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Fair Value Measurements
6 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
ASC 820 defines fair value and establishes a framework for measuring fair value. The objective of fair value is to determine the price that would be received upon the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (the exit price). ASC 820 establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three levels: Level 1 – quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities; Level 2 – observable prices that are based on inputs not quoted in active markets, but corroborated by market data; and Level 3 – unobservable inputs that are used when little or no market data is available. The fair value hierarchy gives the highest priority to Level 1 inputs and the lowest priority to Level 3 inputs. In determining fair value, we utilize valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible, as well as consider counterparty credit risk in our assessment of fair value. Considerable judgment is necessary to interpret Level 2 and 3 inputs in determining the fair value of our financial and non-financial assets and liabilities. Accordingly, our fair value estimates, which are made at the end of each reporting period, may be different than the amounts that may ultimately be realized upon sale or disposition of these assets.
Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis
Financial assets and liabilities that are measured at fair value on our consolidated balance sheets consist of (i) real estate fund investments, (ii) the assets in our deferred compensation plan (for which there is a corresponding liability on our consolidated balance sheets), (iii) loans receivable (for which we have elected the fair value option under ASC Subtopic 825-10, Financial Instruments ("ASC 825-10")), (iv) interest rate swaps and (v) mandatorily redeemable instruments (Series G-1 through G-4 convertible preferred units and Series D-13 cumulative redeemable preferred units). The tables on the following page aggregate the fair values of these financial assets and liabilities by their levels in the fair value hierarchy.
14.    Fair Value Measurements - continued
Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis - continued
(Amounts in thousands)As of June 30, 2021
TotalLevel 1Level 2Level 3
Real estate fund investments$3,739 $— $— $3,739 
Deferred compensation plan assets ($4,968 included in restricted cash and $102,270 in other assets)
107,238 62,383 — 44,855 
Loans receivable ($44,716 included in investments in partially owned entities and $4,060 in other assets)
48,776 — — 48,776 
Interest rate swaps and caps (included in other assets)4,994 — 4,994 — 
Total assets$164,747 $62,383 $4,994 $97,370 
Mandatorily redeemable instruments (included in other liabilities)$50,267 $50,267 $— $— 
Interest rate swaps (included in other liabilities)50,818 — 50,818 — 
Total liabilities$101,085 $50,267 $50,818 $— 
(Amounts in thousands)As of December 31, 2020
TotalLevel 1Level 2Level 3
Real estate fund investments$3,739 $— $— $3,739 
Deferred compensation plan assets ($10,813 included in restricted cash and $94,751 in other assets)
105,564 65,636 — 39,928 
Loans receivable ($43,008 included in investments in partially owned entities and $4,735 in other assets)
47,743 — — 47,743 
Interest rate swaps and caps (included in other assets)17 — 17 — 
Total assets$157,063 $65,636 $17 $91,410 
Mandatorily redeemable instruments (included in other liabilities)
$50,002 $50,002 $— $— 
Interest rate swaps (included in other liabilities)66,033 — 66,033 — 
Total liabilities$116,035 $50,002 $66,033 $— 
Real Estate Fund Investments
As of June 30, 2021, we had four real estate fund investments with an aggregate fair value of $3,739,000, $339,812,000 below cost. These investments are classified as Level 3.
Significant unobservable quantitative inputs used in determining the fair value of each investment include capitalization rates and discount rates. These rates are based on the location, type and nature of each property, current and anticipated market conditions, industry publications and from the experience of our Acquisitions and Capital Markets departments. Significant unobservable quantitative inputs in the table below were utilized in determining the fair value of these real estate fund investments.
RangeWeighted Average
(based on fair value of assets)
Unobservable Quantitative InputJune 30, 2021December 31, 2020June 30, 2021December 31, 2020
Discount rates
7.2% to 15.0%
7.6% to 15.0%
11.8%12.7%
Terminal capitalization rates
5.3% to 10.6%
5.5% to 10.3%
7.8%7.9%
The inputs above are subject to change based on changes in economic and market conditions and/or changes in use or timing of exit. Changes in discount rates and terminal capitalization rates result in increases or decreases in the fair values of these investments. The discount rates encompass, among other things, uncertainties in the valuation models with respect to terminal capitalization rates and the amount and timing of cash flows. Therefore, a change in the fair value of these investments resulting from a change in the terminal capitalization rate may be partially offset by a change in the discount rate. It is not possible for us to predict the effect of future economic or market conditions on our estimated fair values. 
