costs are discretionary and dependent upon the resumption of tenant interest.

Construction in progress pertains to construction activity at the Company’s operating properties that are in service and continue to operate during the construction period.

3. Notes Receivable, Net

The Company’s notes receivable, net are generally collateralized either by the underlying properties or the borrowers’ ownership interests in the entities that own the properties, and were as follows (dollars in thousands):

	June 30,			December 31,			June 30, 2021
Description	2021			2020			Number		Maturity Date	Interest Rate
Core Portfolio (a)	$	112,794		$	96,794			7	Apr 2020 - Dec 2027	4.65% - 9.00%
Fund III		5,306			5,306			1	Jul 2020	18.00%
Total notes receivable		118,100			102,100
Allowance for credit loss		(820	)		(650	)
Notes receivable, net	$	117,280		$	101,450			8

a)Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020.

During the six months ended June 30, 2021, the Company:

issued a new Core Portfolio note for $16.0 million with a stated interest rate of 9% and a maturity date of October 20, 2022 collateralized by a single tenant property in Silver Spring, Maryland on April 20, 2021;

recorded an increase in its allowance for credit loss of approximately $0.2 million primarily attributable to the new loan discussed above.

During the year ended December 31, 2020, the Company:

exchanged its Brandywine Note Receivable of $38.7 million plus accrued interest of $2.0 million for the remaining 24.78% undivided interest in Town Center on April 1, 2020;

recorded credit loss reserves of $0.4 million upon the adoption of ASC 326;

converted $33.8 million balance of a Fund II note receivable for interest in real estate on November 2, 2020. Prior to the exchange, the note had been increased by the interest accrued during 2020 of $0.6 million;

made a Core loan for $54.0 million with an interest rate of 9% structured as a redeemable preferred equity investment in a property at 850 Third Avenue in Brooklyn, New York on January 14, 2020;

issued a new Core Portfolio note for $5.0 million with an interest rate of 8% collateralized by our partner’s 50% share of the LUF (Georgetown) Portfolio (Note 4) in Washington, D.C. effective February 1, 2020; and

recorded additional credit loss reserves of $0.3 million related to new transactions and recent market volatility.

One Core Portfolio note aggregating $21.6 million including accrued interest (exclusive of default interest and other amounts due on the loan that have not been recognized) was in default at June 30, 2021 and December 31, 2020. On April 1, 2020, the loan matured and was not repaid. The Company expects to take appropriate actions to recover the amounts due under the loan, and has issued a reservation of rights letter to the borrowers and guarantor, reserving all of its rights and remedies under the applicable loan documents and otherwise. In addition, one Fund III note receivable aggregating $10.0 million, including accrued interest (exclusive of default interest and other amounts due on the loan that have

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

not been recognized) matured on July 1, 2020 and was not repaid. The Company has issued the borrower a notice of maturity default. The Company has determined for each of these loans that the collateral is sufficient to cover the loan’s carrying value at June 30, 2021. In addition, there are certain personal guarantees associated with each of these notes receivable.

The Company monitors the credit quality of its notes receivable on an ongoing basis and considers indicators of credit quality such as loan payment activity, the estimated fair value of the underlying collateral, the seniority of the Company’s loan in relation to other debt secured by the collateral and the prospects of the borrower.

Earnings from these notes and mortgages receivable are reported within the Company’s Structured Financing segment (Note 12).

The Company’s estimated allowance for credit losses related to its Structured Financing segment has been computed for its amortized cost basis in the portfolio, including accrued interest (Note 5), factoring historical loss experience in the United States for similar loans, as adjusted for current conditions, as well as the Company’s expectations related to future economic conditions. Due to the lack of comparability across the Structured Financing portfolio, each loan was evaluated separately. As a result, for non-collateral-dependent loans with a total amortized cost of $97.0 million, inclusive of accrued interest of $8.5 million, an allowance for credit losses has been recorded aggregating $0.8 million at June 30, 2021. For four loans in this portfolio, aggregating $38.4 million, inclusive of accrued interest of $8.8 million at June 30, 2021, the Company has elected to apply a practical expedient in accordance with ASC 326 and did not establish an allowance for credit losses because (i) these loans are collateral-dependent loans, which due to their settlement terms are not expected to be settled in cash but rather by the Company’s possession of the real estate collateral; and (ii) at June 30, 2021, the Company determined that the estimated fair value of the collateral at the expected realization date for these loans was sufficient to cover the carrying value of its investments in these notes receivable. Impairment charges may be required if and when such amounts are estimated to be nonrecoverable upon a realization event, which is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold; however, non-recoverability may also be concluded if it is reasonably certain that all amounts due will not be collected.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

4. Investments in and Advances to Unconsolidated Affiliates

The Company accounts for its investments in and advances to unconsolidated affiliates primarily under the equity method of accounting as it has the ability to exercise significant influence, but does not have financial or operating control over the investment, which is maintained by each of the unaffiliated partners who co-invest with the Company. The Company’s investments in and advances to unconsolidated affiliates consist of the following (dollars in thousands):

		Ownership Interest	June 30,		December 31,
Portfolio	Property	June 30, 2021	2021		2020
Core:	840 N. Michigan (a)	88.43%	$	53,869	$	55,863
	Renaissance Portfolio	20%		28,835		29,270
	Gotham Plaza	49%		28,796		28,683
	Georgetown Portfolio	50%		3,796		4,624
	1238 Wisconsin Avenue	80%		3,352		2,571
				118,648		121,011
Mervyns I & II:	KLA/ABS (b)	36.7%		80,956		72,391
Fund III:	Self Storage Management (c)	95%		207		207
Fund IV:	Fund IV Other Portfolio	98.57%		12,327		11,719
	650 Bald Hill Road	90%		11,714		12,550
				24,041		24,269
Fund V:	Family Center at Riverdale (a)	89.42%		12,927		11,824
	Tri-City Plaza	90%		6,904		7,024
	Frederick County Acquisitions	90%		10,895		10,837
				30,726		29,685
Various:	Due from (to) Related Parties			467		363
	Other (d)			3,018		1,881
	Investments in and advances to unconsolidated affiliates		$	258,063	$	249,807
Core:	Crossroads (e)	49%	$	14,896	$	15,616
	Distributions in excess of income from, and investments in, unconsolidated affiliates		$	14,896	$	15,616

a)Represents a tenancy-in-common interest.

b)Includes an interest in Albertsons (at fair value, as described below) (Note 8).

c)Represents a variable interest entity for which the Company was determined not to be the primary beneficiary.

d)Includes cost-method investments in Storage Post, Fifth Wall and other investments.

e)Distributions have exceeded the Company’s investment; however, the Company recognizes a liability balance as it may be required to return distributions to fund future obligations of the entity.

During the six months ended June 30, 2021, the Company:

monetized $0.8 million at Mervyns II related to distributions from its Investment in Albertsons and recorded a net unrealized holding gain of $8.6 million reflecting the change in fair value of its Investment in Albertsons

on January 4, 2021, Fund V sold two land parcels at its unconsolidated Family Center at Riverdale property for a total of $10.5 million, repaid $7.9 million of the related mortgage and the venture recognized a gain of $3.2 million, of which the Company's share was $0.6 million; and

increased its investment in Fifth Wall by $1.1 million pursuant to its subscription agreement.

During the year ended December 31, 2020, the Company:

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

exchanged the remaining $38.7 million of Brandywine Notes Receivable (Note 3), plus accrued interest of $2.0 million for the remaining 24.78% interest in Town Center on April 1, 2020, thereby obtaining a 100% controlling interest in the property. The property was then consolidated (Note 2) and the Company recorded the remaining interest in the property investment at the carrying value of the notes;

increased its investment in Fifth Wall by $0.4 million pursuant to its subscription agreement;

impaired $0.4 million of its investment in Fifth Wall (Note 8) during the fourth quarter of 2020, reflecting management’s estimate of fair value at that date;

recorded realized gains at Mervyns II of approximately $22.8 million and $0.4 million, during the second and fourth quarters of 2020, respectively, from its Investment in Albertsons. The realized gains during the second quarter of 2020 resulted from the issuance and distribution of proceeds from a preferred equity investment and a sale of a portion of its investment in an initial public offering of Albertsons, both of which occurred in June 2020;

recorded an unrealized gain of approximately $64.9 million during the second quarter of 2020 at Mervyns II reflecting the initial market value of its ownership of approximately 4.1 million shares (approximately 1% interest) through its Investment in Albertsons, which it has accounted for at fair value following the initial public offering;

recorded an additional net unrealized holding gain of $7.5 million at Mervyns II reflecting the change in fair value of its Investment in Albertsons from the initial public offering through December 31, 2020; and

acquired all of the third-party equity of BSP II at Fund IV, which underlies two properties within Broughton Street Portfolio, for $1.3 million on May 26, 2020, pursuant to the buy-sell provisions of the operating agreement of the Broughton Street Portfolio. These two BSP II properties were consolidated during the second quarter of 2020.

Fees from Unconsolidated Affiliates

The Company earned property management, construction, development, legal and leasing fees from its investments in unconsolidated partnerships totaling $0.1 million for each of the three months ended June 30, 2021 and 2020, and $0.2 million for each of the six months ended June 30, 2021 and 2020, which are included in other revenues in the consolidated statements of income.

In addition, the Company's joint ventures paid to certain unaffiliated partners of its joint ventures, $0.3 million and $0.4 million for the three months ended June 30, 2021 and 2020, respectively, and $0.7 million and $1.4 million for the six months ended June 30, 2021 and 2020, respectively, for leasing commissions, development, management, construction and overhead fees.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Summarized Financial Information of Unconsolidated Affiliates

The following combined and condensed Balance Sheets and Statements of operations, in each period, summarize the financial information of the Company’s investments in unconsolidated affiliates that were held as of June 30, 2021, and accordingly exclude the results of any investments disposed of or consolidated prior to that date (in thousands):

	June 30, 2021		December 31, 2020
Combined and Condensed Balance Sheets
Assets:
Rental property, net	$	556,800	$	563,997
Real estate under development		12,900		14,517
Other assets		63,060		61,969
Total assets	$	632,760	$	640,483
Liabilities and partners’ equity:
Mortgage notes payable	$	507,111	$	512,490
Other liabilities		72,577		74,872
Partners’ equity		53,072		53,121
Total liabilities and partners’ equity	$	632,760	$	640,483
Company's share of accumulated equity	$	100,237	$	100,767
Basis differential		54,320		55,017
Deferred fees, net of portion related to the Company's interest		3,962		3,565
Amounts receivable/payable by the Company		467		363
Investments in and advances to unconsolidated affiliates, net of Company's    share of distributions in excess of income from and investments in    unconsolidated affiliates		158,986		159,712
Investments carried at fair value or cost		84,181		74,479
Company's share of distributions in excess of income from and    investments in unconsolidated affiliates		14,896		15,616
Investments in and advances to unconsolidated affiliates	$	258,063	$	249,807

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Combined and Condensed Statements of Operations
Total revenues	$	19,541		$	16,372		$	36,822		$	36,714
Operating and other expenses		(6,814	)		(6,183	)		(13,033	)		(13,607	)
Interest expense		(4,581	)		(5,014	)		(9,403	)		(10,270	)
Depreciation and amortization		(5,676	)		(6,524	)		(14,477	)		(12,885	)
Gain on disposition of properties (a)		—			—			3,206			—
Net income (loss) attributable to unconsolidated affiliates	$	2,470		$	(1,349	)	$	3,115		$	(48	)
Company’s share of equity in net income (loss) of unconsolidated affiliates	$	1,368		$	(510	)	$	4,066		$	(174	)
Income attributable to unconsolidated affiliates recently sold or consolidated		—			46			—			1,291
Basis differential amortization		(262	)		(322	)		(697	)		(648	)
Company’s equity in earnings (losses) of unconsolidated affiliates	$	1,106		$	(786	)	$	3,369		$	469

a)Represents the gain on the sale of two land parcels by the Family Center at Riverdale on January 4, 2021. 

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

5. Other Assets, Net and Accounts Payable and Other Liabilities

Other assets, net and accounts payable and other liabilities are comprised of the following for the periods presented:

(in thousands)	June 30, 2021			December 31, 2020
Other Assets, Net:
Lease intangibles, net (Note 6)	$	83,722		$	100,732
Deferred charges, net (a)		31,850			30,488
Accrued interest receivable		17,263			13,917
Prepaid expenses		15,507			17,468
Due from seller		3,364			3,682
Income taxes receivable		2,015			2,433
Other receivables		1,904			2,058
Deposits		2,709			1,728
Corporate assets, net		1,257			1,302
Derivative financial instruments (Note 8)		1			1
	$	159,592		$	173,809
(a) Deferred Charges, Net:
Deferred leasing and other costs	$	59,377		$	57,533
Deferred financing costs related to line of credit		9,757			11,341
		69,134			68,874
Accumulated amortization		(37,284	)		(38,386	)
Deferred charges, net	$	31,850		$	30,488
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	$	66,982		$	76,434
Accounts payable and accrued expenses		57,582			53,031
Derivative financial instruments (Note 8)		60,979			90,139
Deferred income		34,928			31,842
Tenant security deposits, escrow and other		12,106			12,178
Lease liability - finance leases, net (Note 11)		6,479			6,287
	$	239,056		$	269,911

6. Lease Intangibles

Upon acquisitions of real estate (Note 2), the Company assesses the fair value of acquired assets (including land, buildings and improvements, and identified intangibles such as above- and below-market leases, including below-market options and acquired in-place leases) and assumed liabilities. The lease intangibles are amortized over the remaining terms of the respective leases, including option periods where applicable.

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ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Intangible assets and liabilities are included in Other assets, net and Accounts payable and other liabilities (Note 5) on the consolidated balance sheet and summarized as follows (in thousands):

	June 30, 2021									December 31, 2020
	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Amortizable Intangible Assets
In-place lease intangible assets	$	259,391		$	(179,197	)	$	80,194		$	268,335		$	(171,856	)	$	96,479
Above-market rent		19,115			(15,587	)		3,528			19,188			(14,935	)		4,253
	$	278,506		$	(194,784	)	$	83,722		$	287,523		$	(186,791	)	$	100,732
Amortizable Intangible Liabilities
Below-market rent	$	(157,590	)	$	91,041		$	(66,549	)	$	(164,923	)	$	88,951		$	(75,972	)
Above-market ground lease		(671	)		238			(433	)		(671	)		209			(462	)
	$	(158,261	)	$	91,279		$	(66,982	)	$	(165,594	)	$	89,160		$	(76,434	)

During the six months ended June 30, 2021, the Company did not acquire or assume any intangible assets or liabilities. During the six months ended June 30, 2021, the Company wrote-off in-place lease intangible assets of $8.8 million and below-market rent of $6.5 million related to disposed properties (Note 2).

During the year ended December 31, 2020, the Company acquired in-place lease intangible assets of $21.0 million, above-market rents of $2.0 million, and below-market rents of $4.6 million with weighted-average useful lives of 4.9, 5.8, and 20.2 years, respectively.

Amortization of in-place lease intangible assets is recorded in depreciation and amortization expense and amortization of above-market rent and below-market rent is recorded as a reduction to and increase to rental income, respectively, in the consolidated statements of income. Amortization of above-market ground leases are recorded as a reduction to rent expense in the consolidated statements of income.

The scheduled amortization of acquired lease intangible assets and assumed liabilities as of June 30, 2021 is as follows (in thousands):

Years Ending December 31,	Net Increase in Lease Revenues		Increase to Amortization			Reduction of Rent Expense		Net (Expense) Income
2021 (Remainder)	$	3,205	$	(11,153	)	$	29	$	(7,919	)
2022		5,929		(17,741	)		58		(11,754	)
2023		5,460		(13,134	)		58		(7,616	)
2024		5,106		(9,262	)		58		(4,098	)
2025		4,435		(6,914	)		58		(2,421	)
Thereafter		38,886		(21,990	)		172		17,068
Total	$	63,021	$	(80,194	)	$	433	$	(16,740	)

23

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

7. Debt

A summary of the Company’s consolidated indebtedness is as follows (dollars in thousands):

	Interest Rate at			Carrying Value at
	June 30,	December 31,	Maturity Date at	June 30,	December 31,
	2021	2020	June 30, 2021	2021	2020
Mortgages Payable
Core Fixed Rate	3.88%-5.89%	3.88%-5.89%	Feb 2024 - Apr 2035	$146,642	$147,810
Core Variable Rate - Swapped (a)	3.41%-4.54%	3.41%-4.54%	Jan 2023 - Nov 2028	73,367	80,500
Total Core Mortgages Payable				220,009	228,310
Fund II Variable Rate	LIBOR+3.00% - PRIME+2.00%	LIBOR+3.00% - PRIME+2.00%	Mar 2022 - August 2022	234,110	228,282
Fund II Variable Rate - Swapped (a)	2.88%	2.88%	Nov 2021	18,661	18,803
Total Fund II Mortgages Payable				252,771	247,085
Fund III Variable Rate	LIBOR+2.75%-LIBOR+3.10%	LIBOR+2.75%-LIBOR+3.10%	Jun 2022 - Jul 2022	71,308	71,918
Fund IV Fixed Rate	4.50%	3.40%-4.50%	Oct 2025	1,120	6,726
Fund IV Variable Rate	LIBOR+1.60%-LIBOR+3.40%	LIBOR+1.60%-LIBOR+3.40%	Jul 2021 - Oct 2025	244,087	254,234
Fund IV Variable Rate - Swapped (a)	3.48%-4.61%	3.48%-4.61%	Apr 2022 - Dec 2022	42,549	66,590
Total Fund IV Mortgages and Other Notes Payable				287,756	327,550
Fund V Variable Rate	LIBOR+1.50%-LIBOR+2.20%	LIBOR+1.50%-LIBOR+2.20%	Jul 2021 - Dec 2024	30,261	1,354
Fund V Variable Rate - Swapped (a)	2.43%-4.78%	2.95%-4.78%	Jul 2021 - Dec 2024	304,843	334,323
Total Fund V Mortgages Payable				335,104	335,677
Net unamortized debt issuance costs				(4,828)	(6,507)
Unamortized premium				497	548
Total Mortgages Payable				$1,162,617	$1,204,581
Unsecured Notes Payable
Core Variable Rate Credit Facility		LIBOR+2.55%		$—	$30,000
Core Variable Rate Unsecured    Term Loans - Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2026	400,000	350,000
Total Core Unsecured Notes    Payable				400,000	380,000
Fund II Unsecured Notes Payable	LIBOR+1.65%	LIBOR+1.65%	Sep 2021	40,000	40,000
Fund IV Term Loan/Subscription Facility	LIBOR+1.90%	LIBOR+1.90%	Dec 2021	—	864
Fund V Subscription Facility	LIBOR+1.90%	LIBOR+1.60%	May 2022	4,604	250
Net unamortized debt issuance costs				(4,516)	(256)
Total Unsecured Notes Payable				$440,088	$420,858
Unsecured Line of Credit
Core Unsecured Line of Credit -Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2025	$61,405	$138,400
Total Debt - Fixed Rate (b, c )				$1,053,715	$1,143,152
Total Debt - Variable Rate (d)				619,242	626,902
Total Debt				1,672,957	1,770,054
Net unamortized debt issuance costs				(9,344)	(6,763)
Unamortized premium				497	548
Total Indebtedness				$1,664,110	$1,763,839

a)At June 30, 2021, the stated rates ranged from LIBOR + 1.50% to LIBOR +1.90% for Core variable-rate debt; LIBOR + 1.39% for Fund II variable-rate debt; LIBOR + 2.75% to LIBOR + 3.10% for Fund III variable-rate debt; LIBOR + 1.75% to LIBOR +2.00% for Fund IV variable-rate debt; LIBOR + 1.50% to LIBOR + 2.20% for Fund V variable-rate debt; LIBOR + 1.55% for Core variable-rate unsecured term loans; and LIBOR + 1.40% for Core variable-rate unsecured lines of credit.

b)Includes $900.8 million and $988.6 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented.

c)Fixed-rate debt at June 30, 2021 and December 31, 2020 includes $5.1 million and $3.2 million, respectively of Core swaps that may be used to hedge debt instruments of the Funds.

d)Includes $145.0 million and $139.2 million, respectively, of variable-rate debt that is subject to interest cap agreements.

24

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Credit Facility

Since February 2018 and as subsequently amended, the Company has had a senior unsecured credit facility (the “Credit Facility”) comprised of a $250.0 million senior unsecured revolving credit facility (the “Revolver”) which bore interest at LIBOR + 1.40%, and a $350.0 million senior unsecured term loan (the “Term Loan”) which bore interest at LIBOR + 1.30%. The revolving credit facility was scheduled to mature on March 31, 2022, subject to two six-month extension options, and the $350.0 million Term Loan was scheduled to expire on March 31, 2023.

During June 2021, the Company modified the Credit Facility, providing for a $50.0 million increase in the Revolver and a $50.0 million increase in the term loan. This amendment resulted in borrowing capacity of up to $700.0 million in principal amount, which includes a $300.0 million revolving credit facility maturing on June 29, 2025, subject to two six-month extension options, and a $400.0 million Term Loan expiring on June 29, 2026. In addition, the amendment provides for revisions to the accordion feature, which allows for one or more increases in the revolving credit facility or term loan facility, for a maximum aggregate principal amount not to exceed $900.0 million. The $300.0 million Revolver bears interest at LIBOR + 1.40% and the $400.0 million Term Loan bears interest at LIBOR + 1.55% at June 30, 2021, all of which were swapped to fixed rates. In connection with the amendment to the credit facility, during the second quarter of 2021, the Company (i) capitalized $2.7 million of debt issuance costs associated with the amended Revolver, which are included in deferred financing costs within other assets (Note 5); (ii) capitalized $3.1 million associated with the amended Term Loan, which are included in net unamortized debt issuance costs in the table above; and (iii) expensed $0.1 million of third-party costs associated with the Term Loan.

Mortgages and Other Notes Payable

During the six months ended June 30, 2021, the Company:

extended seven mortgages, five of which were extended for one year with aggregate outstanding balances of $125.3 million at June 30, 2021, one of which was extended for 18 months with an outstanding balance of $25.9 million at June 30, 2021, and one of which was extended for six months with an outstanding balance of $12.0 million at June 30, 2021;

modified the terms of the Fund IV Bridge facility during the second quarter which had an outstanding balance of $79.2 million prior to modification. Fund IV repaid $10.0 million of principal, the maturity date was extended from June 30, 2021 to December 31, 2021, and the interest rate was changed from LIBOR plus 2.0% to LIBOR plus 2.5% with a floor of 0.25%;

modified certain terms of the Fund V subscription line during the first quarter which had an outstanding balance of $4.6 million prior to modification. The maturity date was extended to May 2, 2022 and the interest rate was increased from LIBOR plus 1.60% to LIBOR plus 1.90%;

entered into a swap agreement during the first quarter with a notional value of $16.7 million, for its New Towne Plaza mortgage replacing the existing swap which expired. In addition, the Company terminated two forward-starting interest rate swaps resulting in cash proceeds of approximately $3.4 million (Note 8);

repaid one Core mortgage of $6.7 million in connection with the sale of 60 Orange Street the first quarter and four Fund mortgages in the aggregate amount of $23.5 million in connection with the sale of the properties during the second quarter (Note 2); and

made scheduled principal payments of $4.0 million.

During the year ended December 31, 2020, the Company:

extended the maturity date of a $200.0 million Fund II loan from May 2020 to May 2022. In addition, the Company extended seven Fund mortgages, two of which were extended for one year during the first quarter with aggregate outstanding balances of $46.0 million at December 31, 2020, two of which were extended for one year during the second quarter with an aggregate outstanding balance of $51.3 million at December 31, 2020, one of which was extended for one year during the third quarter with aggregate outstanding balances of $40.0 million at December 31, 2020, and two of which were extended for a minimum of one year during the fourth quarter with aggregate outstanding balances of $88.0 million at December 31, 2020;

modified the terms of one Fund IV $23.8 million mortgage, which had $18.9 million outstanding, in June 2020 to adjust the allowable timing of draws. At closing, an additional $1.0 million was drawn and in July 2020 an additional $0.9 million was drawn. The Company also modified one Fund III and two Fund IV loans aggregating $103.4 million requiring the repayment of $11.5 million; 

entered into two swap agreements in February 2020 each with notional values of $50.0 million, which are not effective until April 2022 and April 2023 and were later terminated in the first quarter of 2021. In July 2020, two previously-executed forward swap agreements took effect with current notional values as of December 31, 2020 of $30.4 million each (Note 8);

repaid one Core mortgage of $26.3 million in connection with the litigation settlement discussed below and one Fund IV mortgage of $11.6 million in connection with the sale of Colonie Plaza in April 2020 (Note 2); and

made scheduled principal payments of $6.1 million.

25

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

At June 30, 2021 and December 31, 2020, the Company’s mortgages were collateralized by 37 and 42 properties, respectively, and the related tenant leases. Certain loans are cross-collateralized and contain cross-default provisions. The loan agreements contain customary representations, covenants and events of default. Certain loan agreements require the Company to comply with affirmative and negative covenants, including the maintenance of debt service coverage and leverage ratios. The Company was not in default on any of its loan agreements at June 30, 2021. A portion of the Company’s variable-rate mortgage debt has been effectively fixed through certain cash flow hedge transactions (Note 8).

A mortgage loan collateralized by the property held by Brandywine Holdings in the Core Portfolio, was in default and subject to litigation at December 31, 2019. The loan was originated in June 2006 and had an original principal amount of $26.3 million and a scheduled maturity of July 1, 2016. By maturity, the loan was in default. On October 30, 2020, the Company settled the litigation for approximately $30.0 million resulting in a gain on debt extinguishment of $18.3 million reflected in Realized and unrealized holding gains on investments and other in the consolidated statement of income during the fourth quarter of 2020, of which the Company’s proportionate share was $4.1 million. Upon settlement of this litigation, the Company obtained its partner’s 77.78% noncontrolling interest for nominal consideration, resulting in an adjustment of $15.9 million as a reduction to equity.

Unsecured Notes Payable

Unsecured notes payable for which total availability was $124.6 million and $128.7 million at June 30, 2021 and December 31, 2020, respectively, are comprised of the following:

The outstanding balance of the Core term loan was $400.0 million and $350.0 million at June 30, 2021 and December 31, 2020, respectively. The Company previously entered into swap agreements fixing the rates of the Core term loan balance.

On July 1, 2020, the Company obtained a $30.0 million Core term loan, with an accordion option to increase up to $90.0 million. This term loan was scheduled to mature on June 30, 2021 and bore interest at LIBOR plus 2.55% with a LIBOR floor of 0.75%. The term loan was repaid during June 2021. The outstanding balance at June 30, 2021 and December 31, 2020 was $0 and $30.0 million, respectively.

Fund II has a $40.0 million term loan secured by the real estate assets of City Point Phase II and guaranteed by the Operating Partnership. The outstanding balance of the Fund II term loan was $40.0 million at each of June 30, 2021 and December 31, 2020. There was no availability at each of June 30, 2021 and December 31, 2020.

Fund IV has a $5.0 million subscription line with an outstanding balance and total available credit of $0.0 million and $1.4, respectively at June 30, 2021, reflecting letters of credit of $3.6 million. The outstanding balance and total availability at December 31, 2020 were $0.9 million and $0.5 million, respectively, reflecting letters of credit of $3.6 million.

Fund V has a $150.0 million subscription line collateralized by Fund V’s unfunded capital commitments, and, to the extent of Acadia’s capital commitments, is guaranteed by the Operating Partnership. During the year ended December 31, 2020, the Company modified the $150.0 million Fund V Subscription line and extended the due date from May 2020 to May 2021. In April 2021, the Company modified the subscription line, extending the maturity to May 2022. The outstanding balance and total available credit of the Fund V subscription line was $4.6 and $123.2 million, respectively at June 30, 2021 reflecting outstanding letters of credit of $22.2 million. The outstanding balance and total available credit were $0.3 million and $128.2 million at December 31, 2020, respectively, reflecting outstanding letters of credit of $21.5 million.

Unsecured Revolving Line of Credit

At June 30, 2021 and December 31, 2020, the Company had a total of $230.6 million and $101.1 million available under its Core Revolver, reflecting borrowings of $61.4 million and $138.4 million and letters of credit of $8.0 million and $10.5 million, respectively. At each of June 30, 2021 and December 31, 2020, all of the Core unsecured revolving line of credit was swapped to a fixed rate.

26

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Scheduled Debt Principal Payments

The scheduled principal repayments, without regard to available extension options (described further below), of the Company’s consolidated indebtedness, as of June 30, 2021 are as follows (in thousands):

Year Ending December 31,
2021 (Remainder)	$	212,969
2022		529,299
2023		59,361
2024		212,020
2025		126,732
Thereafter		532,576
		1,672,957
Unamortized premium		497
Net unamortized debt issuance costs		(9,344	)
Total indebtedness	$	1,664,110

The table above does not reflect available extension options (subject to customary conditions) on consolidated debt with balances as of June 30, 2021 of $172.4 million contractually due in 2021, $179.4 million contractually due in 2022, and $41.5 million contractually due in 2023; most for which the Company has available options to extend by up to 12 months and for some an additional 12 months thereafter. However, there can be no assurance that the Company will be able to successfully execute any or all of its available extension options.

See Note 4 for information about liabilities of the Company’s unconsolidated affiliates.

8. Financial Instruments and Fair Value Measurements

The fair value of an asset is defined as the exit price, which is the amount that would either be received when an asset is sold or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The guidance establishes a three-tier fair value hierarchy based on the inputs used in measuring fair value. These tiers are: Level 1, for which quoted market prices for identical instruments are available in active markets, such as money market funds, equity securities, and U.S. Treasury securities; Level 2, for which there are inputs other than quoted prices included within Level 1 that are observable for the instrument, such as certain derivative instruments including interest rate caps and interest rate swaps; and Level 3, for financial instruments or other assets/liabilities that do not fall into Level 1 or Level 2 and for which little or no market data exists, therefore requiring the Company to develop its own assumptions.

Items Measured at Fair Value on a Recurring Basis

The methods and assumptions described below were used to estimate the fair value of each class of financial instrument. For significant Level 3 items, the Company has also provided the unobservable inputs along with their weighted-average ranges.

Money Market Funds — The Company has money market funds, which at times have zero balances and are included in Cash and cash equivalents in the consolidated balance sheets, and are comprised of government securities and/or U.S. Treasury bills. These funds were classified as Level 1 as we used quoted prices from active markets to determine their fair values.

Equity Investments –Albertsons became publicly traded during 2020 (Note 4). Upon Albertsons’ IPO, the Company’s Investment in Albertsons has a readily determinable market value (traded on an exchange) and is being accounted for as a Level 1 investment.

Derivative Assets — The Company has derivative assets, which are included in Other assets, net on the consolidated balance sheets, and are comprised of interest rate swaps and caps. The derivative instruments were measured at fair value using readily observable market inputs, such as quotations on interest rates, and were classified as Level 2 as these instruments are custom, over-the-counter contracts with various bank counterparties that are not traded in an active market. See “Derivative Financial Instruments,” below.

Derivative Liabilities — The Company has derivative liabilities, which are included in Accounts payable and other liabilities on the consolidated balance sheets, and are comprised of interest rate swaps. These derivative instruments were measured at fair value using readily observable market inputs, such as quotations on interest rates, and were classified as Level 2 because they are custom, over-the-counter contracts with various bank counterparties that are not traded in an active market. See “Derivative Financial Instruments,” below.

27

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Other than the Investment in Albertsons described above, the Company did not have any transfers into or out of Level 1, Level 2, and Level 3 measurements during the six months ended June 30, 2021 or 2020.

The following table presents the Company’s fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (in thousands):

	June 30, 2021						December 31, 2020
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets
Money market funds	$	—	$	—	$	—	$	—	$	—	$	—
Derivative financial instruments		—		1		—		—		1		—
Investment in Albertsons (Note 4)		80,956		—		—		72,391		—		—
Liabilities
Derivative financial instruments		—		60,979		—		—		90,139		—

In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.

28

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Items Measured at Fair Value on a Nonrecurring Basis (Including Impairment Charges)

During 2020, the Company was impacted by the COVID-19 Pandemic (Note 11), which caused the Company to reduce its holding periods and forecasted operating income at certain properties. As a result, several impairments were recorded. Impairment charges for the periods presented are as follows (in thousands):

					Impairment Charge
Property and Location	Owner	Triggering Event	Level 3 Inputs	Effective Date	Total		Acadia's Share
2021 Impairment Charges
None
2020 Impairment Charges
Cortlandt Crossing, Mohegan Lake, NY	Fund III	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020	$	27,402	$	6,726
654 Broadway, New York, NY	Fund III	Reduced holding period	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,398		1,570
146 Geary Street, San Francisco, CA	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,718		1,553
801 Madison Avenue, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		11,031		2,551
717 N. Michigan Avenue, Chicago, IL	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		17,392		4,021
110 University, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		16,238		3,754
Fifth Wall Investment	Core	Decline in fair value	Projections of: reported fair value of net assets	Dec 31, 2020		419		419
Total 2020 Impairment Charges					$	85,598	$	20,594

29

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Derivative Financial Instruments

The Company had the following interest rate swaps and caps for the periods presented (dollars in thousands):

					Strike Rate								Fair Value
Derivative Instrument	Aggregate Notional Amount		Effective Date	Maturity Date	Low				High			Balance Sheet Location	June 30, 2021			December 31, 2020
Core
Interest Rate Swaps	$	539,898	Dec 2012-Jul 2020	Mar 2022-Jul 2030		1.71	%	—		3.77	%	Other Liabilities	$	(51,255	)	$	(74,990	)
	$	539,898											$	(51,255	)	$	(74,990	)
Fund II
Interest Rate Swap	$	18,661	Oct 2014	Nov 2021		2.88	%	—		2.88	%	Other Liabilities	$	(89	)	$	(219	)
Interest Rate Cap		45,000	Mar 2019	Mar 2022		3.50	%	—		3.50	%	Other Assets		—			—
	$	63,661											$	(89	)	$	(219	)
Fund III
Interest Rate Caps	$	35,970	Jan 2021	Jul 2022		3.00	%	—		3.00	%	Other Assets	$	—		$	—
Fund IV
Interest Rate Swaps	$	42,549	Mar 2017 - Dec 2019	Apr 2022 - Dec 2022		1.48	%	—		4.00	%	Other Liabilities	$	(721	)	$	(1,713	)
Interest Rate Caps		77,400	July 2019 - Dec 2020	Jul 2021 - Dec 2022		3.00	%	—		3.50	%	Other Assets		1			1
	$	119,949											$	(720	)	$	(1,712	)
Fund V
Interest Rate Swaps	$	304,843	Jun 2018-Feb 2021	Feb 2022-Oct 2024		0.23	%	—		2.88	%	Other Liabilities	$	(8,914	)	$	(13,217	)
	$	304,843											$	(8,914	)	$	(13,217	)
Total asset derivatives													$	1		$	1
Total liability derivatives													$	(60,979	)	$	(90,139	)

All of the Company’s derivative instruments have been designated as cash flow hedges and hedge the future cash outflows on variable-rate debt (Note 7). It is estimated that approximately $19.2 million included in Accumulated other comprehensive loss related to derivatives will be reclassified to interest expense within the next twelve months. As of June 30, 2021 and December 31, 2020, no derivatives were designated as fair value hedges or hedges of net investments in foreign operations. Additionally, the Company does not use derivatives for trading or speculative purposes and currently does not have any derivatives that are not designated hedges.

During the first quarter of 2021, the Company terminated two forward swaps with an aggregate notional value of $100.0 million (Note 7) for cash proceeds of $3.4 million. As the hedged forecasted transaction is still expected, amounts deferred in Accumulated other comprehensive loss will be amortized into earnings as a reduction of interest expense over the original term of the swaps beginning in 2022.

Risk Management Objective of Using Derivatives

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of its debt funding and, from time to time, through the use of derivative financial instruments. The Company enters into derivative financial instruments to manage exposures that result in the receipt or payment of future known and uncertain cash amounts, the values of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.

The Company is exposed to credit risk in the event of non-performance by the counterparties to the swaps if the derivative position has a positive balance. The Company believes it mitigates its credit risk by entering into swaps with major financial institutions. The Company continually monitors and actively manages interest costs on its variable-rate debt portfolio and may enter into additional interest rate swap positions or other derivative interest rate instruments based on market conditions. 

30

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Credit Risk-Related Contingent Features

The Company has agreements with each of its swap counterparties that contain a provision whereby if the Company defaults on certain of its unsecured indebtedness, the Company could also be declared in default on its swaps, resulting in an acceleration of payment under the swaps.

Other Financial Instruments

The Company’s other financial instruments had the following carrying values and fair values as of the dates shown (dollars in thousands, inclusive of amounts attributable to noncontrolling interests where applicable):

			June 30, 2021				December 31, 2020
	Level		Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Notes Receivable (a)		3	$	117,280	$	117,969	$	101,450	$	102,135
Mortgage and Other Notes Payable (a)		3		1,166,948		1,145,654		1,210,540		1,190,214
Investment in non-traded equity securities (b)		3		2,863		3,404		1,726		1,456
Unsecured notes payable and Unsecured line of credit (c)		2		506,009		507,596		559,514		544,532

(a)The Company determined the estimated fair value of these financial instruments using a discounted cash flow model with rates that take into account the credit of the borrower or tenant, where applicable, and interest rate risk. The Company also considered the value of the underlying collateral, taking into account the quality of the collateral, the credit quality of the borrower, the time until maturity and the current market interest rate environment.

(b)Represents the Operating Partnership’s cost-method investment in Fifth Wall (Note 4).

(c)The Company determined the estimated fair value of the unsecured notes payable and unsecured line of credit using quoted market prices in an open market with limited trading volume where available. In cases where there was no trading volume, the Company determined the estimated fair value using a discounted cash flow model using a rate that reflects the average yield of similar market participants.

The Company’s cash and cash equivalents, restricted cash, rents receivable, accounts payable and certain financial instruments included in other assets and other liabilities had fair values that approximated their carrying values due to their short maturity profiles at June 30, 2021.

9. Commitments and Contingencies

The Company is involved in various matters of litigation arising out of, or incident to, its business. While the Company is unable to predict with certainty the outcome of any particular matter, management does not expect, when such litigation is resolved, that the Company’s resulting exposure to loss contingencies, if any, will have a material adverse effect on its consolidated financial position.

Commitments and Guaranties

In conjunction with the development and expansion of various properties, the Company has entered into agreements with general contractors for the construction or development of properties aggregating approximately $36.3 million and $32.7 million as of June 30, 2021 and December 31, 2020, respectively.

At June 30, 2021 and December 31, 2020, the Company had Core and Fund letters of credit outstanding of $33.8 million and $35.6 million, respectively (Note 7). The Company has not recorded any obligation associated with these letters of credit. The majority of the letters of credit are collateral for existing indebtedness and other obligations of the Company.

10. Shareholders’ Equity, Noncontrolling Interests and Other Comprehensive Loss

Common Shares and Units

In addition to the share repurchase activity discussed below, the Company completed the following transactions in its Common Shares during the six months ended June 30, 2021:

The Company withheld 3,050 restricted shares of its Common Shares (“Restricted Shares”) to pay the employees’ statutory minimum income taxes due on the value of the portion of their Restricted Shares that vested.

The Company recognized Common Share and Common OP Unit-based compensation expense totaling $4.7 million and $4.2 million in connection with Restricted Shares and Units (Note 13) for the six months ended June 30, 2021 and 2020, respectively.

31

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

In addition to the ATM Program activity discussed below, the Company completed the following transactions in its Common Shares during the year ended December 31, 2020:

The Company withheld 2,075 Restricted Shares to pay the employees’ statutory minimum income taxes due on the value of the portion of their Restricted Shares that vested.

The Company recognized Common Share and Common OP Unit-based compensation expense totaling $8.4 million in connection with Restricted Shares and Units (Note 13).

ATM Program

The Company has an at-the-market equity issuance program (“ATM Program”) that provides the Company an efficient and low-cost vehicle for raising public equity capital to fund its needs. The Company entered into its current $250.0 million ATM Program, which includes an optional “forward purchase” component, in the second quarter of 2019. The Company sold 2,071,991 Common Shares under its ATM Program during the six months ended June 30, 2021 generating $46.3 million of gross proceeds and $45.7 million of net proceeds after related issuance costs at a weighted-average price per share of $22.37 and $22.09, respectively. The Company did not sell or issue any Common Shares on a forward basis for the six months ended June 30, 2021 or the year ended December 31, 2020 and currently has approximately $123.9 million of availability under the ATM program.

Share Repurchase Program

During 2018, the Company’s board of trustees (the “Board”) approved a new share repurchase program, which authorizes management, at its discretion, to repurchase up to $200.0 million of its outstanding Common Shares. The program does not obligate the Company to repurchase any specific number of Common Shares and may be discontinued or extended at any time. The Company did not repurchase any shares during the six months ended June 30, 2021. During the first quarter of 2020, the Company repurchased 1,219,065 Common Shares for $22.4 million, inclusive of $0.1 million of fees at a weighted-average price per share of $18.29, under the share repurchase program, under which $122.6 million remains available as of June 30, 2021.

Dividends and Distributions

The following table sets forth the distributions declared and/or paid during the periods presented:

Date Declared	Amount Per Share		Record Date	Payment Date
November 5, 2019	$	0.29	December 31, 2019	January 15, 2020
February 26, 2020	$	0.29	March 31, 2020	April 15, 2020
March 15, 2021	$	0.15	March 31, 2021	April 15, 2021
May 5, 2021	$	0.15	June 30, 2021	July 15, 2021

Beginning with the second quarter of 2020, the Board temporarily suspended distributions on its Common Shares and Common Units, which suspension continued through the fourth quarter of 2020; however, distributions of $0.1 million were payable to preferred unit holders at each of June 30, 2020, September 30, 2020 and December 31, 2020. The Company reinstated quarterly distributions beginning in the first quarter of 2021.

32

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Accumulated Other Comprehensive Loss

The following tables set forth the activity in accumulated other comprehensive loss for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Gains or Losses on Derivative Instruments
Balance at April 1, 2021	$	(41,962	)
Other comprehensive loss before reclassifications - swap agreements		(10,073	)
Reclassification of realized interest on swap agreements		5,324
Net current period other comprehensive loss		(4,749	)
Net current period other comprehensive income attributable to noncontrolling    interests		(1,198	)
Balance at June 30, 2021	$	(47,909	)
Balance at April 1, 2020	$	(85,715	)
Other comprehensive loss before reclassifications - swap agreements		(8,621	)
Reclassification of realized interest on swap agreements		3,115
Net current period other comprehensive loss		(5,506	)
Net current period other comprehensive loss attributable to noncontrolling    interests		1,012
Balance at June 30, 2020	$	(90,209	)

	Gains or Losses on Derivative Instruments
Balance at January 1, 2021	$	(74,891	)
Other comprehensive income before reclassifications - swap agreements		23,483
Reclassification of realized interest on swap agreements		10,641
Net current period other comprehensive income		34,124
Net current period other comprehensive income attributable to noncontrolling    interests		(7,142	)
Balance at June 30, 2021	$	(47,909	)
Balance at January 1, 2020	$	(31,175	)
Other comprehensive loss before reclassifications - swap agreements		(83,395	)
Reclassification of realized interest on swap agreements		4,092
Net current period other comprehensive loss		(79,303	)
Net current period other comprehensive loss attributable to noncontrolling    interests		20,269
Balance at June 30, 2020	$	(90,209	)

33

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Noncontrolling Interests

The following tables summarize the change in the noncontrolling interests for the three and six months ended June 30, 2021 and 2020 (dollars in thousands):

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at April 1, 2021	$	94,930		$	522,592		$	617,522
Distributions declared of $0.15 per Common OP Unit		(1,052	)		—			(1,052	)
Net income (loss) for the three months ended June 30, 2021		398			(3,085	)		(2,687	)
Conversion of 7,173 Common OP Units to Common Shares by limited partners of the Operating Partnership		(115	)		—			(115	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(406	)		(257	)		(663	)
Reclassification of realized interest expense on swap agreements		53			1,808			1,861
Noncontrolling interest contributions		—			5,868			5,868
Noncontrolling interest distributions		—			(4,355	)		(4,355	)
Employee Long-term Incentive Plan Unit Awards		2,399			—			2,399
Reallocation of noncontrolling interests (c)		(1,119	)		—			(1,119	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at April 1, 2020	$	93,382		$	483,714		$	577,096
Distributions on Preferred OP Units		(123	)		—			(123	)
Net income for the three months ended June 30, 2020		1,259			44,237			45,496
Conversion of 259,712 Common OP Units to Common Shares by limited partners of the Operating Partnership		(4,072	)		—			(4,072	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(310	)		(1,869	)		(2,179	)
Reclassification of realized interest expense on swap agreements		42			1,125			1,167
Noncontrolling interest contributions		—			21,041			21,041
Noncontrolling interest distributions		—			(1,418	)		(1,418	)
Employee Long-term Incentive Plan Unit Awards		2,142			—			2,142
Noncontrolling interest gain		—			588			588
Reallocation of noncontrolling interests (c)		(1,999	)		—			(1,999	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

34

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at January 1, 2021	$	89,431		$	517,808		$	607,239
Distributions declared of $0.30 per Common OP Unit		(2,100	)		—			(2,100	)
Net income (loss) for the six months ended June 30, 2021		868			(6,857	)		(5,989	)
Conversion of 25,973 Common OP Units to Common Shares by limited partners of the Operating Partnership		(409	)		—			(409	)
Other comprehensive income - unrealized gain on valuation of swap agreements		1,494			1,886			3,380
Reclassification of realized interest expense on swap agreements		106			3,656			3,762
Noncontrolling interest contributions		—			17,109			17,109
Noncontrolling interest distributions		—			(11,031	)		(11,031	)
Employee Long-term Incentive Plan Unit Awards		6,448			—			6,448
Reallocation of noncontrolling interests (c)		(750	)		—			(750	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at January 1, 2020	$	97,670		$	546,987		$	644,657
Distributions declared of $0.29 per Common OP Unit		(1,972	)		—			(1,972	)
Net income (loss) for the six months ended June 30, 2020		923			(7,052	)		(6,129	)
Conversion of 407,594 Common OP Units to Common Shares by limited partners of the Operating Partnership		(6,544	)		—			(6,544	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(3,451	)		(18,257	)		(21,708	)
Reclassification of realized interest expense on swap agreements		49			1,390			1,439
Noncontrolling interest contributions		—			28,309			28,309
Noncontrolling interest distributions		—			(4,536	)		(4,536	)
Employee Long-term Incentive Plan Unit Awards		5,790			—			5,790
Reallocation of noncontrolling interests (c)		(2,144	)		—			(2,144	)
Noncontrolling interest gain		—			588			588
Cumulative effect of change in accounting principle		—			(11	)		(11	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

(a)Noncontrolling interests in the Operating Partnership are comprised of (i) the limited partners’ 3,101,958 Common OP Units at each of June 30, 2021 and 2020; (ii) 188 Series A Preferred OP Units at each of June 30, 2021 and 2020; (iii) 126,593 Series C Preferred OP Units at each of June 30, 2021 and 2020; and (iv) 3,434,894 and 2,886,207 LTIP units at June 30, 2021 and 2020, respectively, as discussed in Share Incentive Plan (Note 13). Distributions declared for Preferred OP Units are reflected in net income (loss) in the table above.

(b)Noncontrolling interests in partially-owned affiliates comprise third-party interests in Funds II, III, IV and V, and Mervyns II, and six other subsidiaries.

(c)Adjustment reflects the difference between the fair value of the consideration received or paid and the book value of the Common Shares, Common OP Units, Preferred OP Units, and LTIP Units involving changes in ownership.

35

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Preferred OP Units

There were no issuances of Preferred OP Units during the six months ended June 30, 2021 or the year ended December 31, 2020.

In 1999, the Operating Partnership issued 1,580 Series A Preferred OP Units in connection with the acquisition of a property, which have a stated value of $1000 per unit, and are entitled to a preferred quarterly distribution of the greater of (i) $22.50 (9% annually) per Series A Preferred OP Unit or (ii) the quarterly distribution attributable to a Series A Preferred OP Unit if such unit was converted into a Common OP Unit. Through June 30, 2021, 1,392 Series A Preferred OP Units were converted into 185,600 Common OP Units and then into Common Shares. The 188 remaining Series A Preferred OP Units are currently convertible into Common OP Units based on the stated value divided by $7.50. Either the Company or the holders can currently call for the conversion of the Series A Preferred OP Units at the lesser of $7.50 or the market price of the Common Shares as of the conversion date.

During 2016, the Operating Partnership issued 442,478 Common OP Units and 141,593 Series C Preferred OP Units to a third party to acquire Gotham Plaza (Note 4). The Series C Preferred OP Units have a value of $100.00 per unit and are entitled to a preferred quarterly distribution of $0.9375 per unit and are convertible into Common OP Units at a rate based on the share price at the time of conversion. If the share price is below $28.80 on the conversion date, each Series C Preferred OP Unit will be convertible into 3.4722 Common OP Units. If the share price is between $28.80 and $35.20 on the conversion date, each Series C Preferred OP Unit will be convertible into a number of Common OP Units equal to $100.00 divided by the closing share price. If the share price is above $35.20 on the conversion date, each Series C Preferred OP Unit will be convertible into 2.8409 Common OP Units. The Series C Preferred OP Units have a mandatory conversion date of December 31, 2025, at which time all units that have not been converted will automatically be converted into Common OP Units based on the same calculations. Through June 30, 2021, 15,000 Series C Preferred OP Units were converted into 51,887 Common OP Units and then into Common Shares.

11. Leases

As Lessor

The Company is engaged in the operation of shopping centers and other retail properties that are either owned or, with respect to certain shopping centers, operated under long-term ground leases that expire at various dates through June 20, 2066, with renewal options (as discussed further below). Space in the shopping centers is leased to tenants pursuant to agreements that provide for terms ranging generally from one month to sixty years and generally provide for additional rents based on certain operating expenses as well as tenants’ sales volumes. During the six months ended June 30, 2021 and 2020, the Company earned $29.3 million and $27.3 million, respectively in variable lease revenues, primarily for real estate taxes and common area maintenance charges, which are included in rental income in the consolidated statements of income.

The activity for the reserves related to billed rents and straight-line rents (including those under specific operating leases where the collection of rents is assessed to be not probable) is as follows:

	Six Months Ended June 30, 2021
	Balance at Beginning of Period		Provision (Recovery)		Adjustments to Valuation Accounts		Deductions			Balance at End of Period
Allowance for credit loss - billed rents	$	30,366	$	1,238	$	—	$	(2,639	)	$	28,965
Straight-line rent reserves		15,042		586		—		(2,329	)		13,299
Total - rents receivable	$	45,408	$	1,824	$	—	$	(4,968	)	$	42,264

As Lessee

During the six months ended June 30, 2021, the Company:

modified its Rye, New York corporate office lease during the first quarter of 2021. As a result, of the modification, the lease was remeasured and the lease liability and right-of-use asset were each reduced by $0.4 million.

terminated its Fund IV lease at 110 University Place in New York City during the second quarter of 2021 (which was previously impaired in 2020, Note 8) for $3.6 million, and de-recognized the related right-of-use asset of $31.4 million, lease liability of $46.0 million and building improvements and other assets totaling $10.3 million, resulting in a gain on lease termination of $0.7 million, or $0.2 million at the Company's share, which is reflected within Gain on disposition of properties in the consolidated statement of income.

36

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

During the year ended December 31, 2020, the Company:

entered into one new office lease as lessee for which the lease commenced in the third quarter of 2020. The Company recorded a right-of-use asset and corresponding lease liability of $1.7 million;

modified its 991 Madison master lease by converting the 49-year fixed term to a 15-year term. As a result of the modification, the lease was reclassified from a finance lease to an operating lease during the second quarter of 2020;

consolidated one property within the BSP II portfolio, 102 E. Broughton, (Note 2), which was subject to a ground lease classified as an operating lease, during the second quarter of 2020;

recorded an impairment charge of $12.3 million on a right-of-use asset for a Fund IV property, 110 University Place (Note 8) during the fourth quarter of 2020;

renewed one ground lease for Branch Plaza, an operating lease, for 22 years during the second quarter of 2020; and

modified its 1238 Wisconsin lease agreement in the fourth quarter of 2020 for a reduced purchase price from $14.5 million to $11.5 million and, as a result, remeasured and reduced its right-of-use asset and lease liability by $1.9 million .

Additional disclosures regarding the Company’s leases as lessee are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021			2020
Lease Cost
Finance lease cost:
Amortization of right-of-use assets	$	225		487	$	451		$	1,144
Interest on lease liabilities		97		599		192			1,449
Subtotal		322		1,086		643			2,593
Operating lease cost		2,230		1,725		4,516			3,119
Variable lease cost		19		6		34			22
Total lease cost	$	2,571	$	2,817	$	5,193		$	5,734
Other Information
Weighted-average remaining lease term - finance leases (years)						33.0			33.7
Weighted-average remaining lease term - operating leases (years)						14.4			26.9
Weighted-average discount rate - finance leases						6.3	%		6.2	%
Weighted-average discount rate - operating leases						5.1	%		5.4	%

Right-of-use assets – finance leases are included in Operating real estate (Note 2) in the consolidated balance sheets. Lease liabilities – finance leases are included in Accounts payable and other liabilities in the consolidated balance sheets (Note 5). Operating lease cost comprises amortization of right-of-use assets for operating properties (related to ground rents) or amortization of right-of-use assets for office and corporate assets and is included in Property operating expense or General and administrative expense, respectively, in the consolidated statements of income. Finance lease cost comprises amortization of right-of-use assets for certain ground leases, which is included in Property operating expense, as well as interest on lease liabilities, which is included in Interest expense in the consolidated statements of income.

37

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Lease Obligations

The scheduled future minimum (i) rental revenues from rental properties under the terms of non-cancelable tenant leases greater than one year (assuming no new or renegotiated leases or option extensions for such premises) and (ii) rental payments under the terms of all non-cancelable operating and finance leases in which the Company is the lessee, principally for office space, land and equipment, as of June 30, 2021, are summarized as follows (in thousands):

			Minimum Rental Payments
Year Ending December 31,	Minimum Rental Revenues (a)		Operating Leases (b)			Finance Leases (b)
2021 (Remainder)	$	100,375	$	3,010		$	69
2022		205,934		5,368			28
2023		190,196		5,389			—
2024		163,851		5,414			—
2025		133,093		5,329			—
Thereafter		528,888		29,711			12,515
		1,322,337		54,221			12,612
Interest		—		(13,360	)		(6,133	)
Total	$	1,322,337	$	40,861		$	6,479

a)Amount represents contractual lease maturities at June 30, 2021 including any extension options that management determined were reasonably certain of exercise. During 2020, numerous tenants were forced to suspend operations by government mandate as a result of the COVID-19 Pandemic. The Company has negotiated payment agreements with selected tenants which resulted in rent concessions or deferral of rents as discussed further below.

b)Minimum rental payments exclude options or renewals not reasonably certain of exercise.

During the three and six months ended June 30, 2021 and 2020, no single tenant or property collectively comprised more than 10% of the Company’s consolidated total revenues.

COVID-19 Pandemic Impacts

Beginning in March 2020, the COVID-19 Pandemic has had a material adverse impact on economic and market conditions, and consumer activity, and triggered a period of global and domestic economic slowdown. The COVID-19 Pandemic and government responses created disruption in global supply chains and has been adversely impacting many industries, including the domestic retail sectors in which the Company’s tenants operate. Under governmental restrictions and guidance, certain retailers were considered “essential businesses” and were permitted to remain fully operating during the COVID-19 Pandemic, while other “non-essential businesses” were ordered to decrease or close operations for an indeterminate period of time to protect their employees and customers from the spread of the virus. These disruptions, which have substantially ceased as of the date of this Report, have impacted the collectability of rent from the Company’s affected tenants primarily in 2020 and to a lesser extent in 2021. While the Company considers disruptions related to the COVID-19 Pandemic to be substantially over, if such government mandated closures are reinstated, they may have a material, adverse effect on the Company’s revenues, results of operations, financial condition, and liquidity in future periods.

Rent Collections – The Company collected or negotiated payment agreements of approximately 95.6% and 92.1% of its second quarter pre-COVID billings (original contract rents without regard to deferral or abatement agreements) for its Core Portfolio and the Funds, respectively.

Earnings Impact (Amounts Reflect the Company's Share) – The Company incurred aggregate credit losses and rent abatements totaling approximately $0 and $3.7 million for the three and six months ended June 30, 2021, respectively, compared to $9.4 million and $13.7 million for the three and six months ended June 30, 2020, respectively, primarily related to the COVID-19 Pandemic. In addition, the Company incurred impairment charges of $12.4 million (Note 8) for the six months ended June 30, 2020 primarily related to the COVID-19 Pandemic.

Other Impacts

38

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Rent Concession Agreements – During the six months ended June 30, 2021, the Company executed 74 rent concession arrangements with tenants comprised of 17 agreements for rent deferral and 57 agreements for rent abatements. Of these deferral agreements, 15 were accounted for as if no changes to the contract were made and therefore there were no changes to the current or future recognition of revenue and $7.7 million of deferred receivables are included in Rents receivable in the consolidated balance sheet at June 30, 2021. Consolidated rent abatements represented a $2.4 million reduction in revenues at the Company's share for the six months ended June 30, 2021.

Occupancy – At June 30, 2021, the Company’s pro rata Core and Fund leased occupancy rates were 92.4% and 89.0%, respectively, compared to 93.3% and 91.1% respectively, at June 30, 2020 reflecting primarily leases terminated as a result of the COVID-19 Pandemic including leases discharged in bankruptcy proceedings during 2020.

12. Segment Reporting

The Company has three reportable segments: Core Portfolio, Funds and Structured Financing. The Company’s Core Portfolio consists primarily of high-quality retail properties located primarily in high-barrier-to-entry, densely-populated metropolitan areas with a long-term investment horizon. The Company’s Funds hold primarily retail real estate in which the Company co-invests with high-quality institutional investors. The Company’s Structured Financing segment consists of earnings and expenses related to notes and mortgages receivable which are held within the Core Portfolio or the Funds (Note 3). Fees earned by the Company as the general partner or managing member of the Funds are eliminated in the Company’s consolidated financial statements and are not presented in the Company’s segments.

The following tables set forth certain segment information for the Company (in thousands):

	For the Three Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	46,000		$	28,660		$	—		$	—		$	74,660
Depreciation and amortization		(17,333	)		(14,012	)		—			—			(31,345	)
Property operating expenses, other operating and real estate taxes		(14,205	)		(11,189	)		—			—			(25,394	)
General and administrative expenses		—			—			—			(10,671	)		(10,671	)
Gain on disposition of properties		—			5,909			—			—			5,909
Operating income		14,462			9,368			—			(10,671	)		13,159
Interest income		—			—			2,054			—			2,054
Realized and unrealized holding gains on investments and other		—			2,841			(130	)		—			2,711
Equity in earnings of unconsolidated affiliates		669			437			—			—			1,106
Interest expense		(7,350	)		(10,255	)		—			—			(17,605	)
Income tax provision		—			—			—			(194	)		(194	)
Net income		7,781			2,391			1,924			(10,865	)		1,231
Net (income) loss attributable to noncontrolling interests		(406	)		3,093			—			—			2,687
Net income attributable to Acadia	$	7,375		$	5,484		$	1,924		$	(10,865	)	$	3,918

39

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

	For the Three Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing		Unallocated			Total
Revenues	$	38,602		$	25,171		$	—	$	—		$	63,773
Depreciation and amortization		(18,150	)		(15,643	)		—		—			(33,793	)
Property operating expenses, other operating and real estate taxes		(17,961	)		(9,542	)		—		—			(27,503	)
General and administrative expenses		—			—			—		(8,720	)		(8,720	)
Gain on disposition of properties		—			485			—		—			485
Operating income		2,491			471			—		(8,720	)		(5,758	)
Interest income		—			—			2,095		—			2,095
Realized and unrealized holding gains on investments and other		—			87,751			60		—			87,811
Equity in (losses) earnings of unconsolidated affiliates		(1,070	)		284			—		—			(786	)
Interest expense		(8,602	)		(9,717	)		—		—			(18,319	)
Income tax provision		—			—			—		(137	)		(137	)
Net (loss) income		(7,181	)		78,789			2,155		(8,857	)		64,906
Net loss (income) attributable to noncontrolling interests		5,068			(50,564	)		—		—			(45,496	)
Net (loss) income attributable to Acadia	$	(2,113	)	$	28,225		$	2,155	$	(8,857	)	$	19,410

	As of or for the Six Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	88,350		$	55,704		$	—		$	—		$	144,054
Depreciation and amortization		(34,220	)		(28,515	)		—			—			(62,735	)
Property operating expenses, other operating and real estate taxes		(27,862	)		(22,471	)		—			—			(50,333	)
General and administrative expenses		—			—			—			(19,667	)		(19,667	)
Gain on disposition of properties		4,612			5,909			—			—			10,521
Operating income		30,880			10,627			—			(19,667	)		21,840
Interest income		—			—			3,754			—			3,754
Realized and unrealized holding gains on investments and other		—			9,388			(170	)		—			9,218
Equity in (losses) earnings of unconsolidated affiliates		(459	)		3,828			—			—			3,369
Interest expense		(14,564	)		(20,182	)		—			—			(34,746	)
Income tax provision		—			—			—			(344	)		(344	)
Net income		15,857			3,661			3,584			(20,011	)		3,091
Net (income) loss attributable to noncontrolling interests		(1,013	)		7,002			—			—			5,989
Net income attributable to Acadia	$	14,844		$	10,663		$	3,584		$	(20,011	)	$	9,080
Real estate at cost (a)	$	2,323,767		$	1,719,486		$	—		$	—		$	4,043,253
Total assets (a)	$	2,209,033		$	1,763,299		$	117,280		$	—		$	4,089,612
Cash paid for acquisition of real estate	$	—		$	—		$	—		$	—		$	—
Cash paid for development and property improvement costs	$	5,465		$	11,155		$	—		$	—		$	16,620

40

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

	As of or for the Six Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	78,535		$	56,658		$	—		$	—		$	135,193
Depreciation and amortization		(35,207	)		(31,963	)		—			—			(67,170	)
Property operating expenses, other operating and real estate taxes		(29,775	)		(21,495	)		—			—			(51,270	)
General and administrative expenses		—			—			—			(17,790	)		(17,790	)
Impairment charges		—			(51,549	)		—			—			(51,549	)
Gain on disposition of properties		—			485			—			—			485
Operating income (loss)		13,553			(47,864	)		—			(17,790	)		(52,101	)
Interest income		—			—			5,024			—			5,024
Realized and unrealized holding gains on investments and other		—			87,751			(470	)		—			87,281
Equity in earnings (losses) of unconsolidated affiliates		572			(103	)		—			—			469
Interest expense		(16,852	)		(19,769	)		—			—			(36,621	)
Income tax benefit		—			—			—			815			815
Net (loss) income		(2,727	)		20,015			4,554			(16,975	)		4,867
Net loss (income) attributable to noncontrolling interests		6,284			(155	)		—			—			6,129
Net income attributable to Acadia	$	3,557		$	19,860		$	4,554		$	(16,975	)	$	10,996
Real estate at cost (a)	$	2,362,334		$	1,799,890		$	—		$	—		$	4,162,224
Total assets (a)	$	2,323,986		$	1,870,070		$	134,692		$	—		$	4,328,748
Cash paid for acquisition of real estate	$	19,963		$	1,245		$	—		$	—		$	21,208
Cash paid for development and property improvement costs	$	6,443		$	14,090		$	—		$	—		$	20,533

a)Real estate at cost and total assets for the Funds segment include $650.6 million and $604.8 million, or $189.0 million and $176.0 million net of non-controlling interests, related to Fund II’s City Point property at June 30, 2021 and 2020, respectively.  

13. Share Incentive and Other Compensation

Share Incentive Plan

The 2020 Share Incentive Plan (the “Share Incentive Plan”) authorizes the Company to issue options, Restricted Shares, LTIP Units and other securities (collectively “Awards”) to, among others, the Company’s officers, trustees and employees. At June 30, 2021 a total of 1,917,304 shares remained available to be issued under the Share Incentive Plan.

Restricted Shares and LTIP Units - Employees

During the six months ended June 30, 2021, and the year ended December 31, 2020, the Company issued 635,976 and 396,149 LTIP Units and 11,244 and 13,766 restricted share units (“Restricted Share Units”), respectively, to employees of the Company pursuant to the Share Incentive Plan. These awards were measured at their fair value on the grant date, incorporating the following factors:

A portion of these annual equity awards is granted in performance-based Restricted Share Units or LTIP Units that may be earned based on the Company’s attainment of specified relative total shareholder returns (“Relative TSR”) hurdles.

In the event the Relative TSR percentile falls between the 25th percentile and the 50th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 50% and 100% and in the event that the Relative TSR percentile falls between the 50th percentile and 75th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 100% and 200%.

Two-thirds (2/3) of the performance-based LTIP Units will vest based on the Company’s total shareholder return (“TSR”) for the three-year forward-looking performance period relative to the constituents of the SNL U.S. REIT Retail Shopping Center Index and one-third (1/3) on the Company’s TSR for the three-year forward-looking performance period as compared to the constituents of the SNL U.S. REIT Retail Index (both on a non-weighted basis).

41

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

If the Company’s performance fails to achieve the aforementioned hurdles at the culmination of the three-year performance period, all performance-based shares will be forfeited. Any earned performance-based shares vest 60% at the end of the performance period, with the remaining 40% of shares vesting ratably over the next two years.

For valuation of the 2021 and 2020 Performance Shares, a Monte Carlo simulation was used to estimate the fair values based on probability of satisfying the market conditions and the projected share prices at the time of payments, discounted to the valuation dates over the three-year performance periods. The assumptions include volatility (48.0% and 21.0%) and risk-free interest rates of (0.2% and 1.4%) for 2021 and 2020, respectively. The total value of the 2021 and 2020 Performance Shares will be expensed over the vesting period regardless of the Company’s performance.

The total value of the above Restricted Share Units and LTIP Units as of the grant date was $12.6 million during the six months ended June 30, 2021 and $10.4 million during the year ended December 31, 2020. Total long-term incentive compensation expense, including the expense related to the Share Incentive Plan, was $2.3 million and $2.1 million for the three months ended June 30, 2021 and 2020, and $4.7 million and $4.2 million for the six months ended June 30, 2021 and 2020, respectively and is recorded in General and administrative expense in the consolidated statements of income.

Restricted Shares and LTIP Units - Board of Trustees

In addition, members of the Board have been issued shares and units under the Share Incentive Plan. During the six months ended June 30, 2021, the Company issued 30,321 LTIP Units and 30,592 Restricted Shares as compensation to Trustees of the Company. A portion of LTIP Units and Restricted Shares vest over three years with 33% vesting May 9, 2022 and the remaining amount vesting ratably on May 9, 2023 and May 9, 2024. The remaining awards vest on May 9, 2022. The Restricted Shares do not carry voting rights or other rights of Common Shares until vesting and may not be transferred, assigned or pledged until the recipients have a vested non-forfeitable right to such shares. Dividends are not paid currently on unvested Restricted Shares, but are paid cumulatively from the issuance date through the applicable vesting date of such Restricted Shares. Total trustee fee expense, including the expense related to the Share Incentive Plan, was $0.8 million and $0.7 million for the six months ended June 30, 2021 and 2020, respectively, and is recorded in General and Administrative expense in the consolidated statements of income.

Long-Term Incentive Alignment Program

In 2009, the Company adopted the Long-Term Incentive Alignment Program (the “Program”) pursuant to which the Company may grant awards to employees, entitling them to receive up to 25% of any potential future payments of Promote to the Operating Partnership from Funds III, IV and V. The Company has granted such awards to employees representing 25% of the potential Promote payments from Fund III to the Operating Partnership, 23.1% of the potential Promote payments from Fund IV to the Operating Partnership and 8.4% of the potential Promote payments from Fund V to the Operating Partnership. Payments to senior executives under the Program require further Board approval at the time any potential payments are due pursuant to these grants. Compensation relating to these awards will be recognized in each reporting period in which Board approval is granted.

As payments to other employees are not subject to further Board approval, compensation relating to these awards will be recorded based on the estimated fair value at each reporting period in accordance with ASC Topic 718, Compensation– Stock Compensation. The awards in connection with Fund IV and Fund V were determined to have no intrinsic value as of June 30, 2021 or December 31, 2020.

The Company did not recognize any compensation expense for the six months ended June 30, 2021 or the year ended December 31, 2020 related to the Program in connection with Fund III, Fund IV or Fund V.

42

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

A summary of the status of the Company’s unvested Restricted Shares and LTIP Units is presented below:

Unvested Restricted Shares and LTIP Units	Common Restricted Shares			Weighted Grant-Date Fair Value		LTIP Units			Weighted Grant-Date Fair Value
Unvested at January 1, 2020		42,390		$	23.73		936,180		$	28.24
Granted		66,824			13.70		440,829			19.64
Vested		(19,264	)		27.72		(250,241	)		30.44
Forfeited		(39	)		24.77		(3,879	)		24.67
Unvested at December 31, 2020		89,911			15.42		1,122,889			24.38
Granted		43,078			19.94		666,297			19.48
Vested		(43,084	)		16.85		(283,024	)		26.66
Forfeited		(159	)		36.22		(91,637	)		36.22
Unvested at June 30, 2021		89,746		$	16.87		1,414,525		$	20.85

The weighted-average grant date fair value for Restricted Shares and LTIP Units granted for the six months ended June 30, 2021 and the year ended December 31, 2020 were $19.50 and $18.86, respectively. As of June 30, 2021, there was $22.0 million of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the Share Incentive Plan. That cost is expected to be recognized over a weighted-average period of 1.6 years. The total fair value of Restricted Shares that vested during the six months ended June 30, 2021 and the year ended December 31, 2020, was $0.7 million and $0.5 million, respectively. The total fair value of LTIP Units that vested (LTIP units vest primarily during the first quarter) during the six months ended June 30, 2021 and the year ended December 31, 2020, was $7.5 million and $7.6 million, respectively.

Other Plans

On a combined basis, the Company incurred a total of $0.3 million and $0.2 million of compensation expense related to the following employee benefit plans for the six months ended June 30, 2021 and 2020, respectively.

Employee Share Purchase Plan

The Acadia Realty Trust Employee Share Purchase Plan (the “Purchase Plan”), allows eligible employees of the Company to purchase Common Shares through payroll deductions. The Purchase Plan provides for employees to purchase Common Shares on a quarterly basis at a 15% discount to the closing price of the Company’s Common Shares on either the first day or the last day of the quarter, whichever is lower. A participant may not purchase more than $25,000 in Common Shares per year. Compensation expense will be recognized by the Company to the extent of the above discount to the closing price of the Common Shares with respect to the applicable quarter. A total of 4,651 and 1,604 Common Shares were purchased by employees under the Purchase Plan for the six months ended June 30, 2021 and 2020, respectively. On March 23, 2021, the Board adopted, which was subsequently approved by the Company’s shareholders at the 2021 annual meeting of shareholders, the Acadia Realty Trust 2021 Employee Share Purchase Plan which allows for a maximum aggregate issuance of 200,000 Common Shares.

Deferred Share Plan

During 2006, the Company adopted a Trustee Deferral and Distribution Election, under which the participating Trustees earn deferred compensation.

Employee 401(k) Plan

The Company maintains a 401(k) plan for employees under which the Company currently matches 50% of a plan participant’s contribution up to 6% of the employee’s annual salary. A plan participant may contribute up to a maximum of 15% of their compensation, up to $19,500, for the year ending December 31, 2021.

14. Earnings Per Common Share

Basic earnings per Common Share is computed by dividing net income attributable to Common Shareholders by the weighted-average Common Shares outstanding (Note 10). During the periods presented, the Company had unvested LTIP Units which provide for non-forfeitable rights to dividend equivalent payments. Accordingly, these unvested LTIP Units are considered participating securities and are included in the computation of basic earnings per Common Share pursuant to the two-class method.

43

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

Diluted earnings per Common Share reflects the potential dilution of the conversion of obligations and the assumed exercises of securities including the effects of Restricted Share Units issued under the Company’s Share Incentive Plans (Note 13). The effect of such shares is excluded from the calculation of earnings per share when anti-dilutive as indicated in the table below.

The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis. The income allocable to such units is allocated on this same basis and reflected as noncontrolling interests in the accompanying consolidated financial statements. As such, the assumed conversion of these units would have no net impact on the determination of diluted earnings per share.

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2021			2020			2021			2020
Numerator:
Net income attributable to Acadia	$	3,918		$	19,410		$	9,080		$	10,996
Less: net income attributable to participating securities		(156	)		(244	)		(312	)		(233	)
Income from continuing operations net of income attributable to participating securities	$	3,762		$	19,166		$	8,768		$	10,763
Denominator:
Weighted average shares for basic earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Effect of dilutive securities:
Employee unvested restricted shares		—			—			—			—
Denominator for diluted earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Basic and diluted earnings and basic income per Common Share from continuing operations attributable to Acadia	$	0.04		$	0.22		$	0.10		$	0.12
Anti-Dilutive Shares Excluded from Denominator:
Series A Preferred OP Units		188			188			188			188
Series A Preferred OP Units - Common share equivalent		25,067			25,067			25,067			25,067
Series C Preferred OP Units		126,593			126,593			126,593			126,593
Series C Preferred OP Units - Common share equivalent		439,556			439,556			439,556			439,556
Restricted shares		70,827			76,433			70,827			76,433

44

ACADIA REALTY TRUST AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

15. Subsequent Events 

Debt Extensions

On July 7, 2021, Fund V extended the maturity of the $40.3 million loan on its Fairlane Green property to June 5, 2022 pursuant to an existing extension option. In connection with the extension, Fund V made a principal payment of $6.6 million.

On July 21, 2021, Fund IV extended the maturity of the $22.9 million loan on its 146 Geary Street property to July 15, 2023 pursuant to an existing extension option. In connection with the extension, Fund IV made a principal payment of $3.6 million.

45

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

OVERVIEW

As of June 30, 2021, we own or have an ownership interest in 180 properties held through our Core Portfolio and Funds. Our Core Portfolio consists of those properties either 100% owned, or partially owned through joint venture interests, by the Operating Partnership or its subsidiaries, not including those properties owned through our Funds. These properties primarily consist of street and urban retail, and dense suburban shopping centers. Our Funds are investment vehicles through which our Operating Partnership and outside institutional investors invest in primarily opportunistic and value-add retail real estate. Currently, we have active investments in four Funds. A summary of our wholly-owned and partially-owned retail properties and their physical occupancies (including tenants who may have been forced to close their businesses as a result of the COVID-19 Pandemic, as discussed under “Significant Developments” below) at June 30, 2021 is as follows:

	Number of Properties				Operating Properties
	Development or Redevelopment		Operating		GLA		Occupancy
Core Portfolio:
Chicago Metro		—		39		741,333		85.7	%
New York Metro		—		27		346,481		84.9	%
Los Angeles Metro		—		1		14,000		100.0	%
San Francisco Metro		1		1		148,832		100.0	%
Washington DC Metro		1		28		323,351		70.6	%
Boston Metro		—		3		55,276		100.0	%
Suburban		3		26		3,913,343		90.6	%
Total Core Portfolio		5		125		5,542,616		88.8	%
Acadia Share of Total Core Portfolio		5		125		5,172,718		89.8	%
Fund Portfolio:
Fund II		—		1		469,518		42.6	%
Fund III		1		2		128,911		83.5	%
Fund IV		1		31		1,786,762		92.2	%
Fund V		—		14		4,380,222		86.9	%
Total Fund Portfolio		2		48		6,765,413		85.2	%
Acadia Share of Total Fund Portfolio		2		48		1,402,185		84.4	%
Total Core and Funds		7		173		12,308,029		86.8	%
Acadia Share of Total Core and Funds		7		173		6,574,903		88.7	%

The majority of our operating income is derived from rental revenues from operating properties, including expense recoveries from tenants, offset by operating and overhead expenses.

Our primary business objective is to acquire and manage commercial retail properties that will provide cash for distributions to shareholders while also creating the potential for capital appreciation to enhance investor returns. Generally, we focus on the following fundamentals to achieve this objective:

Own and operate a Core Portfolio of high-quality retail properties located primarily in high-barrier-to-entry, densely-populated metropolitan areas and create value through accretive development and re-tenanting activities coupled with the acquisition of high-quality assets that have the long-term potential to outperform the asset class as part of our Core asset recycling and acquisition initiative.

Generate additional external growth through an opportunistic yet disciplined acquisition program within our Funds. We target transactions with high inherent opportunity for the creation of additional value through:

value-add investments in street retail properties, located in established and “next generation” submarkets, with re-tenanting or repositioning opportunities,

opportunistic acquisitions of well-located real-estate anchored by distressed retailers, and

other opportunistic acquisitions which may include high-yield acquisitions and purchases of distressed debt.

46

Some of these investments historically have also included, and may in the future include, joint ventures with private equity investors for the purpose of making investments in operating retailers with significant embedded value in their real estate assets.

Maintain a strong and flexible balance sheet through conservative financial practices while ensuring access to sufficient capital to fund future growth.

SIGNIFICANT DEVELOPMENTS DURING THE SIX MONTHS ENDED JUNE 30, 2021

Special Note Regarding the COVID-19 Pandemic

During 2020, the COVID-19 Pandemic had a negative impact on the business of the Company and that of its tenants. In order to protect citizens and slow the spread of COVID-19, a majority of state governments in the United States instituted restrictions on travel, implemented “shelter-in-place” or “stay-at-home” orders and social distancing practices, and mandated shutdowns of certain “non-essential” businesses for what was then an indeterminate period of time. As a result, a majority of the Company’s retail tenants were forced to temporarily close their businesses during a portion of 2020. While substantially all tenants have since reopened, the tenant closures created concern regarding the Company’s ability to fully collect billed rents from non-operating tenants, many of which have requested rent concessions from the Company. In addition, during 2020, and to a lesser extent in 2021, the COVID-19 Pandemic has had a significant adverse impact on economic and market conditions resulting in a decline in the Company’s share price, disruption of or lack of access to the capital markets and depressed real estate values, among others during 2020.

For the six months ended June 30, 2021 the Company incurred charges totaling $3.7 million at its pro rata share, as compared to $26.1 million for the prior year period, as a result of the COVID-19 Pandemic. These charges comprised credit loss, straight-line rent reserves, rent abatements and, in 2020, impairment charges (Note 11).

While the Company currently considers the disruptions associated with the COVID-19 Pandemic to be substantially over, if such disruptions recur, they may have a material adverse effect on the Company’s revenues, results of operations, financial condition, and liquidity in future periods.

Investments

During the six months ended June 30, 2021, we did not make any new real estate investments within our Core or Fund portfolios.

Dispositions of Real Estate

During the six months ended June 30, 2021, the Company disposed of six properties and terminated one lease as follows:

On January 29, 2021, we sold one Core Portfolio consolidated property for $16.4 million, repaid the related mortgage of $6.7 million and recognized a gain of $4.6 million (Note 2).

On January 4, 2021, Fund V sold two land parcels at its unconsolidated Family Center at Riverdale property for a total of $10.5 million, repaid $7.9 million of the related mortgage and the venture recognized a gain of $3.2 million, of which the Company’s share was $0.6 million (Note 4)

On May 19, 2021, Fund III sold its 654 Broadway consolidated property for $10.0 million and recognized an insignificant gain on sale (Note 2).

On June 18, 2021, Fund IV sold four consolidated properties located in Maine within its NE Grocer Portfolio (the Airport Mall, Shaw's Waterville, Shaw's Windham and Wells properties) for aggregate proceeds of $39.9 million, repaid the related mortgages totaling $23.5 million, and recognized an aggregate gain on sale of $5.1 million of which the Company's share was $1.2 million (Note 2).

On June 25, 2021, Fund IV terminated its ground lease at 110 University Place and returned the property to the lessor, recognizing a gain on lease termination of $0.7 million, of which the Company's share was $0.2 million (Note 11).

Financing Activity

During the six months ended June 30, 2021, we (Note 7):

entered into a new amended and restated credit facility on June 29, 2021, increasing the capacity under the Company's Revolver by $50.0 million and increasing the Term loan by $50.0 million

extended one Fund III mortgage, two Fund IV mortgages and two Fund V mortgage aggregating $125.3 million of consolidated Fund debt

modified and extended two Fund IV mortgages which required paydowns of their previous aggregate outstanding balance of $44.6 million to $37.9 million, modified and extended the Fund IV bridge facility resulting in a six-month extension and a $10.0 million repayment, modified and extended the Fund V subscription line resulting in a one-year extension; and

47

made repayments of mortgages underlying property dispositions as noted above.

Structured Financing Investments

During the six months ended June 30, 2021, the Company made one first mortgage loan within its Structured Financing portfolio for $16.0 million. In addition, two loans receivable remain in default (Note 3).

Equity Sales

The Company sold 2,071,991 of its Common Shares during the six months ended June 30, 2021 for net proceeds of $45.7 million through its ATM Program (Note 10).

RESULTS OF OPERATIONS

See Note 12 in the Notes to Consolidated Financial Statements for an overview of our three reportable segments.

Comparison of Results for the Three Months Ended June 30, 2021 to the Three Months Ended June 30, 2020

The results of operations by reportable segment for the three months ended June 30, 2021 compared to the three months ended June 30, 2020 are summarized in the table below (in millions, totals may not add due to rounding):

	Three Months Ended												Three Months Ended
	June 30, 2021												June 30, 2020											Increase (Decrease)
	Core			Funds			SF			Total			Core			Funds			SF		Total			Core			Funds			SF			Total
Revenues	$	46.0		$	28.7		$	—		$	74.7		$	38.6		$	25.2		$	—	$	63.8		$	7.4		$	3.5		$	—		$	10.9
Depreciation and amortization		(17.3	)		(14.0	)		—			(31.3	)		(18.2	)		(15.6	)		—		(33.8	)		(0.9	)		(1.6	)		—			(2.5	)
Property operating expenses, other    operating and real estate taxes		(14.2	)		(11.2	)		—			(25.4	)		(18.0	)		(9.5	)		—		(27.5	)		(3.8	)		1.7			—			(2.1	)
General and administrative expenses		—			—			—			(10.7	)		—			—			—		(8.7	)		—			—			—			2.0
Impairment charges		—			—			—			—			—			—			—		—			—			—			—			—
Gain on disposition of properties		—			5.9			—			5.9			—			0.5			—		0.5			—			5.4			—			5.4
Operating income (loss)		14.5			9.4			—			13.2			2.5			0.5			—		(5.8	)		12.0			8.9			—			19.0
Interest and other income		—			—			2.1			2.1			—			—			2.1		2.1			—			—			—			—
Realized and unrealized holding gains on investments and other		—			2.8			(0.1	)		2.7			—			87.8			0.1		87.8			—			(85.0	)		0.2			(85.1	)
Equity in earnings (losses) of unconsolidated affiliates		0.7			0.4			—			1.1			(1.1	)		0.3			—		(0.8	)		1.8			0.1			—			1.9
Interest expense		(7.4	)		(10.3	)		—			(17.6	)		(8.6	)		(9.7	)		—		(18.3	)		(1.2	)		0.6			—			(0.7	)
Income tax (provision) benefit		—			—			—			(0.2	)		—			—			—		(0.1	)		—			—			—			(0.1	)
Net income (loss)		7.8			2.4			1.9			1.2			(7.2	)		78.8			2.2		64.9			15.0			(76.4	)		(0.3	)		(63.7	)
Net (income) loss attributable to noncontrolling interests		(0.4	)		3.1			—			2.7			5.1			(50.6	)		—		(45.5	)		(5.5	)		53.7			—			48.2
Net income (loss) attributable to Acadia	$	7.4		$	5.5		$	1.9		$	3.9		$	(2.1	)	$	28.2		$	2.2	$	19.4		$	9.5		$	(22.7	)	$	(0.3	)	$	(15.5	)

Core Portfolio

The results of operations for our Core Portfolio segment are depicted in the table above under the headings labeled “Core.” Segment net income attributable to Acadia for our Core Portfolio increased $9.5 million for the three months ended June 30, 2021 compared to the prior year period as a result of the changes further described below.

Revenues for our Core Portfolio increased $7.4 million for the three months ended June 30, 2021 compared to the prior year period primarily due to (i) a $6.4 million decrease in credit loss reserves in 2021 primarily related to the COVID-19 Pandemic (Note 11), (ii) $1.8 million from the reversal of reserved amounts for cash received on past due balances and (iii) $1.5 million from increased tenant recoveries due to higher operating expenses. These increases were partially offset by decreases in revenues of $1.1 million from an increase in COVID-19 Pandemic abatements in 2021 and $0.8 million for tenants that vacated during 2020.

Property operating expenses, other operating and real estate taxes for our Core Portfolio decreased $3.8 million for the three months ended June 30, 2021 compared to the prior year period primarily due to $6.8 million from charges related to the Brandywine Holdings litigation in 2020 (Note 7). The decrease was primarily offset by a $1.3 million overall increase in operating expenses following the COVID-19 Pandemic in 2020, a $1.2 million increase in real estate tax expenses primarily across the Chicago properties and $0.5 million increase attributable to additional ground rent for new operating leases that commenced after June 30, 2020.

Equity in earnings (losses) of unconsolidated affiliates for our Core Portfolio increased $1.8 million for the three months ended June 30, 2021 compared to the prior year period, primarily due to credit loss reserves at unconsolidated properties in 2020.

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Interest expense for our Core Portfolio decreased $1.2 million for the three months ended June 30, 2021 compared to the prior year period primarily due to lower average outstanding borrowings in 2021.

Net (income) loss attributable to noncontrolling interests for our Core Portfolio decreased $5.5 million for the three months ended June 30, 2021 compared to the prior year period based on the noncontrolling interests’ share of the variances discussed above.

Funds

The results of operations for our Funds segment are depicted in the table above under the headings labeled “Funds.” Segment net income attributable to Acadia for the Funds decreased $22.7 million for the three months ended June 30, 2021 compared to the prior year period as a result of the changes described below.

Revenues for the Funds increased $3.5 million for the three months ended June 30, 2021 compared to the prior year period primarily due to (i) a $3.8 million decrease in credit loss reserves in 2021 primarily related to the COVID-19 Pandemic (Note 11), (ii) a $1.6 million from the reversal of reserved amounts for cash received on past due balances and (iii) $0.8 million from increased activity at City Point's Market Hall and Event Space. These increases were partially offset by decreases in revenues of $2.2 million for tenants that vacated during 2020 and $0.6 million from an increase in COVID-19 abatements in 2021.

Depreciation and amortization for the Funds decreased $1.6 million for the three months ended June 30, 2021 compared to the prior year period primarily due to the write-off of costs associated with tenants that vacated during 2020.

Property operating expenses, other operating and real estate taxes for the Funds increased $1.7 million for the three months ended June 30, 2021 compared to the prior year period primarily due to an overall increase of operating expenses following the COVID-19 Pandemic in 2020.

Gain on disposition of properties for the Funds increased $5.4 million for the three months ended June 30, 2021 compared to the prior year period due to dispositions of 654 Broadway at Fund III and the NE Grocer Portfolio and 110 University at Fund IV in 2021 compared to the sale of Colonie Plaza at Fund IV in 2020 (Note 2, Note 11).

Realized and unrealized holding gains on investments and other includes primarily a $2.4 million mark-to-market adjustment on the Investment in Albertsons (Note 4) during the three months ended June 30, 2021 compared to a $64.9 million mark-to-market adjustment and a $22.8 million net realized gain on disposition of shares related to the Investment in Albertsons in 2020.

Net (income) loss attributable to noncontrolling interests for the Funds increased $53.7 million for the three months ended June 30, 2021 compared to the prior year period based on the noncontrolling interests’ share of the variances discussed above. Net loss attributable to noncontrolling interests in the Funds includes asset management fees earned by the Company of $3.0 million and $4.1 million for the three months ended June 30, 2021 and 2020, respectively.

Unallocated

The Company does not allocate general and administrative expense and income taxes to its reportable segments. These unallocated amounts are depicted in the table above under the headings labeled “Total.” General and administrative expense increased $2.0 million for the three months ended June 30, 2021 compared to the prior year period due to increased compensation expense primarily attributable to an increase in the number of employees and the valuation of equity grants in 2021.

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Comparison of Results for the Six Months Ended June 30, 2021 to the Six Months Ended June 30, 2020

The results of operations by reportable segment for the six months ended June 30, 2021 compared to the six months ended June 30, 2020 are summarized in the table below (in millions, totals may not add due to rounding):

	Six Months Ended												Six Months Ended
	June 30, 2021												June 30, 2020												Increase (Decrease)
	Core			Funds			SF			Total			Core			Funds			SF			Total			Core			Funds			SF			Total
Revenues	$	88.4		$	55.7		$	—		$	144.1		$	78.5		$	56.7		$	—		$	135.2		$	9.9		$	(1.0	)	$	—		$	8.9
Depreciation and amortization		(34.2	)		(28.5	)		—			(62.7	)		(35.2	)		(32.0	)		—			(67.2	)		(1.0	)		(3.5	)		—			(4.5	)
Property operating expenses, other    operating and real estate taxes		(27.9	)		(22.5	)		—			(50.3	)		(29.8	)		(21.5	)		—			(51.3	)		(1.9	)		1.0			—			(1.0	)
General and administrative expenses		—			—			—			(19.7	)		—			—			—			(17.8	)		—			—			—			1.9
Impairment charges		—			—			—			—			—			(51.5	)		—			(51.5	)		—			(51.5	)		—			(51.5	)
Gain on disposition of properties		4.6			5.9			—			10.5			—			0.5			—			0.5			4.6			5.4			—			10.0
Operating income (loss)		30.9			10.6			—			21.8			13.6			(47.9	)		—			(52.1	)		17.3			58.5			—			73.9
Interest and other income		—			—			3.8			3.8			—			—			5.0			5.0			—			—			(1.2	)		(1.2	)
Realized and unrealized holding gains on investments and other		—			9.4			(0.2	)		9.2			—			87.8			(0.5	)		87.3			—			(78.4	)		(0.3	)		(78.1	)
Equity in earnings (losses) of unconsolidated affiliates		(0.5	)		3.8			—			3.4			0.6			(0.1	)		—			0.5			(1.1	)		3.9			—			2.9
Interest expense		(14.6	)		(20.2	)		—			(34.7	)		(16.9	)		(19.8	)		—			(36.6	)		(2.3	)		0.4			—			(1.9	)
Income tax (provision) benefit		—			—			—			(0.3	)		—			—			—			0.8			—			—			—			(1.1	)
Net income (loss)		15.9			3.7			3.6			3.1			(2.7	)		20.0			4.6			4.9			18.6			(16.3	)		(1.0	)		(1.8	)
Net (income) loss attributable to noncontrolling interests		(1.0	)		7.0			—			6.0			6.3			(0.2	)		—			6.1			(7.3	)		7.2			—			(0.1	)
Net income (loss) attributable to Acadia	$	14.8		$	10.7		$	3.6		$	9.1		$	3.6		$	19.9		$	4.6		$	11.0		$	11.2		$	(9.2	)	$	(1.0	)	$	(1.9	)

Core Portfolio

The results of operations for our Core Portfolio segment are depicted in the table above under the headings labeled “Core.” Segment net income attributable to Acadia for our Core Portfolio increased $11.2 million for the six months ended June 30, 2021 compared to the prior year period as a result of the changes further described below.

Revenues for our Core Portfolio increased $9.9 million for the six months ended June 30, 2021 compared to the prior year period primarily due to (i) $8.1 million decrease in credit loss reserves in 2021 primarily related to the COVID-19 Pandemic (Note 11), (ii) $2.7 million related to the consolidation of Town Center in 2020 (Note 4), (iii) $2.3 million from increased tenant recoveries due to higher operating expenses and (iv) $1.8 million from recoveries of past due balances. These increases were partially offset by decreases in revenues of $2.6 million for tenants that vacated during 2020, $1.4 million from an additional increase in abatements due to the COVID-19 Pandemic in 2021 and $0.7 million for a co-tenancy clause at a property.

Depreciation and amortization for our Core Portfolio decreased $1.0 million for the six months ended June 30, 2021 compared to the prior year period primarily due to the write off of costs associated with tenants that vacated during 2020.

