XML 32 R15.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Fair Value Disclosure of Financial Instruments | 6 Months Ended
--- | ---
Jun. 30, 2016
Notes To Financial Statements [Abstract] |
Fair Value Disclosure of Financial Instruments | Fair Value Disclosure of Financial Instruments Fair value is based on the price that would be received to sell an asset or the exit price that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. A three-level valuation hierarchy prioritizes observable and unobservable inputs used to measure fair value. The fair value hierarchy consists of three broad levels, which are described below:
• | Level 1 - Quoted prices in active markets for identical assets or liabilities that the entity has the ability to access.
• | Level 2 - Observable inputs other than prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated with observable market data.
• | Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets and liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs.
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. Our 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. Financial Instruments Not Carried at Fair Value At June 30, 2016, the fair values of cash and cash equivalents, restricted cash, accounts payable, accrued expenses and other liabilities and security deposits approximated their carrying value due to their short term nature. Fixed rate notes payable at June 30, 2016 and December 31, 2015, totaled $2.57 billion and $2.61 billion, respectively, and had estimated fair values of $2.76 billion and $2.71 billion (excluding prepayment penalties), respectively, as of June 30, 2016 and December 31, 2015. The carrying value of variable rate notes payable (excluding the effect of interest rate swap and cap agreements) at June 30, 2016 and December 31, 2015, totaled $920.0 million and $815.0 million, respectively, and had estimated fair values of $909.3 million and $817.7 million (excluding prepayment penalties), respectively, as of June 30, 2016 and December 31, 2015. The valuation of our debt is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each debt instrument. This analysis reflects the contractual terms of the debt, and uses observable market-based inputs, including interest rate curves and credit spreads. The fair values of fixed 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 debt are determined using the stated variable rate plus the current market credit spread. Our variable rates reset every 30 to 90 days and we conclude that these rates reasonably estimate current market rates. We have determined that inputs used to value our debt fall within Level 2 of the fair value hierarchy and therefore our fair market valuation of debt is considered Level 2 in the fair value hierarchy. Financial Instruments Carried at Fair Value Currently, we use interest rate swaps and interest rate caps (options) to manage our interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. 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 values of interest rate options are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the caps. The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. We incorporate credit valuation adjustments to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts and guarantees. In conjunction with the FASB's fair value measurement guidance, we made an accounting policy election to measure the credit risk of our derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. We have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, and as a result, all of our derivatives held as of June 30, 2016 and December 31, 2015 were classified as Level 2 in the fair value hierarchy. The table below presents a summary of the fair value measurements for each major category of assets and liabilities measured at fair value on a recurring basis and the location within the accompanying Condensed Consolidated Balance Sheets at June 30, 2016 and December 31, 2015, aggregated by the level in the fair value hierarchy within which those measurements fall. Assets and Liabilities Measured at Fair Value on a Recurring Basis at June 30, 2016 (dollars in thousands)
Derivatives in cash flow hedging relationships | Balance Sheet Location | Quoted Prices in Active Markets for Identical Assets and Liabilities |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |  |
(Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Assets |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts | Other assets | $ | — |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts | Fair market value of interest rate swaps | $ | — |  |  | $ | 11,760 |  |  | $ | — |  |  | $ | 11,760 |
Assets and Liabilities Measured at Fair Value on a Recurring Basis at December 31, 2015 (dollars in thousands)
Derivatives in cash flow hedging relationships | Balance Sheet Location | Quoted Prices in Active Markets for Identical Assets and Liabilities |  | Significant Other Observable Inputs |  | Significant Unobservable Inputs |  |
(Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Assets |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts | Other assets | $ | — |  |  | $ | 6 |  |  | $ | — |  |  | $ | 6 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts | Fair market value of interest rate swaps | $ | — |  |  | $ | 10,358 |  |  | $ | — |  |  | $ | 10,358 |
The fair value estimates presented herein are based on information available to management as of June 30, 2016 and December 31, 2015. These estimates are not necessarily indicative of the amounts we could ultimately realize. See also discussions in Note 7 (Derivatives and Hedging Activities) to the Condensed Consolidated Financial Statements.

X
- Definition Notes to Financial Statements [Abstract] + References No definition available. + Details
Name: | maa_NotesToFinancialStatementsAbstract
Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13504-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 + Details
Name: | us-gaap_FairValueDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration