Disclosure About Fair Value of Financial Instruments

The following summarizes the levels of inputs that we use to measure fair value.

Level 1. Quoted prices in active markets for identical assets or liabilities.

Our Level 1 asset is our investment in marketable securities that we use to pay benefits under our non-qualified deferred compensation plan. Our Level 1 liability is our non-qualified deferred compensation obligation. The Company's Level 1 noncontrolling interests in the Operating Partnership relate to the ownership of Common Units by various individuals and entities other than the Company.

Level 2. Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities.

Our Level 2 assets include the fair value of our mortgages and notes receivable and certain interest rate swaps. Our Level 2 liabilities include the fair value of our mortgages and notes payable and remaining interest rate swaps.

The fair value of mortgages and notes receivable and mortgages and notes payable is estimated by the income approach utilizing contractual cash flows and market-based interest rates to approximate the price that would be paid in an orderly transaction between market participants. The fair value of interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments of interest rate swaps are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves. In addition, credit valuation adjustments are considered in the fair values to account for potential nonperformance risk, but were concluded to not be significant inputs to the calculation for the periods presented.

Level 3. Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Our Level 3 assets include any real estate assets recorded at fair value on a non-recurring basis as a result of our quarterly impairment analysis, which are valued using the terms of definitive sales contracts or the sales comparison approach.


9.	Disclosure About Fair Value of Financial Instruments - Continued

The following table sets forth our assets and liabilities and the Company's noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy.



			Level 1		Level 2		Level 3
	Total		Quoted Prices in Active Markets for Identical Assets or Liabilities		Significant Observable Inputs		Significant Unobservable Inputs
Fair Value at December 31, 2018:
Assets:
Mortgages and notes receivable, at fair value (1)	$	5,599	$	—	$	5,599	$	—
Interest rate swaps (in prepaid expenses and other assets)	1,146		—		1,146		—
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	1,849		1,849		—		—
Impaired real estate assets	10,252		—		—		10,252
Total Assets	$	18,846	$	1,849	$	6,745	$	10,252
Noncontrolling Interests in the Operating Partnership	$	105,960	$	105,960	$	—	$	—
Liabilities:
Mortgages and notes payable, net, at fair value (1)	$	2,056,248	$	—	$	2,056,248	$	—
Interest rate swaps (in accounts payable, accrued expenses and other liabilities)	3,581		—		3,581		—
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	1,849		1,849		—		—
Total Liabilities	$	2,061,678	$	1,849	$	2,059,829	$	—



Fair Value at December 31, 2017:
Assets:
Mortgages and notes receivable, at fair value (1)	$	6,425	$	—	$	6,425	$	—
Interest rate swaps (in prepaid expenses and other assets)	1,286		—		1,286		—
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	2,388		2,388		—		—
Total Assets	$	10,099	$	2,388	$	7,711	$	—
Noncontrolling Interests in the Operating Partnership	$	144,009	$	144,009	$	—	$	—
Liabilities:
Mortgages and notes payable, net, at fair value (1)	$	2,015,689	$	—	$	2,015,689	$	—
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	2,388		2,388		—		—
Total Liabilities	$	2,018,077	$	2,388	$	2,015,689	$	—

__________

(1) Amounts recorded at historical cost on our Consolidated Balance Sheets at December 31, 2018 and 2017.

The impaired real estate assets that were measured in the fourth quarter of 2018 and the third quarter of 2017 at fair values of $10.3 million and $5.9 million, respectively, and deemed to be Level 3 assets were valued based primarily on market-based inputs and our assumptions about the use of the assets, as observable inputs were not available. In the absence of observable inputs, we estimate the fair value of real estate using unobservable local and national industry market data such as comparable sales, sales contracts and appraisals to assist us in our estimation of fair value. Significant increases or decreases in any valuation inputs in isolation would result in a significantly lower or higher fair value measurement.