Property operating expenses, other operating and real estate taxes for our Core Portfolio decreased $1.9 million for the six months ended June 30, 2021 compared to the prior year period primarily due to $6.8 million from interest and related charges for Brandywine Holdings litigation in 2020. The increase was primarily offset by (i) a $1.8 million overall increase in operating expenses following the COVID-19 Pandemic in 2020, (ii) a $1.6 million increase in real estate tax expenses primarily across the Chicago properties and (iii) $1.3 million increase attributable to additional ground rent for new operating leases that commenced after June 30, 2020.

The gain on disposition of properties for our Core Portfolio of $4.6 million for the six months ended June 30, 2021 relates to the sale of 60 Orange Street (Note 2).

Equity in earnings (losses) of unconsolidated affiliates for our Core Portfolio decreased $1.1 million for the six months ended June 30, 2021 compared to the prior year period primarily due to the consolidation of Town Center in 2020.

Interest expense for our Core Portfolio decreased $2.3 million for the six months ended June 30, 2021 compared to the prior year period primarily due to $1.2 million from the modification of a financing lease to an operating lease in 2020 (Note 11) and $1.0 million from higher average outstanding borrowings in 2020.

Net (income) loss attributable to noncontrolling interests for our Core Portfolio decreased $7.3 million for the six months ended June 30, 2021 compared to the prior year period based on the noncontrolling interests’ share of the variances discussed above.

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Funds

The results of operations for our Funds segment are depicted in the table above under the headings labeled “Funds.” Segment net income attributable to Acadia for the Funds decreased $9.2 million for the six months ended June 30, 2021 compared to the prior year period as a result of the changes described below.

Revenues for the Funds decreased $1.0 million for the six months ended June 30, 2021 compared to the prior year period primarily due to (i) $3.3 million for tenants that vacated during 2020, (ii) $1.4 million from an increase in rent abatements related to the COVID-19 Pandemic in 2021 and (iii) $0.8 million from property dispositions in 2021. These decreases were partially offset by increases in revenues of $2.6 million from a decrease in credit loss reserves in 2021 primarily related to the COVID-19 Pandemic (Note 11) and $1.6 million from the reversal of reserved amounts for cash received on past due balances.

Depreciation and amortization for the Funds decreased $3.5 million for the six months ended June 30, 2021 compared to the prior year period primarily due to the write-off of costs associated with tenants that vacated during 2020.

Property operating expenses, other operating and real estate taxes for the Funds increased $1.0 million for the six months ended June 30, 2021 compared to the prior year period primarily due to an overall increase of operating expenses following the COVID-19 Pandemic in 2020.

Impairment charges for the Funds decreased $51.5 million for the six months ended June 30, 2021 compared to the prior year period (Note 8). Impairment charges totaling $51.5 million during the first quarter of 2020 for the Funds relate to $33.8 million for 654 Broadway and Cortlandt Crossing in Fund III and $17.7 million for 801 Madison and 146 Geary Street in Fund IV.

Gain on disposition of properties for the Funds increased $5.4 million for the six months ended June 30, 2021 compared to the prior year period due to dispositions of 654 Broadway at Fund III and the NE Grocer Portfolio and 110 University at Fund IV in 2021 compared to the sale of Colonie Plaza in 2020 (Note 2, Note 11).

Equity in earnings (losses) of unconsolidated affiliates for the Funds increased $3.9 million for the six months ended June 30, 2021 compared to the prior year period primarily due to the $3.2 million gain on sale related to two land parcels at Riverdale Family Center in Fund V (Note 2)

Realized and unrealized holding losses on investments and other includes a $8.6 million mark-to-market adjustment on the Investment in Albertsons (Note 4) during the six months ended June 30, 2021 compared to a $64.9 million mark-to-market adjustment and a $22.8 million net realized gain on disposition of shares related to the Investment in Albertsons in 2020.

Net (income) loss attributable to noncontrolling interests for the Funds increased $7.2 million for the six months ended June 30, 2021 compared to the prior year period based on the noncontrolling interests’ share of the variances discussed above. Net loss attributable to noncontrolling interests in the Funds includes asset management fees earned by the Company of $6.1 million and $8.4 million for the six months ended June 30, 2021 and 2020, respectively.

Structured Financing

The results of operations for our Structured Financing segment are depicted in the table above under the headings labeled “SF.” Interest income for the Structured Financing portfolio decreased $1.2 million for the six months ended June 30, 2021 compared to the prior year period primarily due the conversion of the Brandywine Note Receivable to equity in 2020 (Note 4).

Unallocated

The Company does not allocate general and administrative expense and income taxes to its reportable segments. These unallocated amounts are depicted in the table above under the headings labeled “Total.” Unallocated general and administrative expense increased $1.9 million for the six months ended June 30, 2021 compared to the prior year period due to increased compensation expense primarily attributable to an increase in the number of employees and the valuation of equity grants in 2021. Income tax (provision) benefit decreased $1.1 million for the six months ended June 30, 2021 compared to the prior year period due to the carry-back of net operating losses under current Federal rules in 2020.

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SUPPLEMENTAL FINANCIAL MEASURES

Net Property Operating Income

The following discussion of net property operating income (“NOI”) and rent spreads on new and renewal leases includes the activity from both our consolidated and our pro-rata share of unconsolidated properties within our Core Portfolio. Our Funds invest primarily in properties that typically require significant leasing and development. Given that the Funds are finite-life investment vehicles, these properties are sold following stabilization. For these reasons, we believe NOI and rent spreads are not meaningful measures for our Fund investments.

NOI represents property revenues less property expenses. We consider NOI and rent spreads on new and renewal leases for our Core Portfolio to be appropriate supplemental disclosures of portfolio operating performance due to their widespread acceptance and use within the REIT investor and analyst communities. NOI and rent spreads on new and renewal leases are presented to assist investors in analyzing our property performance, however, our method of calculating these may be different from methods used by other REITs and, accordingly, may not be comparable to such other REITs.

A reconciliation of consolidated operating income to net operating income - Core Portfolio follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Consolidated operating income (loss) (a)	$	13,159		$	(5,758	)	$	21,840		$	(52,101	)
Add back:
General and administrative		10,671			8,720			19,667			17,790
Depreciation and amortization		31,345			33,793			62,735			67,170
Impairment charges		—			—			—			51,549
Straight-line rent (recoveries) reserves		(232	)		3,562			585			6,529
Less:
Above/below-market rent, straight-line rent and other adjustments		(4,249	)		1,751			(9,533	)		(2,585	)
Gain on disposition of properties		(5,909	)		(485	)		(10,521	)		(485	)
Consolidated NOI		44,785			41,583			84,773			87,867
Noncontrolling interest in consolidated NOI		(12,373	)		(11,694	)		(23,234	)		(25,992	)
Less: Operating Partnership's interest in Fund NOI included above		(3,131	)		(2,826	)		(5,749	)		(6,421	)
Add: Operating Partnership's share of unconsolidated joint ventures NOI		3,764			2,874			7,064			9,220
NOI - Core Portfolio	$	33,045		$	29,937		$	62,854		$	64,674

(a) Does not include the Operating Partnership’s share of NOI from unconsolidated joint ventures within the Funds.

Same-Property NOI includes Core Portfolio properties that we owned for both the current and prior periods presented, but excludes those properties which we acquired, sold or expected to sell, and developed during these periods. The following table summarizes Same-Property NOI for our Core Portfolio (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Core Portfolio NOI	$	33,045		$	29,937		$	62,854		$	64,674
Less properties excluded from Same-Property NOI		(1,853	)		(2,542	)		(3,305	)		(4,123	)
Same-Property NOI	$	31,192		$	27,395		$	59,549		$	60,551
Percent change from prior year period		13.9	%					(1.7	)%
Components of Same-Property NOI:
Same-Property Revenues	$	44,830		$	38,887		$	86,219		$	84,617
Same-Property Operating Expenses		(13,638	)		(11,492	)		(26,670	)		(24,066	)
Same-Property NOI	$	31,192		$	27,395		$	59,549		$	60,551

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Rent Spreads on Core Portfolio New and Renewal Leases

The following table summarizes rent spreads on both a cash basis and straight-line basis for new and renewal leases based on leases executed within our Core Portfolio for the periods presented. Cash basis represents a comparison of rent most recently paid on the previous lease as compared to the initial rent paid on the new lease. Straight-line basis represents a comparison of rents as adjusted for contractual escalations, abated rent and lease incentives for the same comparable leases.

	Three Months Ended June 30, 2021						Six Months Ended June 30, 2021
Core Portfolio New and Renewal Leases	Cash Basis			Straight- Line Basis			Cash Basis			Straight- Line Basis
Number of new and renewal leases executed		19			19			30			30
GLA commencing		226,732			226,732			286,278			286,278
New base rent	$	20.29		$	20.39		$	21.69		$	22.52
Expiring base rent	$	19.93		$	18.93		$	21.34		$	20.15
Percent growth in base rent		1.8	%		7.7	%		1.6	%		11.8	%
Average cost per square foot (a)	$	0.28		$	0.28		$	3.40		$	3.40
Weighted average lease term (years)		4.6			4.6			5.5			5.5

(a) The average cost per square foot includes tenant improvement costs, leasing commissions and tenant allowances.

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Funds from Operations

We consider funds from operations (“FFO”) as defined by the National Association of Real Estate Investment Trusts (“NAREIT”) to be an appropriate supplemental disclosure of operating performance for an equity REIT due to its widespread acceptance and use within the REIT and analyst communities. FFO is presented to assist investors in analyzing our performance. It is helpful as it excludes various items included in net income that are not indicative of the operating performance, such as gains (losses) from sales of depreciated property, depreciation and amortization, and impairment of real estate. Our method of calculating FFO may be different from methods used by other REITs and, accordingly, may not be comparable to such other REITs. FFO does not represent cash generated from operations as defined by GAAP and is not indicative of cash available to fund all cash needs, including distributions. It should not be considered as an alternative to net income for the purpose of evaluating our performance or to cash flows as a measure of liquidity. Consistent with the NAREIT definition, we define FFO as net income (computed in accordance with GAAP), excluding gains (losses) from sales of depreciated property and impairment of depreciable real estate, plus depreciation and amortization, and after adjustments for unconsolidated partnerships and joint ventures. Also consistent with NAREIT’s definition of FFO, the Company has elected to include gains and losses incidental to its main business (including those related to its RCP investments such as Albertsons) in FFO. A reconciliation of net income attributable to Acadia to FFO follows (dollars in thousands, except per share amounts):

	Three Months Ended June 30,					Six Months Ended June 30,
	2021		2020			2021			2020
Net income attributable to Acadia	$	3,918	$	19,410		$	9,080		$	10,996
Depreciation of real estate and amortization of leasing costs (net of    noncontrolling interests' share)		23,077		24,390			46,884			48,478
Impairment charges (net of noncontrolling interests' share)		—		—			—			12,400
Loss (gain) on disposition of properties (net of noncontrolling interests' share)		933		(111	)		(4,163	)		(111	)
Income attributable to Common OP Unit holders		275		1,136			622			674
Distributions - Preferred OP Units		123		123			246			249
Funds from operations attributable to Common Shareholders and    Common OP Unit holders	$	28,326	$	44,948		$	52,669		$	72,686
Funds From Operations per Share - Diluted
Basic weighted-average shares outstanding, GAAP earnings		86,824,445		86,179,950			86,575,240			86,575,751
Weighted-average OP Units outstanding		5,134,501		5,003,571			5,127,111			5,096,783
Basic weighted-average shares outstanding, FFO		91,958,946		91,183,521			91,702,351			91,672,534
Assumed conversion of Preferred OP Units to Common Shares		464,623		464,623			464,623			464,623
Assumed conversion of LTIP units and Restricted Share Units to    Common Shares		203,373		—			87,244			—
Diluted weighted-average number of Common Shares and Common    OP Units outstanding, FFO		92,626,942		91,648,144			92,254,218			92,137,157
Diluted Funds from operations, per Common Share and Common OP Unit	$	0.31	$	0.49		$	0.57		$	0.79

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LIQUIDITY AND CAPITAL RESOURCES

Uses of Liquidity and Cash Requirements

Generally, our principal uses of liquidity are (i) distributions to our shareholders and OP unit holders, (ii) investments which include the funding of our capital committed to the Funds and property acquisitions and development/re-tenanting activities within our Core Portfolio, (iii) distributions to our Fund investors, (iv) debt service and loan repayments and (v) share repurchases.

Distributions

In order to qualify as a REIT for federal income tax purposes, we must distribute at least 90% of our taxable income to our shareholders. During the six months ended June 30, 2021, we paid dividends and distributions on our Common Shares and Preferred OP Units totaling $14.1 million. Beginning with the second quarter of 2020, the Board temporarily suspended distributions on its Common Shares and Common Units, which suspension continued through the fourth quarter of 2020. The Company reinstated quarterly distributions beginning in the first quarter of 2021 (Note 10).

Investments

During the six months ended June 30, 2021, we did not make any new real estate investments within our Core or Fund portfolios.

During the six months ended June 30, 2021, the Company made one first mortgage loan within its Structured Financing portfolio for $16.0 million (Note 3).

Capital Commitments

During the six months ended June 30, 2021, we made capital contributions aggregating $5.4 million to our Funds. At June 30, 2021, our share of the remaining capital commitments to our Funds aggregated $74.5 million as follows:

$3.4 million to Fund II. During August 2020, a recallable distribution of $15.7 million was made by Mervyn’s II to its investors, of which our share is $4.5 million. During 2021, Mervyn’s II recalled $3.8 million of the $15.7 million of which our share is $1.1 million.

$0.5 million to Fund III. Fund III was launched in May 2007 with total committed capital of $450.0 million, of which our original share was $89.6 million. During 2015, we acquired an additional interest, which had an original capital commitment of $20.9 million.

$9.7 million to Fund IV. Fund IV was launched in May 2012 with total committed capital of $530.0 million, of which our original share was $122.5 million.

$60.9 million to Fund V. Fund V was launched in August 2016 with total committed capital of $520.0 million, of which our initial share is $104.5 million.

Development Activities

During the six months ended June 30, 2021, capitalized costs associated with development activities totaled $4.8 million (Note 2). At June 30, 2021, we had a total of seven consolidated and one unconsolidated projects under development or redevelopment for which the estimated total cost to complete these projects through 2025 was $99.1 million to $126.3 million and our estimated share was approximately $55.5 million to $67.0 million. Substantially all remaining development and redevelopment costs are discretionary.

Debt

A summary of our consolidated debt, which includes the full amount of Fund related obligations and excludes our pro rata share of debt at our unconsolidated subsidiaries, is as follows (in thousands):

	June 30,			December 31,
	2021			2020
Total Debt - Fixed and Effectively Fixed Rate	$	1,053,715		$	1,143,152
Total Debt - Variable Rate		619,242			626,902
		1,672,957			1,770,054
Net unamortized debt issuance costs		(9,344	)		(6,763	)
Unamortized premium		497			548
Total Indebtedness	$	1,664,110		$	1,763,839

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As of June 30, 2021, our consolidated outstanding mortgage and notes payable aggregated $1,673.0 million, excluding unamortized premium of $0.5 million and net unamortized loan costs of $9.3 million, and were collateralized by 37 properties and related tenant leases. Stated interest rates on our outstanding indebtedness ranged from LIBOR + 1.39% to 5.89% with maturities that ranged from July 5, 2021 to April 15, 2035. Taking into consideration $900.8 million of notional principal under variable to fixed-rate swap agreements currently in effect, $1,053.7 million of the portfolio debt, or 63.0%, was fixed at a 3.90% weighted-average interest rate and $619.2 million, or 37.0% was floating at a 2.48% weighted average interest rate as of June 30, 2021. Our variable-rate debt includes $145.0 million of debt subject to interest rate caps.

Without regard to available extension options, there is $208.8 million of debt maturing in 2021 at a weighted-average interest rate of 3.10%; there is $4.2 million of scheduled principal amortization due in 2021; and our share of scheduled remaining 2021 principal payments and maturities on our unconsolidated debt was $13.0 million at June 30, 2021. In addition, $529.3 million of our total consolidated debt and $5.7 million of our pro-rata share of unconsolidated debt will come due in 2022. As it relates to the aforementioned maturing debt in 2021 and 2022, we have options to extend consolidated debt aggregating $172.4 million and $179.4 million at June 30, 2021, respectively; however, there can be no assurance that the Company will be able to successfully execute any or all of its available extension options. For the remaining indebtedness, we may not have sufficient cash on hand to repay such indebtedness, and, therefore, we expect to refinance at least a portion of this indebtedness or select other alternatives based on market conditions as these loans mature; however, there can be no assurance that we will be able to obtain financing at acceptable terms.

Share Repurchase Program

We maintain a share repurchase program under which $122.6 million remains available as of June 30, 2021 (Note 10). We did not repurchase any shares under this program during the six months ended June 30, 2021.

Sources of Liquidity

Our primary sources of capital for funding our liquidity needs include (i) the issuance of both public equity and OP Units, (ii) the issuance of both secured and unsecured debt, (iii) unfunded capital commitments from noncontrolling interests within our Funds, (iv) future sales of existing properties, (v) repayments of structured financing investments, and (vi) cash on hand and future cash flow from operating activities. Our cash on hand in our consolidated subsidiaries at June 30, 2021 totaled $34.6 million. Our remaining sources of liquidity are described further below.

ATM Program

We have an ATM Program (Note 10) which provides us an efficient and low-cost vehicle for raising public equity to fund our capital needs. In addition, from time to time, we have issued and intend to continue to issue, equity in follow-on offerings separate from our ATM Program. Net proceeds raised through our ATM Program and follow-on offerings are primarily used for acquisitions, both for our Core Portfolio and our pro-rata share of Fund acquisitions, and for general corporate purposes. During the six months ended June 30, 2021, the Company sold 2,071,991 of its Common Shares for net proceeds of $45.7 million through its ATM Program.

Fund Capital

During the six months ended June 30, 2021, Funds II and IV called for capital contributions of $3.8 million and $18.7 million, respectively, of which our aggregate share was $5.4 million. At June 30, 2021, unfunded capital commitments from noncontrolling interests within our Funds II, III, IV and V were $8.5 million, $1.4 million, $32.2 million and $242.0 million, respectively.

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Asset Sales and Other Transactions

During the six months ended June 30, 2021, the Company disposed of six properties and terminated one lease as follows:

On January 29, 2021, we sold one Core Portfolio consolidated property for $16.4 million, repaid the related mortgage of $6.7 million and recognized a gain of $4.6 million (Note 2).

On January 4, 2021, Fund V sold two land parcels at its unconsolidated Family Center at Riverdale property (Note 4) for a total of $10.5 million, repaid $7.9 million of the related mortgage and the venture recognized a gain of $3.2 million, of which the Company’s share was $0.6 million

On May 19, 2021, Fund III sold its consolidated 654 Broadway property for $10.0 million and recognized an insignificant gain on sale (Note 2).

On June 18, 2021, Fund IV sold four consolidated properties located in Maine within its NE Grocer Portfolio (the Airport Mall, Shaw's Waterville, Shaw's Windham and Wells properties) for aggregate proceeds of $39.9 million and recognized an aggregate gain on sale of $5.1 million of which the Company's share was $1.2 million (Note 2).

On June 25, 2021, Fund IV terminated its ground lease at 110 University Place and returned the property to the lessor, recognizing a gain on lease termination of $0.7 million, of which the Company's share was $0.2 million (Note 11).

During the six months ended June 30, 2021 the Company had no Structured Financing redemptions. The Company has two loans aggregating $14.1 million including accrued interest that are maturing during the remainder of 2021. The Company also has two Structured Financing investments aggregating $31.6 million including accrued interest that previously matured and have not been repaid (Note 3).

Financing and Debt

As of June 30, 2021, we had $355.2 million of additional capacity under existing Core and Fund revolving debt facilities. In addition, at that date within our Core and Fund portfolios, we had 82 unleveraged consolidated properties with an aggregate carrying value of approximately $1.7 billion, although there can be no assurance that we would be able to obtain financing for these properties at favorable terms, if at all.

HISTORICAL CASH FLOW

The following table compares the historical cash flow for the six months ended June 30, 2021 with the cash flow for the six months ended June 30, 2020 (in millions, totals may not add due to rounding):

	Six Months Ended June 30,
	2021			2020			Variance
Net cash provided by operating activities	$	51.0		$	59.1		$	(8.1	)
Net cash provided by (used in) investing activities		30.9			(87.2	)		118.1
Net cash (used in) provided by financing activities		(66.2	)		46.5			(112.7	)
Increase in cash and restricted cash	$	15.8		$	18.3		$	(2.5	)

Operating Activities

Our operating activities provided $8.1 million less cash during the six months ended June 30, 2021 as compared to the six months ended June 30, 2020, primarily due to a decrease from the monetization of the Company's Investment in Albertsons in 2020 offset by an increase in cash receipts from tenants in 2021.

Investing Activities

During the six months ended June 30, 2021 as compared to the six months ended June 30, 2020, our investing activities provided $118.1 million more cash, primarily due to (i) $43.0 million less cash used to issue notes receivable, (ii) $20.0 million less cash used in acquisition and lease of properties, (ii) $50.0 million more cash received from the disposition of properties, and (iii) $4.5 million less cash used in development, construction and property improvement costs.

Financing Activities

Our financing activities used $112.7 million more cash during the six months ended June 30, 2021 as compared to the six months ended June 30, 2020, primarily from (i) $197.8 million less cash provided from net borrowings, (ii) $11.2 million less cash provided from contributions from

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noncontrolling interests and (iii) $4.0 million more cash distributed to noncontrolling interests. These uses of cash were partially offset by (i) $45.7 million more cash provided by the sale of Common Shares, (ii) $37.2 million less cash used in dividends paid to Common Shareholders and (iii) $22.4 million less cash used to repurchase Common Shares.

OFF-BALANCE SHEET ARRANGEMENTS

We have the following investments made through joint ventures for the purpose of investing in operating properties. We account for these investments using the equity method of accounting. As such, our financial statements reflect our investment and our share of income and loss from, but not the individual assets and liabilities, of these joint ventures.

See Note 4 in the Notes to Consolidated Financial Statements, for a discussion of our unconsolidated investments. The Operating Partnership’s pro-rata share of unconsolidated non-recourse debt related to those investments is as follows (dollars in millions):

	Operating Partnership					June 30, 2021
Investment	Ownership Percentage			Pro-rata Share of Mortgage Debt		Effective Interest Rate (a)			Maturity Date
Eden Square		22.8	%	$	5.3		2.24	%	Dec 2021
Promenade at Manassas (b)		22.8	%		6.3		4.57	%	Dec 2021
3104 M Street		20.0	%		0.9		3.75	%	Dec 2021
Family Center at Riverdale (b)		18.0	%		4.4		3.68	%	May 2022
Gotham Plaza		49.0	%		9.1		5.09	%	Jun 2023
Renaissance Portfolio		20.0	%		32.0		3.81	%	Aug 2023
Crossroads		49.0	%		30.9		3.94	%	Oct 2024
Tri-City Plaza (c)		18.1	%		7.0		3.01	%	Oct 2024
Frederick Crossing (c)		18.1	%		4.4		3.26	%	Dec 2024
Frederick County Square (c)		18.1	%		3.8		4.00	%	Jan 2025
840 N. Michigan		88.4	%		65.0		4.36	%	Feb 2025
650 Bald Hill Road		20.8	%		3.3		3.75	%	Jun 2026
Georgetown Portfolio		50.0	%		7.9		4.72	%	Dec 2027
Total				$	180.3

(a)Effective interest rates incorporate the effect of interest rate swaps and caps that were in effect at June 30, 2021, where applicable.

(b)The debt has one available 12-month extension option.

(c)The debt has two available 12-month extension options.

CRITICAL ACCOUNTING POLICIES

Management’s discussion and analysis of financial condition and results of operations is based upon our Consolidated Financial Statements, which have been prepared in accordance with U.S. GAAP. The preparation of these Consolidated Financial Statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses. We base our estimates on historical experience and assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. We believe there have been no material changes to the items that we disclosed as our critical accounting policies under Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” in our 2020 Annual Report on Form 10-K.

Recently Issued and Adopted Accounting Pronouncements

Reference is made to Note 1 for information about recently issued accounting pronouncements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

Information as of June 30, 2021

Our primary market risk exposure is to changes in interest rates related to our mortgage and other debt. See Note 7 in the Notes to Consolidated Financial Statements, for certain quantitative details related to our mortgage and other debt.

Currently, we manage our exposure to fluctuations in interest rates primarily through the use of fixed-rate debt and interest rate swap and cap agreements. As of June 30, 2021, we had total mortgage and other notes payable of $1,673.0 million, excluding the unamortized premium of

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$0.5 million and net unamortized debt issuance costs of $9.3 million, of which $1,053.7 million, or 63.0% was fixed-rate, inclusive of debt with rates fixed through the use of derivative financial instruments, and $619.2 million, or 37.0%, was variable-rate based upon LIBOR or Prime rates plus certain spreads. As of June 30, 2021, we were party to 30 interest rate swaps and four interest rate cap agreements to hedge our exposure to changes in interest rates with respect to $900.8 million and $145.0 million of LIBOR-based variable-rate debt, respectively.

The following table sets forth information as of June 30, 2021 concerning our long-term debt obligations, including principal cash flows by scheduled maturity (without regard to available extension options) and weighted average effective interest rates of maturing amounts (dollars in millions):

Core Consolidated Mortgage and Other Debt

Year	Scheduled Amortization		Maturities		Total		Weighted-Average Interest Rate
2021 (Remainder)	$	1.6	$	—	$	1.6		—	%
2022		3.3		—		3.3		—	%
2023		2.9		11.8		14.7		3.8	%
2024		2.7		7.3		10.0		4.7	%
2025		2.8		121.4		124.2		4.0	%
Thereafter		10.4		517.1		527.5		4.1	%
	$	23.7	$	657.6	$	681.3

Fund Consolidated Mortgage and Other Debt

Year	Scheduled Amortization		Maturities		Total		Weighted-Average Interest Rate
2021 (Remainder)	$	2.6	$	208.8	$	211.4		3.1	%
2022		3.9		522.1		526.0		3.9	%
2023		3.8		40.9		44.7		4.0	%
2024		2.6		199.5		202.1		3.2	%
2025		0.2		2.4		2.6		3.4	%
Thereafter		0.1		4.8		4.9		3.4	%
	$	13.2	$	978.5	$	991.7

Mortgage Debt in Unconsolidated Partnerships (at our Pro-Rata Share)

Year	Scheduled Amortization		Maturities		Total		Weighted-Average Interest Rate
2021 (Remainder)	$	0.7	$	12.3	$	13.0		3.5	%
2022		1.3		4.4		5.7		3.7	%
2023		1.3		40.6		41.9		4.1	%
2024		1.0		39.6		40.6		3.7	%
2025		0.3		68.8		69.1		4.3	%
Thereafter		0.6		9.4		10.0		4.4	%
	$	5.2	$	175.1	$	180.3

Without regard to available extension options, in 2021, $213.0 million of our total consolidated debt and $13.0 million of our pro-rata share of unconsolidated outstanding debt will become due. In addition, $529.3 million of our total consolidated debt and $5.7 million of our pro-rata share of unconsolidated debt will become due in 2022. As it relates to the aforementioned maturing debt in 2021 and 2022, we have options to extend consolidated debt aggregating $172.4 million and $179.4 million, respectively; however, there can be no assurance that the Company will be able successfully execute any or all of its available extension options. As we intend on refinancing some or all of such debt at the then-existing market interest rates, which may be greater than the current interest rates, our interest expense would increase by approximately $7.6 million annually if the interest rate on the refinanced debt increased by 100 basis points. After giving effect to noncontrolling interests, our share of this increase would be $1.8 million. Interest expense on our variable-rate debt of $619.2 million, net of variable to fixed-rate swap agreements currently in effect, as of June 30, 2021, would increase $6.2 million if LIBOR increased by 100 basis points. After giving effect to noncontrolling interests, our share of this increase would be $1.5 million. We may seek additional variable-rate financing if and when pricing and other

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commercial and financial terms warrant. As such, we would consider hedging against the interest rate risk related to such additional variable-rate debt through interest rate swaps and protection agreements, or other means.

Based on our outstanding debt balances as of June 30, 2021, the fair value of our total consolidated outstanding debt would decrease by approximately $5.7 million if interest rates increase by 1%. Conversely, if interest rates decrease by 1%, the fair value of our total outstanding debt would increase by approximately $26.8 million.

As of June 30, 2021, and December 31, 2020, we had consolidated notes receivable of $117.3 million and $101.5 million, respectively. We determined the estimated fair value of our notes receivable by discounting future cash receipts utilizing a discount rate equivalent to the rate at which similar notes receivable would be originated under conditions then existing.

Based on our outstanding notes receivable balances as of June 30, 2021, the fair value of our total outstanding notes receivable would decrease by approximately $1.5 million if interest rates increase by 1%. Conversely, if interest rates decrease by 1%, the fair value of our total outstanding notes receivable would increase by approximately $1.6 million.

Summarized Information as of December 31, 2020

As of December 31, 2020, we had total mortgage and other notes payable of $1,770.1 million, excluding the unamortized premium of $0.5 million and unamortized debt issuance costs of $6.8 million, of which $1,143.2 million, or 64.6% was fixed-rate, inclusive of debt with rates fixed through the use of derivative financial instruments, and $626.9 million, or 35.4%, was variable-rate based upon LIBOR or Prime rates plus certain spreads. As of December 31, 2020, we were party to 39 interest rate swap and four interest rate cap agreements to hedge our exposure to changes in interest rates with respect to $988.6 million and $139.2 million of LIBOR-based variable-rate debt, respectively.

Interest expense on our variable-rate debt of $626.9 million as of December 31, 2020, would have increased $6.3 million if LIBOR increased by 100 basis points. Based on our outstanding debt balances as of December 31, 2020, the fair value of our total outstanding debt would have decreased by approximately $9.2 million if interest rates increased by 1%. Conversely, if interest rates decreased by 1%, the fair value of our total outstanding debt would have increased by approximately $26.7 million.

Changes in Market Risk Exposures from December 31, 2020 to June 30, 2021

Our interest rate risk exposure from December 31, 2020, to June 30, 2021, has decreased on an absolute basis, as the $626.9 million of variable-rate debt as of December 31, 2020, has decreased to $619.2 million as of June 30, 2021. As a percentage of our overall debt, our interest rate risk exposure has increased as our variable-rate debt accounted for 35.4% of our consolidated debt as of December 31, 2020 compared to 37.0% as of June 30, 2021.

ITEM 4. CONTROLS AND PROCEDURES.

Disclosure Controls and Procedures

Our disclosure controls and procedures include internal controls and other procedures designed to provide reasonable assurance that information required to be disclosed in this and other reports filed under the Exchange Act, is recorded, processed, summarized, and reported within the required time periods specified in the SEC’s rules and forms; and that such information is accumulated and communicated to management, including our chief executive officer and chief financial officer, to allow timely decisions regarding required disclosures. It should be noted that no system of controls can provide complete assurance of achieving a company’s objectives and that future events may impact the effectiveness of a system of controls. Our chief executive officer and chief financial officer, after conducting an evaluation, together with members of our management, of the effectiveness of the design and operation of our disclosure controls and procedures as of June 30, 2021, have concluded that our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) were effective as of June 30, 2021, at a reasonable level of assurance.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting during our most recently completed fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal controls over financial reporting.

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PART II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS.

From time to time, we are a party to various legal proceedings, claims or regulatory inquiries and investigations arising out of, or incident to, our ordinary course of business. While we are unable to predict with certainty the outcome of any particular matter, management does not expect, when such matters are resolved, that our resulting exposure to loss contingencies, if any, will have a material adverse effect on our consolidated financial position.

ITEM 1A. RISK FACTORS.

Except to the extent additional factual information disclosed elsewhere in this Report relates to such risk factors (including, without limitation, the matters discussed in Part I, “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations”), there were no material changes to the risk factors disclosed in Part I, “Item 1A. Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2020.

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

Not applicable.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES.

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES.

Not applicable.

ITEM 5. OTHER INFORMATION.

Not applicable.

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ITEM 6. EXHIBITS.

The following is an index to all exhibits including (i) those filed with this Quarterly Report on Form 10-Q and (ii) those incorporated by reference herein:

Exhibit No.		Description		Method of Filing
10.1	Second Amended and Restated Credit Agreement dated as of June 29, 2021, by and among Bank of America, N.A., as administrative agent, Wells Fargo Bank, National Association, Truist Bank, and PNC Bank, National Association, as syndication agents, BofA Securities, Inc. and Wells Fargo Securities, LLC, as joint bookrunners, and BofA Securities, Inc., Wells Fargo Securities, LLC, Truist Bank and PNC Capital Markets LLC, as joint lead arrangers and the lenders party thereto		Incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on July 2, 2021.
31.1	Certification of Chief Executive Officer pursuant to rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed herewith
31.2	Certification of Chief Financial Officer pursuant to rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002		Filed herewith
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Filed herewith
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002		Filed herewith
101.INS	XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.		Filed herewith
101.SCH	Inline XBRL Taxonomy Extension Schema Document		Filed herewith
101.CAL	Inline XBRL Taxonomy Extension Calculation Document		Filed herewith
101.DEF	Inline XBRL Taxonomy Extension Definitions Document		Filed herewith
101.LAB	Inline XBRL Taxonomy Extension Labels Document		Filed herewith
101.PRE	Inline XBRL Taxonomy Extension Presentation Document		Filed herewith
104	Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)		Filed herewith

62

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

	ACADIA REALTY TRUST
	(Registrant)
By:	/s/ Kenneth F. Bernstein
	Kenneth F. Bernstein
	Chief Executive Officer,
	President and Trustee
By:	/s/ John Gottfried
	John Gottfried
	Senior Vice President and
	Chief Financial Officer
By:	/s/ Richard Hartmann
	Richard Hartmann
	Senior Vice President and
	Chief Accounting Officer

Dated: July 29, 2021

63

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO RULE 13a - 14(a)

(SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002)

I, Kenneth F. Bernstein, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Acadia Realty Trust;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of 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 officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5.The registrant's other certifying officer 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.

/s/ Kenneth F. Bernstein

Kenneth F. Bernstein

President and Chief Executive Officer

July 29, 2021

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO RULE 13a - 14(a)

(SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002)

I, John Gottfried, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Acadia Realty Trust;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of 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 officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5.The registrant's other certifying officer 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.

/s/ John Gottfried

John Gottfried

Senior Vice President and

Chief Financial Officer

July 29, 2021

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350

(SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)

In connection with the Quarterly Report on Form 10-Q of Acadia Realty Trust (the “Company”) for the quarter ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kenneth F. Bernstein, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

/s/ Kenneth F. Bernstein

Kenneth F. Bernstein

President and Chief Executive Officer

July 29, 2021

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350

(SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)

In connection with the Quarterly Report on Form 10-Q of Acadia Realty Trust (the “Company”) for the quarter ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John Gottfried, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

/s/ John Gottfried

John Gottfried

Senior Vice President and

Chief Financial Officer

July 29, 2021

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 23, 2021
Cover [Abstract]
Entity Registrant Name	ACADIA REALTY TRUST
Entity Central Index Key	0000899629
Current Fiscal Year End Date	--12-31
Trading Symbol	AKR
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		88,433,959
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	001-12002
Entity Tax Identification Number	23-2715194
Entity Address, Address Line One	411 THEODORE FREMD AVENUE
Entity Address, Address Line Two	SUITE 300
Entity Address, City or Town	RYE
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10580
City Area Code	914
Local Phone Number	288-8100
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common shares of beneficial interest, par value $0.001 per share
Security Exchange Name	NYSE
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	MD

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
ASSETS
Operating real estate, net	$ 3,201,172	$ 3,260,139
Real estate under development	217,620	247,349
Net investments in real estate	3,418,792	3,507,488
Notes receivable, net	117,280	101,450
Investments in and advances to unconsolidated affiliates	258,063	249,807
Other assets, net	159,592	173,809
Right-of-use assets - operating leases, net	42,398	76,268
Cash and cash equivalents	34,645	19,232
Restricted cash	15,094	14,692
Rents receivable, net	43,748	44,136
Total assets	4,089,612	4,186,882
LIABILITIES
Mortgage and other notes payable, net	1,162,617	1,204,581
Unsecured notes payable, net	440,088	420,858
Unsecured line of credit	61,405	138,400
Accounts payable and other liabilities	239,056	269,911
Lease liability - operating leases, net	40,861	88,816
Dividends and distributions payable	14,339	147
Distributions in excess of income from, and investments in, unconsolidated affiliates	14,896	15,616
Total liabilities	1,973,262	2,138,329
Commitments and contingencies
Acadia Shareholders' Equity
Common shares, $0.001 par value, authorized 200,000,000 shares, issued and outstanding 88,419,303 and 86,268,303 shares, respectively	88	86
Additional paid-in capital	1,730,686	1,683,165
Accumulated other comprehensive loss	(47,909)	(74,891)
Distributions in excess of accumulated earnings	(184,174)	(167,046)
Total Acadia shareholders’ equity	1,498,691	1,441,314
Noncontrolling interests	617,659	607,239
Total equity	2,116,350	2,048,553
Total liabilities and equity	$ 4,089,612	$ 4,186,882

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Common shares, par value (in dollars per share)	$ 0.001	$ 0.001
Common shares, authorized (in shares)	200,000,000	200,000,000
Common shares, issued (in shares)	88,419,303	86,268,303
Common shares, outstanding (in shares)	88,419,303	86,268,303

XML

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues	$ 74,660	$ 63,773	$ 144,054	$ 135,193
Operating expenses
Depreciation and amortization	31,345	33,793	62,735	67,170
General and administrative	10,671	8,720	19,667	17,790
Real estate taxes	12,504	10,697	23,966	21,144
Property operating	12,890	16,806	26,367	30,126
Impairment charges	0	0	0	51,549
Total operating expenses	67,410	70,016	132,735	187,779
Gain on disposition of properties	5,909	485	10,521	485
Operating income (loss)	13,159	(5,758)	21,840	(52,101)
Equity in earnings (losses) of unconsolidated affiliates	1,106	(786)	3,369	469
Interest and other income	2,054	2,095	3,754	5,024
Realized and unrealized holding gains on investments and other	2,711	87,811	9,218	87,281
Interest expense	(17,605)	(18,319)	(34,746)	(36,621)
Income from continuing operations before income taxes	1,425	65,043	3,435	4,052
Income tax (provision) benefit	(194)	(137)	(344)	815
Net (loss) income	1,231	64,906	3,091	4,867
Net loss (income) attributable to noncontrolling interests	2,687	(45,496)	5,989	6,129
Net (loss) income attributable to Acadia	$ 3,918	$ 19,410	$ 9,080	$ 10,996
Basic and diluted earnings per share	$ 0.04	$ 0.22	$ 0.10	$ 0.12
Rental Income
Revenues	$ 73,666	$ 62,639	$ 140,871	$ 133,096
Other
Revenues	$ 994	$ 1,134	$ 3,183	$ 2,097

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 1,231	$ 64,906	$ 3,091	$ 4,867
Other comprehensive (loss) income:
Unrealized (loss) gain on valuation of swap agreements	(10,073)	(8,621)	23,483	(83,395)
Reclassification of realized interest on swap agreements	5,324	3,115	10,641	4,092
Other comprehensive (loss) income	(4,749)	(5,506)	34,124	(79,303)
Comprehensive (loss) income	(3,518)	59,400	37,215	(74,436)
Comprehensive loss (income) attributable to noncontrolling interests	1,489	44,484	1,153	26,398
Comprehensive (loss) income attributable to Acadia	$ (2,029)	$ 14,916	$ 36,062	$ (48,038)

XML

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect of Change in Accounting Principle	Common Shares	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions in Excess of Accumulated Earnings	Distributions in Excess of Accumulated Earnings Cumulative Effect of Change in Accounting Principle	Total Common Shareholders' Equity	Total Common Shareholders' Equity Cumulative Effect of Change in Accounting Principle	Noncontrolling Interests		Noncontrolling Interests Cumulative Effect of Change in Accounting Principle
Balance at Dec. 31, 2019	$ 2,186,965		$ 87	$ 1,706,357	$ (31,175)	$ (132,961)		$ 1,542,308		$ 644,657
Balance (in Shares) at Dec. 31, 2019			87,050
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of Common Shares	$ (22,400)
Repurchase of Common Shares (in shares)	(1,219,065)
Balance at Mar. 31, 2020	$ 2,011,560		$ 86	1,686,794	(85,715)	(166,701)		1,434,464		577,096
Balance (in Shares) at Mar. 31, 2020			85,990
Balance at Dec. 31, 2019	2,186,965		$ 87	1,706,357	(31,175)	(132,961)		1,542,308		644,657
Balance (in Shares) at Dec. 31, 2019			87,050
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	0		$ 0	6,544	0	0		6,544		(6,544)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares)			408
Repurchase of Common Shares	(22,386)		$ (1)	(22,385)	0	0		(22,386)		0
Repurchase of Common Shares (in shares)			(1,219)
Acquisition of noncontroling interest	588									588
Dividends/distributions declared	(26,909)					(24,937)		(24,937)		(1,972)
Employee and trustee stock compensation, net	6,136		$ 0	346	0	0		346		5,790
Employee and trustee stock compensation, net (in Shares)			26
Noncontrolling interest distributions	(4,536)									(4,536)
Noncontrolling interest contributions	28,309									28,309
Comprehensive income (loss)	(74,436)				(59,034)	10,996		(48,038)		(26,398)
Reallocation of noncontrolling interests	0			2,144	0	0		2,144		(2,144)	[1]
Balance at Jun. 30, 2020	2,093,331		$ 86	1,693,006	(90,209)	(147,291)		1,455,592		637,739
Balance (in Shares) at Jun. 30, 2020			86,265
Balance at Dec. 31, 2019	2,186,965		$ 87	1,706,357	(31,175)	(132,961)		1,542,308		644,657
Balance (in Shares) at Dec. 31, 2019			87,050
Balance at Dec. 31, 2020	$ 2,048,553	$ (400)	$ 86	1,683,165	(74,891)	(167,046)	$ (389)	1,441,314	$ (389)	607,239		$ (11)
Balance (in Shares) at Dec. 31, 2020	86,268,303		86,269
Balance at Mar. 31, 2020	$ 2,011,560		$ 86	1,686,794	(85,715)	(166,701)		1,434,464		577,096
Balance (in Shares) at Mar. 31, 2020			85,990
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	0		$ 0	4,072	0	0		4,072		(4,072)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares)			260
Repurchase of Common Shares	(34)		$ 0	(34)	0	0		(34)		0
Repurchase of Common Shares (in shares)			0
Acquisition of noncontroling interest	588									588
Dividends/distributions declared	(123)									(123)
Employee and trustee stock compensation, net	2,317		$ 0	175	0	0		175		2,142
Employee and trustee stock compensation, net (in Shares)			15
Noncontrolling interest distributions	(1,418)									(1,418)
Noncontrolling interest contributions	21,041									21,041
Comprehensive income (loss)	59,400				(4,494)	19,410		14,916		44,484
Reallocation of noncontrolling interests	0			1,999	0	0		1,999		(1,999)	[1]
Balance at Jun. 30, 2020	2,093,331		$ 86	1,693,006	(90,209)	(147,291)		1,455,592		637,739
Balance (in Shares) at Jun. 30, 2020			86,265
Balance at Dec. 31, 2020	$ 2,048,553	$ (400)	$ 86	1,683,165	(74,891)	(167,046)	$ (389)	1,441,314	$ (389)	607,239		$ (11)
Balance (in Shares) at Dec. 31, 2020	86,268,303		86,269
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	$ 0		$ 0	409	0	0		409		(409)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares)			26
Issuance of Common Shares	$ 45,677		$ 2	45,675	0	0		45,677		0
Issuance of Common Shares (in Shares)			2,072
Repurchase of Common Shares (in shares)	0
Dividends/distributions declared	$ (28,308)					(26,208)		(26,208)		(2,100)
Employee and trustee stock compensation, net	7,135		$ 0	687	0	0		687		6,448
Employee and trustee stock compensation, net (in Shares)			52
Noncontrolling interest distributions	(11,031)									(11,031)
Noncontrolling interest contributions	17,109									17,109
Comprehensive income (loss)	37,215				26,982	9,080		36,062		1,153
Reallocation of noncontrolling interests	0			750	0	0		750		(750)	[1]
Balance at Jun. 30, 2021	$ 2,116,350		$ 88	1,730,686	(47,909)	(184,174)		1,498,691		617,659
Balance (in Shares) at Jun. 30, 2021	88,419,303		88,419
Balance at Mar. 31, 2021	$ 2,084,369		$ 86	1,683,552	(41,962)	(174,829)		1,466,847		617,522
Balance (in Shares) at Mar. 31, 2021			86,302
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	0		$ 0	115	0	0		115		(115)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership (in Shares)			7
Issuance of Common Shares	45,677		$ 2	45,675	0	0		45,677		0
Issuance of Common Shares (in Shares)			2,072
Dividends/distributions declared	(14,315)		$ 0	0	0	(13,263)		(13,263)		(1,052)
Employee and trustee stock compensation, net	2,624		$ 0	225	0	0		225		2,399
Employee and trustee stock compensation, net (in Shares)			38
Noncontrolling interest distributions	(4,355)									(4,355)
Noncontrolling interest contributions	5,868									5,868
Comprehensive income (loss)	(3,518)				(5,947)	3,918		(2,029)		(1,489)
Reallocation of noncontrolling interests	0			1,119				1,119		(1,119)	[1]
Balance at Jun. 30, 2021	$ 2,116,350		$ 88	$ 1,730,686	$ (47,909)	$ (184,174)		$ 1,498,691		$ 617,659
Balance (in Shares) at Jun. 30, 2021	88,419,303		88,419

[1] Adjustment reflects the difference between the fair value of the consideration received or paid and the book value of the Common Shares, Common OP Units, Preferred OP Units, and LTIP Units involving changes in ownership.

