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.

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 are included in Cash and cash equivalents in the consolidated financial statements, 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 in the consolidated financial statements, 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 in the consolidated financial statements, 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 nine months ended September 30, 2020 or 2019.

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):

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 March of 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. There were no impairment charges recorded subsequent to March 31, 2020. As a result, several impairments were recorded at Fund assets. 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

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

3/31/2020

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

3/31/2020

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

3/31/2020

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

3/31/2020

11,031

2,551

Total 2020 Impairment Charges

51,549

12,400

2019 Impairment Charges

210 Bowery residential units

Fund IV

Reduced selling price

Contract sales price

9/30/2019

321

210 Bowery residential units

Fund IV

Reduced selling price

Offering price

6/30/2019

1,400

321

Total 2019 Impairment Charges

1,721

395

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	September 30, 2020			December 31, 2019
Core
Interest Rate Swaps	$	572,476	Dec 2012-Apr 2023		Jan 2021-Apr 2033			1.24	%	—		3.77	%	Other Liabilities ^(a)	$	(85,942	)	$	(33,750	)
Interest Rate Swaps		—		—		—		—		—		—		Other Assets		—			456
	$	572,476													$	(85,942	)	$	(33,294	)

Fund II
Interest Rate Swap	$	18,872	Oct 2014		Nov 2021			2.88	%	—		2.88	%	Other Liabilities	$	(282	)	$	(139	)
Interest Rate Cap		45,000	Mar 2019		Mar 2022			3.50	%	—		3.50	%	Other Assets		—			1
	$	63,872													$	(282	)	$	(138	)

Fund III
Interest Rate Cap	$	39,470	Jan 2020		Jan 2021			3.00	%	—		3.00	%	Other Assets	$	—		$	—

Fund IV
Interest Rate Swaps	$	—		—		—		—		—		—		Other Assets	$	—		$	22
Interest Rate Swaps		66,921	Mar 2017 - Dec 2019		Apr 2022 - Dec 2022			1.48	%	—		4.00	%	Other Liabilities		(2,019	)		(812	)
Interest Rate Caps		90,600	July 2019 - Dec 2019		Dec 2020 - July 2021			3.00	%	—		3.50	%	Other Assets		—			—
	$	157,521													$	(2,019	)	$	(790	)

Fund V
Interest Rate Swaps	$	—		—		—		—		—		—		Other Assets	$	—		$	2,104
Interest Rate Swaps		334,416	Jan 2018-Nov 2019		Feb 2021-Oct 2024			1.25	%	—		2.88	%	Other Liabilities		(14,961	)		(4,360	)
	$	334,416													$	(14,961	)	$	(2,256	)

Total asset derivatives															$	—		$	2,583
Total liability derivatives															$	(103,204	)	$	(39,061	)

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 $20.2 million included in Accumulated other comprehensive loss related to derivatives will be reclassified to interest expense within the next twelve months. As of September 30, 2020 and December 31, 2019, 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.

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.

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.

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):

The Company’s cash and cash equivalents, restricted cash, accounts 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 September 30, 2020.