14.    Fair Value Measurements - continued
Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis - continued
Real Estate Fund Investments - continued
The table below summarizes the changes in the fair value of real estate fund investments that are classified as Level 3.
(Amounts in thousands)For the Three Months Ended June 30,For the Six Months Ended June 30,
2021202020212020
Beginning balance$3,739 $45,129 $3,739 $222,649 
Purchases/additional fundings295 — 789 6,000 
Net unrealized loss on held investments(295)(27,676)(789)(211,196)
Ending balance$3,739 $17,453 $3,739 $17,453 
Deferred Compensation Plan Assets
Deferred compensation plan assets that are classified as Level 3 consist of investments in limited partnerships and investment funds, which are managed by third parties. We receive quarterly financial reports from a third-party administrator, which are compiled from the quarterly reports provided to them from each limited partnership and investment fund. The quarterly reports provide net asset values on a fair value basis which are audited by independent public accounting firms on an annual basis. The period of time over which these underlying assets are expected to be liquidated is unknown. The third party administrator does not adjust these values in determining our share of the net assets and we do not adjust these values when reported in our consolidated financial statements.
The table below summarizes the changes in the fair value of deferred compensation plan assets that are classified as Level 3.
(Amounts in thousands)For the Three Months Ended June 30,For the Six Months Ended June 30,
2021202020212020
Beginning balance$41,639 $30,568 $39,928 $32,435 
Purchases2,564 5,656 3,013 6,949 
Sales(544)(357)(689)(2,832)
Realized and unrealized gains (losses)969 38 2,262 (1,191)
Other, net227 267 341 811 
Ending balance$44,855 $36,172 $44,855 $36,172 
Loans Receivable
Loans receivable consist of loan investments in real estate related assets for which we have elected the fair value option under ASC 825-10. These investments are classified as Level 3.
Significant unobservable quantitative inputs used in determining the fair value of each investment include capitalization rates and discount rates. These rates are based on the location, type and nature of each property, current and anticipated market conditions, industry publications and from the experience of our Acquisitions and Capital Markets departments. Significant unobservable quantitative inputs in the table below were utilized in determining the fair value of these loans receivable.
RangeWeighted Average
(based on fair value of investments)
Unobservable Quantitative InputJune 30, 2021December 31, 2020June 30, 2021December 31, 2020
Discount rates6.5%6.5%6.5%6.5%
Terminal capitalization rates5.0%5.0%5.0%5.0%
The table below summarizes the changes in fair value of loans receivable that are classified as Level 3.
(Amounts in thousands)For the Three Months Ended June 30,For the Six Months Ended June 30,
2021202020212020
Beginning balance$48,209 $51,990 $47,743 $59,251 
Credit losses— (6,108)— (13,369)
Interest accrual867 793 1,708 793 
Paydowns(300)— (675)— 
Ending balance$48,776 $46,675 $48,776 $46,675 
14.    Fair Value Measurements - continued
Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis - continued
Derivatives and Hedging
We utilize various financial instruments to mitigate the impact of interest rate fluctuations on our cash flows and earnings, including hedging strategies, depending on our analysis of the interest rate environment and the costs and risks of such strategies. We recognize the fair values of all derivatives in "other assets" or "other liabilities" on our consolidated balance sheets. Derivatives that are not hedges are adjusted to fair value through earnings. If a derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative will either be offset against the change in fair value of the hedge asset, liability, or firm commitment through earnings, or recognized in other comprehensive income until the hedged item is recognized in earnings. Reported net income and equity may increase or decrease prospectively, depending on future levels of interest rates and other variables affecting the fair values of derivative instruments and hedged items, but will have no effect on cash flows.
The following tables summarize our consolidated derivative instruments, all of which hedge variable rate debt, as of June 30, 2021 and December 31, 2020.