XML

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Stockholders Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 0.15	$ 0	$ 0.30	$ 0.29

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 1,231	$ 64,906	$ 3,091	$ 4,867
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			62,735	67,170
Straight-line rents			(2,765)	(2,888)
Non-cash lease expense			2,066	1,368
Net unrealized holding gains on investments			(8,565)	(64,937)
Distributions of operating income from unconsolidated affiliates			1,387	2,206
Equity in earnings of unconsolidated affiliates	(1,106)	786	(3,369)	(469)
Stock compensation expense			7,135	6,136
Amortization of financing costs			2,546	2,920
Impairment charges	0	0	0	51,549
Gain on disposition of properties	(5,909)	(485)	(10,521)	(485)
Allowance for credit loss			1,238	9,682
Termination of ground lease			(3,615)	0
Adjustments to straight-line rent reserves			511	6,493
Other, net			(4,127)	(2,780)
Changes in assets and liabilities:
Other liabilities			3,114	(6,684)
Lease liability - operating leases			(1,533)	(807)
Prepaid expenses and other assets			(487)	(4,213)
Rents receivable			2,801	(22,290)
Accounts payable and accrued expenses			(609)	12,222
Net cash provided by operating activities			51,033	59,060
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of real estate			0	(21,208)
Development, construction and property improvement costs			(16,620)	(21,093)
Proceeds from the disposition of properties, net			63,901	13,925
Investments in and advances to unconsolidated affiliates and other			(3,976)	(3,270)
Return of capital from unconsolidated affiliates and other			7,717	7,151
Issuance of notes receivable			(15,995)	(59,000)
Return (payment) of deposits for properties under contract			(1,000)	187
Payment of deferred leasing costs			(3,080)	(4,885)
Change in control of previously unconsolidated affiliate			0	950
Net cash provided by (used in) investing activities			30,947	(87,243)
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on mortgage and other notes			(52,408)	(14,360)
Principal payments on unsecured debt			(102,800)	(69,930)
Proceeds received on mortgage and other notes			8,818	3,340
Proceeds from unsecured debt			49,295	181,700
Payments of finance lease obligations			0	(833)
Proceeds from the sale (repurchase) of Common Shares			45,675	(22,386)
Capital contributions from noncontrolling interests			17,109	28,309
Distributions to noncontrolling interests			(12,202)	(8,178)
Dividends paid to Common Shareholders			(12,945)	(50,182)
Deferred financing and other costs			(6,707)	(960)
Net cash (used in) provided by financing activities			(66,165)	46,520
Increase in cash and restricted cash			15,815	18,337
Cash of $19,232 and $15,845 and restricted cash of $14,692 and $14,165, respectively, beginning of period			33,924	30,010	$ 30,010
Cash of $34,645 and $34,273 and restricted cash of $15,094 and $14,074, respectively, end of period	$ 49,739	$ 48,347	49,739	48,347	$ 33,924
Supplemental disclosure of cash flow information
Cash paid during the period for interest, net of capitalized interest of $1,832 and $4,656 respectively			20,666	26,558
Cash paid for income taxes, net of refunds			344	219
Supplemental disclosure of non-cash investing and financing activities
Right-of-use, assets operating leases modified in exchange for operating lease liabilities			412	0
Assumption of accounts payable and accrued expenses through acquisition of real estate			0	116
Distribution declared and payable on July 15, 2021 and 2020, respectively			14,314	123
Right-of-use assets, finance leases obtained in exchange for assets under capital lease			0	(70,427)
Right-of-use assets, operating leases exchanged for operating lease liabilities			0	1,432
Change in control of previously unconsolidated (consolidated) investment
Increase in real estate			0	(135,190)
Decrease in investments in and advances to unconsolidated affiliates			0	96,816
Change in other assets and liabilities			0	1,238
Acquisition of noncontrolling interest asset			0	(588)
Decrease in notes receivable			0	38,674
Increase in cash and restricted cash upon change of control			$ 0	$ 950

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Statement Of Cash Flows [Abstract]
Cash and cash equivalents, beginning balance	$ 19,232	$ 15,845
Cash and cash equivalents, ending balance	34,645	34,273
Restricted cash, beginning balance	14,692	14,165
Restricted cash, ending balance	15,094	14,074
Cash paid for capitalized interest	$ 1,832	$ 4,656

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Organization, Basis of Presentation and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Organization, Basis of Presentation and Summary of Significant Accounting Policies

1. Organization, Basis of Presentation and Summary of Significant Accounting Policies

Organization

The Company is a fully-integrated equity REIT focused on the ownership, acquisition, development, and management of retail properties located primarily in high-barrier-to-entry, supply-constrained, densely-populated metropolitan areas in the United States.

All of the Company’s assets are held by, and all of its operations are conducted through, Acadia Realty Limited Partnership (the “Operating Partnership”) and entities in which the Operating Partnership owns an interest. As of June 30, 2021 and December 31, 2020, the Company controlled approximately 95% of the Operating Partnership as the sole general partner and is entitled to share, in proportion to its percentage interest, in the cash distributions and profits and losses of the Operating Partnership. The limited partners primarily represent entities or individuals that contributed their interests in certain properties or entities to the Operating Partnership in exchange for common or preferred units of limited partnership interest (“Common OP Units” or “Preferred OP Units”) and employees who have been awarded restricted Common OP Units (“LTIP Units”) as long-term incentive compensation (Note 13). Limited partners holding Common OP and LTIP Units are generally entitled to exchange their units on a one-for-one basis for common shares of beneficial interest, par value $0.001 per share, of the Company (“Common Shares”). This structure is referred to as an umbrella partnership REIT or “UPREIT.”

As of June 30, 2021, the Company has ownership interests in 130 properties within its core portfolio, which consist of those properties either 100% owned, or partially owned through joint venture interests, by the Operating Partnership, or subsidiaries thereof, not including those properties owned through its funds (“Core Portfolio”). The Company also has ownership interests in 50 properties within its opportunity funds, Acadia Strategic Opportunity Fund II, LLC (“Fund II”), Acadia Strategic Opportunity Fund III LLC (“Fund III”), Acadia Strategic Opportunity Fund IV LLC (“Fund IV”), and Acadia Strategic Opportunity Fund V LLC (“Fund V” and, collectively with Fund II, Fund III and Fund IV, the “Funds”). The 180 Core Portfolio and Fund properties primarily consist of street and urban retail and suburban shopping centers. In addition, the Company, together with the investors in the Funds, invested in operating companies through Acadia Mervyn Investors I, LLC (“Mervyns I,” which was liquidated in 2018) and Acadia Mervyn Investors II, LLC (“Mervyns II”), all on a non-recourse basis. The Company consolidates the Funds as it has (i) the power to direct the activities that most significantly impact the Funds’ economic performance, (ii) is obligated to absorb the Funds’ losses and (iii) has the right to receive benefits from the Funds that could potentially be significant.

The Operating Partnership is the sole general partner or managing member of the Funds and Mervyns II and earns fees or priority distributions for asset management, property management, construction, development, leasing, and legal services. Cash flows from the Funds and Mervyns II are distributed pro-rata to their respective partners and members (including the Operating Partnership) until each receives a certain cumulative return (“Preferred Return”) and the return of all capital contributions. Thereafter, remaining cash flow is distributed 20% to the Operating Partnership (“Promote”) and 80% to the partners or members (including the Operating Partnership). All transactions between the Funds and the Operating Partnership have been eliminated in consolidation.

The following table summarizes the general terms and Operating Partnership’s equity interests in the Funds and Mervyns II (dollars in millions):

Entity	Formation Date	Operating Partnership Share of Capital			Capital Called as of June 30, 2021 (b)		Unfunded Commitment (b, c)		Equity Interest Held By Operating Partnership (a)			Preferred Return			Total Distributions as of June 30, 2021 (b, c)
Fund II and Mervyns II (c)	6/2004		28.33	%	$	373.4	$	11.9		28.33	%		8	%	$	169.8
Fund III	5/2007		24.54	%		448.1		1.9		24.54	%		6	%		568.8
Fund IV	5/2012		23.12	%		488.1		41.9		23.12	%		6	%		193.1
Fund V (d)	8/2016		20.10	%		217.1		302.9		20.10	%		6	%		36.9

(a)Amount represents the current economic ownership at June 30, 2021, which could differ from the stated legal ownership based upon the cumulative preferred returns of the respective Fund.

(b)Represents the total for the Funds, including the Operating Partnership and noncontrolling interests’ shares.

(c)During August 2020, a recallable distribution of $15.7 million was made by Mervyn’s II to its investors, of which $4.5 million was the Company’s share. During the first half of 2021, Mervyn’s II recalled $3.8 million of the $15.7 million of which the Company's share was $1.1 million.

(d)As of April 8, 2021, Fund V's investment period was extended to August 25, 2022.

Basis of Presentation

Segments

At June 30, 2021, the Company had three reportable operating segments: Core Portfolio, Funds and Structured Financing. The Company’s chief operating decision maker may review operational and financial data on a property-level basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital. 

Principles of Consolidation

The interim consolidated financial statements include the consolidated accounts of the Company and its investments in partnerships and limited liability companies in which the Company has control in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810 “Consolidation” (“ASC Topic 810”). The ownership interests of other investors in these entities are recorded as noncontrolling interests. All significant intercompany balances and transactions have been eliminated in consolidation. Investments in entities for which the Company has the ability to exercise significant influence over, but does not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, the Company’s share of the earnings (or losses) of these entities are included in consolidated net income or loss.

The interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the full fiscal year. The information furnished in the accompanying consolidated financial statements reflects all adjustments that, in the opinion of management, are necessary for a fair presentation of the aforementioned consolidated financial statements for the interim periods. Such adjustments consisted of normal recurring items, with the exception of adjustments due to the adoption of the new credit loss standard and impairment.

These interim consolidated financial statements should be read in conjunction with the Company’s 2020 Annual Report on Form 10-K, as filed with the SEC on February 22, 2021.

Reclassifications

Certain prior year amounts on the Company’s consolidated balance sheet at December 31, 2020 with regard to Mortgage and other notes payable, net and Unsecured notes payable, net have been reclassified to conform to the current period presentation. In addition, certain prior year amounts in the Company’s statement of cash flows for the six months ended June 30, 2020 with regard to Right-of-use assets – operating leases, lease liabilities – operating leases and credit losses have been reclassified to conform to the current period presentation. These reclassifications had no material effect on the reported results of operations, financial condition or cash flows.

Use of Estimates

GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the interim consolidated financial statements and accompanying notes. The most significant assumptions and estimates relate to the valuation of real estate, depreciable lives, revenue recognition and the collectability of notes receivable and rents receivable. Application of these estimates and assumptions requires the exercise of judgment as to future uncertainties and, as a result, actual results could differ from these estimates.

Recently Adopted Accounting and Reporting Guidance

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes. The amendments in this Update provide guidance for interim period and intra period tax accounting; provide tax accounting guidance for foreign subsidiaries; require that an entity recognize a franchise (or similar) tax that is partially based on income as an income-based tax and account for any incremental amount incurred as a non-income-based tax; as well as other changes to tax accounting. This ASU is effective for fiscal years beginning after December 15, 2020. As a REIT, the Company usually does not have significant income taxes. Accordingly, the implementation of this guidance did not have a material effect on the Company’s consolidated financial statements.

During October 2020, the SEC issued new rules modernizing certain Regulation S-K disclosure requirements. The final rule is intended to improve the readability of disclosures, reduce repetition, and eliminate immaterial information, thereby simplifying compliance for registrants and making disclosures more meaningful for investors. These changes were effective for all filings on or after November 7, 2020. The Company has made minor disclosure changes in this Report and to the "Business" and "Risk Factors" sections of the annual report on Form 10-K for 2020.

On April 8, 2020, the FASB issued a Q&A allowing for reporting entities to make an accounting policy election to account for lease concessions related to the effects of COVID-19 consistent with how those concessions would be accounted for under Topic 842, which is as though the enforceable rights and obligations for those concessions existed regardless of whether those enforceable rights and obligations for the concessions explicitly exist in the contract. This election is available for concessions that result in the total cash flows required by the modified contract being substantially the same or less than total cash flows required by the original contract. Effective April 1, 2020, the Company has made the accounting policy election noted above. The Company entered into concession agreements as lessor during the six months ended June 30, 2021 (Note 11). The Company may grant further concessions during subsequent periods.

In January 2020, the FASB issued ASU 2020-01 Investments—Equity securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions Between Topic 321, Topic 323, and Topic 815. The amendments in this Update affect all entities that apply the guidance in Topics 321, 323, and 815 and (i) elect to apply the measurement alternative or (ii) enter into a forward contract or purchase an option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting. This ASU is effective for fiscal years beginning after December 15, 2020. Currently, the Company does not apply the measurement alternative and does not have any such forward contracts or purchase options. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

In October 2020, the FASB issued ASU 2020-08 Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs. The amendments in this update clarify that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-35-33 for each reporting period. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early application is not permitted. Currently, the Company does not have any such callable debt securities. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In August 2020, the FASB issued ASU 2020-06—Debt with conversion and other options (Subtopic 470-20) and derivatives and hedging—contracts in entity's own equity (Subtopic 815-40)—accounting for convertible instruments and contracts in an entity's own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The ASU simplifies accounting for convertible instruments and simplifies the diluted earnings per share (EPS) calculation in certain areas. This ASU is effective for fiscal years beginning after December 15, 2021. Currently, the Company does not have any such debt instruments and, as a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In January 2021, the FASB issued ASU 2021-01 Reference Rate Reform (Topic 848) which modifies ASC 848, which was intended to provide relief related to “contracts and transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform.” ASU 2021-01 expands the scope of ASC 848 to include all affected derivatives and give reporting entities the ability to apply certain aspects of the contract modification and hedge accounting expedients to derivative contracts affected by the discounting transition. ASU 2021-01 also adds implementation guidance to clarify which optional expedients in ASC 848 may be applied to derivative instruments that do not reference LIBOR or a reference rate that is expected to be discontinued, but that are being modified as a result of the discounting transition. Currently, the Company does not anticipate the need to modify any existing debt agreements as a result of reference rate reform in the current year. If any modification is executed as a result of reference rate reform, the Company will elect the optional practical expedient under ASU 2020-04 and 2021-01, which allows entities to account for the modification as if the modification was not substantial. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In May 2021, the FASB issued ASU 2021-04 Modification of equity-classified written call options — Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options — to codify how an issuer should account for modifications made to equity-classified written call options (a warrant to purchase the issuer’s common stock). The guidance in the ASU requires the issuer to treat a modification of an equity-classified warrant that does not cause the warrant to become liability-classified as an exchange whether structured as an amendment or reissuance and is effective for all periods beginning after December 15, 2021 with early application permitted. The Company does not currently have any outstanding equity awards with written call options. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

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Real Estate

6 Months Ended

Jun. 30, 2021

Acquisition And Disposition Of Properties And Discontinued Operations [Abstract]

Real Estate

2. Real Estate

The Company’s consolidated real estate is comprised of the following for the periods presented (in thousands):

	June 30, 2021			December 31, 2020
Land	$	761,029		$	776,275
Buildings and improvements		2,825,549			2,848,781
Tenant improvements		204,542			191,046
Construction in progress		9,427			5,751
Right-of-use assets - finance leases (Note 11)		25,086			25,086
Total		3,825,633			3,846,939
Less: Accumulated depreciation and amortization		(624,461	)		(586,800	)
Operating real estate, net		3,201,172			3,260,139
Real estate under development		217,620			247,349
Net investments in real estate	$	3,418,792		$	3,507,488

Acquisitions and Conversions

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company acquired the following consolidated retail properties and other real estate investments (dollars in thousands):

Property and Location	Percent Acquired	Date of Acquisition	Purchase Price
2021 Acquisitions
None
2020 Acquisitions and Conversions
Core
Soho Acquisitions - 37 Greene Street - New York, NY	100%	Jan 9, 2020	$	15,689
917 W. Armitage - Chicago, IL	100%	Feb 13, 2020		3,515
Town Center - Wilmington, DE (Conversion) (Note 4)	100%	Apr 1, 2020		138,939
Subtotal Core				158,143
Fund IV
230-240 W. Broughton Street - Savannah, GA	100%	May 26, 2020		13,219
102 E. Broughton Street - Savannah, GA	100%	May 26, 2020		790
Subtotal Fund IV				14,009
Total 2020 Acquisitions and Conversions			$	172,152

For the year ended December 31, 2020, the Company capitalized $1.3 million of acquisition costs. No debt was assumed in any of the 2020 Acquisitions and Conversions. Conversions represent notes receivable that were converted to an interest in the underlying collateral in a non-cash transaction.

Purchase Price Allocations

The purchase prices for the 2020 Acquisitions and Conversions were allocated to the acquired assets and assumed liabilities based on their estimated fair values at the dates of acquisition. The following table summarizes the allocation of the purchase price of properties acquired during the periods presented (in thousands):

	Six Months Ended June 30, 2021		Year Ended December 31, 2020
Net Assets Acquired
Land	$	—	$	25,440
Buildings and improvements		—		123,459
Accounts receivable, prepaids and other assets		—		5,770
Acquisition-related intangible assets (Note 6)		—		23,061
Right-of-use asset - Operating lease (Note 11)		—		234
Acquisition-related intangible liabilities (Note 6)		—		(4,569	)
Lease liability - Operating lease (Note 11)		—		(234	)
Accounts payable and other liabilities		—		(1,009	)
Net assets acquired	$	—	$	172,152
Consideration
Cash	$	—	$	21,208
Conversion of note receivable		—		38,674
Conversion of accrued interest		—		1,995
Liabilities assumed		—		116
Existing interest in previously unconsolidated investment		—		109,571
Acquisition of noncontrolling interests		—		588
Total consideration	$	—	$	172,152

Dispositions

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company disposed of the following consolidated properties and other real estate investments (in thousands):

Property and Location	Owner	Date Sold	Sale Price		Gain on Sale
2021 Dispositions
60 Orange St - Bloomfield, NJ	Core	Jan 29, 2021	$	16,400	$	4,612
654 Broadway - New York, NY	Fund III	May 19, 2021		10,000		111
NE Grocer Portfolio (Selected Assets) - Maine	Fund IV	Jun 18, 2021		39,925		5,064
Total 2021 Dispositions			$	66,325	$	9,787
2020 Dispositions
163 Highland Ave. (Easement) - Needham, MA	Core	Mar 19, 2020	$	238	$	88
Colonie Plaza - Albany, NY	Fund IV	Apr 13, 2020		15,250		485
Airport Mall (Parcel) - Bangor, ME	Fund IV	Sep 10, 2020		400		24
Cortlandt Crossing (Sewer Project and Retention Pond) - Cortlandt, NY	Fund III	Nov 30, 2020		6,325		—
Union Township (Parcel) - New Castle, PA	Core	Dec 11, 2020		200		86
Total 2020 Dispositions			$	22,413	$	683

The aggregate rental revenue, expenses and pre-tax income reported within continuing operations for the aforementioned consolidated properties that were sold as well as the lease that was terminated (Note 11) during the six months ended June 30, 2021 and year ended December 31, 2020 were as follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Revenues	$	1,557		$	2,631		$	3,570		$	5,468
Expenses		(1,979	)		(2,513	)		(3,863	)		(5,397	)
Gain on disposition of properties		5,909			485			10,521			485
Net income attributable to noncontrolling interests		(4,218	)		(395	)		(4,320	)		(307	)
Net income attributable to Acadia	$	1,269		$	208		$	5,908		$	249

Real Estate Under Development and Construction in Progress

Real estate under development represents the Company’s consolidated properties that have not yet been placed into service while undergoing substantial development or construction.

Development activity for the Company’s consolidated properties comprised the following during the periods presented (dollars in thousands):

	January 1, 2021				Six Months Ended June 30, 2021						June 30, 2021
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	63,875	$	—	$	1,222	$	23,213		—	$	41,884
Fund II		—		74,657		—		984		—		—		75,641
Fund III		1		23,139		—		546		—		1		23,685
Fund IV		2		85,678		—		2,094		11,362		1		76,410
Total		3	$	247,349	$	—	$	4,846	$	34,575		2	$	217,620

	January 1, 2020				Year Ended December 31, 2020						December 31, 2020
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	60,863	$	—	$	3,012	$	—		—	$	63,875
Fund II (a)		—		10,703		66,812		3,612		6,470		—		74,657
Fund III		1		36,240		—		70		13,171		1		23,139
Fund IV (b)		2		145,596		—		1,368		61,286		2		85,678
Total		3	$	253,402	$	66,812	$	8,062	$	80,927		3	$	247,349

a)Transfers in include $33.8 million of non-cash Fund II additions obtained through the conversion of a note receivable (Note 3).

b)Transfers out include impairment charges totaling $16.5 million on two Fund IV development properties (Note 8).

The number of properties in the tables above refers to projects comprising the entire property under development; however, certain projects represent a portion of a property. Core amounts relate to City Center and Fund II amounts relate to the City Point Phase III project.

During the six months ended June 30, 2021, the Company:

placed portions of one Core project, City Center, into service in the first and second quarter of 2021

placed the remainder of one Fund IV project, Paramus, into service in the first quarter of 2021

disposed of building improvements related to one Fund IV project, 110 University Place, in connection with a lease termination in the second quarter of 2021 (Note 11)

During the year ended December 31, 2020, the Company:

placed a portion of one Fund III property, Cortlandt Crossing, into service in the first quarter of 2020

converted, in a non-cash transaction, a note receivable in exchange for construction improvements in the amount of $33.8 million in the fourth quarter of 2020 (Note 3)

recognized impairment charges totaling $16.5 million on two Fund IV properties (Note 8) including 717 N. Michigan Avenue and 110 University Place in the fourth quarter of 2020

placed a portion of one Fund IV property, 146 Geary Street, which was also impaired, into service in the first quarter of 2020 (Note 8)

placed a portion of Fund II’s City Point Phase II into development in the second quarter of 2020

suspended certain development projects due to aforementioned disruptions related to the COVID-19 Pandemic. Substantially all remaining development and redevelopment costs are discretionary and dependent upon the resumption of tenant interest.

Construction in progress pertains to construction activity at the Company’s operating properties that are in service and continue to operate during the construction period.

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Notes Receivable, Net

6 Months Ended

Jun. 30, 2021

Accounts And Notes Receivable Net [Abstract]

Notes Receivable, Net

3. Notes Receivable, Net

The Company’s notes receivable, net are generally collateralized either by the underlying properties or the borrowers’ ownership interests in the entities that own the properties, and were as follows (dollars in thousands):

	June 30,			December 31,			June 30, 2021
Description	2021			2020			Number		Maturity Date	Interest Rate
Core Portfolio (a)	$	112,794		$	96,794			7	Apr 2020 - Dec 2027	4.65% - 9.00%
Fund III		5,306			5,306			1	Jul 2020	18.00%
Total notes receivable		118,100			102,100
Allowance for credit loss		(820	)		(650	)
Notes receivable, net	$	117,280		$	101,450			8

a)Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020.

During the six months ended June 30, 2021, the Company:

issued a new Core Portfolio note for $16.0 million with a stated interest rate of 9% and a maturity date of October 20, 2022 collateralized by a single tenant property in Silver Spring, Maryland on April 20, 2021;

recorded an increase in its allowance for credit loss of approximately $0.2 million primarily attributable to the new loan discussed above.

During the year ended December 31, 2020, the Company:

exchanged its Brandywine Note Receivable of $38.7 million plus accrued interest of $2.0 million for the remaining 24.78% undivided interest in Town Center on April 1, 2020;

recorded credit loss reserves of $0.4 million upon the adoption of ASC 326;

converted $33.8 million balance of a Fund II note receivable for interest in real estate on November 2, 2020. Prior to the exchange, the note had been increased by the interest accrued during 2020 of $0.6 million;

made a Core loan for $54.0 million with an interest rate of 9% structured as a redeemable preferred equity investment in a property at 850 Third Avenue in Brooklyn, New York on January 14, 2020;

issued a new Core Portfolio note for $5.0 million with an interest rate of 8% collateralized by our partner’s 50% share of the LUF (Georgetown) Portfolio (Note 4) in Washington, D.C. effective February 1, 2020; and

recorded additional credit loss reserves of $0.3 million related to new transactions and recent market volatility.

One Core Portfolio note aggregating $21.6 million including accrued interest (exclusive of default interest and other amounts due on the loan that have not been recognized) was in default at June 30, 2021 and December 31, 2020. On April 1, 2020, the loan matured and was not repaid. The Company expects to take appropriate actions to recover the amounts due under the loan, and has issued a reservation of rights letter to the borrowers and guarantor, reserving all of its rights and remedies under the applicable loan documents and otherwise. In addition, one Fund III note receivable aggregating $10.0 million, including accrued interest (exclusive of default interest and other amounts due on the loan that have

not been recognized) matured on July 1, 2020 and was not repaid. The Company has issued the borrower a notice of maturity default. The Company has determined for each of these loans that the collateral is sufficient to cover the loan’s carrying value at June 30, 2021. In addition, there are certain personal guarantees associated with each of these notes receivable.

The Company monitors the credit quality of its notes receivable on an ongoing basis and considers indicators of credit quality such as loan payment activity, the estimated fair value of the underlying collateral, the seniority of the Company’s loan in relation to other debt secured by the collateral and the prospects of the borrower.

Earnings from these notes and mortgages receivable are reported within the Company’s Structured Financing segment (Note 12).

The Company’s estimated allowance for credit losses related to its Structured Financing segment has been computed for its amortized cost basis in the portfolio, including accrued interest (Note 5), factoring historical loss experience in the United States for similar loans, as adjusted for current conditions, as well as the Company’s expectations related to future economic conditions. Due to the lack of comparability across the Structured Financing portfolio, each loan was evaluated separately. As a result, for non-collateral-dependent loans with a total amortized cost of $97.0 million, inclusive of accrued interest of $8.5 million, an allowance for credit losses has been recorded aggregating $0.8 million at June 30, 2021. For four loans in this portfolio, aggregating $38.4 million, inclusive of accrued interest of $8.8 million at June 30, 2021, the Company has elected to apply a practical expedient in accordance with ASC 326 and did not establish an allowance for credit losses because (i) these loans are collateral-dependent loans, which due to their settlement terms are not expected to be settled in cash but rather by the Company’s possession of the real estate collateral; and (ii) at June 30, 2021, the Company determined that the estimated fair value of the collateral at the expected realization date for these loans was sufficient to cover the carrying value of its investments in these notes receivable. Impairment charges may be required if and when such amounts are estimated to be nonrecoverable upon a realization event, which is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold; however, non-recoverability may also be concluded if it is reasonably certain that all amounts due will not be collected.

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Investments in and Advances to Unconsolidated Affiliates

6 Months Ended

Jun. 30, 2021

Equity Method Investments And Joint Ventures [Abstract]

Investments in and Advances to Unconsolidated Affiliates

4. Investments in and Advances to Unconsolidated Affiliates

The Company accounts for its investments in and advances to unconsolidated affiliates primarily under the equity method of accounting as it has the ability to exercise significant influence, but does not have financial or operating control over the investment, which is maintained by each of the unaffiliated partners who co-invest with the Company. The Company’s investments in and advances to unconsolidated affiliates consist of the following (dollars in thousands):

		Ownership Interest	June 30,		December 31,
Portfolio	Property	June 30, 2021	2021		2020
Core:	840 N. Michigan (a)	88.43%	$	53,869	$	55,863
	Renaissance Portfolio	20%		28,835		29,270
	Gotham Plaza	49%		28,796		28,683
	Georgetown Portfolio	50%		3,796		4,624
	1238 Wisconsin Avenue	80%		3,352		2,571
				118,648		121,011
Mervyns I & II:	KLA/ABS (b)	36.7%		80,956		72,391
Fund III:	Self Storage Management (c)	95%		207		207
Fund IV:	Fund IV Other Portfolio	98.57%		12,327		11,719
	650 Bald Hill Road	90%		11,714		12,550
				24,041		24,269
Fund V:	Family Center at Riverdale (a)	89.42%		12,927		11,824
	Tri-City Plaza	90%		6,904		7,024
	Frederick County Acquisitions	90%		10,895		10,837
				30,726		29,685
Various:	Due from (to) Related Parties			467		363
	Other (d)			3,018		1,881
	Investments in and advances to unconsolidated affiliates		$	258,063	$	249,807
Core:	Crossroads (e)	49%	$	14,896	$	15,616
	Distributions in excess of income from, and investments in, unconsolidated affiliates		$	14,896	$	15,616

a)Represents a tenancy-in-common interest.

b)Includes an interest in Albertsons (at fair value, as described below) (Note 8).

c)Represents a variable interest entity for which the Company was determined not to be the primary beneficiary.

d)Includes cost-method investments in Storage Post, Fifth Wall and other investments.

e)Distributions have exceeded the Company’s investment; however, the Company recognizes a liability balance as it may be required to return distributions to fund future obligations of the entity.

During the six months ended June 30, 2021, the Company:

monetized $0.8 million at Mervyns II related to distributions from its Investment in Albertsons and recorded a net unrealized holding gain of $8.6 million reflecting the change in fair value of its Investment in Albertsons

on January 4, 2021, Fund V sold two land parcels at its unconsolidated Family Center at Riverdale property for a total of $10.5 million, repaid $7.9 million of the related mortgage and the venture recognized a gain of $3.2 million, of which the Company's share was $0.6 million; and

increased its investment in Fifth Wall by $1.1 million pursuant to its subscription agreement.

During the year ended December 31, 2020, the Company:

exchanged the remaining $38.7 million of Brandywine Notes Receivable (Note 3), plus accrued interest of $2.0 million for the remaining 24.78% interest in Town Center on April 1, 2020, thereby obtaining a 100% controlling interest in the property. The property was then consolidated (Note 2) and the Company recorded the remaining interest in the property investment at the carrying value of the notes;

increased its investment in Fifth Wall by $0.4 million pursuant to its subscription agreement;

impaired $0.4 million of its investment in Fifth Wall (Note 8) during the fourth quarter of 2020, reflecting management’s estimate of fair value at that date;

recorded realized gains at Mervyns II of approximately $22.8 million and $0.4 million, during the second and fourth quarters of 2020, respectively, from its Investment in Albertsons. The realized gains during the second quarter of 2020 resulted from the issuance and distribution of proceeds from a preferred equity investment and a sale of a portion of its investment in an initial public offering of Albertsons, both of which occurred in June 2020;

recorded an unrealized gain of approximately $64.9 million during the second quarter of 2020 at Mervyns II reflecting the initial market value of its ownership of approximately 4.1 million shares (approximately 1% interest) through its Investment in Albertsons, which it has accounted for at fair value following the initial public offering;

recorded an additional net unrealized holding gain of $7.5 million at Mervyns II reflecting the change in fair value of its Investment in Albertsons from the initial public offering through December 31, 2020; and

acquired all of the third-party equity of BSP II at Fund IV, which underlies two properties within Broughton Street Portfolio, for $1.3 million on May 26, 2020, pursuant to the buy-sell provisions of the operating agreement of the Broughton Street Portfolio. These two BSP II properties were consolidated during the second quarter of 2020.

Fees from Unconsolidated Affiliates

The Company earned property management, construction, development, legal and leasing fees from its investments in unconsolidated partnerships totaling $0.1 million for each of the three months ended June 30, 2021 and 2020, and $0.2 million for each of the six months ended June 30, 2021 and 2020, which are included in other revenues in the consolidated statements of income.

In addition, the Company's joint ventures paid to certain unaffiliated partners of its joint ventures, $0.3 million and $0.4 million for the three months ended June 30, 2021 and 2020, respectively, and $0.7 million and $1.4 million for the six months ended June 30, 2021 and 2020, respectively, for leasing commissions, development, management, construction and overhead fees.

Summarized Financial Information of Unconsolidated Affiliates

The following combined and condensed Balance Sheets and Statements of operations, in each period, summarize the financial information of the Company’s investments in unconsolidated affiliates that were held as of June 30, 2021, and accordingly exclude the results of any investments disposed of or consolidated prior to that date (in thousands):

	June 30, 2021		December 31, 2020
Combined and Condensed Balance Sheets
Assets:
Rental property, net	$	556,800	$	563,997
Real estate under development		12,900		14,517
Other assets		63,060		61,969
Total assets	$	632,760	$	640,483
Liabilities and partners’ equity:
Mortgage notes payable	$	507,111	$	512,490
Other liabilities		72,577		74,872
Partners’ equity		53,072		53,121
Total liabilities and partners’ equity	$	632,760	$	640,483
Company's share of accumulated equity	$	100,237	$	100,767
Basis differential		54,320		55,017
Deferred fees, net of portion related to the Company's interest		3,962		3,565
Amounts receivable/payable by the Company		467		363
Investments in and advances to unconsolidated affiliates, net of Company's    share of distributions in excess of income from and investments in    unconsolidated affiliates		158,986		159,712
Investments carried at fair value or cost		84,181		74,479
Company's share of distributions in excess of income from and    investments in unconsolidated affiliates		14,896		15,616
Investments in and advances to unconsolidated affiliates	$	258,063	$	249,807

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Combined and Condensed Statements of Operations
Total revenues	$	19,541		$	16,372		$	36,822		$	36,714
Operating and other expenses		(6,814	)		(6,183	)		(13,033	)		(13,607	)
Interest expense		(4,581	)		(5,014	)		(9,403	)		(10,270	)
Depreciation and amortization		(5,676	)		(6,524	)		(14,477	)		(12,885	)
Gain on disposition of properties (a)		—			—			3,206			—
Net income (loss) attributable to unconsolidated affiliates	$	2,470		$	(1,349	)	$	3,115		$	(48	)
Company’s share of equity in net income (loss) of unconsolidated affiliates	$	1,368		$	(510	)	$	4,066		$	(174	)
Income attributable to unconsolidated affiliates recently sold or consolidated		—			46			—			1,291
Basis differential amortization		(262	)		(322	)		(697	)		(648	)
Company’s equity in earnings (losses) of unconsolidated affiliates	$	1,106		$	(786	)	$	3,369		$	469

a)Represents the gain on the sale of two land parcels by the Family Center at Riverdale on January 4, 2021. 

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Other Assets, Net and Accounts Payable and Other Liabilities

6 Months Ended

Jun. 30, 2021

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Other Assets, Net and Accounts Payable and Other Liabilities

5. Other Assets, Net and Accounts Payable and Other Liabilities

Other assets, net and accounts payable and other liabilities are comprised of the following for the periods presented:

(in thousands)	June 30, 2021			December 31, 2020
Other Assets, Net:
Lease intangibles, net (Note 6)	$	83,722		$	100,732
Deferred charges, net (a)		31,850			30,488
Accrued interest receivable		17,263			13,917
Prepaid expenses		15,507			17,468
Due from seller		3,364			3,682
Income taxes receivable		2,015			2,433
Other receivables		1,904			2,058
Deposits		2,709			1,728
Corporate assets, net		1,257			1,302
Derivative financial instruments (Note 8)		1			1
	$	159,592		$	173,809
(a) Deferred Charges, Net:
Deferred leasing and other costs	$	59,377		$	57,533
Deferred financing costs related to line of credit		9,757			11,341
		69,134			68,874
Accumulated amortization		(37,284	)		(38,386	)
Deferred charges, net	$	31,850		$	30,488
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	$	66,982		$	76,434
Accounts payable and accrued expenses		57,582			53,031
Derivative financial instruments (Note 8)		60,979			90,139
Deferred income		34,928			31,842
Tenant security deposits, escrow and other		12,106			12,178
Lease liability - finance leases, net (Note 11)		6,479			6,287
	$	239,056		$	269,911

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Lease Intangibles

6 Months Ended

Jun. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Lease Intangibles

6. Lease Intangibles

Upon acquisitions of real estate (Note 2), the Company assesses the fair value of acquired assets (including land, buildings and improvements, and identified intangibles such as above- and below-market leases, including below-market options and acquired in-place leases) and assumed liabilities. The lease intangibles are amortized over the remaining terms of the respective leases, including option periods where applicable.

Intangible assets and liabilities are included in Other assets, net and Accounts payable and other liabilities (Note 5) on the consolidated balance sheet and summarized as follows (in thousands):

	June 30, 2021									December 31, 2020
	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Amortizable Intangible Assets
In-place lease intangible assets	$	259,391		$	(179,197	)	$	80,194		$	268,335		$	(171,856	)	$	96,479
Above-market rent		19,115			(15,587	)		3,528			19,188			(14,935	)		4,253
	$	278,506		$	(194,784	)	$	83,722		$	287,523		$	(186,791	)	$	100,732
Amortizable Intangible Liabilities
Below-market rent	$	(157,590	)	$	91,041		$	(66,549	)	$	(164,923	)	$	88,951		$	(75,972	)
Above-market ground lease		(671	)		238			(433	)		(671	)		209			(462	)
	$	(158,261	)	$	91,279		$	(66,982	)	$	(165,594	)	$	89,160		$	(76,434	)

During the six months ended June 30, 2021, the Company did not acquire or assume any intangible assets or liabilities. During the six months ended June 30, 2021, the Company wrote-off in-place lease intangible assets of $8.8 million and below-market rent of $6.5 million related to disposed properties (Note 2).

During the year ended December 31, 2020, the Company acquired in-place lease intangible assets of $21.0 million, above-market rents of $2.0 million, and below-market rents of $4.6 million with weighted-average useful lives of 4.9, 5.8, and 20.2 years, respectively.

Amortization of in-place lease intangible assets is recorded in depreciation and amortization expense and amortization of above-market rent and below-market rent is recorded as a reduction to and increase to rental income, respectively, in the consolidated statements of income. Amortization of above-market ground leases are recorded as a reduction to rent expense in the consolidated statements of income.

The scheduled amortization of acquired lease intangible assets and assumed liabilities as of June 30, 2021 is as follows (in thousands):

Years Ending December 31,	Net Increase in Lease Revenues		Increase to Amortization			Reduction of Rent Expense		Net (Expense) Income
2021 (Remainder)	$	3,205	$	(11,153	)	$	29	$	(7,919	)
2022		5,929		(17,741	)		58		(11,754	)
2023		5,460		(13,134	)		58		(7,616	)
2024		5,106		(9,262	)		58		(4,098	)
2025		4,435		(6,914	)		58		(2,421	)
Thereafter		38,886		(21,990	)		172		17,068
Total	$	63,021	$	(80,194	)	$	433	$	(16,740	)

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Debt

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Debt

7. Debt

A summary of the Company’s consolidated indebtedness is as follows (dollars in thousands):

	Interest Rate at			Carrying Value at
	June 30,	December 31,	Maturity Date at	June 30,	December 31,
	2021	2020	June 30, 2021	2021	2020
Mortgages Payable
Core Fixed Rate	3.88%-5.89%	3.88%-5.89%	Feb 2024 - Apr 2035	$146,642	$147,810
Core Variable Rate - Swapped (a)	3.41%-4.54%	3.41%-4.54%	Jan 2023 - Nov 2028	73,367	80,500
Total Core Mortgages Payable				220,009	228,310
Fund II Variable Rate	LIBOR+3.00% - PRIME+2.00%	LIBOR+3.00% - PRIME+2.00%	Mar 2022 - August 2022	234,110	228,282
Fund II Variable Rate - Swapped (a)	2.88%	2.88%	Nov 2021	18,661	18,803
Total Fund II Mortgages Payable				252,771	247,085
Fund III Variable Rate	LIBOR+2.75%-LIBOR+3.10%	LIBOR+2.75%-LIBOR+3.10%	Jun 2022 - Jul 2022	71,308	71,918
Fund IV Fixed Rate	4.50%	3.40%-4.50%	Oct 2025	1,120	6,726
Fund IV Variable Rate	LIBOR+1.60%-LIBOR+3.40%	LIBOR+1.60%-LIBOR+3.40%	Jul 2021 - Oct 2025	244,087	254,234
Fund IV Variable Rate - Swapped (a)	3.48%-4.61%	3.48%-4.61%	Apr 2022 - Dec 2022	42,549	66,590
Total Fund IV Mortgages and Other Notes Payable				287,756	327,550
Fund V Variable Rate	LIBOR+1.50%-LIBOR+2.20%	LIBOR+1.50%-LIBOR+2.20%	Jul 2021 - Dec 2024	30,261	1,354
Fund V Variable Rate - Swapped (a)	2.43%-4.78%	2.95%-4.78%	Jul 2021 - Dec 2024	304,843	334,323
Total Fund V Mortgages Payable				335,104	335,677
Net unamortized debt issuance costs				(4,828)	(6,507)
Unamortized premium				497	548
Total Mortgages Payable				$1,162,617	$1,204,581
Unsecured Notes Payable
Core Variable Rate Credit Facility		LIBOR+2.55%		$—	$30,000
Core Variable Rate Unsecured    Term Loans - Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2026	400,000	350,000
Total Core Unsecured Notes    Payable				400,000	380,000
Fund II Unsecured Notes Payable	LIBOR+1.65%	LIBOR+1.65%	Sep 2021	40,000	40,000
Fund IV Term Loan/Subscription Facility	LIBOR+1.90%	LIBOR+1.90%	Dec 2021	—	864
Fund V Subscription Facility	LIBOR+1.90%	LIBOR+1.60%	May 2022	4,604	250
Net unamortized debt issuance costs				(4,516)	(256)
Total Unsecured Notes Payable				$440,088	$420,858
Unsecured Line of Credit
Core Unsecured Line of Credit -Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2025	$61,405	$138,400
Total Debt - Fixed Rate (b, c )				$1,053,715	$1,143,152
Total Debt - Variable Rate (d)				619,242	626,902
Total Debt				1,672,957	1,770,054
Net unamortized debt issuance costs				(9,344)	(6,763)
Unamortized premium				497	548
Total Indebtedness				$1,664,110	$1,763,839

a)At June 30, 2021, the stated rates ranged from LIBOR + 1.50% to LIBOR +1.90% for Core variable-rate debt; LIBOR + 1.39% for Fund II variable-rate debt; LIBOR + 2.75% to LIBOR + 3.10% for Fund III variable-rate debt; LIBOR + 1.75% to LIBOR +2.00% for Fund IV variable-rate debt; LIBOR + 1.50% to LIBOR + 2.20% for Fund V variable-rate debt; LIBOR + 1.55% for Core variable-rate unsecured term loans; and LIBOR + 1.40% for Core variable-rate unsecured lines of credit.

b)Includes $900.8 million and $988.6 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented.

c)Fixed-rate debt at June 30, 2021 and December 31, 2020 includes $5.1 million and $3.2 million, respectively of Core swaps that may be used to hedge debt instruments of the Funds.

d)Includes $145.0 million and $139.2 million, respectively, of variable-rate debt that is subject to interest cap agreements.

Credit Facility

Since February 2018 and as subsequently amended, the Company has had a senior unsecured credit facility (the “Credit Facility”) comprised of a $250.0 million senior unsecured revolving credit facility (the “Revolver”) which bore interest at LIBOR + 1.40%, and a $350.0 million senior unsecured term loan (the “Term Loan”) which bore interest at LIBOR + 1.30%. The revolving credit facility was scheduled to mature on March 31, 2022, subject to two six-month extension options, and the $350.0 million Term Loan was scheduled to expire on March 31, 2023.

During June 2021, the Company modified the Credit Facility, providing for a $50.0 million increase in the Revolver and a $50.0 million increase in the term loan. This amendment resulted in borrowing capacity of up to $700.0 million in principal amount, which includes a $300.0 million revolving credit facility maturing on June 29, 2025, subject to two six-month extension options, and a $400.0 million Term Loan expiring on June 29, 2026. In addition, the amendment provides for revisions to the accordion feature, which allows for one or more increases in the revolving credit facility or term loan facility, for a maximum aggregate principal amount not to exceed $900.0 million. The $300.0 million Revolver bears interest at LIBOR + 1.40% and the $400.0 million Term Loan bears interest at LIBOR + 1.55% at June 30, 2021, all of which were swapped to fixed rates. In connection with the amendment to the credit facility, during the second quarter of 2021, the Company (i) capitalized $2.7 million of debt issuance costs associated with the amended Revolver, which are included in deferred financing costs within other assets (Note 5); (ii) capitalized $3.1 million associated with the amended Term Loan, which are included in net unamortized debt issuance costs in the table above; and (iii) expensed $0.1 million of third-party costs associated with the Term Loan.

Mortgages and Other Notes Payable

During the six months ended June 30, 2021, the Company:

extended seven mortgages, five of which were extended for one year with aggregate outstanding balances of $125.3 million at June 30, 2021, one of which was extended for 18 months with an outstanding balance of $25.9 million at June 30, 2021, and one of which was extended for six months with an outstanding balance of $12.0 million at June 30, 2021;

modified the terms of the Fund IV Bridge facility during the second quarter which had an outstanding balance of $79.2 million prior to modification. Fund IV repaid $10.0 million of principal, the maturity date was extended from June 30, 2021 to December 31, 2021, and the interest rate was changed from LIBOR plus 2.0% to LIBOR plus 2.5% with a floor of 0.25%;

modified certain terms of the Fund V subscription line during the first quarter which had an outstanding balance of $4.6 million prior to modification. The maturity date was extended to May 2, 2022 and the interest rate was increased from LIBOR plus 1.60% to LIBOR plus 1.90%;

entered into a swap agreement during the first quarter with a notional value of $16.7 million, for its New Towne Plaza mortgage replacing the existing swap which expired. In addition, the Company terminated two forward-starting interest rate swaps resulting in cash proceeds of approximately $3.4 million (Note 8);

repaid one Core mortgage of $6.7 million in connection with the sale of 60 Orange Street the first quarter and four Fund mortgages in the aggregate amount of $23.5 million in connection with the sale of the properties during the second quarter (Note 2); and

made scheduled principal payments of $4.0 million.

During the year ended December 31, 2020, the Company:

extended the maturity date of a $200.0 million Fund II loan from May 2020 to May 2022. In addition, the Company extended seven Fund mortgages, two of which were extended for one year during the first quarter with aggregate outstanding balances of $46.0 million at December 31, 2020, two of which were extended for one year during the second quarter with an aggregate outstanding balance of $51.3 million at December 31, 2020, one of which was extended for one year during the third quarter with aggregate outstanding balances of $40.0 million at December 31, 2020, and two of which were extended for a minimum of one year during the fourth quarter with aggregate outstanding balances of $88.0 million at December 31, 2020;

modified the terms of one Fund IV $23.8 million mortgage, which had $18.9 million outstanding, in June 2020 to adjust the allowable timing of draws. At closing, an additional $1.0 million was drawn and in July 2020 an additional $0.9 million was drawn. The Company also modified one Fund III and two Fund IV loans aggregating $103.4 million requiring the repayment of $11.5 million; 

entered into two swap agreements in February 2020 each with notional values of $50.0 million, which are not effective until April 2022 and April 2023 and were later terminated in the first quarter of 2021. In July 2020, two previously-executed forward swap agreements took effect with current notional values as of December 31, 2020 of $30.4 million each (Note 8);

repaid one Core mortgage of $26.3 million in connection with the litigation settlement discussed below and one Fund IV mortgage of $11.6 million in connection with the sale of Colonie Plaza in April 2020 (Note 2); and

made scheduled principal payments of $6.1 million.

