Cash and cash equivalents, restricted cash, and accrued expenses and other liabilities are carried at amounts that reasonably approximate their fair value due to their short term nature.

Fixed rate notes payable as of September 30, 2019 and December 31, 2018, totaled $3.8 billion and $3.1 billion, respectively, and had estimated fair values of $4.1 billion and $3.1 billion (excluding prepayment penalties) as of September 30, 2019 and December 31, 2018, respectively. The carrying values of variable rate notes payable (excluding the impact of interest rate swap agreements) as of September 30, 2019 and December 31, 2018, totaled $0.5 billion and $1.1 billion, respectively, and had estimated fair values of $0.5 billion and $1.1 billion (excluding prepayment penalties) as of September 30, 2019 and December 31, 2018, respectively. The fair values of fixed rate debt are determined by using the present value of future cash outflows discounted with the applicable current market rate plus a credit spread. The fair values of variable rate debt are determined using the stated variable rate plus the current market credit spread. The variable rates reset every 30 to 90 days, and management concluded that these rates reasonably estimate current market rates.

As of September 30, 2019, the Company had four outstanding interest rate derivatives with a total notional balance of $300.0 million that were designated as cash flow hedges of interest rate risk, and the Company had two forward rate swaps totaling $150.0 million which hedge the first 10 years of interest rate payments on debt the Company anticipates issuing in the future. The Company uses interest rate swaps to add stability to interest expense; to manage, or hedge, its exposure to interest rate movements associated with its variable rate debt; or as hedges in anticipation of future debt transactions. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts). The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

The fair value of interest rate derivative contracts designated as hedging instruments recorded in "Other assets" in the accompanying Condensed Consolidated Balance Sheets was $0.5 million and $3.7 million as of September 30, 2019 and December 31, 2018,

respectively. The fair value of interest rate derivative contract liabilities recorded in "Accrued expenses and other liabilities" in the accompanying Condensed Consolidated Balance Sheets was $10.5 million and $5.3 million as of September 30, 2019 and December 31, 2018, respectively.

To comply with the provisions of ASC Topic 820, management incorporates credit valuation adjustments to appropriately reflect both its nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of the derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. Based on guidance issued by the FASB, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

The derivative asset related to the redemption feature embedded in the MAA Series I preferred stock is valued using widely accepted valuation techniques, including a discounted cash flow analysis in which the perpetual value of the preferred shares is compared to the value of the preferred shares assuming the call option is exercised, with the value of the bifurcated call option as the difference between the two values. This analysis reflects the contractual terms of the redeemable preferred shares, which are redeemable at the Company's option beginning on October 1, 2026 and at the redemption price of $50 per share (see Note 8). The analysis uses observable market-based inputs, including trading data available on the preferred shares, coupon yields on preferred stock issuances from REITs with similar credit ratings as MAA and treasury rates to determine the fair value of the bifurcated call option.

The redemption feature embedded in the MAA Series I preferred stock is reported as a derivative asset in "Other assets" in the accompanying Condensed Consolidated Balance Sheets and is adjusted to its fair value at each reporting date, with a corresponding non-cash adjustment to "Other non-operating income" in the accompanying Condensed Consolidated Statements of Operations. As a result of adjustments of non-cash income recorded to reflect the change in fair value of the derivative asset during the nine months ended September 30, 2019, the fair value of the embedded derivative increased to $38.2 million as of September 30, 2019 as compared to $18.6 million as of December 31, 2018.

The Company has determined the majority of the inputs used to value its outstanding debt and derivatives, including its embedded derivative, fall within Level 2 of the fair value hierarchy, and as a result, the fair value valuation of its debt and all of its derivatives held as of September 30, 2019 and December 31, 2018 were classified as Level 2 in the fair value hierarchy. The Company's derivative financial instruments and their related gains and losses are reported in "Net change in operating accounts and other" in the accompanying Condensed Consolidated Statements of Cash Flows.

The changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in "Accumulated other comprehensive loss" and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. As long as a hedging instrument is designated and the results of the effectiveness testing support that the instrument qualifies for hedge accounting treatment, there is no periodic measurement or recognition of ineffectiveness. Rather, the full impact of hedge gains and losses will be recognized in the period in which hedged transactions impact earnings, regardless of whether or not economic mismatches exist in the hedging relationship. Amounts reported in "Accumulated other comprehensive loss" related to derivatives designated as qualifying cash flow hedges will be reclassified to interest expense as interest payments are made on the Company's variable rate or fixed rate debt. During the next twelve months, the Company estimates that an additional $1.0 million will be reclassified to earnings as a decrease to "Interest expense", which primarily represents the difference between the fixed interest rate swap payments and the projected variable interest rate swap receipts.

Tabular Disclosure of the Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations

The tables below present the effect of the Company's derivative financial instruments on the Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2019 and 2018 (dollars in thousands):

Derivatives in Cash Flow Hedging Relationships	(Loss) Gain Recognized in OC(L)I on Derivative					Location of Gain Reclassified from Accumulated	Net Gain Reclassified from Accumulated OCL into Interest Expense⁽¹⁾
Three months ended September 30,	2019			2018		OCL into Income	2019		2018
Interest rate contracts	$	(5,562	)	$	4,245	Interest expense	$	411	$	548
Nine months ended September 30,
Interest rate contracts	$	(13,444	)	$	10,797	Interest expense	$	1,734	$	1,296

Derivatives Not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in	Gain (Loss) Recognized in Earnings on Derivative
Three months ended September 30,	Income on Derivative	2019		2018
Preferred stock embedded derivative	Other non-operating income	$	15,522	$	(433	)
Nine months ended September 30,
Preferred stock embedded derivative	Other non-operating income	$	19,592	$	(284	)

Certain of the Company's derivative contracts contain a provision where the Company could be declared in default on its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company's default on the indebtedness. As of September 30, 2019, the Company had not breached the provisions of these agreements. If the provisions had been breached, the Company could have been required to settle its obligations under the agreements at the termination value of $10.2 million as of September 30, 2019. Although the Company's derivative contracts are subject to master netting arrangements, which serve as credit mitigants to both the Company and its counterparties under certain situations, the Company does not net its derivative fair values or any existing rights or obligations to cash collateral in the Condensed Consolidated Balance Sheets.