(Amounts in thousands)As of June 30, 2021
Variable Rate
Hedged Item Fair ValueNotional AmountSpread over LIBORInterest RateSwapped RateExpiration Date
Included in other assets:
555 California Street mortgage loan interest rate swap(1)
$3,041 $840,000 
(2)
L+193
2.01%2.26%5/24
PENN 11 mortgage loan interest rate swap(3)
1,858 500,000 
L+275
2.83%3.03%3/24
Various interest rate caps95 175,000 
$4,994 $1,515,000 
Included in other liabilities:
Unsecured term loan interest rate swap$44,732 $750,000 
(4)
L+100
1.10%3.87%10/23
33-00 Northern Boulevard mortgage loan interest rate swap6,086 100,000 
L+180
1.89%4.14%1/25
$50,818 $850,000 
____________________
(1)Entered into on May 15, 2021.
(2)Represents our 70.0% share of the $1.2 billion mortgage loan.
(3)Entered into on March 7, 2021.
(4)Remaining $50,000 balance of our unsecured term loan bears interest at a floating rate of LIBOR plus 1.00%.

(Amounts in thousands)As of December 31, 2020
Variable Rate
Hedged ItemFair ValueNotional AmountSpread over LIBORInterest RateSwapped RateExpiration Date
Included in other assets:
Various interest rate caps$17 $175,000 
Included in other liabilities:
Unsecured term loan interest rate swap$57,723 $750,000 
(1)
L+100
1.15%3.87%10/23
33-00 Northern Boulevard mortgage loan interest rate swap8,310 100,000 
L+180
1.95%4.14%1/25
$66,033 $850,000 
____________________
(1)Remaining $50,000 balance of our unsecured term loan bears interest at a floating rate of LIBOR plus 1.00%.
14.    Fair Value Measurements - continued
Fair Value Measurements on a Nonrecurring Basis
There were no assets measured at fair value on a nonrecurring basis on our consolidated balance sheet as of June 30, 2021. As of December 31, 2020, assets measured at fair value on a nonrecurring basis on our consolidated balance sheet consisted of real estate assets that have been written down to estimated fair value for impairment purposes. The impairment losses primarily relate to wholly owned street retail assets.
Our estimate of the fair value of these assets was measured using widely accepted valuation techniques including (i) discounted cash flow analyses based upon market conditions and expectations of growth and utilized unobservable quantitative inputs, including a capitalization rate of 5.0% and discount rate of 7.0%, and (ii) comparable sales activity.
(Amounts in thousands)As of December 31, 2020
TotalLevel 1Level 2Level 3
Real estate assets$191,116 $— $— $191,116 
Financial Assets and Liabilities not Measured at Fair Value
Financial assets and liabilities that are not measured at fair value on our consolidated balance sheets include cash equivalents (primarily money market funds, which invest in obligations of the United States government), and our secured and unsecured debt. Estimates of the fair value of these instruments are determined by the standard practice of modeling the contractual cash flows required under the instrument and discounting them back to their present value at the appropriate current risk adjusted interest rate, which is provided by a third-party specialist. For floating rate debt, we use forward rates derived from observable market yield curves to project the expected cash flows we would be required to make under the instrument. The fair value of cash equivalents and borrowings under our unsecured revolving credit facilities and unsecured term loan are classified as Level 1. The fair value of our secured debt and unsecured debt are classified as Level 2. The table below summarizes the carrying amounts and fair value of these financial instruments.
(Amounts in thousands)As of June 30, 2021As of December 31, 2020
Carrying
Amount
Fair
Value
Carrying
Amount
Fair
Value
Cash equivalents$1,770,459 $1,770,000 $1,476,427 $1,476,000 
Debt:
Mortgages payable$5,585,015 $5,586,000 $5,608,458 $5,612,000 
Senior unsecured notes1,200,000 1,247,000 450,000 476,000 
Unsecured term loan800,000 800,000 800,000 800,000 
Unsecured revolving credit facilities575,000 575,000 575,000 575,000 
Total$8,160,015 
(1)
$8,208,000 $7,433,458 
(1)
$7,463,000 
____________________
(1)Excludes $50,262 and $34,462 of deferred financing costs, net and other as of June 30, 2021 and December 31, 2020, respectively.