At June 30, 2021 and December 31, 2020, the Company’s mortgages were collateralized by 37 and 42 properties, respectively, and the related tenant leases. Certain loans are cross-collateralized and contain cross-default provisions. The loan agreements contain customary representations, covenants and events of default. Certain loan agreements require the Company to comply with affirmative and negative covenants, including the maintenance of debt service coverage and leverage ratios. The Company was not in default on any of its loan agreements at June 30, 2021. A portion of the Company’s variable-rate mortgage debt has been effectively fixed through certain cash flow hedge transactions (Note 8).

A mortgage loan collateralized by the property held by Brandywine Holdings in the Core Portfolio, was in default and subject to litigation at December 31, 2019. The loan was originated in June 2006 and had an original principal amount of $26.3 million and a scheduled maturity of July 1, 2016. By maturity, the loan was in default. On October 30, 2020, the Company settled the litigation for approximately $30.0 million resulting in a gain on debt extinguishment of $18.3 million reflected in Realized and unrealized holding gains on investments and other in the consolidated statement of income during the fourth quarter of 2020, of which the Company’s proportionate share was $4.1 million. Upon settlement of this litigation, the Company obtained its partner’s 77.78% noncontrolling interest for nominal consideration, resulting in an adjustment of $15.9 million as a reduction to equity.

Unsecured Notes Payable

Unsecured notes payable for which total availability was $124.6 million and $128.7 million at June 30, 2021 and December 31, 2020, respectively, are comprised of the following:

The outstanding balance of the Core term loan was $400.0 million and $350.0 million at June 30, 2021 and December 31, 2020, respectively. The Company previously entered into swap agreements fixing the rates of the Core term loan balance.

On July 1, 2020, the Company obtained a $30.0 million Core term loan, with an accordion option to increase up to $90.0 million. This term loan was scheduled to mature on June 30, 2021 and bore interest at LIBOR plus 2.55% with a LIBOR floor of 0.75%. The term loan was repaid during June 2021. The outstanding balance at June 30, 2021 and December 31, 2020 was $0 and $30.0 million, respectively.

Fund II has a $40.0 million term loan secured by the real estate assets of City Point Phase II and guaranteed by the Operating Partnership. The outstanding balance of the Fund II term loan was $40.0 million at each of June 30, 2021 and December 31, 2020. There was no availability at each of June 30, 2021 and December 31, 2020.

Fund IV has a $5.0 million subscription line with an outstanding balance and total available credit of $0.0 million and $1.4, respectively at June 30, 2021, reflecting letters of credit of $3.6 million. The outstanding balance and total availability at December 31, 2020 were $0.9 million and $0.5 million, respectively, reflecting letters of credit of $3.6 million.

Fund V has a $150.0 million subscription line collateralized by Fund V’s unfunded capital commitments, and, to the extent of Acadia’s capital commitments, is guaranteed by the Operating Partnership. During the year ended December 31, 2020, the Company modified the $150.0 million Fund V Subscription line and extended the due date from May 2020 to May 2021. In April 2021, the Company modified the subscription line, extending the maturity to May 2022. The outstanding balance and total available credit of the Fund V subscription line was $4.6 and $123.2 million, respectively at June 30, 2021 reflecting outstanding letters of credit of $22.2 million. The outstanding balance and total available credit were $0.3 million and $128.2 million at December 31, 2020, respectively, reflecting outstanding letters of credit of $21.5 million.

Unsecured Revolving Line of Credit

At June 30, 2021 and December 31, 2020, the Company had a total of $230.6 million and $101.1 million available under its Core Revolver, reflecting borrowings of $61.4 million and $138.4 million and letters of credit of $8.0 million and $10.5 million, respectively. At each of June 30, 2021 and December 31, 2020, all of the Core unsecured revolving line of credit was swapped to a fixed rate.

Scheduled Debt Principal Payments

The scheduled principal repayments, without regard to available extension options (described further below), of the Company’s consolidated indebtedness, as of June 30, 2021 are as follows (in thousands):

Year Ending December 31,
2021 (Remainder)	$	212,969
2022		529,299
2023		59,361
2024		212,020
2025		126,732
Thereafter		532,576
		1,672,957
Unamortized premium		497
Net unamortized debt issuance costs		(9,344	)
Total indebtedness	$	1,664,110

The table above does not reflect available extension options (subject to customary conditions) on consolidated debt with balances as of June 30, 2021 of $172.4 million contractually due in 2021, $179.4 million contractually due in 2022, and $41.5 million contractually due in 2023; most for which the Company has available options to extend by up to 12 months and for some an additional 12 months thereafter. However, there can be no assurance that the Company will be able to successfully execute any or all of its available extension options.

See Note 4 for information about liabilities of the Company’s unconsolidated affiliates.

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Financial Instruments and Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments and Fair Value Measurements

8. Financial Instruments and Fair Value Measurements

The fair value of an asset is defined as the exit price, which is the amount that would either be received when an asset is sold or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The guidance establishes a three-tier fair value hierarchy based on the inputs used in measuring fair value. These tiers are: Level 1, for which quoted market prices for identical instruments are available in active markets, such as money market funds, equity securities, and U.S. Treasury securities; Level 2, for which there are inputs other than quoted prices included within Level 1 that are observable for the instrument, such as certain derivative instruments including interest rate caps and interest rate swaps; and Level 3, for financial instruments or other assets/liabilities that do not fall into Level 1 or Level 2 and for which little or no market data exists, therefore requiring the Company to develop its own assumptions.

Items Measured at Fair Value on a Recurring Basis

The methods and assumptions described below were used to estimate the fair value of each class of financial instrument. For significant Level 3 items, the Company has also provided the unobservable inputs along with their weighted-average ranges.

Money Market Funds — The Company has money market funds, which at times have zero balances and are included in Cash and cash equivalents in the consolidated balance sheets, and are comprised of government securities and/or U.S. Treasury bills. These funds were classified as Level 1 as we used quoted prices from active markets to determine their fair values.

Equity Investments –Albertsons became publicly traded during 2020 (Note 4). Upon Albertsons’ IPO, the Company’s Investment in Albertsons has a readily determinable market value (traded on an exchange) and is being accounted for as a Level 1 investment.

Derivative Assets — The Company has derivative assets, which are included in Other assets, net on the consolidated balance sheets, and are comprised of interest rate swaps and caps. The derivative instruments were measured at fair value using readily observable market inputs, such as quotations on interest rates, and were classified as Level 2 as these instruments are custom, over-the-counter contracts with various bank counterparties that are not traded in an active market. See “Derivative Financial Instruments,” below.

Derivative Liabilities — The Company has derivative liabilities, which are included in Accounts payable and other liabilities on the consolidated balance sheets, and are comprised of interest rate swaps. These derivative instruments were measured at fair value using readily observable market inputs, such as quotations on interest rates, and were classified as Level 2 because they are custom, over-the-counter contracts with various bank counterparties that are not traded in an active market. See “Derivative Financial Instruments,” below.

Other than the Investment in Albertsons described above, the Company did not have any transfers into or out of Level 1, Level 2, and Level 3 measurements during the six months ended June 30, 2021 or 2020.

The following table presents the Company’s fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (in thousands):

	June 30, 2021						December 31, 2020
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets
Money market funds	$	—	$	—	$	—	$	—	$	—	$	—
Derivative financial instruments		—		1		—		—		1		—
Investment in Albertsons (Note 4)		80,956		—		—		72,391		—		—
Liabilities
Derivative financial instruments		—		60,979		—		—		90,139		—

In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.

Items Measured at Fair Value on a Nonrecurring Basis (Including Impairment Charges)

During 2020, the Company was impacted by the COVID-19 Pandemic (Note 11), which caused the Company to reduce its holding periods and forecasted operating income at certain properties. As a result, several impairments were recorded. Impairment charges for the periods presented are as follows (in thousands):

					Impairment Charge
Property and Location	Owner	Triggering Event	Level 3 Inputs	Effective Date	Total		Acadia's Share
2021 Impairment Charges
None
2020 Impairment Charges
Cortlandt Crossing, Mohegan Lake, NY	Fund III	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020	$	27,402	$	6,726
654 Broadway, New York, NY	Fund III	Reduced holding period	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,398		1,570
146 Geary Street, San Francisco, CA	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,718		1,553
801 Madison Avenue, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		11,031		2,551
717 N. Michigan Avenue, Chicago, IL	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		17,392		4,021
110 University, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		16,238		3,754
Fifth Wall Investment	Core	Decline in fair value	Projections of: reported fair value of net assets	Dec 31, 2020		419		419
Total 2020 Impairment Charges					$	85,598	$	20,594

Derivative Financial Instruments

The Company had the following interest rate swaps and caps for the periods presented (dollars in thousands):

					Strike Rate								Fair Value
Derivative Instrument	Aggregate Notional Amount		Effective Date	Maturity Date	Low				High			Balance Sheet Location	June 30, 2021			December 31, 2020
Core
Interest Rate Swaps	$	539,898	Dec 2012-Jul 2020	Mar 2022-Jul 2030		1.71	%	—		3.77	%	Other Liabilities	$	(51,255	)	$	(74,990	)
	$	539,898											$	(51,255	)	$	(74,990	)
Fund II
Interest Rate Swap	$	18,661	Oct 2014	Nov 2021		2.88	%	—		2.88	%	Other Liabilities	$	(89	)	$	(219	)
Interest Rate Cap		45,000	Mar 2019	Mar 2022		3.50	%	—		3.50	%	Other Assets		—			—
	$	63,661											$	(89	)	$	(219	)
Fund III
Interest Rate Caps	$	35,970	Jan 2021	Jul 2022		3.00	%	—		3.00	%	Other Assets	$	—		$	—
Fund IV
Interest Rate Swaps	$	42,549	Mar 2017 - Dec 2019	Apr 2022 - Dec 2022		1.48	%	—		4.00	%	Other Liabilities	$	(721	)	$	(1,713	)
Interest Rate Caps		77,400	July 2019 - Dec 2020	Jul 2021 - Dec 2022		3.00	%	—		3.50	%	Other Assets		1			1
	$	119,949											$	(720	)	$	(1,712	)
Fund V
Interest Rate Swaps	$	304,843	Jun 2018-Feb 2021	Feb 2022-Oct 2024		0.23	%	—		2.88	%	Other Liabilities	$	(8,914	)	$	(13,217	)
	$	304,843											$	(8,914	)	$	(13,217	)
Total asset derivatives													$	1		$	1
Total liability derivatives													$	(60,979	)	$	(90,139	)

All of the Company’s derivative instruments have been designated as cash flow hedges and hedge the future cash outflows on variable-rate debt (Note 7). It is estimated that approximately $19.2 million included in Accumulated other comprehensive loss related to derivatives will be reclassified to interest expense within the next twelve months. As of June 30, 2021 and December 31, 2020, no derivatives were designated as fair value hedges or hedges of net investments in foreign operations. Additionally, the Company does not use derivatives for trading or speculative purposes and currently does not have any derivatives that are not designated hedges.

During the first quarter of 2021, the Company terminated two forward swaps with an aggregate notional value of $100.0 million (Note 7) for cash proceeds of $3.4 million. As the hedged forecasted transaction is still expected, amounts deferred in Accumulated other comprehensive loss will be amortized into earnings as a reduction of interest expense over the original term of the swaps beginning in 2022.

Risk Management Objective of Using Derivatives

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of its debt funding and, from time to time, through the use of derivative financial instruments. The Company enters into derivative financial instruments to manage exposures that result in the receipt or payment of future known and uncertain cash amounts, the values of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.

The Company is exposed to credit risk in the event of non-performance by the counterparties to the swaps if the derivative position has a positive balance. The Company believes it mitigates its credit risk by entering into swaps with major financial institutions. The Company continually monitors and actively manages interest costs on its variable-rate debt portfolio and may enter into additional interest rate swap positions or other derivative interest rate instruments based on market conditions. 

Credit Risk-Related Contingent Features

The Company has agreements with each of its swap counterparties that contain a provision whereby if the Company defaults on certain of its unsecured indebtedness, the Company could also be declared in default on its swaps, resulting in an acceleration of payment under the swaps.

Other Financial Instruments

The Company’s other financial instruments had the following carrying values and fair values as of the dates shown (dollars in thousands, inclusive of amounts attributable to noncontrolling interests where applicable):

			June 30, 2021				December 31, 2020
	Level		Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Notes Receivable (a)		3	$	117,280	$	117,969	$	101,450	$	102,135
Mortgage and Other Notes Payable (a)		3		1,166,948		1,145,654		1,210,540		1,190,214
Investment in non-traded equity securities (b)		3		2,863		3,404		1,726		1,456
Unsecured notes payable and Unsecured line of credit (c)		2		506,009		507,596		559,514		544,532

(a)The Company determined the estimated fair value of these financial instruments using a discounted cash flow model with rates that take into account the credit of the borrower or tenant, where applicable, and interest rate risk. The Company also considered the value of the underlying collateral, taking into account the quality of the collateral, the credit quality of the borrower, the time until maturity and the current market interest rate environment.

(b)Represents the Operating Partnership’s cost-method investment in Fifth Wall (Note 4).

(c)The Company determined the estimated fair value of the unsecured notes payable and unsecured line of credit using quoted market prices in an open market with limited trading volume where available. In cases where there was no trading volume, the Company determined the estimated fair value using a discounted cash flow model using a rate that reflects the average yield of similar market participants.

The Company’s cash and cash equivalents, restricted cash, rents receivable, accounts payable and certain financial instruments included in other assets and other liabilities had fair values that approximated their carrying values due to their short maturity profiles at June 30, 2021.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

9. Commitments and Contingencies

The Company is involved in various matters of litigation arising out of, or incident to, its business. While the Company is unable to predict with certainty the outcome of any particular matter, management does not expect, when such litigation is resolved, that the Company’s resulting exposure to loss contingencies, if any, will have a material adverse effect on its consolidated financial position.

Commitments and Guaranties

In conjunction with the development and expansion of various properties, the Company has entered into agreements with general contractors for the construction or development of properties aggregating approximately $36.3 million and $32.7 million as of June 30, 2021 and December 31, 2020, respectively.

At June 30, 2021 and December 31, 2020, the Company had Core and Fund letters of credit outstanding of $33.8 million and $35.6 million, respectively (Note 7). The Company has not recorded any obligation associated with these letters of credit. The majority of the letters of credit are collateral for existing indebtedness and other obligations of the Company.

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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss

6 Months Ended

Jun. 30, 2021

Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss

10. Shareholders’ Equity, Noncontrolling Interests and Other Comprehensive Loss

Common Shares and Units

In addition to the share repurchase activity discussed below, the Company completed the following transactions in its Common Shares during the six months ended June 30, 2021:

The Company withheld 3,050 restricted shares of its Common Shares (“Restricted Shares”) to pay the employees’ statutory minimum income taxes due on the value of the portion of their Restricted Shares that vested.

The Company recognized Common Share and Common OP Unit-based compensation expense totaling $4.7 million and $4.2 million in connection with Restricted Shares and Units (Note 13) for the six months ended June 30, 2021 and 2020, respectively.

In addition to the ATM Program activity discussed below, the Company completed the following transactions in its Common Shares during the year ended December 31, 2020:

The Company withheld 2,075 Restricted Shares to pay the employees’ statutory minimum income taxes due on the value of the portion of their Restricted Shares that vested.

The Company recognized Common Share and Common OP Unit-based compensation expense totaling $8.4 million in connection with Restricted Shares and Units (Note 13).

ATM Program

The Company has an at-the-market equity issuance program (“ATM Program”) that provides the Company an efficient and low-cost vehicle for raising public equity capital to fund its needs. The Company entered into its current $250.0 million ATM Program, which includes an optional “forward purchase” component, in the second quarter of 2019. The Company sold 2,071,991 Common Shares under its ATM Program during the six months ended June 30, 2021 generating $46.3 million of gross proceeds and $45.7 million of net proceeds after related issuance costs at a weighted-average price per share of $22.37 and $22.09, respectively. The Company did not sell or issue any Common Shares on a forward basis for the six months ended June 30, 2021 or the year ended December 31, 2020 and currently has approximately $123.9 million of availability under the ATM program.

Share Repurchase Program

During 2018, the Company’s board of trustees (the “Board”) approved a new share repurchase program, which authorizes management, at its discretion, to repurchase up to $200.0 million of its outstanding Common Shares. The program does not obligate the Company to repurchase any specific number of Common Shares and may be discontinued or extended at any time. The Company did not repurchase any shares during the six months ended June 30, 2021. During the first quarter of 2020, the Company repurchased 1,219,065 Common Shares for $22.4 million, inclusive of $0.1 million of fees at a weighted-average price per share of $18.29, under the share repurchase program, under which $122.6 million remains available as of June 30, 2021.

Dividends and Distributions

The following table sets forth the distributions declared and/or paid during the periods presented:

Date Declared	Amount Per Share		Record Date	Payment Date
November 5, 2019	$	0.29	December 31, 2019	January 15, 2020
February 26, 2020	$	0.29	March 31, 2020	April 15, 2020
March 15, 2021	$	0.15	March 31, 2021	April 15, 2021
May 5, 2021	$	0.15	June 30, 2021	July 15, 2021

Beginning with the second quarter of 2020, the Board temporarily suspended distributions on its Common Shares and Common Units, which suspension continued through the fourth quarter of 2020; however, distributions of $0.1 million were payable to preferred unit holders at each of June 30, 2020, September 30, 2020 and December 31, 2020. The Company reinstated quarterly distributions beginning in the first quarter of 2021.

Accumulated Other Comprehensive Loss

The following tables set forth the activity in accumulated other comprehensive loss for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Gains or Losses on Derivative Instruments
Balance at April 1, 2021	$	(41,962	)
Other comprehensive loss before reclassifications - swap agreements		(10,073	)
Reclassification of realized interest on swap agreements		5,324
Net current period other comprehensive loss		(4,749	)
Net current period other comprehensive income attributable to noncontrolling    interests		(1,198	)
Balance at June 30, 2021	$	(47,909	)
Balance at April 1, 2020	$	(85,715	)
Other comprehensive loss before reclassifications - swap agreements		(8,621	)
Reclassification of realized interest on swap agreements		3,115
Net current period other comprehensive loss		(5,506	)
Net current period other comprehensive loss attributable to noncontrolling    interests		1,012
Balance at June 30, 2020	$	(90,209	)

	Gains or Losses on Derivative Instruments
Balance at January 1, 2021	$	(74,891	)
Other comprehensive income before reclassifications - swap agreements		23,483
Reclassification of realized interest on swap agreements		10,641
Net current period other comprehensive income		34,124
Net current period other comprehensive income attributable to noncontrolling    interests		(7,142	)
Balance at June 30, 2021	$	(47,909	)
Balance at January 1, 2020	$	(31,175	)
Other comprehensive loss before reclassifications - swap agreements		(83,395	)
Reclassification of realized interest on swap agreements		4,092
Net current period other comprehensive loss		(79,303	)
Net current period other comprehensive loss attributable to noncontrolling    interests		20,269
Balance at June 30, 2020	$	(90,209	)

Noncontrolling Interests

The following tables summarize the change in the noncontrolling interests for the three and six months ended June 30, 2021 and 2020 (dollars in thousands):

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at April 1, 2021	$	94,930		$	522,592		$	617,522
Distributions declared of $0.15 per Common OP Unit		(1,052	)		—			(1,052	)
Net income (loss) for the three months ended June 30, 2021		398			(3,085	)		(2,687	)
Conversion of 7,173 Common OP Units to Common Shares by limited partners of the Operating Partnership		(115	)		—			(115	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(406	)		(257	)		(663	)
Reclassification of realized interest expense on swap agreements		53			1,808			1,861
Noncontrolling interest contributions		—			5,868			5,868
Noncontrolling interest distributions		—			(4,355	)		(4,355	)
Employee Long-term Incentive Plan Unit Awards		2,399			—			2,399
Reallocation of noncontrolling interests (c)		(1,119	)		—			(1,119	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at April 1, 2020	$	93,382		$	483,714		$	577,096
Distributions on Preferred OP Units		(123	)		—			(123	)
Net income for the three months ended June 30, 2020		1,259			44,237			45,496
Conversion of 259,712 Common OP Units to Common Shares by limited partners of the Operating Partnership		(4,072	)		—			(4,072	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(310	)		(1,869	)		(2,179	)
Reclassification of realized interest expense on swap agreements		42			1,125			1,167
Noncontrolling interest contributions		—			21,041			21,041
Noncontrolling interest distributions		—			(1,418	)		(1,418	)
Employee Long-term Incentive Plan Unit Awards		2,142			—			2,142
Noncontrolling interest gain		—			588			588
Reallocation of noncontrolling interests (c)		(1,999	)		—			(1,999	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at January 1, 2021	$	89,431		$	517,808		$	607,239
Distributions declared of $0.30 per Common OP Unit		(2,100	)		—			(2,100	)
Net income (loss) for the six months ended June 30, 2021		868			(6,857	)		(5,989	)
Conversion of 25,973 Common OP Units to Common Shares by limited partners of the Operating Partnership		(409	)		—			(409	)
Other comprehensive income - unrealized gain on valuation of swap agreements		1,494			1,886			3,380
Reclassification of realized interest expense on swap agreements		106			3,656			3,762
Noncontrolling interest contributions		—			17,109			17,109
Noncontrolling interest distributions		—			(11,031	)		(11,031	)
Employee Long-term Incentive Plan Unit Awards		6,448			—			6,448
Reallocation of noncontrolling interests (c)		(750	)		—			(750	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at January 1, 2020	$	97,670		$	546,987		$	644,657
Distributions declared of $0.29 per Common OP Unit		(1,972	)		—			(1,972	)
Net income (loss) for the six months ended June 30, 2020		923			(7,052	)		(6,129	)
Conversion of 407,594 Common OP Units to Common Shares by limited partners of the Operating Partnership		(6,544	)		—			(6,544	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(3,451	)		(18,257	)		(21,708	)
Reclassification of realized interest expense on swap agreements		49			1,390			1,439
Noncontrolling interest contributions		—			28,309			28,309
Noncontrolling interest distributions		—			(4,536	)		(4,536	)
Employee Long-term Incentive Plan Unit Awards		5,790			—			5,790
Reallocation of noncontrolling interests (c)		(2,144	)		—			(2,144	)
Noncontrolling interest gain		—			588			588
Cumulative effect of change in accounting principle		—			(11	)		(11	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

(a)Noncontrolling interests in the Operating Partnership are comprised of (i) the limited partners’ 3,101,958 Common OP Units at each of June 30, 2021 and 2020; (ii) 188 Series A Preferred OP Units at each of June 30, 2021 and 2020; (iii) 126,593 Series C Preferred OP Units at each of June 30, 2021 and 2020; and (iv) 3,434,894 and 2,886,207 LTIP units at June 30, 2021 and 2020, respectively, as discussed in Share Incentive Plan (Note 13). Distributions declared for Preferred OP Units are reflected in net income (loss) in the table above.

(b)Noncontrolling interests in partially-owned affiliates comprise third-party interests in Funds II, III, IV and V, and Mervyns II, and six other subsidiaries.

(c)Adjustment reflects the difference between the fair value of the consideration received or paid and the book value of the Common Shares, Common OP Units, Preferred OP Units, and LTIP Units involving changes in ownership.

Preferred OP Units

There were no issuances of Preferred OP Units during the six months ended June 30, 2021 or the year ended December 31, 2020.

In 1999, the Operating Partnership issued 1,580 Series A Preferred OP Units in connection with the acquisition of a property, which have a stated value of $1000 per unit, and are entitled to a preferred quarterly distribution of the greater of (i) $22.50 (9% annually) per Series A Preferred OP Unit or (ii) the quarterly distribution attributable to a Series A Preferred OP Unit if such unit was converted into a Common OP Unit. Through June 30, 2021, 1,392 Series A Preferred OP Units were converted into 185,600 Common OP Units and then into Common Shares. The 188 remaining Series A Preferred OP Units are currently convertible into Common OP Units based on the stated value divided by $7.50. Either the Company or the holders can currently call for the conversion of the Series A Preferred OP Units at the lesser of $7.50 or the market price of the Common Shares as of the conversion date.

During 2016, the Operating Partnership issued 442,478 Common OP Units and 141,593 Series C Preferred OP Units to a third party to acquire Gotham Plaza (Note 4). The Series C Preferred OP Units have a value of $100.00 per unit and are entitled to a preferred quarterly distribution of $0.9375 per unit and are convertible into Common OP Units at a rate based on the share price at the time of conversion. If the share price is below $28.80 on the conversion date, each Series C Preferred OP Unit will be convertible into 3.4722 Common OP Units. If the share price is between $28.80 and $35.20 on the conversion date, each Series C Preferred OP Unit will be convertible into a number of Common OP Units equal to $100.00 divided by the closing share price. If the share price is above $35.20 on the conversion date, each Series C Preferred OP Unit will be convertible into 2.8409 Common OP Units. The Series C Preferred OP Units have a mandatory conversion date of December 31, 2025, at which time all units that have not been converted will automatically be converted into Common OP Units based on the same calculations. Through June 30, 2021, 15,000 Series C Preferred OP Units were converted into 51,887 Common OP Units and then into Common Shares.

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Leases

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

11. Leases

As Lessor

The Company is engaged in the operation of shopping centers and other retail properties that are either owned or, with respect to certain shopping centers, operated under long-term ground leases that expire at various dates through June 20, 2066, with renewal options (as discussed further below). Space in the shopping centers is leased to tenants pursuant to agreements that provide for terms ranging generally from one month to sixty years and generally provide for additional rents based on certain operating expenses as well as tenants’ sales volumes. During the six months ended June 30, 2021 and 2020, the Company earned $29.3 million and $27.3 million, respectively in variable lease revenues, primarily for real estate taxes and common area maintenance charges, which are included in rental income in the consolidated statements of income.

The activity for the reserves related to billed rents and straight-line rents (including those under specific operating leases where the collection of rents is assessed to be not probable) is as follows:

	Six Months Ended June 30, 2021
	Balance at Beginning of Period		Provision (Recovery)		Adjustments to Valuation Accounts		Deductions			Balance at End of Period
Allowance for credit loss - billed rents	$	30,366	$	1,238	$	—	$	(2,639	)	$	28,965
Straight-line rent reserves		15,042		586		—		(2,329	)		13,299
Total - rents receivable	$	45,408	$	1,824	$	—	$	(4,968	)	$	42,264

As Lessee

During the six months ended June 30, 2021, the Company:

modified its Rye, New York corporate office lease during the first quarter of 2021. As a result, of the modification, the lease was remeasured and the lease liability and right-of-use asset were each reduced by $0.4 million.

terminated its Fund IV lease at 110 University Place in New York City during the second quarter of 2021 (which was previously impaired in 2020, Note 8) for $3.6 million, and de-recognized the related right-of-use asset of $31.4 million, lease liability of $46.0 million and building improvements and other assets totaling $10.3 million, resulting in a gain on lease termination of $0.7 million, or $0.2 million at the Company's share, which is reflected within Gain on disposition of properties in the consolidated statement of income.

During the year ended December 31, 2020, the Company:

entered into one new office lease as lessee for which the lease commenced in the third quarter of 2020. The Company recorded a right-of-use asset and corresponding lease liability of $1.7 million;

modified its 991 Madison master lease by converting the 49-year fixed term to a 15-year term. As a result of the modification, the lease was reclassified from a finance lease to an operating lease during the second quarter of 2020;

consolidated one property within the BSP II portfolio, 102 E. Broughton, (Note 2), which was subject to a ground lease classified as an operating lease, during the second quarter of 2020;

recorded an impairment charge of $12.3 million on a right-of-use asset for a Fund IV property, 110 University Place (Note 8) during the fourth quarter of 2020;

renewed one ground lease for Branch Plaza, an operating lease, for 22 years during the second quarter of 2020; and

modified its 1238 Wisconsin lease agreement in the fourth quarter of 2020 for a reduced purchase price from $14.5 million to $11.5 million and, as a result, remeasured and reduced its right-of-use asset and lease liability by $1.9 million .

Additional disclosures regarding the Company’s leases as lessee are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021			2020
Lease Cost
Finance lease cost:
Amortization of right-of-use assets	$	225		487	$	451		$	1,144
Interest on lease liabilities		97		599		192			1,449
Subtotal		322		1,086		643			2,593
Operating lease cost		2,230		1,725		4,516			3,119
Variable lease cost		19		6		34			22
Total lease cost	$	2,571	$	2,817	$	5,193		$	5,734
Other Information
Weighted-average remaining lease term - finance leases (years)						33.0			33.7
Weighted-average remaining lease term - operating leases (years)						14.4			26.9
Weighted-average discount rate - finance leases						6.3	%		6.2	%
Weighted-average discount rate - operating leases						5.1	%		5.4	%

Right-of-use assets – finance leases are included in Operating real estate (Note 2) in the consolidated balance sheets. Lease liabilities – finance leases are included in Accounts payable and other liabilities in the consolidated balance sheets (Note 5). Operating lease cost comprises amortization of right-of-use assets for operating properties (related to ground rents) or amortization of right-of-use assets for office and corporate assets and is included in Property operating expense or General and administrative expense, respectively, in the consolidated statements of income. Finance lease cost comprises amortization of right-of-use assets for certain ground leases, which is included in Property operating expense, as well as interest on lease liabilities, which is included in Interest expense in the consolidated statements of income.

Lease Obligations

The scheduled future minimum (i) rental revenues from rental properties under the terms of non-cancelable tenant leases greater than one year (assuming no new or renegotiated leases or option extensions for such premises) and (ii) rental payments under the terms of all non-cancelable operating and finance leases in which the Company is the lessee, principally for office space, land and equipment, as of June 30, 2021, are summarized as follows (in thousands):

			Minimum Rental Payments
Year Ending December 31,	Minimum Rental Revenues (a)		Operating Leases (b)			Finance Leases (b)
2021 (Remainder)	$	100,375	$	3,010		$	69
2022		205,934		5,368			28
2023		190,196		5,389			—
2024		163,851		5,414			—
2025		133,093		5,329			—
Thereafter		528,888		29,711			12,515
		1,322,337		54,221			12,612
Interest		—		(13,360	)		(6,133	)
Total	$	1,322,337	$	40,861		$	6,479

a)Amount represents contractual lease maturities at June 30, 2021 including any extension options that management determined were reasonably certain of exercise. During 2020, numerous tenants were forced to suspend operations by government mandate as a result of the COVID-19 Pandemic. The Company has negotiated payment agreements with selected tenants which resulted in rent concessions or deferral of rents as discussed further below.

b)Minimum rental payments exclude options or renewals not reasonably certain of exercise.

During the three and six months ended June 30, 2021 and 2020, no single tenant or property collectively comprised more than 10% of the Company’s consolidated total revenues.

COVID-19 Pandemic Impacts

Beginning in March 2020, the COVID-19 Pandemic has had a material adverse impact on economic and market conditions, and consumer activity, and triggered a period of global and domestic economic slowdown. The COVID-19 Pandemic and government responses created disruption in global supply chains and has been adversely impacting many industries, including the domestic retail sectors in which the Company’s tenants operate. Under governmental restrictions and guidance, certain retailers were considered “essential businesses” and were permitted to remain fully operating during the COVID-19 Pandemic, while other “non-essential businesses” were ordered to decrease or close operations for an indeterminate period of time to protect their employees and customers from the spread of the virus. These disruptions, which have substantially ceased as of the date of this Report, have impacted the collectability of rent from the Company’s affected tenants primarily in 2020 and to a lesser extent in 2021. While the Company considers disruptions related to the COVID-19 Pandemic to be substantially over, if such government mandated closures are reinstated, they may have a material, adverse effect on the Company’s revenues, results of operations, financial condition, and liquidity in future periods.

Rent Collections – The Company collected or negotiated payment agreements of approximately 95.6% and 92.1% of its second quarter pre-COVID billings (original contract rents without regard to deferral or abatement agreements) for its Core Portfolio and the Funds, respectively.

Earnings Impact (Amounts Reflect the Company's Share) – The Company incurred aggregate credit losses and rent abatements totaling approximately $0 and $3.7 million for the three and six months ended June 30, 2021, respectively, compared to $9.4 million and $13.7 million for the three and six months ended June 30, 2020, respectively, primarily related to the COVID-19 Pandemic. In addition, the Company incurred impairment charges of $12.4 million (Note 8) for the six months ended June 30, 2020 primarily related to the COVID-19 Pandemic.

Other Impacts

Rent Concession Agreements – During the six months ended June 30, 2021, the Company executed 74 rent concession arrangements with tenants comprised of 17 agreements for rent deferral and 57 agreements for rent abatements. Of these deferral agreements, 15 were accounted for as if no changes to the contract were made and therefore there were no changes to the current or future recognition of revenue and $7.7 million of deferred receivables are included in Rents receivable in the consolidated balance sheet at June 30, 2021. Consolidated rent abatements represented a $2.4 million reduction in revenues at the Company's share for the six months ended June 30, 2021.

Occupancy – At June 30, 2021, the Company’s pro rata Core and Fund leased occupancy rates were 92.4% and 89.0%, respectively, compared to 93.3% and 91.1% respectively, at June 30, 2020 reflecting primarily leases terminated as a result of the COVID-19 Pandemic including leases discharged in bankruptcy proceedings during 2020.

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Segment Reporting

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Segment Reporting

12. Segment Reporting

The Company has three reportable segments: Core Portfolio, Funds and Structured Financing. The Company’s Core Portfolio consists primarily of high-quality retail properties located primarily in high-barrier-to-entry, densely-populated metropolitan areas with a long-term investment horizon. The Company’s Funds hold primarily retail real estate in which the Company co-invests with high-quality institutional investors. The Company’s Structured Financing segment consists of earnings and expenses related to notes and mortgages receivable which are held within the Core Portfolio or the Funds (Note 3). Fees earned by the Company as the general partner or managing member of the Funds are eliminated in the Company’s consolidated financial statements and are not presented in the Company’s segments.

The following tables set forth certain segment information for the Company (in thousands):

	For the Three Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	46,000		$	28,660		$	—		$	—		$	74,660
Depreciation and amortization		(17,333	)		(14,012	)		—			—			(31,345	)
Property operating expenses, other operating and real estate taxes		(14,205	)		(11,189	)		—			—			(25,394	)
General and administrative expenses		—			—			—			(10,671	)		(10,671	)
Gain on disposition of properties		—			5,909			—			—			5,909
Operating income		14,462			9,368			—			(10,671	)		13,159
Interest income		—			—			2,054			—			2,054
Realized and unrealized holding gains on investments and other		—			2,841			(130	)		—			2,711
Equity in earnings of unconsolidated affiliates		669			437			—			—			1,106
Interest expense		(7,350	)		(10,255	)		—			—			(17,605	)
Income tax provision		—			—			—			(194	)		(194	)
Net income		7,781			2,391			1,924			(10,865	)		1,231
Net (income) loss attributable to noncontrolling interests		(406	)		3,093			—			—			2,687
Net income attributable to Acadia	$	7,375		$	5,484		$	1,924		$	(10,865	)	$	3,918

	For the Three Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing		Unallocated			Total
Revenues	$	38,602		$	25,171		$	—	$	—		$	63,773
Depreciation and amortization		(18,150	)		(15,643	)		—		—			(33,793	)
Property operating expenses, other operating and real estate taxes		(17,961	)		(9,542	)		—		—			(27,503	)
General and administrative expenses		—			—			—		(8,720	)		(8,720	)
Gain on disposition of properties		—			485			—		—			485
Operating income		2,491			471			—		(8,720	)		(5,758	)
Interest income		—			—			2,095		—			2,095
Realized and unrealized holding gains on investments and other		—			87,751			60		—			87,811
Equity in (losses) earnings of unconsolidated affiliates		(1,070	)		284			—		—			(786	)
Interest expense		(8,602	)		(9,717	)		—		—			(18,319	)
Income tax provision		—			—			—		(137	)		(137	)
Net (loss) income		(7,181	)		78,789			2,155		(8,857	)		64,906
Net loss (income) attributable to noncontrolling interests		5,068			(50,564	)		—		—			(45,496	)
Net (loss) income attributable to Acadia	$	(2,113	)	$	28,225		$	2,155	$	(8,857	)	$	19,410

	As of or for the Six Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	88,350		$	55,704		$	—		$	—		$	144,054
Depreciation and amortization		(34,220	)		(28,515	)		—			—			(62,735	)
Property operating expenses, other operating and real estate taxes		(27,862	)		(22,471	)		—			—			(50,333	)
General and administrative expenses		—			—			—			(19,667	)		(19,667	)
Gain on disposition of properties		4,612			5,909			—			—			10,521
Operating income		30,880			10,627			—			(19,667	)		21,840
Interest income		—			—			3,754			—			3,754
Realized and unrealized holding gains on investments and other		—			9,388			(170	)		—			9,218
Equity in (losses) earnings of unconsolidated affiliates		(459	)		3,828			—			—			3,369
Interest expense		(14,564	)		(20,182	)		—			—			(34,746	)
Income tax provision		—			—			—			(344	)		(344	)
Net income		15,857			3,661			3,584			(20,011	)		3,091
Net (income) loss attributable to noncontrolling interests		(1,013	)		7,002			—			—			5,989
Net income attributable to Acadia	$	14,844		$	10,663		$	3,584		$	(20,011	)	$	9,080
Real estate at cost (a)	$	2,323,767		$	1,719,486		$	—		$	—		$	4,043,253
Total assets (a)	$	2,209,033		$	1,763,299		$	117,280		$	—		$	4,089,612
Cash paid for acquisition of real estate	$	—		$	—		$	—		$	—		$	—
Cash paid for development and property improvement costs	$	5,465		$	11,155		$	—		$	—		$	16,620

	As of or for the Six Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	78,535		$	56,658		$	—		$	—		$	135,193
Depreciation and amortization		(35,207	)		(31,963	)		—			—			(67,170	)
Property operating expenses, other operating and real estate taxes		(29,775	)		(21,495	)		—			—			(51,270	)
General and administrative expenses		—			—			—			(17,790	)		(17,790	)
Impairment charges		—			(51,549	)		—			—			(51,549	)
Gain on disposition of properties		—			485			—			—			485
Operating income (loss)		13,553			(47,864	)		—			(17,790	)		(52,101	)
Interest income		—			—			5,024			—			5,024
Realized and unrealized holding gains on investments and other		—			87,751			(470	)		—			87,281
Equity in earnings (losses) of unconsolidated affiliates		572			(103	)		—			—			469
Interest expense		(16,852	)		(19,769	)		—			—			(36,621	)
Income tax benefit		—			—			—			815			815
Net (loss) income		(2,727	)		20,015			4,554			(16,975	)		4,867
Net loss (income) attributable to noncontrolling interests		6,284			(155	)		—			—			6,129
Net income attributable to Acadia	$	3,557		$	19,860		$	4,554		$	(16,975	)	$	10,996
Real estate at cost (a)	$	2,362,334		$	1,799,890		$	—		$	—		$	4,162,224
Total assets (a)	$	2,323,986		$	1,870,070		$	134,692		$	—		$	4,328,748
Cash paid for acquisition of real estate	$	19,963		$	1,245		$	—		$	—		$	21,208
Cash paid for development and property improvement costs	$	6,443		$	14,090		$	—		$	—		$	20,533

a)Real estate at cost and total assets for the Funds segment include $650.6 million and $604.8 million, or $189.0 million and $176.0 million net of non-controlling interests, related to Fund II’s City Point property at June 30, 2021 and 2020, respectively.  

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Share Incentive and Other Compensation

6 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share Incentive and Other Compensation

13. Share Incentive and Other Compensation

Share Incentive Plan

The 2020 Share Incentive Plan (the “Share Incentive Plan”) authorizes the Company to issue options, Restricted Shares, LTIP Units and other securities (collectively “Awards”) to, among others, the Company’s officers, trustees and employees. At June 30, 2021 a total of 1,917,304 shares remained available to be issued under the Share Incentive Plan.

Restricted Shares and LTIP Units - Employees

During the six months ended June 30, 2021, and the year ended December 31, 2020, the Company issued 635,976 and 396,149 LTIP Units and 11,244 and 13,766 restricted share units (“Restricted Share Units”), respectively, to employees of the Company pursuant to the Share Incentive Plan. These awards were measured at their fair value on the grant date, incorporating the following factors:

A portion of these annual equity awards is granted in performance-based Restricted Share Units or LTIP Units that may be earned based on the Company’s attainment of specified relative total shareholder returns (“Relative TSR”) hurdles.

In the event the Relative TSR percentile falls between the 25th percentile and the 50th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 50% and 100% and in the event that the Relative TSR percentile falls between the 50th percentile and 75th percentile, the Relative TSR vesting percentage is determined using a straight-line linear interpolation between 100% and 200%.

Two-thirds (2/3) of the performance-based LTIP Units will vest based on the Company’s total shareholder return (“TSR”) for the three-year forward-looking performance period relative to the constituents of the SNL U.S. REIT Retail Shopping Center Index and one-third (1/3) on the Company’s TSR for the three-year forward-looking performance period as compared to the constituents of the SNL U.S. REIT Retail Index (both on a non-weighted basis).

If the Company’s performance fails to achieve the aforementioned hurdles at the culmination of the three-year performance period, all performance-based shares will be forfeited. Any earned performance-based shares vest 60% at the end of the performance period, with the remaining 40% of shares vesting ratably over the next two years.

For valuation of the 2021 and 2020 Performance Shares, a Monte Carlo simulation was used to estimate the fair values based on probability of satisfying the market conditions and the projected share prices at the time of payments, discounted to the valuation dates over the three-year performance periods. The assumptions include volatility (48.0% and 21.0%) and risk-free interest rates of (0.2% and 1.4%) for 2021 and 2020, respectively. The total value of the 2021 and 2020 Performance Shares will be expensed over the vesting period regardless of the Company’s performance.

The total value of the above Restricted Share Units and LTIP Units as of the grant date was $12.6 million during the six months ended June 30, 2021 and $10.4 million during the year ended December 31, 2020. Total long-term incentive compensation expense, including the expense related to the Share Incentive Plan, was $2.3 million and $2.1 million for the three months ended June 30, 2021 and 2020, and $4.7 million and $4.2 million for the six months ended June 30, 2021 and 2020, respectively and is recorded in General and administrative expense in the consolidated statements of income.

Restricted Shares and LTIP Units - Board of Trustees

In addition, members of the Board have been issued shares and units under the Share Incentive Plan. During the six months ended June 30, 2021, the Company issued 30,321 LTIP Units and 30,592 Restricted Shares as compensation to Trustees of the Company. A portion of LTIP Units and Restricted Shares vest over three years with 33% vesting May 9, 2022 and the remaining amount vesting ratably on May 9, 2023 and May 9, 2024. The remaining awards vest on May 9, 2022. The Restricted Shares do not carry voting rights or other rights of Common Shares until vesting and may not be transferred, assigned or pledged until the recipients have a vested non-forfeitable right to such shares. Dividends are not paid currently on unvested Restricted Shares, but are paid cumulatively from the issuance date through the applicable vesting date of such Restricted Shares. Total trustee fee expense, including the expense related to the Share Incentive Plan, was $0.8 million and $0.7 million for the six months ended June 30, 2021 and 2020, respectively, and is recorded in General and Administrative expense in the consolidated statements of income.

Long-Term Incentive Alignment Program

In 2009, the Company adopted the Long-Term Incentive Alignment Program (the “Program”) pursuant to which the Company may grant awards to employees, entitling them to receive up to 25% of any potential future payments of Promote to the Operating Partnership from Funds III, IV and V. The Company has granted such awards to employees representing 25% of the potential Promote payments from Fund III to the Operating Partnership, 23.1% of the potential Promote payments from Fund IV to the Operating Partnership and 8.4% of the potential Promote payments from Fund V to the Operating Partnership. Payments to senior executives under the Program require further Board approval at the time any potential payments are due pursuant to these grants. Compensation relating to these awards will be recognized in each reporting period in which Board approval is granted.

As payments to other employees are not subject to further Board approval, compensation relating to these awards will be recorded based on the estimated fair value at each reporting period in accordance with ASC Topic 718, Compensation– Stock Compensation. The awards in connection with Fund IV and Fund V were determined to have no intrinsic value as of June 30, 2021 or December 31, 2020.

The Company did not recognize any compensation expense for the six months ended June 30, 2021 or the year ended December 31, 2020 related to the Program in connection with Fund III, Fund IV or Fund V.

A summary of the status of the Company’s unvested Restricted Shares and LTIP Units is presented below:

Unvested Restricted Shares and LTIP Units	Common Restricted Shares			Weighted Grant-Date Fair Value		LTIP Units			Weighted Grant-Date Fair Value
Unvested at January 1, 2020		42,390		$	23.73		936,180		$	28.24
Granted		66,824			13.70		440,829			19.64
Vested		(19,264	)		27.72		(250,241	)		30.44
Forfeited		(39	)		24.77		(3,879	)		24.67
Unvested at December 31, 2020		89,911			15.42		1,122,889			24.38
Granted		43,078			19.94		666,297			19.48
Vested		(43,084	)		16.85		(283,024	)		26.66
Forfeited		(159	)		36.22		(91,637	)		36.22
Unvested at June 30, 2021		89,746		$	16.87		1,414,525		$	20.85

The weighted-average grant date fair value for Restricted Shares and LTIP Units granted for the six months ended June 30, 2021 and the year ended December 31, 2020 were $19.50 and $18.86, respectively. As of June 30, 2021, there was $22.0 million of total unrecognized compensation cost related to unvested share-based compensation arrangements granted under the Share Incentive Plan. That cost is expected to be recognized over a weighted-average period of 1.6 years. The total fair value of Restricted Shares that vested during the six months ended June 30, 2021 and the year ended December 31, 2020, was $0.7 million and $0.5 million, respectively. The total fair value of LTIP Units that vested (LTIP units vest primarily during the first quarter) during the six months ended June 30, 2021 and the year ended December 31, 2020, was $7.5 million and $7.6 million, respectively.

Other Plans

On a combined basis, the Company incurred a total of $0.3 million and $0.2 million of compensation expense related to the following employee benefit plans for the six months ended June 30, 2021 and 2020, respectively.

Employee Share Purchase Plan

The Acadia Realty Trust Employee Share Purchase Plan (the “Purchase Plan”), allows eligible employees of the Company to purchase Common Shares through payroll deductions. The Purchase Plan provides for employees to purchase Common Shares on a quarterly basis at a 15% discount to the closing price of the Company’s Common Shares on either the first day or the last day of the quarter, whichever is lower. A participant may not purchase more than $25,000 in Common Shares per year. Compensation expense will be recognized by the Company to the extent of the above discount to the closing price of the Common Shares with respect to the applicable quarter. A total of 4,651 and 1,604 Common Shares were purchased by employees under the Purchase Plan for the six months ended June 30, 2021 and 2020, respectively. On March 23, 2021, the Board adopted, which was subsequently approved by the Company’s shareholders at the 2021 annual meeting of shareholders, the Acadia Realty Trust 2021 Employee Share Purchase Plan which allows for a maximum aggregate issuance of 200,000 Common Shares.

Deferred Share Plan

During 2006, the Company adopted a Trustee Deferral and Distribution Election, under which the participating Trustees earn deferred compensation.

Employee 401(k) Plan

The Company maintains a 401(k) plan for employees under which the Company currently matches 50% of a plan participant’s contribution up to 6% of the employee’s annual salary. A plan participant may contribute up to a maximum of 15% of their compensation, up to $19,500, for the year ending December 31, 2021.

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Earnings Per Common Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Common Share

14. Earnings Per Common Share

Basic earnings per Common Share is computed by dividing net income attributable to Common Shareholders by the weighted-average Common Shares outstanding (Note 10). During the periods presented, the Company had unvested LTIP Units which provide for non-forfeitable rights to dividend equivalent payments. Accordingly, these unvested LTIP Units are considered participating securities and are included in the computation of basic earnings per Common Share pursuant to the two-class method.

Diluted earnings per Common Share reflects the potential dilution of the conversion of obligations and the assumed exercises of securities including the effects of Restricted Share Units issued under the Company’s Share Incentive Plans (Note 13). The effect of such shares is excluded from the calculation of earnings per share when anti-dilutive as indicated in the table below.

The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis. The income allocable to such units is allocated on this same basis and reflected as noncontrolling interests in the accompanying consolidated financial statements. As such, the assumed conversion of these units would have no net impact on the determination of diluted earnings per share.

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2021			2020			2021			2020
Numerator:
Net income attributable to Acadia	$	3,918		$	19,410		$	9,080		$	10,996
Less: net income attributable to participating securities		(156	)		(244	)		(312	)		(233	)
Income from continuing operations net of income attributable to participating securities	$	3,762		$	19,166		$	8,768		$	10,763
Denominator:
Weighted average shares for basic earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Effect of dilutive securities:
Employee unvested restricted shares		—			—			—			—
Denominator for diluted earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Basic and diluted earnings and basic income per Common Share from continuing operations attributable to Acadia	$	0.04		$	0.22		$	0.10		$	0.12
Anti-Dilutive Shares Excluded from Denominator:
Series A Preferred OP Units		188			188			188			188
Series A Preferred OP Units - Common share equivalent		25,067			25,067			25,067			25,067
Series C Preferred OP Units		126,593			126,593			126,593			126,593
Series C Preferred OP Units - Common share equivalent		439,556			439,556			439,556			439,556
Restricted shares		70,827			76,433			70,827			76,433

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Subsequent Events

6 Months Ended

Jun. 30, 2021

Subsequent Events [Abstract]

Subsequent Events

15. Subsequent Events 

Debt Extensions

On July 7, 2021, Fund V extended the maturity of the $40.3 million loan on its Fairlane Green property to June 5, 2022 pursuant to an existing extension option. In connection with the extension, Fund V made a principal payment of $6.6 million.

On July 21, 2021, Fund IV extended the maturity of the $22.9 million loan on its 146 Geary Street property to July 15, 2023 pursuant to an existing extension option. In connection with the extension, Fund IV made a principal payment of $3.6 million.

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

6 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Segments

Segments

At June 30, 2021, the Company had three reportable operating segments: Core Portfolio, Funds and Structured Financing. The Company’s chief operating decision maker may review operational and financial data on a property-level basis and does not differentiate properties on a geographical basis for purposes of allocating resources or capital. 

Principles of Consolidation

Principles of Consolidation

The interim consolidated financial statements include the consolidated accounts of the Company and its investments in partnerships and limited liability companies in which the Company has control in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) Topic 810 “Consolidation” (“ASC Topic 810”). The ownership interests of other investors in these entities are recorded as noncontrolling interests. All significant intercompany balances and transactions have been eliminated in consolidation. Investments in entities for which the Company has the ability to exercise significant influence over, but does not have financial or operating control, are accounted for using the equity method of accounting. Accordingly, the Company’s share of the earnings (or losses) of these entities are included in consolidated net income or loss.

The interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. Operating results for the interim periods presented are not necessarily indicative of the results that may be expected for the full fiscal year. The information furnished in the accompanying consolidated financial statements reflects all adjustments that, in the opinion of management, are necessary for a fair presentation of the aforementioned consolidated financial statements for the interim periods. Such adjustments consisted of normal recurring items, with the exception of adjustments due to the adoption of the new credit loss standard and impairment.

These interim consolidated financial statements should be read in conjunction with the Company’s 2020 Annual Report on Form 10-K, as filed with the SEC on February 22, 2021.

Reclassifications

Reclassifications

Certain prior year amounts on the Company’s consolidated balance sheet at December 31, 2020 with regard to Mortgage and other notes payable, net and Unsecured notes payable, net have been reclassified to conform to the current period presentation. In addition, certain prior year amounts in the Company’s statement of cash flows for the six months ended June 30, 2020 with regard to Right-of-use assets – operating leases, lease liabilities – operating leases and credit losses have been reclassified to conform to the current period presentation. These reclassifications had no material effect on the reported results of operations, financial condition or cash flows.

Use of Estimates

Use of Estimates

GAAP requires the Company’s management to make estimates and assumptions that affect the amounts reported in the interim consolidated financial statements and accompanying notes. The most significant assumptions and estimates relate to the valuation of real estate, depreciable lives, revenue recognition and the collectability of notes receivable and rents receivable. Application of these estimates and assumptions requires the exercise of judgment as to future uncertainties and, as a result, actual results could differ from these estimates.

Recently Adopted Accounting and Reporting Guidance

Recently Adopted Accounting and Reporting Guidance

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740) Simplifying the Accounting for Income Taxes. The amendments in this Update provide guidance for interim period and intra period tax accounting; provide tax accounting guidance for foreign subsidiaries; require that an entity recognize a franchise (or similar) tax that is partially based on income as an income-based tax and account for any incremental amount incurred as a non-income-based tax; as well as other changes to tax accounting. This ASU is effective for fiscal years beginning after December 15, 2020. As a REIT, the Company usually does not have significant income taxes. Accordingly, the implementation of this guidance did not have a material effect on the Company’s consolidated financial statements.

During October 2020, the SEC issued new rules modernizing certain Regulation S-K disclosure requirements. The final rule is intended to improve the readability of disclosures, reduce repetition, and eliminate immaterial information, thereby simplifying compliance for registrants and making disclosures more meaningful for investors. These changes were effective for all filings on or after November 7, 2020. The Company has made minor disclosure changes in this Report and to the "Business" and "Risk Factors" sections of the annual report on Form 10-K for 2020.

On April 8, 2020, the FASB issued a Q&A allowing for reporting entities to make an accounting policy election to account for lease concessions related to the effects of COVID-19 consistent with how those concessions would be accounted for under Topic 842, which is as though the enforceable rights and obligations for those concessions existed regardless of whether those enforceable rights and obligations for the concessions explicitly exist in the contract. This election is available for concessions that result in the total cash flows required by the modified contract being substantially the same or less than total cash flows required by the original contract. Effective April 1, 2020, the Company has made the accounting policy election noted above. The Company entered into concession agreements as lessor during the six months ended June 30, 2021 (Note 11). The Company may grant further concessions during subsequent periods.

In January 2020, the FASB issued ASU 2020-01 Investments—Equity securities (Topic 321), Investments—Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)—Clarifying the Interactions Between Topic 321, Topic 323, and Topic 815. The amendments in this Update affect all entities that apply the guidance in Topics 321, 323, and 815 and (i) elect to apply the measurement alternative or (ii) enter into a forward contract or purchase an option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting. This ASU is effective for fiscal years beginning after December 15, 2020. Currently, the Company does not apply the measurement alternative and does not have any such forward contracts or purchase options. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

In October 2020, the FASB issued ASU 2020-08 Codification Improvements to Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs. The amendments in this update clarify that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-35-33 for each reporting period. This ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early application is not permitted. Currently, the Company does not have any such callable debt securities. As a result, the implementation of this guidance did not have any effect on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In August 2020, the FASB issued ASU 2020-06—Debt with conversion and other options (Subtopic 470-20) and derivatives and hedging—contracts in entity's own equity (Subtopic 815-40)—accounting for convertible instruments and contracts in an entity's own equity. This ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. The ASU simplifies accounting for convertible instruments and simplifies the diluted earnings per share (EPS) calculation in certain areas. This ASU is effective for fiscal years beginning after December 15, 2021. Currently, the Company does not have any such debt instruments and, as a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In January 2021, the FASB issued ASU 2021-01 Reference Rate Reform (Topic 848) which modifies ASC 848, which was intended to provide relief related to “contracts and transactions that reference LIBOR or a reference rate that is expected to be discontinued as a result of reference rate reform.” ASU 2021-01 expands the scope of ASC 848 to include all affected derivatives and give reporting entities the ability to apply certain aspects of the contract modification and hedge accounting expedients to derivative contracts affected by the discounting transition. ASU 2021-01 also adds implementation guidance to clarify which optional expedients in ASC 848 may be applied to derivative instruments that do not reference LIBOR or a reference rate that is expected to be discontinued, but that are being modified as a result of the discounting transition. Currently, the Company does not anticipate the need to modify any existing debt agreements as a result of reference rate reform in the current year. If any modification is executed as a result of reference rate reform, the Company will elect the optional practical expedient under ASU 2020-04 and 2021-01, which allows entities to account for the modification as if the modification was not substantial. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

In May 2021, the FASB issued ASU 2021-04 Modification of equity-classified written call options — Earnings Per Share (Topic 260), Debt—Modifications and Extinguishments (Subtopic 470-50), Compensation—Stock Compensation (Topic 718), and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options — to codify how an issuer should account for modifications made to equity-classified written call options (a warrant to purchase the issuer’s common stock). The guidance in the ASU requires the issuer to treat a modification of an equity-classified warrant that does not cause the warrant to become liability-classified as an exchange whether structured as an amendment or reissuance and is effective for all periods beginning after December 15, 2021 with early application permitted. The Company does not currently have any outstanding equity awards with written call options. As a result, the implementation of this guidance is not expected to have an effect on the Company’s consolidated financial statements.

Lease Intangibles

Upon acquisitions of real estate (Note 2), the Company assesses the fair value of acquired assets (including land, buildings and improvements, and identified intangibles such as above- and below-market leases, including below-market options and acquired in-place leases) and assumed liabilities. The lease intangibles are amortized over the remaining terms of the respective leases, including option periods where applicable.

Earnings Per Common Share

Basic earnings per Common Share is computed by dividing net income attributable to Common Shareholders by the weighted-average Common Shares outstanding (Note 10). During the periods presented, the Company had unvested LTIP Units which provide for non-forfeitable rights to dividend equivalent payments. Accordingly, these unvested LTIP Units are considered participating securities and are included in the computation of basic earnings per Common Share pursuant to the two-class method.

Diluted earnings per Common Share reflects the potential dilution of the conversion of obligations and the assumed exercises of securities including the effects of Restricted Share Units issued under the Company’s Share Incentive Plans (Note 13). The effect of such shares is excluded from the calculation of earnings per share when anti-dilutive as indicated in the table below.

The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis. The income allocable to such units is allocated on this same basis and reflected as noncontrolling interests in the accompanying consolidated financial statements. As such, the assumed conversion of these units would have no net impact on the determination of diluted earnings per share.

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

6 Months Ended

Jun. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Schedule of Operating Partnership's Equity Interest

The following table summarizes the general terms and Operating Partnership’s equity interests in the Funds and Mervyns II (dollars in millions):

Entity	Formation Date	Operating Partnership Share of Capital			Capital Called as of June 30, 2021 (b)		Unfunded Commitment (b, c)		Equity Interest Held By Operating Partnership (a)			Preferred Return			Total Distributions as of June 30, 2021 (b, c)
Fund II and Mervyns II (c)	6/2004		28.33	%	$	373.4	$	11.9		28.33	%		8	%	$	169.8
Fund III	5/2007		24.54	%		448.1		1.9		24.54	%		6	%		568.8
Fund IV	5/2012		23.12	%		488.1		41.9		23.12	%		6	%		193.1
Fund V (d)	8/2016		20.10	%		217.1		302.9		20.10	%		6	%		36.9

(a)Amount represents the current economic ownership at June 30, 2021, which could differ from the stated legal ownership based upon the cumulative preferred returns of the respective Fund.

(b)Represents the total for the Funds, including the Operating Partnership and noncontrolling interests’ shares.

(c)During August 2020, a recallable distribution of $15.7 million was made by Mervyn’s II to its investors, of which $4.5 million was the Company’s share. During the first half of 2021, Mervyn’s II recalled $3.8 million of the $15.7 million of which the Company's share was $1.1 million.

(d)As of April 8, 2021, Fund V's investment period was extended to August 25, 2022.

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Real Estate (Tables)

6 Months Ended

Jun. 30, 2021

Acquisition And Disposition Of Properties And Discontinued Operations [Abstract]

Schedule of Consolidated Real Estate

The Company’s consolidated real estate is comprised of the following for the periods presented (in thousands):

	June 30, 2021			December 31, 2020
Land	$	761,029		$	776,275
Buildings and improvements		2,825,549			2,848,781
Tenant improvements		204,542			191,046
Construction in progress		9,427			5,751
Right-of-use assets - finance leases (Note 11)		25,086			25,086
Total		3,825,633			3,846,939
Less: Accumulated depreciation and amortization		(624,461	)		(586,800	)
Operating real estate, net		3,201,172			3,260,139
Real estate under development		217,620			247,349
Net investments in real estate	$	3,418,792		$	3,507,488

Schedule of Business Acquisitions, by Acquisition

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company acquired the following consolidated retail properties and other real estate investments (dollars in thousands):

Property and Location	Percent Acquired	Date of Acquisition	Purchase Price
2021 Acquisitions
None
2020 Acquisitions and Conversions
Core
Soho Acquisitions - 37 Greene Street - New York, NY	100%	Jan 9, 2020	$	15,689
917 W. Armitage - Chicago, IL	100%	Feb 13, 2020		3,515
Town Center - Wilmington, DE (Conversion) (Note 4)	100%	Apr 1, 2020		138,939
Subtotal Core				158,143
Fund IV
230-240 W. Broughton Street - Savannah, GA	100%	May 26, 2020		13,219
102 E. Broughton Street - Savannah, GA	100%	May 26, 2020		790
Subtotal Fund IV				14,009
Total 2020 Acquisitions and Conversions			$	172,152

Schedule of Purchase Price Allocations

The purchase prices for the 2020 Acquisitions and Conversions were allocated to the acquired assets and assumed liabilities based on their estimated fair values at the dates of acquisition. The following table summarizes the allocation of the purchase price of properties acquired during the periods presented (in thousands):

	Six Months Ended June 30, 2021		Year Ended December 31, 2020
Net Assets Acquired
Land	$	—	$	25,440
Buildings and improvements		—		123,459
Accounts receivable, prepaids and other assets		—		5,770
Acquisition-related intangible assets (Note 6)		—		23,061
Right-of-use asset - Operating lease (Note 11)		—		234
Acquisition-related intangible liabilities (Note 6)		—		(4,569	)
Lease liability - Operating lease (Note 11)		—		(234	)
Accounts payable and other liabilities		—		(1,009	)
Net assets acquired	$	—	$	172,152
Consideration
Cash	$	—	$	21,208
Conversion of note receivable		—		38,674
Conversion of accrued interest		—		1,995
Liabilities assumed		—		116
Existing interest in previously unconsolidated investment		—		109,571
Acquisition of noncontrolling interests		—		588
Total consideration	$	—	$	172,152

Schedule of Property Dispositions

During the six months ended June 30, 2021 and the year ended December 31, 2020, the Company disposed of the following consolidated properties and other real estate investments (in thousands):

Property and Location	Owner	Date Sold	Sale Price		Gain on Sale
2021 Dispositions
60 Orange St - Bloomfield, NJ	Core	Jan 29, 2021	$	16,400	$	4,612
654 Broadway - New York, NY	Fund III	May 19, 2021		10,000		111
NE Grocer Portfolio (Selected Assets) - Maine	Fund IV	Jun 18, 2021		39,925		5,064
Total 2021 Dispositions			$	66,325	$	9,787
2020 Dispositions
163 Highland Ave. (Easement) - Needham, MA	Core	Mar 19, 2020	$	238	$	88
Colonie Plaza - Albany, NY	Fund IV	Apr 13, 2020		15,250		485
Airport Mall (Parcel) - Bangor, ME	Fund IV	Sep 10, 2020		400		24
Cortlandt Crossing (Sewer Project and Retention Pond) - Cortlandt, NY	Fund III	Nov 30, 2020		6,325		—
Union Township (Parcel) - New Castle, PA	Core	Dec 11, 2020		200		86
Total 2020 Dispositions			$	22,413	$	683

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures

The aggregate rental revenue, expenses and pre-tax income reported within continuing operations for the aforementioned consolidated properties that were sold as well as the lease that was terminated (Note 11) during the six months ended June 30, 2021 and year ended December 31, 2020 were as follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Revenues	$	1,557		$	2,631		$	3,570		$	5,468
Expenses		(1,979	)		(2,513	)		(3,863	)		(5,397	)
Gain on disposition of properties		5,909			485			10,521			485
Net income attributable to noncontrolling interests		(4,218	)		(395	)		(4,320	)		(307	)
Net income attributable to Acadia	$	1,269		$	208		$	5,908		$	249

Schedule Of Development In Process Activities

Development activity for the Company’s consolidated properties comprised the following during the periods presented (dollars in thousands):

	January 1, 2021				Six Months Ended June 30, 2021						June 30, 2021
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	63,875	$	—	$	1,222	$	23,213		—	$	41,884
Fund II		—		74,657		—		984		—		—		75,641
Fund III		1		23,139		—		546		—		1		23,685
Fund IV		2		85,678		—		2,094		11,362		1		76,410
Total		3	$	247,349	$	—	$	4,846	$	34,575		2	$	217,620

	January 1, 2020				Year Ended December 31, 2020						December 31, 2020
	Number of Properties		Carrying Value		Transfers In		Capitalized Costs		Transfers Out		Number of Properties		Carrying Value
Core		—	$	60,863	$	—	$	3,012	$	—		—	$	63,875
Fund II (a)		—		10,703		66,812		3,612		6,470		—		74,657
Fund III		1		36,240		—		70		13,171		1		23,139
Fund IV (b)		2		145,596		—		1,368		61,286		2		85,678
Total		3	$	253,402	$	66,812	$	8,062	$	80,927		3	$	247,349

a)Transfers in include $33.8 million of non-cash Fund II additions obtained through the conversion of a note receivable (Note 3).

b)Transfers out include impairment charges totaling $16.5 million on two Fund IV development properties (Note 8).

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Notes Receivable, Net (Tables)

6 Months Ended

Jun. 30, 2021

Accounts And Notes Receivable Net [Abstract]

Schedule of Notes Receivable

The Company’s notes receivable, net are generally collateralized either by the underlying properties or the borrowers’ ownership interests in the entities that own the properties, and were as follows (dollars in thousands):

	June 30,			December 31,			June 30, 2021
Description	2021			2020			Number		Maturity Date	Interest Rate
Core Portfolio (a)	$	112,794		$	96,794			7	Apr 2020 - Dec 2027	4.65% - 9.00%
Fund III		5,306			5,306			1	Jul 2020	18.00%
Total notes receivable		118,100			102,100
Allowance for credit loss		(820	)		(650	)
Notes receivable, net	$	117,280		$	101,450			8

Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020.

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Investments in and Advances to Unconsolidated Affiliates (Tables)

6 Months Ended

Jun. 30, 2021

Equity Method Investments And Joint Ventures [Abstract]

Schedule of Equity Method Investments

The Company’s investments in and advances to unconsolidated affiliates consist of the following (dollars in thousands):

		Ownership Interest	June 30,		December 31,
Portfolio	Property	June 30, 2021	2021		2020
Core:	840 N. Michigan (a)	88.43%	$	53,869	$	55,863
	Renaissance Portfolio	20%		28,835		29,270
	Gotham Plaza	49%		28,796		28,683
	Georgetown Portfolio	50%		3,796		4,624
	1238 Wisconsin Avenue	80%		3,352		2,571
				118,648		121,011
Mervyns I & II:	KLA/ABS (b)	36.7%		80,956		72,391
Fund III:	Self Storage Management (c)	95%		207		207
Fund IV:	Fund IV Other Portfolio	98.57%		12,327		11,719
	650 Bald Hill Road	90%		11,714		12,550
				24,041		24,269
Fund V:	Family Center at Riverdale (a)	89.42%		12,927		11,824
	Tri-City Plaza	90%		6,904		7,024
	Frederick County Acquisitions	90%		10,895		10,837
				30,726		29,685
Various:	Due from (to) Related Parties			467		363
	Other (d)			3,018		1,881
	Investments in and advances to unconsolidated affiliates		$	258,063	$	249,807
Core:	Crossroads (e)	49%	$	14,896	$	15,616
	Distributions in excess of income from, and investments in, unconsolidated affiliates		$	14,896	$	15,616

a)Represents a tenancy-in-common interest.

b)Includes an interest in Albertsons (at fair value, as described below) (Note 8).

c)Represents a variable interest entity for which the Company was determined not to be the primary beneficiary.

d)Includes cost-method investments in Storage Post, Fifth Wall and other investments.

e)Distributions have exceeded the Company’s investment; however, the Company recognizes a liability balance as it may be required to return distributions to fund future obligations of the entity.

Schedule of Condensed Balance Sheet

The following combined and condensed Balance Sheets and Statements of operations, in each period, summarize the financial information of the Company’s investments in unconsolidated affiliates that were held as of June 30, 2021, and accordingly exclude the results of any investments disposed of or consolidated prior to that date (in thousands):

	June 30, 2021		December 31, 2020
Combined and Condensed Balance Sheets
Assets:
Rental property, net	$	556,800	$	563,997
Real estate under development		12,900		14,517
Other assets		63,060		61,969
Total assets	$	632,760	$	640,483
Liabilities and partners’ equity:
Mortgage notes payable	$	507,111	$	512,490
Other liabilities		72,577		74,872
Partners’ equity		53,072		53,121
Total liabilities and partners’ equity	$	632,760	$	640,483
Company's share of accumulated equity	$	100,237	$	100,767
Basis differential		54,320		55,017
Deferred fees, net of portion related to the Company's interest		3,962		3,565
Amounts receivable/payable by the Company		467		363
Investments in and advances to unconsolidated affiliates, net of Company's    share of distributions in excess of income from and investments in    unconsolidated affiliates		158,986		159,712
Investments carried at fair value or cost		84,181		74,479
Company's share of distributions in excess of income from and    investments in unconsolidated affiliates		14,896		15,616
Investments in and advances to unconsolidated affiliates	$	258,063	$	249,807

Schedule of Condensed Income Statement

	Three Months Ended June 30,						Six Months Ended June 30,
	2021			2020			2021			2020
Combined and Condensed Statements of Operations
Total revenues	$	19,541		$	16,372		$	36,822		$	36,714
Operating and other expenses		(6,814	)		(6,183	)		(13,033	)		(13,607	)
Interest expense		(4,581	)		(5,014	)		(9,403	)		(10,270	)
Depreciation and amortization		(5,676	)		(6,524	)		(14,477	)		(12,885	)
Gain on disposition of properties (a)		—			—			3,206			—
Net income (loss) attributable to unconsolidated affiliates	$	2,470		$	(1,349	)	$	3,115		$	(48	)
Company’s share of equity in net income (loss) of unconsolidated affiliates	$	1,368		$	(510	)	$	4,066		$	(174	)
Income attributable to unconsolidated affiliates recently sold or consolidated		—			46			—			1,291
Basis differential amortization		(262	)		(322	)		(697	)		(648	)
Company’s equity in earnings (losses) of unconsolidated affiliates	$	1,106		$	(786	)	$	3,369		$	469

a)Represents the gain on the sale of two land parcels by the Family Center at Riverdale on January 4, 2021. 

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Other Assets, Net and Accounts Payable and Other Liabilities (Tables)

6 Months Ended

Jun. 30, 2021

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Schedule of Other Assets and Other Liabilities

Other assets, net and accounts payable and other liabilities are comprised of the following for the periods presented:

(in thousands)	June 30, 2021			December 31, 2020
Other Assets, Net:
Lease intangibles, net (Note 6)	$	83,722		$	100,732
Deferred charges, net (a)		31,850			30,488
Accrued interest receivable		17,263			13,917
Prepaid expenses		15,507			17,468
Due from seller		3,364			3,682
Income taxes receivable		2,015			2,433
Other receivables		1,904			2,058
Deposits		2,709			1,728
Corporate assets, net		1,257			1,302
Derivative financial instruments (Note 8)		1			1
	$	159,592		$	173,809
(a) Deferred Charges, Net:
Deferred leasing and other costs	$	59,377		$	57,533
Deferred financing costs related to line of credit		9,757			11,341
		69,134			68,874
Accumulated amortization		(37,284	)		(38,386	)
Deferred charges, net	$	31,850		$	30,488
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	$	66,982		$	76,434
Accounts payable and accrued expenses		57,582			53,031
Derivative financial instruments (Note 8)		60,979			90,139
Deferred income		34,928			31,842
Tenant security deposits, escrow and other		12,106			12,178
Lease liability - finance leases, net (Note 11)		6,479			6,287
	$	239,056		$	269,911

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Lease Intangibles (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Liabilities Included in Other Assets and Accounts Payable and Other Liabilities

Intangible assets and liabilities are included in Other assets, net and Accounts payable and other liabilities (Note 5) on the consolidated balance sheet and summarized as follows (in thousands):

	June 30, 2021									December 31, 2020
	Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount
Amortizable Intangible Assets
In-place lease intangible assets	$	259,391		$	(179,197	)	$	80,194		$	268,335		$	(171,856	)	$	96,479
Above-market rent		19,115			(15,587	)		3,528			19,188			(14,935	)		4,253
	$	278,506		$	(194,784	)	$	83,722		$	287,523		$	(186,791	)	$	100,732
Amortizable Intangible Liabilities
Below-market rent	$	(157,590	)	$	91,041		$	(66,549	)	$	(164,923	)	$	88,951		$	(75,972	)
Above-market ground lease		(671	)		238			(433	)		(671	)		209			(462	)
	$	(158,261	)	$	91,279		$	(66,982	)	$	(165,594	)	$	89,160		$	(76,434	)

Scheduled Amortization of Acquired Lease Intangible Assets and Assumed Liabilities

The scheduled amortization of acquired lease intangible assets and assumed liabilities as of June 30, 2021 is as follows (in thousands):

Years Ending December 31,	Net Increase in Lease Revenues		Increase to Amortization			Reduction of Rent Expense		Net (Expense) Income
2021 (Remainder)	$	3,205	$	(11,153	)	$	29	$	(7,919	)
2022		5,929		(17,741	)		58		(11,754	)
2023		5,460		(13,134	)		58		(7,616	)
2024		5,106		(9,262	)		58		(4,098	)
2025		4,435		(6,914	)		58		(2,421	)
Thereafter		38,886		(21,990	)		172		17,068
Total	$	63,021	$	(80,194	)	$	433	$	(16,740	)

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Debt (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Summary of Consolidated Indebtedness

A summary of the Company’s consolidated indebtedness is as follows (dollars in thousands):

	Interest Rate at			Carrying Value at
	June 30,	December 31,	Maturity Date at	June 30,	December 31,
	2021	2020	June 30, 2021	2021	2020
Mortgages Payable
Core Fixed Rate	3.88%-5.89%	3.88%-5.89%	Feb 2024 - Apr 2035	$146,642	$147,810
Core Variable Rate - Swapped (a)	3.41%-4.54%	3.41%-4.54%	Jan 2023 - Nov 2028	73,367	80,500
Total Core Mortgages Payable				220,009	228,310
Fund II Variable Rate	LIBOR+3.00% - PRIME+2.00%	LIBOR+3.00% - PRIME+2.00%	Mar 2022 - August 2022	234,110	228,282
Fund II Variable Rate - Swapped (a)	2.88%	2.88%	Nov 2021	18,661	18,803
Total Fund II Mortgages Payable				252,771	247,085
Fund III Variable Rate	LIBOR+2.75%-LIBOR+3.10%	LIBOR+2.75%-LIBOR+3.10%	Jun 2022 - Jul 2022	71,308	71,918
Fund IV Fixed Rate	4.50%	3.40%-4.50%	Oct 2025	1,120	6,726
Fund IV Variable Rate	LIBOR+1.60%-LIBOR+3.40%	LIBOR+1.60%-LIBOR+3.40%	Jul 2021 - Oct 2025	244,087	254,234
Fund IV Variable Rate - Swapped (a)	3.48%-4.61%	3.48%-4.61%	Apr 2022 - Dec 2022	42,549	66,590
Total Fund IV Mortgages and Other Notes Payable				287,756	327,550
Fund V Variable Rate	LIBOR+1.50%-LIBOR+2.20%	LIBOR+1.50%-LIBOR+2.20%	Jul 2021 - Dec 2024	30,261	1,354
Fund V Variable Rate - Swapped (a)	2.43%-4.78%	2.95%-4.78%	Jul 2021 - Dec 2024	304,843	334,323
Total Fund V Mortgages Payable				335,104	335,677
Net unamortized debt issuance costs				(4,828)	(6,507)
Unamortized premium				497	548
Total Mortgages Payable				$1,162,617	$1,204,581
Unsecured Notes Payable
Core Variable Rate Credit Facility		LIBOR+2.55%		$—	$30,000
Core Variable Rate Unsecured    Term Loans - Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2026	400,000	350,000
Total Core Unsecured Notes    Payable				400,000	380,000
Fund II Unsecured Notes Payable	LIBOR+1.65%	LIBOR+1.65%	Sep 2021	40,000	40,000
Fund IV Term Loan/Subscription Facility	LIBOR+1.90%	LIBOR+1.90%	Dec 2021	—	864
Fund V Subscription Facility	LIBOR+1.90%	LIBOR+1.60%	May 2022	4,604	250
Net unamortized debt issuance costs				(4,516)	(256)
Total Unsecured Notes Payable				$440,088	$420,858
Unsecured Line of Credit
Core Unsecured Line of Credit -Swapped (a)	3.65%-5.32%	2.49%-5.02%	Jun 2025	$61,405	$138,400
Total Debt - Fixed Rate (b, c )				$1,053,715	$1,143,152
Total Debt - Variable Rate (d)				619,242	626,902
Total Debt				1,672,957	1,770,054
Net unamortized debt issuance costs				(9,344)	(6,763)
Unamortized premium				497	548
Total Indebtedness				$1,664,110	$1,763,839

a)At June 30, 2021, the stated rates ranged from LIBOR + 1.50% to LIBOR +1.90% for Core variable-rate debt; LIBOR + 1.39% for Fund II variable-rate debt; LIBOR + 2.75% to LIBOR + 3.10% for Fund III variable-rate debt; LIBOR + 1.75% to LIBOR +2.00% for Fund IV variable-rate debt; LIBOR + 1.50% to LIBOR + 2.20% for Fund V variable-rate debt; LIBOR + 1.55% for Core variable-rate unsecured term loans; and LIBOR + 1.40% for Core variable-rate unsecured lines of credit.

b)Includes $900.8 million and $988.6 million, respectively, of variable-rate debt that has been fixed with interest rate swap agreements as of the periods presented.

c)Fixed-rate debt at June 30, 2021 and December 31, 2020 includes $5.1 million and $3.2 million, respectively of Core swaps that may be used to hedge debt instruments of the Funds.

d)Includes $145.0 million and $139.2 million, respectively, of variable-rate debt that is subject to interest cap agreements.

Scheduled Principal Repayments

The scheduled principal repayments, without regard to available extension options (described further below), of the Company’s consolidated indebtedness, as of June 30, 2021 are as follows (in thousands):

Year Ending December 31,
2021 (Remainder)	$	212,969
2022		529,299
2023		59,361
2024		212,020
2025		126,732
Thereafter		532,576
		1,672,957
Unamortized premium		497
Net unamortized debt issuance costs		(9,344	)
Total indebtedness	$	1,664,110

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Financial Instruments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents the Company’s fair value hierarchy for those assets and liabilities measured at fair value on a recurring basis (in thousands):

	June 30, 2021						December 31, 2020
	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets
Money market funds	$	—	$	—	$	—	$	—	$	—	$	—
Derivative financial instruments		—		1		—		—		1		—
Investment in Albertsons (Note 4)		80,956		—		—		72,391		—		—
Liabilities
Derivative financial instruments		—		60,979		—		—		90,139		—

Schedule of Items Measured at Fair Value on Nonrecurring Basis

During 2020, the Company was impacted by the COVID-19 Pandemic (Note 11), which caused the Company to reduce its holding periods and forecasted operating income at certain properties. As a result, several impairments were recorded. Impairment charges for the periods presented are as follows (in thousands):

					Impairment Charge
Property and Location	Owner	Triggering Event	Level 3 Inputs	Effective Date	Total		Acadia's Share
2021 Impairment Charges
None
2020 Impairment Charges
Cortlandt Crossing, Mohegan Lake, NY	Fund III	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020	$	27,402	$	6,726
654 Broadway, New York, NY	Fund III	Reduced holding period	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,398		1,570
146 Geary Street, San Francisco, CA	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		6,718		1,553
801 Madison Avenue, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Mar 31, 2020		11,031		2,551
717 N. Michigan Avenue, Chicago, IL	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		17,392		4,021
110 University, New York, NY	Fund IV	Reduced holding period, reduced projected operating income	Projections of: holding period, net operating income, cap rate, incremental costs	Dec 31, 2020		16,238		3,754
Fifth Wall Investment	Core	Decline in fair value	Projections of: reported fair value of net assets	Dec 31, 2020		419		419
Total 2020 Impairment Charges					$	85,598	$	20,594

Schedule of Derivative Financial Instruments

The Company had the following interest rate swaps and caps for the periods presented (dollars in thousands):

					Strike Rate								Fair Value
Derivative Instrument	Aggregate Notional Amount		Effective Date	Maturity Date	Low				High			Balance Sheet Location	June 30, 2021			December 31, 2020
Core
Interest Rate Swaps	$	539,898	Dec 2012-Jul 2020	Mar 2022-Jul 2030		1.71	%	—		3.77	%	Other Liabilities	$	(51,255	)	$	(74,990	)
	$	539,898											$	(51,255	)	$	(74,990	)
Fund II
Interest Rate Swap	$	18,661	Oct 2014	Nov 2021		2.88	%	—		2.88	%	Other Liabilities	$	(89	)	$	(219	)
Interest Rate Cap		45,000	Mar 2019	Mar 2022		3.50	%	—		3.50	%	Other Assets		—			—
	$	63,661											$	(89	)	$	(219	)
Fund III
Interest Rate Caps	$	35,970	Jan 2021	Jul 2022		3.00	%	—		3.00	%	Other Assets	$	—		$	—
Fund IV
Interest Rate Swaps	$	42,549	Mar 2017 - Dec 2019	Apr 2022 - Dec 2022		1.48	%	—		4.00	%	Other Liabilities	$	(721	)	$	(1,713	)
Interest Rate Caps		77,400	July 2019 - Dec 2020	Jul 2021 - Dec 2022		3.00	%	—		3.50	%	Other Assets		1			1
	$	119,949											$	(720	)	$	(1,712	)
Fund V
Interest Rate Swaps	$	304,843	Jun 2018-Feb 2021	Feb 2022-Oct 2024		0.23	%	—		2.88	%	Other Liabilities	$	(8,914	)	$	(13,217	)
	$	304,843											$	(8,914	)	$	(13,217	)
Total asset derivatives													$	1		$	1
Total liability derivatives													$	(60,979	)	$	(90,139	)

Schedule of Other Financial Instruments Carrying Values and Fair values

The Company’s other financial instruments had the following carrying values and fair values as of the dates shown (dollars in thousands, inclusive of amounts attributable to noncontrolling interests where applicable):

			June 30, 2021				December 31, 2020
	Level		Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Notes Receivable (a)		3	$	117,280	$	117,969	$	101,450	$	102,135
Mortgage and Other Notes Payable (a)		3		1,166,948		1,145,654		1,210,540		1,190,214
Investment in non-traded equity securities (b)		3		2,863		3,404		1,726		1,456
Unsecured notes payable and Unsecured line of credit (c)		2		506,009		507,596		559,514		544,532

(a)The Company determined the estimated fair value of these financial instruments using a discounted cash flow model with rates that take into account the credit of the borrower or tenant, where applicable, and interest rate risk. The Company also considered the value of the underlying collateral, taking into account the quality of the collateral, the credit quality of the borrower, the time until maturity and the current market interest rate environment.

(b)Represents the Operating Partnership’s cost-method investment in Fifth Wall (Note 4).

(c)The Company determined the estimated fair value of the unsecured notes payable and unsecured line of credit using quoted market prices in an open market with limited trading volume where available. In cases where there was no trading volume, the Company determined the estimated fair value using a discounted cash flow model using a rate that reflects the average yield of similar market participants.

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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2021

Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]

Schedule of Dividends Declared and Paid

The following table sets forth the distributions declared and/or paid during the periods presented:

Date Declared	Amount Per Share		Record Date	Payment Date
November 5, 2019	$	0.29	December 31, 2019	January 15, 2020
February 26, 2020	$	0.29	March 31, 2020	April 15, 2020
March 15, 2021	$	0.15	March 31, 2021	April 15, 2021
May 5, 2021	$	0.15	June 30, 2021	July 15, 2021

Summary of Activity in Accumulated Other Comprehensive Loss

The following tables set forth the activity in accumulated other comprehensive loss for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Gains or Losses on Derivative Instruments
Balance at April 1, 2021	$	(41,962	)
Other comprehensive loss before reclassifications - swap agreements		(10,073	)
Reclassification of realized interest on swap agreements		5,324
Net current period other comprehensive loss		(4,749	)
Net current period other comprehensive income attributable to noncontrolling    interests		(1,198	)
Balance at June 30, 2021	$	(47,909	)
Balance at April 1, 2020	$	(85,715	)
Other comprehensive loss before reclassifications - swap agreements		(8,621	)
Reclassification of realized interest on swap agreements		3,115
Net current period other comprehensive loss		(5,506	)
Net current period other comprehensive loss attributable to noncontrolling    interests		1,012
Balance at June 30, 2020	$	(90,209	)

	Gains or Losses on Derivative Instruments
Balance at January 1, 2021	$	(74,891	)
Other comprehensive income before reclassifications - swap agreements		23,483
Reclassification of realized interest on swap agreements		10,641
Net current period other comprehensive income		34,124
Net current period other comprehensive income attributable to noncontrolling    interests		(7,142	)
Balance at June 30, 2021	$	(47,909	)
Balance at January 1, 2020	$	(31,175	)
Other comprehensive loss before reclassifications - swap agreements		(83,395	)
Reclassification of realized interest on swap agreements		4,092
Net current period other comprehensive loss		(79,303	)
Net current period other comprehensive loss attributable to noncontrolling    interests		20,269
Balance at June 30, 2020	$	(90,209	)

Summary of Change in Noncontrolling Interest

The following tables summarize the change in the noncontrolling interests for the three and six months ended June 30, 2021 and 2020 (dollars in thousands):

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at April 1, 2021	$	94,930		$	522,592		$	617,522
Distributions declared of $0.15 per Common OP Unit		(1,052	)		—			(1,052	)
Net income (loss) for the three months ended June 30, 2021		398			(3,085	)		(2,687	)
Conversion of 7,173 Common OP Units to Common Shares by limited partners of the Operating Partnership		(115	)		—			(115	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(406	)		(257	)		(663	)
Reclassification of realized interest expense on swap agreements		53			1,808			1,861
Noncontrolling interest contributions		—			5,868			5,868
Noncontrolling interest distributions		—			(4,355	)		(4,355	)
Employee Long-term Incentive Plan Unit Awards		2,399			—			2,399
Reallocation of noncontrolling interests (c)		(1,119	)		—			(1,119	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at April 1, 2020	$	93,382		$	483,714		$	577,096
Distributions on Preferred OP Units		(123	)		—			(123	)
Net income for the three months ended June 30, 2020		1,259			44,237			45,496
Conversion of 259,712 Common OP Units to Common Shares by limited partners of the Operating Partnership		(4,072	)		—			(4,072	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(310	)		(1,869	)		(2,179	)
Reclassification of realized interest expense on swap agreements		42			1,125			1,167
Noncontrolling interest contributions		—			21,041			21,041
Noncontrolling interest distributions		—			(1,418	)		(1,418	)
Employee Long-term Incentive Plan Unit Awards		2,142			—			2,142
Noncontrolling interest gain		—			588			588
Reallocation of noncontrolling interests (c)		(1,999	)		—			(1,999	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

	Noncontrolling Interests in Operating Partnership (a)			Noncontrolling Interests in Partially-Owned Affiliates (b)			Total
Balance at January 1, 2021	$	89,431		$	517,808		$	607,239
Distributions declared of $0.30 per Common OP Unit		(2,100	)		—			(2,100	)
Net income (loss) for the six months ended June 30, 2021		868			(6,857	)		(5,989	)
Conversion of 25,973 Common OP Units to Common Shares by limited partners of the Operating Partnership		(409	)		—			(409	)
Other comprehensive income - unrealized gain on valuation of swap agreements		1,494			1,886			3,380
Reclassification of realized interest expense on swap agreements		106			3,656			3,762
Noncontrolling interest contributions		—			17,109			17,109
Noncontrolling interest distributions		—			(11,031	)		(11,031	)
Employee Long-term Incentive Plan Unit Awards		6,448			—			6,448
Reallocation of noncontrolling interests (c)		(750	)		—			(750	)
Balance at June 30, 2021	$	95,088		$	522,571		$	617,659
Balance at January 1, 2020	$	97,670		$	546,987		$	644,657
Distributions declared of $0.29 per Common OP Unit		(1,972	)		—			(1,972	)
Net income (loss) for the six months ended June 30, 2020		923			(7,052	)		(6,129	)
Conversion of 407,594 Common OP Units to Common Shares by limited partners of the Operating Partnership		(6,544	)		—			(6,544	)
Other comprehensive loss - unrealized loss on valuation of swap agreements		(3,451	)		(18,257	)		(21,708	)
Reclassification of realized interest expense on swap agreements		49			1,390			1,439
Noncontrolling interest contributions		—			28,309			28,309
Noncontrolling interest distributions		—			(4,536	)		(4,536	)
Employee Long-term Incentive Plan Unit Awards		5,790			—			5,790
Reallocation of noncontrolling interests (c)		(2,144	)		—			(2,144	)
Noncontrolling interest gain		—			588			588
Cumulative effect of change in accounting principle		—			(11	)		(11	)
Balance at June 30, 2020	$	90,321		$	547,418		$	637,739

(a)Noncontrolling interests in the Operating Partnership are comprised of (i) the limited partners’ 3,101,958 Common OP Units at each of June 30, 2021 and 2020; (ii) 188 Series A Preferred OP Units at each of June 30, 2021 and 2020; (iii) 126,593 Series C Preferred OP Units at each of June 30, 2021 and 2020; and (iv) 3,434,894 and 2,886,207 LTIP units at June 30, 2021 and 2020, respectively, as discussed in Share Incentive Plan (Note 13). Distributions declared for Preferred OP Units are reflected in net income (loss) in the table above.

(b)Noncontrolling interests in partially-owned affiliates comprise third-party interests in Funds II, III, IV and V, and Mervyns II, and six other subsidiaries.

(c)Adjustment reflects the difference between the fair value of the consideration received or paid and the book value of the Common Shares, Common OP Units, Preferred OP Units, and LTIP Units involving changes in ownership.

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Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Activity for Reserves Related to Billed Rents and Straight-line Rents

The activity for the reserves related to billed rents and straight-line rents (including those under specific operating leases where the collection of rents is assessed to be not probable) is as follows:

	Six Months Ended June 30, 2021
	Balance at Beginning of Period		Provision (Recovery)		Adjustments to Valuation Accounts		Deductions			Balance at End of Period
Allowance for credit loss - billed rents	$	30,366	$	1,238	$	—	$	(2,639	)	$	28,965
Straight-line rent reserves		15,042		586		—		(2,329	)		13,299
Total - rents receivable	$	45,408	$	1,824	$	—	$	(4,968	)	$	42,264

Schedule of Lease Cost

Additional disclosures regarding the Company’s leases as lessee are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021			2020
Lease Cost
Finance lease cost:
Amortization of right-of-use assets	$	225		487	$	451		$	1,144
Interest on lease liabilities		97		599		192			1,449
Subtotal		322		1,086		643			2,593
Operating lease cost		2,230		1,725		4,516			3,119
Variable lease cost		19		6		34			22
Total lease cost	$	2,571	$	2,817	$	5,193		$	5,734
Other Information
Weighted-average remaining lease term - finance leases (years)						33.0			33.7
Weighted-average remaining lease term - operating leases (years)						14.4			26.9
Weighted-average discount rate - finance leases						6.3	%		6.2	%
Weighted-average discount rate - operating leases						5.1	%		5.4	%

Schedule of Future Minimum Rental Revenues and Payments for Operating and Capital Leases

The scheduled future minimum (i) rental revenues from rental properties under the terms of non-cancelable tenant leases greater than one year (assuming no new or renegotiated leases or option extensions for such premises) and (ii) rental payments under the terms of all non-cancelable operating and finance leases in which the Company is the lessee, principally for office space, land and equipment, as of June 30, 2021, are summarized as follows (in thousands):

			Minimum Rental Payments
Year Ending December 31,	Minimum Rental Revenues (a)		Operating Leases (b)			Finance Leases (b)
2021 (Remainder)	$	100,375	$	3,010		$	69
2022		205,934		5,368			28
2023		190,196		5,389			—
2024		163,851		5,414			—
2025		133,093		5,329			—
Thereafter		528,888		29,711			12,515
		1,322,337		54,221			12,612
Interest		—		(13,360	)		(6,133	)
Total	$	1,322,337	$	40,861		$	6,479

a)Amount represents contractual lease maturities at June 30, 2021 including any extension options that management determined were reasonably certain of exercise. During 2020, numerous tenants were forced to suspend operations by government mandate as a result of the COVID-19 Pandemic. The Company has negotiated payment agreements with selected tenants which resulted in rent concessions or deferral of rents as discussed further below.

b)Minimum rental payments exclude options or renewals not reasonably certain of exercise.

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Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Summary of Segment Information

The following tables set forth certain segment information for the Company (in thousands):

	For the Three Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	46,000		$	28,660		$	—		$	—		$	74,660
Depreciation and amortization		(17,333	)		(14,012	)		—			—			(31,345	)
Property operating expenses, other operating and real estate taxes		(14,205	)		(11,189	)		—			—			(25,394	)
General and administrative expenses		—			—			—			(10,671	)		(10,671	)
Gain on disposition of properties		—			5,909			—			—			5,909
Operating income		14,462			9,368			—			(10,671	)		13,159
Interest income		—			—			2,054			—			2,054
Realized and unrealized holding gains on investments and other		—			2,841			(130	)		—			2,711
Equity in earnings of unconsolidated affiliates		669			437			—			—			1,106
Interest expense		(7,350	)		(10,255	)		—			—			(17,605	)
Income tax provision		—			—			—			(194	)		(194	)
Net income		7,781			2,391			1,924			(10,865	)		1,231
Net (income) loss attributable to noncontrolling interests		(406	)		3,093			—			—			2,687
Net income attributable to Acadia	$	7,375		$	5,484		$	1,924		$	(10,865	)	$	3,918

	For the Three Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing		Unallocated			Total
Revenues	$	38,602		$	25,171		$	—	$	—		$	63,773
Depreciation and amortization		(18,150	)		(15,643	)		—		—			(33,793	)
Property operating expenses, other operating and real estate taxes		(17,961	)		(9,542	)		—		—			(27,503	)
General and administrative expenses		—			—			—		(8,720	)		(8,720	)
Gain on disposition of properties		—			485			—		—			485
Operating income		2,491			471			—		(8,720	)		(5,758	)
Interest income		—			—			2,095		—			2,095
Realized and unrealized holding gains on investments and other		—			87,751			60		—			87,811
Equity in (losses) earnings of unconsolidated affiliates		(1,070	)		284			—		—			(786	)
Interest expense		(8,602	)		(9,717	)		—		—			(18,319	)
Income tax provision		—			—			—		(137	)		(137	)
Net (loss) income		(7,181	)		78,789			2,155		(8,857	)		64,906
Net loss (income) attributable to noncontrolling interests		5,068			(50,564	)		—		—			(45,496	)
Net (loss) income attributable to Acadia	$	(2,113	)	$	28,225		$	2,155	$	(8,857	)	$	19,410

	As of or for the Six Months Ended June 30, 2021
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	88,350		$	55,704		$	—		$	—		$	144,054
Depreciation and amortization		(34,220	)		(28,515	)		—			—			(62,735	)
Property operating expenses, other operating and real estate taxes		(27,862	)		(22,471	)		—			—			(50,333	)
General and administrative expenses		—			—			—			(19,667	)		(19,667	)
Gain on disposition of properties		4,612			5,909			—			—			10,521
Operating income		30,880			10,627			—			(19,667	)		21,840
Interest income		—			—			3,754			—			3,754
Realized and unrealized holding gains on investments and other		—			9,388			(170	)		—			9,218
Equity in (losses) earnings of unconsolidated affiliates		(459	)		3,828			—			—			3,369
Interest expense		(14,564	)		(20,182	)		—			—			(34,746	)
Income tax provision		—			—			—			(344	)		(344	)
Net income		15,857			3,661			3,584			(20,011	)		3,091
Net (income) loss attributable to noncontrolling interests		(1,013	)		7,002			—			—			5,989
Net income attributable to Acadia	$	14,844		$	10,663		$	3,584		$	(20,011	)	$	9,080
Real estate at cost (a)	$	2,323,767		$	1,719,486		$	—		$	—		$	4,043,253
Total assets (a)	$	2,209,033		$	1,763,299		$	117,280		$	—		$	4,089,612
Cash paid for acquisition of real estate	$	—		$	—		$	—		$	—		$	—
Cash paid for development and property improvement costs	$	5,465		$	11,155		$	—		$	—		$	16,620

	As of or for the Six Months Ended June 30, 2020
	Core Portfolio			Funds			Structured Financing			Unallocated			Total
Revenues	$	78,535		$	56,658		$	—		$	—		$	135,193
Depreciation and amortization		(35,207	)		(31,963	)		—			—			(67,170	)
Property operating expenses, other operating and real estate taxes		(29,775	)		(21,495	)		—			—			(51,270	)
General and administrative expenses		—			—			—			(17,790	)		(17,790	)
Impairment charges		—			(51,549	)		—			—			(51,549	)
Gain on disposition of properties		—			485			—			—			485
Operating income (loss)		13,553			(47,864	)		—			(17,790	)		(52,101	)
Interest income		—			—			5,024			—			5,024
Realized and unrealized holding gains on investments and other		—			87,751			(470	)		—			87,281
Equity in earnings (losses) of unconsolidated affiliates		572			(103	)		—			—			469
Interest expense		(16,852	)		(19,769	)		—			—			(36,621	)
Income tax benefit		—			—			—			815			815
Net (loss) income		(2,727	)		20,015			4,554			(16,975	)		4,867
Net loss (income) attributable to noncontrolling interests		6,284			(155	)		—			—			6,129
Net income attributable to Acadia	$	3,557		$	19,860		$	4,554		$	(16,975	)	$	10,996
Real estate at cost (a)	$	2,362,334		$	1,799,890		$	—		$	—		$	4,162,224
Total assets (a)	$	2,323,986		$	1,870,070		$	134,692		$	—		$	4,328,748
Cash paid for acquisition of real estate	$	19,963		$	1,245		$	—		$	—		$	21,208
Cash paid for development and property improvement costs	$	6,443		$	14,090		$	—		$	—		$	20,533

a)Real estate at cost and total assets for the Funds segment include $650.6 million and $604.8 million, or $189.0 million and $176.0 million net of non-controlling interests, related to Fund II’s City Point property at June 30, 2021 and 2020, respectively.  

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Share Incentive and Other Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Unvested Restricted Shares and LTIP Units

A summary of the status of the Company’s unvested Restricted Shares and LTIP Units is presented below:

Unvested Restricted Shares and LTIP Units	Common Restricted Shares			Weighted Grant-Date Fair Value		LTIP Units			Weighted Grant-Date Fair Value
Unvested at January 1, 2020		42,390		$	23.73		936,180		$	28.24
Granted		66,824			13.70		440,829			19.64
Vested		(19,264	)		27.72		(250,241	)		30.44
Forfeited		(39	)		24.77		(3,879	)		24.67
Unvested at December 31, 2020		89,911			15.42		1,122,889			24.38
Granted		43,078			19.94		666,297			19.48
Vested		(43,084	)		16.85		(283,024	)		26.66
Forfeited		(159	)		36.22		(91,637	)		36.22
Unvested at June 30, 2021		89,746		$	16.87		1,414,525		$	20.85

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Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended June 30,						Six Months Ended June 30,
(dollars in thousands)	2021			2020			2021			2020
Numerator:
Net income attributable to Acadia	$	3,918		$	19,410		$	9,080		$	10,996
Less: net income attributable to participating securities		(156	)		(244	)		(312	)		(233	)
Income from continuing operations net of income attributable to participating securities	$	3,762		$	19,166		$	8,768		$	10,763
Denominator:
Weighted average shares for basic earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Effect of dilutive securities:
Employee unvested restricted shares		—			—			—			—
Denominator for diluted earnings per share		86,824,445			86,179,950			86,575,240			86,575,751
Basic and diluted earnings and basic income per Common Share from continuing operations attributable to Acadia	$	0.04		$	0.22		$	0.10		$	0.12
Anti-Dilutive Shares Excluded from Denominator:
Series A Preferred OP Units		188			188			188			188
Series A Preferred OP Units - Common share equivalent		25,067			25,067			25,067			25,067
Series C Preferred OP Units		126,593			126,593			126,593			126,593
Series C Preferred OP Units - Common share equivalent		439,556			439,556			439,556			439,556
Restricted shares		70,827			76,433			70,827			76,433

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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2021 Segment Property $ / shares	Dec. 31, 2020 $ / shares
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Limited partnership to common stock conversion ratio	100.00%
Common shares of beneficial interest, par value | $ / shares	$ 0.001	$ 0.001
Number of retail properties	180
Number of reportable segments | Segment	3
Core Portfolio
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of retail properties	130
Properties owned percentage	100.00%
Opportunity Funds
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of retail properties	50
Operating Partnership, as General Partner or Managing Member
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining funds rate of distribution to operating partnership (in percent)	20.00%
Operating Partnership, as General Partner or Managing Member | Acadia's OP Ownership
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Equity interest held by Operating Partnership	95.00%	95.00%
Institutional Investors
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Remaining funds rate of distribution to all partners (in percent)	80.00%

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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Operating Partnership's Equity Interest (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Fund II and Mervyns II
Variable Interest Entity [Line Items]
Operating Partnership Share of Capital	28.33%
Capital Called	$ 373.4
Unfunded Commitment	$ 11.9
Equity interest held by Operating Partnership	28.33%
Preferred Return	8.00%
Total Distributions	$ 169.8
Fund III
Variable Interest Entity [Line Items]
Operating Partnership Share of Capital	24.54%
Capital Called	$ 448.1
Unfunded Commitment	$ 1.9
Equity interest held by Operating Partnership	24.54%
Preferred Return	6.00%
Total Distributions	$ 568.8
Fund IV
Variable Interest Entity [Line Items]
Operating Partnership Share of Capital	23.12%
Capital Called	$ 488.1
Unfunded Commitment	$ 41.9
Equity interest held by Operating Partnership	23.12%
Preferred Return	6.00%
Total Distributions	$ 193.1
Fund V
Variable Interest Entity [Line Items]
Operating Partnership Share of Capital	20.10%
Capital Called	$ 217.1
Unfunded Commitment	$ 302.9
Equity interest held by Operating Partnership	20.10%
Preferred Return	6.00%
Total Distributions	$ 36.9

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Organization, Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Operating Partnership's Equity Interest (Parenthetical) (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Aug. 31, 2020	Jun. 30, 2021	Apr. 08, 2021
Mervyns II
Variable Interest Entity [Line Items]
Recallable distributions	$ 15.7
Distribution recalled during period		$ 3.8
Mervyns II | Acadia
Variable Interest Entity [Line Items]
Recallable distributions	$ 4.5
Distribution recalled during period		$ 1.1
Fund V
Variable Interest Entity [Line Items]
Investment, maturity date			Aug. 25, 2022

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Real Estate - Schedule of Real Estate (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Acquisition And Disposition Of Properties And Discontinued Operations [Abstract]
Land	$ 761,029	$ 776,275
Buildings and improvements	2,825,549	2,848,781
Tenant improvements	204,542	191,046
Construction in progress	9,427	5,751
Right-of-use assets - finance leases	25,086	25,086
Total	3,825,633	3,846,939
Less: Accumulated depreciation and amortization	(624,461)	(586,800)
Operating real estate, net	3,201,172	3,260,139
Real estate under development	217,620	247,349	$ 253,402
Net investments in real estate	$ 3,418,792	$ 3,507,488

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Real Estate - Schedule of Acquisitions and Conversions (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Purchase Price	$ 0	$ 172,152
Core Portfolio
Business Acquisition [Line Items]
Purchase Price		$ 158,143
Core Portfolio | 917 W. Armitage - Chicago, IL
Business Acquisition [Line Items]
Percent Acquired		100.00%
Purchase Price		$ 3,515
Core Portfolio | Soho Acquisitions | 37 Greene Street - New York, NY
Business Acquisition [Line Items]
Percent Acquired		100.00%
Purchase Price		$ 15,689
Core Portfolio | Town Center | Wilmington, DE
Business Acquisition [Line Items]
Percent Acquired		100.00%
Purchase Price		$ 138,939
Fund IV
Business Acquisition [Line Items]
Purchase Price		$ 14,009
Fund IV | 230-240 W. Broughton Street | GEORGIA
Business Acquisition [Line Items]
Percent Acquired		100.00%
Purchase Price		$ 13,219
Fund IV | 102 E. Broughton Street | GEORGIA
Business Acquisition [Line Items]
Percent Acquired		100.00%
Purchase Price		$ 790

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Real Estate - Acquisitions and Conversions - Additional Information (Details)	12 Months Ended
	Dec. 31, 2020 USD ($)
Acquisition And Disposition Of Properties And Discontinued Operations [Abstract]
Capitalized acquisition costs	$ 1,300,000
Debt assumed	$ 0

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Real Estate - Schedule of Purchase Price Allocations (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Purchase Price Allocation
Land	$ 0	$ 25,440
Buildings and improvements	0	123,459
Accounts receivable, prepaids and other assets	0	5,770
Acquisition-related intangible assets	0	23,061
Right-of-use asset - Operating lease	0	234
Acquisition-related intangible liabilities	0	(4,569)
Lease liability - Operating lease	0	(234)
Accounts payable and other liabilities	0	(1,009)
Net assets acquired	0	172,152
Consideration
Cash	0	21,208
Conversion of note receivable	0	38,674
Conversion of accrued interest	0	1,995
Liabilities assumed	0	116
Existing interest in previously unconsolidated investment	0	109,571
Acquisition of noncontrolling interests	0	588
Total consideration	$ 0	$ 172,152

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Real Estate - Schedule of Property Dispositions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on Sale	$ 5,909	$ 485	$ 10,521	$ 485
Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale Price			66,325		$ 22,413
Gain on Sale			$ 9,787		$ 683
Core Portfolio | Disposed of by sale | 60 Orange St - Bloomfield, NJ.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold			Jan. 29, 2021
Sale Price			$ 16,400
Gain on Sale			$ 4,612
Core Portfolio | Disposed of by sale | 163 Highland Ave. (Easement) - Needham, MA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold					Mar. 19, 2020
Sale Price					$ 238
Gain on Sale					$ 88
Core Portfolio | Disposed of by sale | Union Township (Parcel) - New Castle, PA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold					Dec. 11, 2020
Sale Price					$ 200
Gain on Sale					$ 86
Fund IV | Disposed of by sale | NE Grocer Portfolio (Selected Assets) - Maine
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold			Jun. 18, 2021
Sale Price			$ 39,925
Gain on Sale			$ 5,064
Fund IV | Disposed of by sale | Colonie Plaza - Albany, NY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold					Apr. 13, 2020
Sale Price					$ 15,250
Gain on Sale					$ 485
Fund IV | Disposed of by sale | Airport Mall (Parcel) - Bangor, ME
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold					Sep. 10, 2020
Sale Price					$ 400
Gain on Sale					$ 24
Fund III | Disposed of by sale | 654 Broadway - New York, NY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold			May 19, 2021
Sale Price			$ 10,000
Gain on Sale			$ 111
Fund III | Disposed of by sale | Cortlandt Crossing (Sewer Project and Retention Pond) - Cortlandt, NY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Date Sold					Nov. 30, 2020
Sale Price					$ 6,325
Gain on Sale					$ 0

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Real Estate - Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
STATEMENTS OF INCOME
Gain on disposition of properties	$ 5,909	$ 485	$ 10,521	$ 485
Disposal Group, Not Discontinued Operations
STATEMENTS OF INCOME
Revenues	1,557	2,631	3,570	5,468
Expenses	1,979	2,513	3,863	5,397
Gain on disposition of properties	5,909	485	10,521	485
Net income attributable to noncontrolling interests	4,218	395	4,320	307
Net income attributable to Acadia	$ 1,269	$ 208	$ 5,908	$ 249

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Real Estate - Schedule of Development in Process Activities (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($) Property	Dec. 31, 2020 USD ($) Property	Dec. 31, 2019 USD ($) Property
Property, Plant and Equipment [Line Items]
Number of properties under development | Property	2	3	3
Real estate under development, beginning balance	$ 217,620	$ 247,349	$ 253,402
Transfers In	0	66,812
Capitalized Costs	4,846	8,062
Transfers Out	$ (34,575)	$ (80,927)
Core Portfolio
Property, Plant and Equipment [Line Items]
Number of properties under development | Property	0	0	0
Real estate under development, beginning balance	$ 41,884	$ 63,875	$ 60,863
Transfers In	0	0
Capitalized Costs	1,222	3,012
Transfers Out	$ (23,213)	$ 0
Fund Portfolio | Fund II
Property, Plant and Equipment [Line Items]
Number of properties under development | Property	0	0	0
Real estate under development, beginning balance	$ 75,641	$ 74,657	$ 10,703
Transfers In	0	66,812
Capitalized Costs	984	3,612
Transfers Out	$ 0	$ (6,470)
Fund Portfolio | Fund III
Property, Plant and Equipment [Line Items]
Number of properties under development | Property	1	1	1
Real estate under development, beginning balance	$ 23,685	$ 23,139	$ 36,240
Transfers In	0	0
Capitalized Costs	546	70
Transfers Out	$ 0	$ (13,171)
Fund Portfolio | Fund IV
Property, Plant and Equipment [Line Items]
Number of properties under development | Property	1	2	2
Real estate under development, beginning balance	$ 76,410	$ 85,678	$ 145,596
Transfers In	0	0
Capitalized Costs	2,094	1,368
Transfers Out	$ (11,362)	$ (61,286)

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Real Estate - Schedule of Development in Process Activities (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Notes receivable, net	$ 101,450	$ 101,450	$ 117,280
Fund II
Property, Plant and Equipment [Line Items]
Notes receivable, net	33,800	33,800
Fund Portfolio
Property, Plant and Equipment [Line Items]
Notes receivable, net	33,800	33,800
Fund Portfolio | Fund IV
Property, Plant and Equipment [Line Items]
Impairment charge	$ 16,500	$ 16,500

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Real Estate - Real Estate Under Development and Construction in Progress - Additional Information (Details) $ in Thousands	3 Months Ended				12 Months Ended
	Jun. 30, 2021 USD ($) Property	Mar. 31, 2021 Property	Dec. 31, 2020 USD ($) Property	Mar. 31, 2020 Property	Dec. 31, 2020 USD ($)
Property, Plant and Equipment [Line Items]
Notes receivable, net	$ 117,280		$ 101,450		$ 101,450
Fund IV
Property, Plant and Equipment [Line Items]
Number of projects put into service during period | Property				1
Fund II
Property, Plant and Equipment [Line Items]
Notes receivable, net			33,800		33,800
Core Portfolio
Property, Plant and Equipment [Line Items]
Number of projects put into service during period | Property	1
Notes receivable, net	$ 16,000
Fund Portfolio
Property, Plant and Equipment [Line Items]
Notes receivable, net			$ 33,800		33,800
Fund Portfolio | Fund IV
Property, Plant and Equipment [Line Items]
Number of projects put into service during period | Property		1	2
Impairment charge			$ 16,500		$ 16,500
Cortlandt Crossing | Fund III
Property, Plant and Equipment [Line Items]
Number of projects put into service during period | Property				1

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Notes Receivable, Net - Schedule of Notes Receivable (Details) $ in Thousands		6 Months Ended
		Jun. 30, 2021 USD ($) NotesReceivable	Dec. 31, 2020 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Total notes receivable		$ 118,100	$ 102,100
Allowance for credit loss		(820)	(650)
Notes Receivable Net		$ 117,280	101,450
Number | NotesReceivable		8
Interest Rate		9.00%
Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total notes receivable	[1]	$ 112,794	96,794
Number | NotesReceivable	[1]	7
Core Portfolio | Minimum
Accounts Notes And Loans Receivable [Line Items]
Maturity Date		2020-04
Interest Rate	[1]	4.65%
Core Portfolio | Maximum
Accounts Notes And Loans Receivable [Line Items]
Maturity Date		2027-12
Interest Rate	[1]	9.00%
Fund III | Fund Portfolio
Accounts Notes And Loans Receivable [Line Items]
Total notes receivable		$ 5,306	$ 5,306
Number | NotesReceivable		1
Maturity Date		2020-07
Interest Rate		18.00%

[1] Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020

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Notes Receivable, Net - Schedule of Notes Receivable (Parenthetical) (Details)		Jun. 30, 2021 USD ($) NotesReceivable	Dec. 31, 2020 USD ($)
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable		8
Notes receivable | $		$ 118,100,000	$ 102,100,000
Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable	[1]	7
Notes receivable | $	[1]	$ 112,794,000	96,794,000
OP Unit Holders
Accounts Notes And Loans Receivable [Line Items]
Number of notes receivable | NotesReceivable		2
OP Unit Holders | Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Notes receivable | $		$ 6,500	$ 6,500

[1] Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020

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Notes Receivable, Net - Additional Information (Details) - USD ($)		6 Months Ended	12 Months Ended
		Jun. 30, 2021	Dec. 31, 2020
Accounts Notes And Loans Receivable [Line Items]
Increase in allowance for credit loss		$ 200
Notes receivable		118,100,000	$ 102,100,000
Note receivable accrued interest		17,263,000	13,917,000
Notes Receivable		117,280,000	101,450,000
Credit loss reserve		820,000	650,000
Notes receivable, net		$ 117,280,000	101,450,000
Interest Rate		9.00%
Additional credit loss reserve			300,000
Aggregate loans		$ 117,280,000	101,450,000
LUF Portfolio
Accounts Notes And Loans Receivable [Line Items]
Note receivable accrued interest			$ 5,000,000.0
Interest Rate			8.00%
Percentage of mortgage loan collateralized			5000.00%
Core Note
Accounts Notes And Loans Receivable [Line Items]
Notes receivable modified, subsequent payment default			$ 21,600,000
850 Third Avenue Brooklyn, NY
Accounts Notes And Loans Receivable [Line Items]
Notes Receivable			54,000,000.0
Notes receivable, net			$ 54,000,000.0
Interest Rate			9.00%
Fund II
Accounts Notes And Loans Receivable [Line Items]
Notes receivable			$ 33,800,000
Note receivable accrued interest			600,000
Notes Receivable			33,800,000
Notes receivable, net			33,800,000
Fund III
Accounts Notes And Loans Receivable [Line Items]
Notes receivable modified, subsequent payment default		10,000,000.0
ASU 2016-13
Accounts Notes And Loans Receivable [Line Items]
Credit loss reserve			400,000
Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Notes receivable	[1]	112,794,000	96,794,000
Notes Receivable		16,000,000.0
Notes receivable, net		16,000,000.0
Structured Financing
Accounts Notes And Loans Receivable [Line Items]
Note receivable accrued interest		8,800,000
Aggregate loans		38,400,000
Structured Financing | Non-Collateral Dependent Loans
Accounts Notes And Loans Receivable [Line Items]
Note receivable accrued interest		8,500,000
Credit loss reserve		800,000
Loans amortized cost		$ 97,000,000.0
Brandywine Portfolio | Core Portfolio
Accounts Notes And Loans Receivable [Line Items]
Notes receivable			38,700,000
Note receivable accrued interest			$ 2,000,000.0
Equity method investment, ownership percentage by third party			24.78%

[1] Includes two notes receivable from OP Unit holders, with balances totaling $6.5 million at June 30, 2021 and December 31, 2020

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Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Due from (to) Related Parties	$ 467	$ 363
Other	3,018	1,881
Investments in and advances to unconsolidated affiliates	258,063	249,807
Distributions in excess of income from, and investments in, unconsolidated affiliates	$ 14,896	15,616
KLA/ABS
Schedule of Equity Method Investments [Line Items]
Cost method investment, ownership percentage	36.70%
Cost Method Investment	$ 80,956	72,391
Self Storage Management
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	95.00%
Equity method investments	$ 207	207
Fund IV Other Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	98.57%
Equity method investments	$ 12,327	11,719
650 Bald Hill Road
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 11,714	12,550
Fund IV
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 24,041	24,269
Fund V Family Center at Riverdale
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	89.42%
Equity method investments	$ 12,927	11,824
Tri City Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 6,904	7,024
Frederick County Acquisitions
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	90.00%
Equity method investments	$ 10,895	10,837
Fund V
Schedule of Equity Method Investments [Line Items]
Equity method investments	30,726	29,685
Core Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 118,648	121,011
Core Portfolio | 840 N. Michigan
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	88.43%
Equity method investments	$ 53,869	55,863
Core Portfolio | Renaissance Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	20.00%
Equity method investments	$ 28,835	29,270
Core Portfolio | Gotham Plaza
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Equity method investments	$ 28,796	28,683
Core Portfolio | Georgetown Portfolio
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investments	$ 3,796	4,624
Core Portfolio | 1238 Wisconsin Avenue
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	80.00%
Equity method investments	$ 3,352	2,571
Core Portfolio | Crossroads
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	49.00%
Distributions in excess of income from, and investments in, unconsolidated affiliates	$ 14,896	$ 15,616

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Investments in and Advances to Unconsolidated Affiliates - Core Portfolio - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 04, 2021	Dec. 31, 2020	Jun. 30, 2021	Apr. 01, 2020
Schedule of Equity Method Investments [Line Items]
Cost method investments		$ 1,881	$ 3,018
Riverdale
Schedule of Equity Method Investments [Line Items]
Repayment related to mortgage	$ 7,900
Recognized gain in shares amount	600
Proceeds from sale of property	10,500
Mervyns II
Schedule of Equity Method Investments [Line Items]
Cost method investments			$ 800
Core Portfolio | Fifth Wall Ventures Retail Fund, L.P.
Schedule of Equity Method Investments [Line Items]
Cost method investments	1,100			$ 400
Impairment of investments		$ 400
Core Portfolio | Brandywine Portfolio
Schedule of Equity Method Investments [Line Items]
Cost method investment ownership percentage				24.78%
Note receivable exchanged	$ 38,700
Note receivable accrued interest				$ 2,000
Equity method investment, controlling interest percentage				100.00%

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Investments in and Advances to Unconsolidated Affiliates - Mervyns I & II - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 31, 2020	Jun. 30, 2020	Jun. 30, 2021	Dec. 31, 2020
Mervyns II
Schedule Of Equity Method Investments [Line Items]
Realized gain on investment	$ 0.4	$ 22.8
Cost method investments effective ownership, shares			4.1
Cost method investments effective ownership interest			1.00%
Unrealized gain on investment		$ 64.9	$ 8.6
Albertson
Schedule Of Equity Method Investments [Line Items]
Unrealized gain on investment				$ 7.5

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Investments in and Advances to Unconsolidated Affiliates - Fund Investments - Additional Information (Details) $ in Millions	Jun. 30, 2021 Property	Jun. 30, 2020 Property	May 26, 2020 USD ($) Property
Schedule of Equity Method Investments [Line Items]
Number of retail properties	180
Broughton St. Portfolio Savannah, GA
Schedule of Equity Method Investments [Line Items]
Number of retail properties			2
Purchase Price | $			$ 1.3
Consolidated Affiliates | BSP II
Schedule of Equity Method Investments [Line Items]
Number of retail properties		2

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Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Additional Information (Details) - Equity Method Investee - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Schedule of Equity Method Investments [Line Items]
Related party revenue	$ 0.1	$ 0.1	$ 0.2	$ 0.2
Expenses, related party	$ 0.3	$ 0.4	$ 0.7	$ 1.4

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Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Schedule of Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Combined and Condensed Balance Sheets
Real estate under development	$ 217,620	$ 247,349
Other assets	159,592	173,809
Total assets	4,089,612	4,186,882	$ 4,328,748
Total liabilities and equity	4,089,612	4,186,882
Company's share of distributions in excess of income from and investments in unconsolidated affiliates	14,896	15,616
Investments in and advances to unconsolidated affiliates	258,063	249,807
Unconsolidated Affiliates
Combined and Condensed Balance Sheets
Rental property, net	556,800	563,997
Real estate under development	12,900	14,517
Other assets	63,060	61,969
Total assets	632,760	640,483
Mortgage notes payable	507,111	512,490
Other liabilities	72,577	74,872
Partners’ equity	53,072	53,121
Total liabilities and equity	632,760	640,483
Company's share of accumulated equity	100,237	100,767
Basis differential	54,320	55,017
Deferred fees, net of portion related to the Company's interest	3,962	3,565
Amounts receivable/payable by the Company	467	363
Investments in and advances to unconsolidated affiliates, net of Company's share of distributions in excess of income from and investments in unconsolidated affiliates	158,986	159,712
Investments carried at fair value or cost	84,181	74,479
Company's share of distributions in excess of income from and investments in unconsolidated affiliates	14,896	15,616
Investments in and advances to unconsolidated affiliates	$ 258,063	$ 249,807

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Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Schedule of Condensed Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Combined and Condensed Statements of Operations
Depreciation and amortization	$ (31,345)	$ (33,793)	$ (62,735)	$ (67,170)
Equity in earnings (losses) of unconsolidated affiliates	1,106	(786)	3,369	469
Unconsolidated Affiliates
Combined and Condensed Statements of Operations
Revenues	19,541	16,372	36,822	36,714
Operating and other expenses	6,814	6,183	13,033	13,607
Interest expense	(4,581)	(5,014)	(9,403)	(10,270)
Depreciation and amortization	(5,676)	(6,524)	(14,477)	(12,885)
Gain on disposition of properties	0	0	3,206	0
Net income (loss) attributable to unconsolidated affiliates	2,470	(1,349)	3,115	(48)
Operating Partnership, as General Partner or Managing Member
Combined and Condensed Statements of Operations
Company’s share of equity in net income of unconsolidated affiliates	1,368	(510)	4,066	(174)
Basis differential amortization	262	322	697	648
Income attributable to unconsolidated affiliated recently sold or consolidated	0	46	0	1,291
Equity in earnings (losses) of unconsolidated affiliates	$ 1,106	$ (786)	$ 3,369	$ 469

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Investments in and Advances to Unconsolidated Affiliates - Unconsolidated Affiliates - Schedule of Condensed Income Statement (Parenthetical) (Details)	Jan. 04, 2021 LandParcel
Equity Method Investments And Joint Ventures [Abstract]
Number of land parcels sold by the Family Center at Riverdale	2

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Other Assets, Net and Accounts Payable and Other Liabilities - Schedule of other assets and other liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Assets, Net:
Lease intangibles, net (Note 6)	$ 83,722	$ 100,732
Deferred charges, net	31,850	30,488
Accrued interest receivable	17,263	13,917
Prepaid expenses	15,507	17,468
Due from seller	3,364	3,682
Income taxes receivable	2,015	2,433
Other receivables	1,904	2,058
Deposits	2,709	1,728
Corporate assets, net	1,257	1,302
Derivative financial instruments (Note 8)	1	1
Other assets, net	159,592	173,809
Deferred Charges, Net:
Deferred leasing and other costs	59,377	57,533
Deferred financing costs related to line of credit	9,757	11,341
Deferred costs, gross	69,134	68,874
Accumulated amortization	(37,284)	(38,386)
Deferred charges, net	31,850	30,488
Accounts Payable and Other Liabilities:
Lease intangibles, net (Note 6)	$ 66,982	$ 76,434
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accounts payable and other liabilities	Accounts payable and other liabilities
Accounts payable and accrued expenses	$ 57,582	$ 53,031
Derivative financial instruments (Note 8)	60,979	90,139
Deferred income	34,928	31,842
Tenant security deposits, escrow and other	12,106	12,178
Lease liability - finance leases, net (Note 11)	6,479	6,287
Accounts payable and other liabilities	$ 239,056	$ 269,911

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Lease Intangibles - Schedule of Intangible Assets and Liabilities Included in Other Assets and Accounts Payable and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	$ 278,506	$ 287,523
Amortizable Intangible Assets, Accumulated Amortization	194,784	186,791
Amortizable Intangible Assets, Net Carrying Amount	83,722	100,732
Amortizable Intangible Liabilities
Amortizable Intangible Liabilities, Gross Carrying Amount	(157,590)	(164,923)
Amortizable Intangible Liabilities, Accumulated Amortization	91,041	88,951
Amortizable Intangible Liabilities, Net Carrying Amount	(66,549)	(75,972)
Above-market Ground Lease, Gross	(671)	(671)
Above-market Ground Lease, Accumulated Amortization	238	209
Above-market Ground Lease, Net	(433)	(462)
Finite-Lived Intangible Liabilities, Gross	(158,261)	(165,594)
Finite-Lived Intangible Liabilities, Accumulated Amortization	91,279	89,160
Finite-Lived Intangible Liabilities, Net	(66,982)	(76,434)
In-place lease intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	259,391	268,335
Amortizable Intangible Assets, Accumulated Amortization	179,197	171,856
Amortizable Intangible Assets, Net Carrying Amount	80,194	96,479
Amortizable Intangible Liabilities
Amortizable Intangible Liabilities, Net Carrying Amount	(63,021)
Above-market rent
Finite-Lived Intangible Assets [Line Items]
Amortizable Intangible Assets, Gross Carrying Amount	19,115	19,188
Amortizable Intangible Assets, Accumulated Amortization	15,587	14,935
Amortizable Intangible Assets, Net Carrying Amount	$ 3,528	$ 4,253

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Lease Intangibles - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Below market rents, acquired	$ 6.5	$ 4.6
Acquired intangible assets, weighted average useful life		20 years 2 months 12 days
In-place lease intangible assets
Finite-Lived Intangible Assets [Line Items]
Below market rents, acquired	$ 8.8
Intangible assets acquired		$ 21.0
Acquired intangible assets, weighted average useful life		4 years 10 months 24 days
Above-market rent
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 2.0
Acquired intangible assets, weighted average useful life		5 years 9 months 18 days

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Lease Intangibles - Scheduled Amortization of Acquired Lease Intangible Assets and Assumed Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Acquired Lease Intangibles [Abstract]
Net Increase In Lease Revenues, Total	$ 66,549	$ 75,972
Amortizable Intangible Assets, Net Carrying Amount	(83,722)	(100,732)
In-place lease intangible assets
Acquired Lease Intangibles [Abstract]
2021, Net Increase In Lease Revenues	3,205
2022, Net Increase In Lease Revenues	5,929
2023, Net Increase In Lease Revenues	5,460
2024, Net Increase In Lease Revenues	5,106
2025, Net Increase In Lease Revenues	4,435
Thereafter, Net Increase In Lease Revenues	38,886
Net Increase In Lease Revenues, Total	63,021
2021, Increase to Amortization	(11,153)
2022, Increase to Amortization	(17,741)
2023, Increase to Amortization	(13,134)
2024, Increase to Amortization	(9,262)
2025, Increase to Amortization	(6,914)
Thereafter, Increase to Amortization	(21,990)
Amortizable Intangible Assets, Net Carrying Amount	(80,194)	$ (96,479)
2021, Reduction of Rent Expense	29
2022, Reduction of Rent Expense	58
2023, Reduction of Rent Expense	58
2024, Reduction of Rent Expense	58
2025, Reduction of Rent Expense	58
Thereafter, Reduction of Rent Expense	172
Reduction of Rent Expense, Total	433
2021, Net Income (Expense)	(7,919)
2022, Net Income (Expense)	11,754
2023, Net Income (Expense)	7,616
2024, Net Income (Expense)	4,098
2025, Net Income (Expense)	2,421
Thereafter, Net Income (Expense)	17,068
Total, Net Income (Expense)	$ 16,740

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Debt - Summary of Consolidated Indebtedness (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,672,957	$ 1,770,054
Net unamortized debt issuance costs	(9,344)	(6,763)
Unamortized fair market value of assumed debt	497	548
Mortgage and other notes payable, net	1,162,617	1,204,581
Unsecured notes payable, net	440,088	420,858
Total Indebtedness	1,664,110	1,763,839
Mortgages
Debt Instrument [Line Items]
Net unamortized debt issuance costs	(4,828)	(6,507)
Unamortized fair market value of assumed debt	497	548
Mortgage and other notes payable, net	1,162,617	1,204,581
Unsecured Debt
Debt Instrument [Line Items]
Net unamortized debt issuance costs	(4,516)	(256)
Unsecured notes payable, net	$ 440,088	420,858
Core Portfolio | Variable Rate Debt | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Core Portfolio | Variable Rate Debt | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
Core Portfolio | Unsecured Notes Payable | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.55%
Core Portfolio | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross	$ 220,009	228,310
Core Portfolio | Mortgages | Fixed Rate
Debt Instrument [Line Items]
Long-term debt, gross	$ 146,642	$ 147,810
Core Portfolio | Mortgages | Fixed Rate | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	3.88%	3.88%
Maturity Date	2024-02
Core Portfolio | Mortgages | Fixed Rate | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	5.89%	5.89%
Maturity Date	2035-04
Core Portfolio | Mortgages | Variable Rate - Swapped
Debt Instrument [Line Items]
Long-term debt, gross	$ 73,367	$ 80,500
Core Portfolio | Mortgages | Variable Rate - Swapped | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	3.41%	3.41%
Maturity Date	2023-01
Core Portfolio | Mortgages | Variable Rate - Swapped | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	4.54%	4.54%
Maturity Date	2028-11
Core Portfolio | Unsecured Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 400,000	$ 380,000
Core Portfolio | Unsecured Debt | Variable Rate Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 30,000
Core Portfolio | Unsecured Debt | Variable Rate Credit Facility | LIBOR
Debt Instrument [Line Items]
Interest rate, stated percentage		2.55%
Core Portfolio | Unsecured Debt | Variable Rate Unsecured Term Loans - Swapped
Debt Instrument [Line Items]
Maturity Date	2026-06
Long-term debt, gross	$ 400,000	$ 350,000
Core Portfolio | Unsecured Debt | Variable Rate Unsecured Term Loans - Swapped | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	3.65%	2.49%
Core Portfolio | Unsecured Debt | Variable Rate Unsecured Term Loans - Swapped | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	5.32%	5.02%
Core Portfolio | Line of Credit | Unsecured Line of Credit - Swapped
Debt Instrument [Line Items]
Maturity Date	2025-06
Long-term debt, gross	$ 61,405	$ 138,400
Core Portfolio | Line of Credit | Unsecured Line of Credit - Swapped | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage	3.65%	2.49%
Core Portfolio | Line of Credit | Unsecured Line of Credit - Swapped | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage	5.32%	5.02%
Fixed Rate
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,053,715	$ 1,143,152
Variable Rate
Debt Instrument [Line Items]
Long-term debt, gross	619,242	626,902
Fund II | Fund Portfolio
Debt Instrument [Line Items]
Long-term debt, gross	$ 234,110	228,282
Fund II | Fund Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.39%
Fund II | Fund Portfolio | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross	$ 252,771	$ 247,085
Fund II | Fund Portfolio | Mortgages | Variable Rate - Swapped
Debt Instrument [Line Items]
Interest rate, stated percentage	2.88%	2.88%
Maturity Date	2021-11
Long-term debt, gross	$ 18,661	$ 18,803
Fund II | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%	3.00%
Maturity Date	2022-03
Fund II | Fund Portfolio | Mortgages | Variable Rate Debt | Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%	2.00%
Maturity Date	2022-08
Fund II | Fund Portfolio | Unsecured Debt | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.65%	1.65%
Fund II | Fund Portfolio | Unsecured Debt | Unsecured Notes Payable
Debt Instrument [Line Items]
Long-term debt, gross	$ 40,000	$ 40,000
Fund II | Fund Portfolio | Unsecured Debt | Unsecured Notes Payable | LIBOR
Debt Instrument [Line Items]
Maturity Date	2021-09
Fund III | Fund Portfolio | Variable Rate Debt | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Fund III | Fund Portfolio | Variable Rate Debt | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	3.10%
Fund III | Fund Portfolio | Mortgages | Variable Rate Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 71,308	$ 71,918
Fund III | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%	2.75%
Maturity Date	2022-06
Fund III | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	3.10%	3.10%
Maturity Date	2022-07
Fund IV | Fund Portfolio | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Fund IV | Fund Portfolio | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Fund IV | Fund Portfolio | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross	$ 287,756	$ 327,550
Fund IV | Fund Portfolio | Mortgages | Fixed Rate
Debt Instrument [Line Items]
Interest rate, stated percentage	4.50%
Maturity Date	2025-10
Long-term debt, gross	$ 1,120	$ 6,726
Fund IV | Fund Portfolio | Mortgages | Fixed Rate | Minimum
Debt Instrument [Line Items]
Interest rate, stated percentage		3.40%
Fund IV | Fund Portfolio | Mortgages | Fixed Rate | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage		4.50%
Fund IV | Fund Portfolio | Mortgages | Variable Rate - Swapped
Debt Instrument [Line Items]
Long-term debt, gross	$ 42,549	$ 66,590
Fund IV | Fund Portfolio | Mortgages | Variable Rate - Swapped | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	3.48%	3.48%
Maturity Date	2022-04
Fund IV | Fund Portfolio | Mortgages | Variable Rate - Swapped | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	4.61%	4.61%
Maturity Date	2022-12
Fund IV | Fund Portfolio | Mortgages | Variable Rate Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 244,087	$ 254,234
Fund IV | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.60%	1.60%
Maturity Date	2021-07
Fund IV | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	3.40%	3.40%
Maturity Date	2025-10
Fund IV | Fund Portfolio | Unsecured Debt | Term Loan Subscription Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 864
Fund IV | Fund Portfolio | Unsecured Debt | Term Loan Subscription Facility | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%	1.90%
Maturity Date	2021-12
Fund V | Fund Portfolio | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Fund V | Fund Portfolio | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2.20%
Fund V | Fund Portfolio | Mortgages
Debt Instrument [Line Items]
Long-term debt, gross	$ 335,104	$ 335,677
Fund V | Fund Portfolio | Mortgages | Variable Rate - Swapped
Debt Instrument [Line Items]
Long-term debt, gross	$ 304,843	$ 334,323
Fund V | Fund Portfolio | Mortgages | Variable Rate - Swapped | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	2.43%	2.95%
Maturity Date	2021-07
Fund V | Fund Portfolio | Mortgages | Variable Rate - Swapped | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	4.78%	4.78%
Maturity Date	2024-12
Fund V | Fund Portfolio | Mortgages | Variable Rate Debt
Debt Instrument [Line Items]
Long-term debt, gross	$ 30,261	$ 1,354
Fund V | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%	1.50%
Maturity Date	2021-07
Fund V | Fund Portfolio | Mortgages | Variable Rate Debt | LIBOR | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	2.20%	2.20%
Maturity Date	2024-12
Fund V | Fund Portfolio | Unsecured Debt | Subscription Line
Debt Instrument [Line Items]
Long-term debt, gross	$ 4,604	$ 250
Fund V | Fund Portfolio | Unsecured Debt | Subscription Line | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%	1.60%
Maturity Date	2022-05

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Debt - Summary of Consolidated Indebtedness (Parenthetical) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,672,957	$ 1,770,054
Variable-rate debt that subject to interest cap agreements
Debt Instrument [Line Items]
Long-term debt, gross	145,000	139,200
Total Debt - Variable Rate Debt Fixed with Interest Rate Swap Agreements
Debt Instrument [Line Items]
Long-term debt, gross	900,800	988,600
Core Portfolio | Interest Rate Swaps
Debt Instrument [Line Items]
Long-term debt, gross	$ 5,100	3,200
Minimum | Core Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Minimum | Core Portfolio | Unsecured Notes Payable | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.55%
Minimum | Core Portfolio | Unsecured Line of Credit [Member] | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Maximum | Core Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.90%
Fund II | Fund Portfolio
Debt Instrument [Line Items]
Long-term debt, gross	$ 234,110	$ 228,282
Fund II | Fund Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.39%
Fund III | Minimum | Fund Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Fund III | Maximum | Fund Portfolio | Variable Rate Debt | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	3.10%
Fund IV | Minimum | Fund Portfolio | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Fund IV | Maximum | Fund Portfolio | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Fund V | Minimum | Fund Portfolio | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Fund V | Maximum | Fund Portfolio | LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.20%

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Debt - Credit Facility - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Feb. 28, 2018	Jun. 30, 2021
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 900.0
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 300.0
Maturity date		Jun. 29, 2025
Capitalized costs		$ 2.7
Term Loan
Debt Instrument [Line Items]
Capitalized costs		3.1
Term Loan | Third party
Debt Instrument [Line Items]
Capitalized costs		$ 0.1
$400 Million Term Loan
Debt Instrument [Line Items]
Maturity date		Jun. 29, 2026
Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 700.0
Maturity date		Mar. 31, 2023
Unsecured Debt | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 250.0	$ 50.0
Basis spread on variable rate	1.40%	1.40%
Maturity date	Mar. 31, 2022
Unsecured Debt | Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50.0
Unsecured Debt | $300 Million Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 350.0
Basis spread on variable rate	1.30%
Unsecured Debt | $300 Million Term Loan | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		300.0
Unsecured Debt | $400 Million Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 400.0
Basis spread on variable rate		1.55%
Unsecured Debt | $400 Million Term Loan | Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 400.0

XML

Debt - Mortgages and Other Notes Payable - Additional Information (Details) $ in Thousands			3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 29, 2021	Oct. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Mortgage	Jun. 30, 2021 USD ($) Mortgage	Dec. 31, 2020 USD ($) Mortgage	Jul. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Feb. 29, 2020 USD ($)
Debt Instrument [Line Items]
Notes receivable, net			$ 101,450	$ 117,280	$ 101,450
Maximum borrowing capacity				$ 900,000
Mortgages
Debt Instrument [Line Items]
Number of mortgage loans | Mortgage				7
Number of properties collateralized | Mortgage			42	37	42
Mortgages | Subscription Line
Debt Instrument [Line Items]
Number of mortgage loans | Mortgage					7
Notes receivable, net			$ 46,000	$ 125,300	$ 46,000
Mortgages | Subscription Line 1
Debt Instrument [Line Items]
Notes receivable, net			51,300		51,300
Mortgages | Subscription Line 2
Debt Instrument [Line Items]
Notes receivable, net			40,000	25,900	40,000
Mortgages | Subscription Line 3
Debt Instrument [Line Items]
Notes receivable, net			88,000	12,000	88,000
Fund IV
Debt Instrument [Line Items]
Repayments of debt				23,500
Fund IV | Bridge Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				79,200
Repayments of debt				$ 10,000
Maturity date	Jun. 30, 2021			Dec. 31, 2021
LIBOR plus	2.00%			2.50%
LIBOR floor				0.25%
Fund IV | Mortgages
Debt Instrument [Line Items]
Holdback mortgage loan			23,800		23,800
Holdback mortgage loan outstanding			18,900		18,900
Holdback mortgage loan drew an additional						$ 900	$ 1,000
Fund IV | Mortgages One | Colonie Plaza - Albany, NY
Debt Instrument [Line Items]
Repayments of debt					11,600
Fund V | Mortgages
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 4,600
Maturity date				May 02, 2022
LIBOR plus	1.60%			1.90%
Core Portfolio
Debt Instrument [Line Items]
Notes receivable, net				$ 16,000
Repayments of debt					26,300
Derivative, notional amount				539,898
Core Portfolio | Sixty Orange Street | Disposed of by sale
Debt Instrument [Line Items]
Repayments of debt				6,700
Scheduled principal payment				4,000
Core Portfolio | Mortgages | Brandywine Portfolio
Debt Instrument [Line Items]
Debt default, amount				$ 26,300
Debt instrument, maturity date				Jul. 01, 2016
Gain (loss) on litigation settlement		$ 30,000
Acquisition of noncontrolling interest		$ 15,900
Core Portfolio | Mortgages | Brandywine Portfolio | Acadia's OP Ownership
Debt Instrument [Line Items]
Equity interest held by Operating Partnership		77.78%
Core Portfolio | Mortgages | Realized and Unrealized Holding Gains on Investments and Other | Brandywine Portfolio
Debt Instrument [Line Items]
Gain on debt extinguishment			18,300
Proportionate share		$ 4,100
Fund II | Mortgages
Debt Instrument [Line Items]
Notes receivable, net			200,000		200,000
Fund III and Fund IV | Mortgages
Debt Instrument [Line Items]
Holdback mortgage loan			103,400		103,400
Fund Loans Repaid			11,500		11,500
Interest Rate Swaps
Debt Instrument [Line Items]
Derivative, notional amount			$ 30,400		$ 30,400			$ 50,000
Interest Rate Swaps | New Towne Plaza
Debt Instrument [Line Items]
Derivative, notional amount				$ 16,700
Cash proceeds from swaps				$ 3,400

XML

Debt - Unsecured Notes Payable - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Jul. 01, 2020
Debt Instrument [Line Items]
Long-term debt outstanding	$ 1,672,957	$ 1,770,054
Maximum borrowing capacity	900,000
Letters of credit, outstanding amount	33,800	35,600
Fund Portfolio | Fund II
Debt Instrument [Line Items]
Long-term debt outstanding	234,110	228,282
Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	700,000
Unsecured Debt | Fund IV | Letter of Credit
Debt Instrument [Line Items]
Letters of credit, outstanding amount	3,600	3,600
Unsecured Debt | Core Portfolio
Debt Instrument [Line Items]
Long-term debt outstanding	400,000	380,000
Term Loan
Debt Instrument [Line Items]
Term loan	$ 0	30,000	$ 30,000
Debt instrument, maturity date	Jun. 30, 2021
LIBOR plus			2.55%
LIBOR floor			0.75%
Term Loan | Maximum
Debt Instrument [Line Items]
Debt available balance			$ 90,000
Unsecured Notes Payable | Unsecured Debt
Debt Instrument [Line Items]
Debt available balance	$ 124,600	128,700
Unsecured Notes Payable | Unsecured Debt | Fund Portfolio | Fund II
Debt Instrument [Line Items]
Long-term debt outstanding	40,000	40,000
Three Hundred And Fifty Millions Term Loan | Unsecured Debt | Core Portfolio
Debt Instrument [Line Items]
Long-term debt outstanding		350,000
Four Hundred Million Term Loan [Member] | Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	400,000
Four Hundred Million Term Loan [Member] | Unsecured Debt | Core Portfolio
Debt Instrument [Line Items]
Long-term debt outstanding	400,000
Term Loan Maturing In September 2020 | Secured Debt | Fund II
Debt Instrument [Line Items]
Maximum borrowing capacity	40,000
Long-term line of credit, noncurrent	40,000	40,000
Remaining borrowing capacity	0	0
Subscription Line | Unsecured Debt | Fund IV
Debt Instrument [Line Items]
Maximum borrowing capacity	5,000
Long-term line of credit, noncurrent	0	900
Remaining borrowing capacity	1,400	500
Subscription Line | Unsecured Debt | Fund V
Debt Instrument [Line Items]
Maximum borrowing capacity	150,000
Subscription Line | Unsecured Debt | Fund V | Letter of Credit
Debt Instrument [Line Items]
Letters of credit, outstanding amount	22,200	21,500
Subscription Line | Unsecured Debt | Fund Portfolio | Fund V
Debt Instrument [Line Items]
Long-term debt outstanding	4,604	250
Remaining borrowing capacity	$ 123,200	$ 128,200

XML

Debt - Unsecured Revolving Lines of Credit - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020	Feb. 28, 2018
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 900.0
Letters of credit, outstanding amount	33.8	$ 35.6
Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	700.0
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	300.0
Revolving Credit Facility | Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	50.0		$ 250.0
Core Portfolio | Revolving Credit Facility | Unsecured Debt
Debt Instrument [Line Items]
Debt available balance	230.6	101.1
Credit facility amount outstanding	61.4	138.4
Letters of credit, outstanding amount	$ 8.0	$ 10.5

XML

Debt - Scheduled Principal Repayments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
2021	$ 212,969
2022	529,299
2023	59,361
2024	212,020
2025	126,732
Thereafter	532,576
Long-term debt and convertible notes payable	1,672,957	$ 1,770,054
Unamortized premium	497	548
Net unamortized debt issuance costs	(9,344)	(6,763)
Total Indebtedness	$ 1,664,110	$ 1,763,839

XML

Debt - Scheduled Principal Repayments - Additional Information (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Debt Instrument [Line Items]
Contractual due 2021	$ 212,969
Contractual due 2022	529,299
Contractual due 2023	59,361
Debt With Extension Options
Debt Instrument [Line Items]
Contractual due 2021	172,400
Contractual due 2022	179,400
Contractual due 2023	$ 41,500

XML

Financial Instruments and Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Fair value, asset derivatives	$ 1	$ 1
Liabilities
Derivative financial instruments	60,979	90,139
Recurring | Level 1
Assets
Money market funds	0	0
Fair value, asset derivatives	0	0
Investment in Albertsons (Note 4)	80,956	72,391
Liabilities
Derivative financial instruments	0	0
Recurring | Level 2
Assets
Money market funds	0	0
Fair value, asset derivatives	1	1
Investment in Albertsons (Note 4)	0	0
Liabilities
Derivative financial instruments	60,979	90,139
Recurring | Level 3
Assets
Money market funds	0	0
Fair value, asset derivatives	0	0
Investment in Albertsons (Note 4)	0	0
Liabilities
Derivative financial instruments	$ 0	$ 0

XML

Financial Instruments and Fair Value Measurements - Schedule of Items Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Impairment charges	$ 0	$ 0		$ 0	$ 51,549
Fair Value, Measurements, Nonrecurring
Derivatives, Fair Value [Line Items]
Impairment charges						$ 85,598
Fair Value, Measurements, Nonrecurring | Acadia Realty Trust
Derivatives, Fair Value [Line Items]
Impairment charges						$ 20,594
Cortlandt Crossing, Mohegan Lake, NY | Fair Value, Measurements, Nonrecurring | Fund III | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event			Reduced holding period, reduced projected operating income
Impairment charges			$ 27,402
Cortlandt Crossing, Mohegan Lake, NY | Fair Value, Measurements, Nonrecurring | Fund III | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges			$ 6,726
654 Broadway, New York, NY | Fair Value, Measurements, Nonrecurring | Fund III | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event			Reduced holding period
Impairment charges			$ 6,398
654 Broadway, New York, NY | Fair Value, Measurements, Nonrecurring | Fund III | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges			$ 1,570
146 Geary Street, San Francisco, CA | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event			Reduced holding period, reduced projected operating income
Impairment charges			$ 6,718
146 Geary Street, San Francisco, CA | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges			$ 1,553
801 Madison Avenue, New York, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event			Reduced holding period, reduced projected operating income
Impairment charges			$ 11,031
801 Madison Avenue, New York, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges			$ 2,551
717 N. Michigan Avenue, Chicago, IL | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event						Reduced holding period, reduced projected operating income
Impairment charges						$ 17,392
717 N. Michigan Avenue, Chicago, IL | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges						$ 4,021
110 University, New York, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Triggering Event						Reduced holding period, reduced projected operating income
Impairment charges						$ 16,238
110 University, New York, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections
Derivatives, Fair Value [Line Items]
Impairment charges						$ 3,754
Fifth Wall Investment | Fair Value, Measurements, Nonrecurring | Core Portfolio | Level 3 Inputs Fair Value of Net Assets Projections
Derivatives, Fair Value [Line Items]
Triggering Event						Decline in fair value
Impairment charges						$ 419
Fifth Wall Investment | Fair Value, Measurements, Nonrecurring | Core Portfolio | Acadia Realty Trust | Level 3 Inputs Fair Value of Net Assets Projections
Derivatives, Fair Value [Line Items]
Impairment charges						$ 419

XML

Financial Instruments and Fair Value Measurements - Schedule of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020	Feb. 29, 2020
Derivatives, Fair Value [Line Items]
Fair value, liability derivatives	$ (60,979)	$ (90,139)
Derivative Assets	1	1
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount		30,400	$ 50,000
Core Portfolio
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	539,898
Fair value, derivatives, net	(51,255)	(74,990)
Core Portfolio | Interest Rate Swaps | Other Liabilities
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	539,898
Fair value, liability derivatives	$ 51,255	74,990
Core Portfolio | Interest Rate Swaps | Minimum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2012-12
Derivative Maturity Date	2022-03
Strike Rate	1.71%
Core Portfolio | Interest Rate Swaps | Maximum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2020-07
Derivative Maturity Date	2030-07
Strike Rate	3.77%
Fund Portfolio | Fund II
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 63,661
Fair value, derivatives, net	(89)	(219)
Fund Portfolio | Fund II | Interest Rate Swaps | Other Liabilities
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 18,661
Derivative Effective Date	2014-10
Derivative Maturity Date	2021-11
Fair value, liability derivatives	$ 89	219
Fund Portfolio | Fund II | Interest Rate Swaps | Minimum | Other Liabilities
Derivatives, Fair Value [Line Items]
Strike Rate	2.88%
Fund Portfolio | Fund II | Interest Rate Swaps | Maximum | Other Liabilities
Derivatives, Fair Value [Line Items]
Strike Rate	2.88%
Fund Portfolio | Fund II | Interest Rate Caps | Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 45,000
Derivative Effective Date	2019-03
Derivative Maturity Date	2022-03
Derivative Assets	$ 0	0
Fund Portfolio | Fund II | Interest Rate Caps | Minimum | Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.50%
Fund Portfolio | Fund II | Interest Rate Caps | Maximum | Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.50%
Fund Portfolio | Fund III | Interest Rate Caps | Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 35,970
Derivative Effective Date	2021-01
Derivative Maturity Date	2022-07
Derivative Assets	$ 0	0
Fund Portfolio | Fund III | Interest Rate Caps | Minimum | Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.00%
Fund Portfolio | Fund III | Interest Rate Caps | Maximum | Other Assets
Derivatives, Fair Value [Line Items]
Strike Rate	3.00%
Fund Portfolio | Fund IV
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 119,949
Fair value, derivatives, net	(720)	(1,712)
Fund Portfolio | Fund IV | Interest Rate Swaps | Other Liabilities
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	42,549
Fair value, liability derivatives	$ 721	1,713
Fund Portfolio | Fund IV | Interest Rate Swaps | Minimum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2017-03
Derivative Maturity Date	2022-04
Strike Rate	1.48%
Fund Portfolio | Fund IV | Interest Rate Swaps | Maximum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2019-12
Derivative Maturity Date	2022-12
Strike Rate	4.00%
Fund Portfolio | Fund IV | Interest Rate Caps | Other Assets
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 77,400
Derivative Assets	$ 1	1
Fund Portfolio | Fund IV | Interest Rate Caps | Minimum | Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2019-07
Derivative Maturity Date	2021-07
Strike Rate	3.00%
Fund Portfolio | Fund IV | Interest Rate Caps | Maximum | Other Assets
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2020-12
Derivative Maturity Date	2022-12
Strike Rate	3.50%
Fund Portfolio | Fund V
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	$ 304,843
Fair value, derivatives, net	(8,914)	(13,217)
Fund Portfolio | Fund V | Interest Rate Swaps | Other Liabilities
Derivatives, Fair Value [Line Items]
Aggregate Notional Amount	304,843
Fair value, liability derivatives	$ 8,914	$ 13,217
Fund Portfolio | Fund V | Interest Rate Swaps | Minimum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2018-06
Derivative Maturity Date	2022-02
Strike Rate	0.23%
Fund Portfolio | Fund V | Interest Rate Swaps | Maximum | Other Liabilities
Derivatives, Fair Value [Line Items]
Derivative Effective Date	2021-02
Derivative Maturity Date	2024-10
Strike Rate	2.88%

XML

Financial Instruments and Fair Value Measurements - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021 USD ($) SwapSwap	Dec. 31, 2020 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Reclassification adjustment related to derivatives from AOCI to interest expense	$ 19,200,000
Derivatives designated as fair value hedges	0	$ 0
Derivative designated to hedges of net investments in foreign operations	$ 0	$ 0
Number of forward swaps terminated | SwapSwap	2,000
Forward Swaps
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative, notional amount	$ 100,000,000.0
Cash proceeds from swaps	$ 3,400,000

XML

Financial Instruments and Fair Value Measurements - Schedule of Other Financial Instruments Carrying Values and Fair values (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Receivable	$ 117,280	$ 101,450
Mortgage and Other Notes Payable	1,664,110	1,763,839
Unsecured notes payable and Unsecured line of credit	440,088	420,858
Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Receivable	117,280	101,450
Mortgage and Other Notes Payable	1,166,948	1,210,540
Investment in non-traded equity securities	2,863	1,726
Level 3 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes Receivable	117,969	102,135
Mortgage and Other Notes Payable	1,145,654	1,190,214
Investment in non-traded equity securities	3,404	1,456
Level 2 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unsecured notes payable and Unsecured line of credit	506,009	559,514
Level 2 | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unsecured notes payable and Unsecured line of credit	$ 507,596	$ 544,532

XML

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]
Contractual obligation	$ 36.3	$ 32.7
Letters of credit, outstanding amount	$ 33.8	$ 35.6

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Common Shares and Units - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Restricted shares
Class of Stock [Line Items]
Restricted stock, shares canceled for tax withholding for share based compensation (in shares)	3,050		2,075
LTIP Units and Restricted Stock
Class of Stock [Line Items]
Unit based compensation expense	$ 4.7	$ 4.2	$ 8.4

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - ATM Program - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Class of Stock [Line Items]
Net proceeds from sale of common stock			$ 45,675	$ (22,386)
Purchase new program included an optional forward purchase component	$ 45,677		$ 45,677
ATM Program
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)			0		0
Net proceeds from sale of common stock			$ 45,700
Gross proceeds from issuance of common stock			46,300
Purchase new program included an optional forward purchase component		$ 250,000
Value of shares available for issuance	$ 123,900		$ 123,900
Share price (in dollars per share)	$ 22.37		$ 22.37		$ 22.09
Common Shares
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)	2,072		2,072
Purchase new program included an optional forward purchase component	$ 2		$ 2
Common Shares | ATM Program
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)			2,071,991

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Share Repurchases - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2018
Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract]
Authorized amount					$ 200,000,000.0
Number of shares repurchased during period (in shares)		1,219,065	0
Shares repurchased during period	$ 34,000	$ 22,400,000		$ 22,386,000
Stock repurchase fees		$ 100,000
Weighted Average Share Price		$ 18.29
Remaining authorized repurchase amount			$ 122,600,000

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Schedule of Distributions Declared and paid (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Class of Stock [Line Items]
Cash dividends declared per common share (in dollars per share)	$ 0.15	$ 0	$ 0.30	$ 0.29
Fourth Quarter Two Thousand Nineteen
Class of Stock [Line Items]
Cash dividends, declared date			Nov. 05, 2019
Cash dividends declared per common share (in dollars per share)			$ 0.29
Cash dividends, record date			Dec. 31, 2019
Cash dividends, paid date			Jan. 15, 2020
First Quarter Two Thousand Twenty
Class of Stock [Line Items]
Cash dividends, declared date			Feb. 26, 2020
Cash dividends declared per common share (in dollars per share)			$ 0.29
Cash dividends, record date			Mar. 31, 2020
Cash dividends, paid date			Apr. 15, 2020
First Quarter Two Thousand Twenty One
Class of Stock [Line Items]
Cash dividends, declared date			Mar. 15, 2021
Cash dividends declared per common share (in dollars per share)			$ 0.15
Cash dividends, record date			Mar. 31, 2021
Cash dividends, paid date			Apr. 15, 2021
Second Quarter Two Thousand Twenty One
Class of Stock [Line Items]
Cash dividends, declared date			May 05, 2021
Cash dividends declared per common share (in dollars per share)			$ 0.15
Cash dividends, record date			Jun. 30, 2021
Cash dividends, paid date			Jul. 15, 2021

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Dividends and Distributions - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020
Preferred Stock
Class of Stock [Line Items]
Distributions payable	$ 0.1	$ 0.1	$ 0.1

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Summary of Activity in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ 2,084,369	$ 2,011,560	$ 2,048,553	$ 2,186,965
Other comprehensive income (loss) before reclassifications - swap agreements	10,073	8,621	23,483	83,395
Reclassification of realized interest on swap agreements	5,324	3,115	10,641	4,092
Net current period other comprehensive income (loss)	(4,749)	(5,506)	34,124	(79,303)
Balance	2,116,350	2,093,331	2,116,350	2,093,331
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(41,962)	(85,715)	(74,891)	(31,175)
Balance	(47,909)	(90,209)	(47,909)	(90,209)
AOCI Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Net current period other comprehensive income (loss)	$ 1,198	$ 1,012	$ 7,142	$ 20,269

XML

Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Summary of Change in Noncontrolling Interest (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance				$ 607,239
Net income		$ 1,231	$ 64,906	3,091	$ 4,867
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		0	0	0	0
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements		(10,073)	(8,621)	23,483	(83,395)
Reclassification of realized interest on swap agreements		5,324	3,115	10,641	4,092
Noncontrolling interest contributions		5,868	21,041	17,109	28,309
Noncontrolling interest distributions		(4,355)	(1,418)	(11,031)	(4,536)
Employee Long-term Incentive Plan Unit Awards		2,624	2,317	7,135	6,136
Noncontrolling interest gain		(2,687)	45,496	(5,989)	(6,129)
Reallocation of noncontrolling interests		0	0	0	0
Ending Balance		617,659		617,659
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		617,522	577,096	607,239	644,657
Distributions declared per Common OP Unit		1,052	123	(2,100)	(1,972)
Net income		(2,687)	45,496	(5,989)	(6,129)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership		(115)	(4,072)	(409)	(6,544)
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements		(663)	(2,179)	3,380	(21,708)
Reclassification of realized interest on swap agreements		1,861	1,167	(3,762)	(1,439)
Noncontrolling interest contributions		5,868	21,041	17,109	28,309
Noncontrolling interest distributions		(4,355)	(1,418)	(11,031)	(4,536)
Employee Long-term Incentive Plan Unit Awards		2,399	2,142	6,448	5,790
Noncontrolling interest gain			(588)		(588)
Reallocation of noncontrolling interests	[1]	(1,119)	(1,999)	(750)	(2,144)
Ending Balance		617,659	637,739	617,659	637,739
Noncontrolling Interests | Cumulative Effect of Change in Accounting Principle
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ending Balance			(11)		(11)
Noncontrolling Interests | Noncontrolling Interests in Partially-Owned Affiliates
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	[2]	522,592	483,714	517,808	546,987
Distributions declared per Common OP Unit	[2]	0	0	0	0
Net income	[2]	(3,085)	44,237	(6,857)	(7,052)
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	[2]	0	0	0	0
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements	[2]	(257)	(1,869)	1,886	(18,257)
Reclassification of realized interest on swap agreements	[2]	1,808	1,125	(3,656)	(1,390)
Noncontrolling interest contributions	[2]	5,868	21,041	17,109	28,309
Noncontrolling interest distributions	[2]	(4,355)	(1,418)	(11,031)	(4,536)
Employee Long-term Incentive Plan Unit Awards	[2]	0	0	0	0
Noncontrolling interest gain	[2]		(588)		(588)
Reallocation of noncontrolling interests	[1],[2]	0	0	0	0
Ending Balance	[2]	522,571	547,418	522,571	547,418
Noncontrolling Interests | Noncontrolling Interests in Partially-Owned Affiliates | Cumulative Effect of Change in Accounting Principle
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ending Balance	[2]		(11)		(11)
Noncontrolling Interests | Operating Partnership, as General Partner or Managing Member
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	[3]	94,930	93,382	89,431	97,670
Distributions declared per Common OP Unit	[3]	1,052	123	(2,100)	(1,972)
Net income	[3]	398	1,259	868	923
Conversion of OP Units to Common Shares by limited partners of the Operating Partnership	[3]	(115)	(4,072)	(409)	(6,544)
Other comprehensive income (loss) - unrealized gain (loss) on valuation of swap agreements	[3]	(406)	(310)	1,494	(3,451)
Reclassification of realized interest on swap agreements	[3]	53	42	(106)	(49)
Noncontrolling interest contributions	[3]	0	0	0	0
Noncontrolling interest distributions	[3]	0	0	0	0
Employee Long-term Incentive Plan Unit Awards	[3]	2,399	2,142	6,448	5,790
Noncontrolling interest gain	[3]		0		0
Reallocation of noncontrolling interests	[1],[3]	(1,119)	(1,999)	(750)	(2,144)
Ending Balance	[3]	$ 95,088	90,321	$ 95,088	90,321
Noncontrolling Interests | Operating Partnership, as General Partner or Managing Member | Cumulative Effect of Change in Accounting Principle
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Ending Balance	[3]		$ 0		$ 0

[1] Adjustment reflects the difference between the fair value of the consideration received or paid and the book value of the Common Shares, Common OP Units, Preferred OP Units, and LTIP Units involving changes in ownership.

[2] Noncontrolling interests in partially-owned affiliates comprise third-party interests in Funds II, III, IV and V, and Mervyns II, and six other subsidiaries.

[3] Noncontrolling interests in the Operating Partnership are comprised of (i) the limited partners’ 3,101,958 Common OP Units at each of June 30, 2021 and 2020; (ii) 188 Series A Preferred OP Units at each of June 30, 2021 and 2020; (iii) 126,593 Series C Preferred OP Units at each of June 30, 2021 and 2020; and (iv) 3,434,894 and 2,886,207 LTIP units at June 30, 2021 and 2020, respectively, as discussed in Share Incentive Plan (Note 13). Distributions declared for Preferred OP Units are reflected in net income (loss) in the table above.

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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Summary of Change in Noncontrolling Interest (Parenthetical) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Minority Interest [Line Items]
Distributions declared (in dollars per share)	$ 0.15	$ 0	$ 0.30	$ 0.29
Conversion of Common OP Units to Common Shares by limited partners of the Operating Partnership (in shares)	7,173	259,712	25,973	407,594
Series A Preferred OP Units (in shares)	3,101,958		3,101,958
Series A Preferred Stock
Minority Interest [Line Items]
Series A Preferred OP Units (in shares)	188	188	188	188
Operating Partnership, as General Partner or Managing Member
Minority Interest [Line Items]
Series A Preferred OP Units (in shares)		3,101,958		3,101,958
Operating Partnership, as General Partner or Managing Member | Series A Preferred Stock
Minority Interest [Line Items]
Series A Preferred OP Units (in shares)	188		188
Operating Partnership, as General Partner or Managing Member | Series C Preferred Stock
Minority Interest [Line Items]
Series A Preferred OP Units (in shares)	126,593	126,593	126,593	126,593
LTIP Units
Minority Interest [Line Items]
LTIP units outstanding (in shares)	3,434,894	2,886,207	3,434,894	2,886,207

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Shareholders' Equity, Noncontrolling Interests and Other Comprehensive Loss - Preferred OP Units - Additional Information (Details) - $ / shares	3 Months Ended	6 Months Ended	12 Months Ended		66 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2016	Jun. 30, 2021	Jun. 30, 2020
Class of Stock [Line Items]
Series A Preferred OP Units (in shares)	3,101,958	3,101,958			3,101,958
Denominator for Series A Preferred OP Unit conversion	$ 7.50	$ 7.50			$ 7.50
Common Shares
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)	2,072	2,072
Gotham Plaza | Common Shares
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)				442,478
Preferred quarterly distribution per share price				$ 0.9375
Number of convertible units if share price below $28.80 (in shares)				3.4722
Number of convertible units if share price above $35.20 (in shares)				2.8409
Operating Partnership, as General Partner or Managing Member
Class of Stock [Line Items]
Series A Preferred OP Units (in shares)						3,101,958
Preferred OP Units
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)		0	0
Preferred OP Units | Gotham Plaza
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)				141,593
Share price (in dollars per share)				$ 100.00
Preferred OP Units | Gotham Plaza | Minimum
Class of Stock [Line Items]
Share price at conversion date				28.80
Preferred OP Units | Gotham Plaza | Maximum
Class of Stock [Line Items]
Share price at conversion date				$ 35.20
Series A Preferred Stock
Class of Stock [Line Items]
Issuance of common shares, net of issuance costs (in Shares)		1,580
Preferred stock, stated value per unit	$ 1,000	$ 1,000			1,000
Per unit conversion amount, Series A Preferred OP Units (in dollars per unit)	$ 22.50	$ 22.50			$ 22.50
Per unit conversion annual rate, Preferred OP Units	9.00%	9.00%			9.00%
Number of preferred OP Units converted (in shares)		1,392
Units converted from Preferred OP Units (in shares)		185,600
Series A Preferred OP Units (in shares)	188	188			188	188
Series A Preferred Stock | Operating Partnership, as General Partner or Managing Member
Class of Stock [Line Items]
Series A Preferred OP Units (in shares)	188	188			188
Series C Preferred Stock | Gotham Plaza
Class of Stock [Line Items]
Number of preferred OP Units converted (in shares)					15,000
Units converted from Preferred OP Units (in shares)					51,887
Series C Preferred Stock | Operating Partnership, as General Partner or Managing Member
Class of Stock [Line Items]
Series A Preferred OP Units (in shares)	126,593	126,593			126,593	126,593

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Leases - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Agreement	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Item
Operating Leased Assets [Line Items]
Variable lease revenues			$ 29,300	$ 27,300
Operating lease right-of-use asset	$ 42,398		42,398		$ 76,268
Lease liability - operating lease	40,861		40,861		88,816
Gain (loss) on termination of lease			3,615	0
Gain on disposition of properties	5,909	$ 485	10,521	485
Impairment charges	0	$ 0	0	$ 51,549
Lease agreement purchase price					$ 14,500
Minimum
Operating Leased Assets [Line Items]
Operating lease term		1 month		1 month
Maximum
Operating Leased Assets [Line Items]
Operating lease term		60 years		60 years
991 Madison Avenue Manhattan, NY | Accounting Standards Update 2016-02
Operating Leased Assets [Line Items]
Capital lease term					49 years
Operating Lease term					15 years
1238 Wisconsin
Operating Leased Assets [Line Items]
Operating lease right-of-use asset					$ 1,900
Operating lease liability					1,900
Lease agreement purchase price					11,500
COVID-19
Operating Leased Assets [Line Items]
Impairment charges			$ 12,400
Number of rent concession agreements | Agreement			74
Number of rent concession agreements for rent deferral | Agreement			17
Number of rent concession agreements for rent abatements | Agreement			57
Number of rent concession agreements accounted as no change in contract | Agreement			15
Deferred receivables	7,700		$ 7,700
Rent abatements			2,400
Aggregate credit losses and rent abatements	0	$ 9,400	$ 3,700	$ 13,700
Pro rata core leased occupancy rate percentage			92.40%	93.30%
Pro rata fund leased occupancy rate percentage			89.00%	91.10%
Fund IV Property
Operating Leased Assets [Line Items]
Operating lease right-of-use asset	31,400		$ 31,400
Termination cost	3,600
Lease liability - operating lease	46,000		46,000
Building improvements and other assets	10,300		10,300
Gain (loss) on termination of lease	700
Gain on disposition of properties	200
Impairment charge of right-of-use asset					12,300
Rye Corporate Office Lease
Operating Leased Assets [Line Items]
Operating lease right-of-use asset	400		400
Operating lease liability	$ 400		$ 400
Office Lease
Operating Leased Assets [Line Items]
Operating lease right-of-use asset					1,700
Lease liability - operating lease					$ 1,700
Number of operating lease | Item					1
BSP II
Operating Leased Assets [Line Items]
Number of operating lease | Item					1
Branch Plaza
Operating Leased Assets [Line Items]
Number of operating lease | Item					1
Operating Lease term					22 years

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Leases - Activity for Reserves Related to Billed Rents and Straight-line Rents (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Operating Leased Assets [Line Items]
Balance at Beginning of Period	$ 45,408
Provision (Recovery)	1,824
Adjustments to Valuation Accounts	0
Deductions	(4,968)
Balance at End of Period	42,264
Allowance for Credit Loss - Billed Rents
Operating Leased Assets [Line Items]
Balance at Beginning of Period	30,366
Provision (Recovery)	1,238
Adjustments to Valuation Accounts	0
Deductions	(2,639)
Balance at End of Period	28,965
Straight-line Rent Reserves
Operating Leased Assets [Line Items]
Balance at Beginning of Period	15,042
Provision (Recovery)	586
Adjustments to Valuation Accounts	0
Deductions	(2,329)
Balance at End of Period	$ 13,299

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Leases - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Finance lease cost:
Amortization of right-of-use assets	$ 225	$ 487	$ 451	$ 1,144
Interest on lease liabilities	97	599	192	1,449
Subtotal	322	1,086	643	2,593
Operating lease cost	2,230	1,725	4,516	3,119
Variable lease cost	19	6	34	22
Total lease cost	$ 2,571	$ 2,817	$ 5,193	$ 5,734
Weighted-average remaining lease term - finance leases (years)	33 years	33 years 8 months 12 days	33 years	33 years 8 months 12 days
Weighted-average remaining lease term - operating leases (years)	14 years 4 months 24 days	26 years 10 months 24 days	14 years 4 months 24 days	26 years 10 months 24 days
Weighted-average discount rate - finance leases	6.30%	6.20%	6.30%	6.20%
Weighted-average discount rate - operating leases	5.10%	5.40%	5.10%	5.40%

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Leases - Schedule of Future Minimum Rental Revenues and Payments for Operating and Capital Leases (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Minimum Rental Revenues
2021 (Remainder)	$ 100,375
2022	205,934
2023	190,196
2024	163,851
2025	133,093
Thereafter	528,888
Total	1,322,337
Minimum Rental Payments, Operating Leases
2021 (Remainder)	3,010
2022	5,368
2023	5,389
2024	5,414
2025	5,329
Thereafter	29,711
Total before interest	54,221
Interest	(13,360)
Total	40,861
Minimum Rental Payments, Finance Leases
2021 (Remainder)	69
2022	28
2023	0
2024	0
2025	0
Thereafter	12,515
Total before interest	12,612
Interest	(6,133)
Total	$ 6,479

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Segment Reporting - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021 Segment
Segment Reporting [Abstract]
Number of reportable segments	3

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Segment Reporting - Summary of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total Revenues	$ 74,660	$ 63,773	$ 144,054	$ 135,193
Depreciation and amortization	(31,345)	(33,793)	(62,735)	(67,170)
Property operating expenses, other operating and real estate taxes	(25,394)	(27,503)	(50,333)	(51,270)
General and administrative expenses	(10,671)	(8,720)	(19,667)	(17,790)
Impairment charges	0	0	0	(51,549)
Gain on disposition of properties	5,909	485	10,521	485
Operating income (loss)	13,159	(5,758)	21,840	(52,101)
Interest income	2,054	2,095	3,754	5,024
Realized and unrealized holding gains on investments and other	2,711	87,811	9,218	87,281
Equity in earnings (losses) of unconsolidated affiliates	1,106	(786)	3,369	469
Interest expense	(17,605)	(18,319)	(34,746)	(36,621)
Income tax (provision) benefit	(194)	(137)	(344)	815
Net (loss) income	1,231	64,906	3,091	4,867
Net loss (income) attributable to noncontrolling interests	2,687	(45,496)	5,989	6,129
Net (loss) income attributable to Acadia	3,918	19,410	9,080	10,996
Real estate at cost	4,043,253	4,162,224	4,043,253	4,162,224
Total assets	4,089,612	4,328,748	4,089,612	4,328,748	$ 4,186,882
Cash paid for acquisition of real estate			0	21,208
Cash paid for development and property improvement costs			16,620	20,533
Operating Segments | Core Portfolio
Segment Reporting Information [Line Items]
Total Revenues	46,000	38,602	88,350	78,535
Depreciation and amortization	(17,333)	(18,150)	(34,220)	(35,207)
Property operating expenses, other operating and real estate taxes	(14,205)	(17,961)	(27,862)	(29,775)
General and administrative expenses	0	0	0	0
Impairment charges				0
Gain on disposition of properties	0	0	4,612	0
Operating income (loss)	14,462	2,491	30,880	13,553
Interest income	0	0	0	0
Realized and unrealized holding gains on investments and other	0	0	0	0
Equity in earnings (losses) of unconsolidated affiliates	669	(1,070)	(459)	572
Interest expense	(7,350)	(8,602)	(14,564)	(16,852)
Income tax (provision) benefit	0	0	0	0
Net (loss) income	7,781	(7,181)	15,857	(2,727)
Net loss (income) attributable to noncontrolling interests	(406)	5,068	(1,013)	6,284
Net (loss) income attributable to Acadia	7,375	(2,113)	14,844	3,557
Real estate at cost	2,323,767	2,362,334	2,323,767	2,362,334
Total assets	2,209,033	2,323,986	2,209,033	2,323,986
Cash paid for acquisition of real estate			0	19,963
Cash paid for development and property improvement costs			5,465	6,443
Operating Segments | Opportunity Funds
Segment Reporting Information [Line Items]
Total Revenues	28,660	25,171	55,704	56,658
Depreciation and amortization	(14,012)	(15,643)	(28,515)	(31,963)
Property operating expenses, other operating and real estate taxes	(11,189)	(9,542)	(22,471)	(21,495)
General and administrative expenses	0	0	0	0
Impairment charges				(51,549)
Gain on disposition of properties	5,909	485	5,909	485
Operating income (loss)	9,368	471	10,627	(47,864)
Interest income	0	0	0	0
Realized and unrealized holding gains on investments and other	2,841	87,751	9,388	87,751
Equity in earnings (losses) of unconsolidated affiliates	437	284	3,828	(103)
Interest expense	(10,255)	(9,717)	(20,182)	(19,769)
Income tax (provision) benefit	0	0	0	0
Net (loss) income	2,391	78,789	3,661	20,015
Net loss (income) attributable to noncontrolling interests	3,093	(50,564)	7,002	(155)
Net (loss) income attributable to Acadia	5,484	28,225	10,663	19,860
Real estate at cost	1,719,486	1,799,890	1,719,486	1,799,890
Total assets	1,763,299	1,870,070	1,763,299	1,870,070
Cash paid for acquisition of real estate			0	1,245
Cash paid for development and property improvement costs			11,155	14,090
Operating Segments | Structured Financing
Segment Reporting Information [Line Items]
Total Revenues	0	0	0	0
Depreciation and amortization	0	0	0	0
Property operating expenses, other operating and real estate taxes	0	0	0	0
General and administrative expenses	0	0	0	0
Impairment charges				0
Gain on disposition of properties	0	0	0	0
Operating income (loss)	0	0	0	0
Interest income	2,054	2,095	3,754	5,024
Realized and unrealized holding gains on investments and other	(130)	60	(170)	(470)
Equity in earnings (losses) of unconsolidated affiliates	0	0	0	0
Interest expense	0	0	0	0
Income tax (provision) benefit	0	0	0	0
Net (loss) income	1,924	2,155	3,584	4,554
Net loss (income) attributable to noncontrolling interests	0	0	0	0
Net (loss) income attributable to Acadia	1,924	2,155	3,584	4,554
Real estate at cost	0	0	0	0
Total assets	117,280	134,692	117,280	134,692
Cash paid for acquisition of real estate			0	0
Cash paid for development and property improvement costs			0	0
Unallocated
Segment Reporting Information [Line Items]
Total Revenues	0	0	0	0
Depreciation and amortization	0	0	0	0
Property operating expenses, other operating and real estate taxes	0	0	0	0
General and administrative expenses	(10,671)	(8,720)	(19,667)	(17,790)
Impairment charges				0
Gain on disposition of properties	0	0	0	0
Operating income (loss)	(10,671)	(8,720)	(19,667)	(17,790)
Interest income	0	0	0	0
Realized and unrealized holding gains on investments and other	0	0	0	0
Equity in earnings (losses) of unconsolidated affiliates	0	0	0	0
Interest expense	0	0	0	0
Income tax (provision) benefit	(194)	(137)	(344)	815
Net (loss) income	(10,865)	(8,857)	(20,011)	(16,975)
Net loss (income) attributable to noncontrolling interests	0	0	0	0
Net (loss) income attributable to Acadia	(10,865)	(8,857)	(20,011)	(16,975)
Real estate at cost	0	0	0	0
Total assets	$ 0	$ 0	0	0
Cash paid for acquisition of real estate			0	0
Cash paid for development and property improvement costs			$ 0	$ 0

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Segment Reporting - Summary of Segment Information (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Real estate at cost	$ 4,043,253	$ 4,162,224	$ 4,043,253	$ 4,162,224
Total assets	4,089,612	4,328,748	4,089,612	4,328,748	$ 4,186,882
Net loss (income) attributable to noncontrolling interests	2,687	$ (45,496)	5,989	6,129
Opportunity Funds | Fund II's City Point Property
Segment Reporting Information [Line Items]
Real estate at cost	650,600		650,600
Total assets	$ 604,800		604,800
Net loss (income) attributable to noncontrolling interests			$ 189,000	$ 176,000

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Share Incentive and Other Compensation - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unit based compensation			$ 7,135,000	$ 6,136,000
Trustee fees			$ 800,000	700,000
Weighted average grant date fair value, grants (in dollars per share)			$ 19.50		$ 18.86
Total unrecognized compensation cost related to nonvested awards	$ 22,000,000.0		$ 22,000,000.0
Weighted-average period over which cost is expected to be recognized			1 year 7 months 6 days
Performance Period Ending December 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of shares that vested			$ 7,500,000		$ 7,600,000
LTIP Units | Trustee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period, share-based compensation, net of forfeitures			30,321
LTIP Units | Performance Period Ending December 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of shares that vested			$ 700,000		500,000
Restricted shares | Trustee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period, share-based compensation, net of forfeitures			30,592
LTIP Units and Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total value of restricted shares and LTIP units as of the grant date			$ 12,600,000		$ 10,400,000
LTIP Units and Restricted Stock | Trustee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Vesting rate of shares granted to trustees			33.00%
LTIP Units and Restricted Stock | General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unit based compensation	$ 2,300,000	$ 2,100,000	$ 4,700,000	4,200,000
LTIP Units and Restricted Stock | Performance Period Ending December 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
LTIP Units and Restricted Stock | Performance Fails To Achieve, Earned Performance-Based Shares Vest At End Of Performance Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			60.00%
LTIP Units and Restricted Stock | Performance Fails To Achieve
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			40.00%
Award vesting period			2 years
LTIP Units and Restricted Stock | Minimum | TSR percentile falls between the 25th percentile and the 50th percentile
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			50.00%
LTIP Units and Restricted Stock | Minimum | TSR percentile falls between the 50th percentile and 75th percentile
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			100.00%
LTIP Units and Restricted Stock | Maximum | TSR percentile falls between the 25th percentile and the 50th percentile
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			100.00%
LTIP Units and Restricted Stock | Maximum | TSR percentile falls between the 50th percentile and 75th percentile
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			200.00%
Employee Benefit Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			$ 300,000	$ 200,000
Share Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	1,917,304		1,917,304
Share Incentive Plan | LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period, share-based compensation, net of forfeitures			635,976		396,149
Share Incentive Plan | Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period, share-based compensation, net of forfeitures			11,244		13,766
Performance Shares 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period			3 years		3 years
Performance Shares 2019 | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate			21.00%
Risk-free interest rates			1.40%
Performance Shares 2019 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility rate			48.00%
Risk-free interest rates			0.20%
Long Term Investment Alignment Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Max percentage of future fund III promote that may be awarded to senior executives			25.00%
Long Term Investment Alignment Program | Fund III
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of promote awarded as share based compensation award			25.00%
Compensation expense			$ 0		$ 0
Long Term Investment Alignment Program | Fund IV
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of promote awarded as share based compensation award			23.10%
Awards in connection with fund to have intrinsic value	$ 0		$ 0		0
Compensation expense			$ 0		0
Long Term Investment Alignment Program | Fund V
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of promote awarded as share based compensation award			8.40%
Awards in connection with fund to have intrinsic value	$ 0		$ 0		0
Compensation expense			$ 0		$ 0

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Share Incentive and Other Compensation - Schedule of Unvested Shares and LTIP Units (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares unvested, Beginning of period (in shares)	89,911	42,390
Shares granted (in shares)	43,078	66,824
Shares vested (in shares)	(43,084)	(19,264)
Shares forfeited (in shares)	(159)	(39)
Shares unvested, End of period (in shares)	89,746	89,911
Weighted Grant-Date Fair Value
Shares unvested, Weighted average grant date fair value, Beginning of period (in dollars per share)	$ 15.42	$ 23.73
Shares granted, Weighted average grant date fair value (in dollars per share)	19.94	13.70
Shares vested, Weighted average grant date fair value (in dollars per share)	16.85	27.72
Shares forfeited, Weighted average grant date fair value (in dollars per share)	36.22	24.77
Shares unvested, Weighted average grant date fair value, End of period (in dollars per share)	$ 16.87	$ 15.42
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares unvested, Beginning of period (in shares)	1,122,889	936,180
Shares granted (in shares)	666,297	440,829
Shares vested (in shares)	(283,024)	(250,241)
Shares forfeited (in shares)	(91,637)	(3,879)
Shares unvested, End of period (in shares)	1,414,525	1,122,889
Weighted Grant-Date Fair Value
Shares unvested, Weighted average grant date fair value, Beginning of period (in dollars per share)	$ 24.38	$ 28.24
Shares granted, Weighted average grant date fair value (in dollars per share)	19.48	19.64
Shares vested, Weighted average grant date fair value (in dollars per share)	26.66	30.44
Shares forfeited, Weighted average grant date fair value (in dollars per share)	36.22	24.67
Shares unvested, Weighted average grant date fair value, End of period (in dollars per share)	$ 20.85	$ 24.38

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Share Incentive and Other Compensation - Employee Share Purchase Plan and Deferred Share Plan - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee share purchase discount rate	15.00%
Employee share purchase maximum purchase amount	$ 25,000,000
Employee Share Purchase Plan 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of common shares allow for issuance	200,000
Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee share purchase (in shares)	4,651	1,604

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Share Incentive and Other Compensation - Employee 401 (k) Plan - Additional Information (Details) - Forecast $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution	50.00%
Maximum annual contribution per employee	6.00%
Maximum employee annual salary contribution	15.00%
Maximum employee annual salary contribution amount	$ 19,500

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Earnings Per Common Share - Additional Information (Details)	6 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Description of conversion of common OP units to common shares	The effect of the conversion of Common OP Units is not reflected in the computation of basic and diluted earnings per share, as they are exchangeable for Common Shares on a one-for-one basis
Conversion of common OP units to common shares	100.00%

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Earnings Per Common Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income (loss) attributable to Acadia	$ 3,918	$ 19,410	$ 9,080	$ 10,996
Less: net income attributable to participating securities	(156)	(244)	(312)	(233)
Income (loss) from continuing operations net of income attributable to participating securities	$ 3,762	$ 19,166	$ 8,768	$ 10,763
Denominator:
Weighted average shares for basic earnings per share (in shares)	86,824,445	86,179,950	86,575,240	86,575,751
Effect of dilutive securities:
Employee unvested restricted shares (in shares)	0	0	0	0
Denominator for diluted earnings per share (in shares)	86,824,445	86,179,950	86,575,240	86,575,751
Basic and diluted earnings and basic loss per Common Share from continuing operations attributable to Acadia	$ 0.04	$ 0.22	$ 0.10	$ 0.12
Series A Preferred OP Units
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	188	188	188	188
Series A Preferred OP Units - Common Share Equivalent
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	25,067	25,067	25,067	25,067
Series C Preferred OP Units
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	126,593	126,593	126,593	126,593
Series C Preferred OP Units - Common Share Equivalent
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	439,556	439,556	439,556	439,556
Restricted shares
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	70,827	76,433	70,827	76,433

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Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands	Jul. 21, 2021	Jul. 07, 2021	Jun. 30, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Mortgage Loans On Real Estate			$ 117,280	$ 101,450
Subsequent Event | Fairlane Green Property | Fund V | Mortgages
Subsequent Event [Line Items]
Mortgage Loans On Real Estate		$ 40,300
Debt instrument, maturity date		Jun. 05, 2022
Scheduled principal payment		$ 6,600
Subsequent Event | 146 Geary Street Property | Fund IV | Mortgages
Subsequent Event [Line Items]
Mortgage Loans On Real Estate	$ 22,900
Debt instrument, maturity date	Jul. 15, 2023
Scheduled principal payment	$ 3,600