XML 44 R27.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Fair Value of Instruments and Derivatives Fair Value of Derivatives and Financial Instruments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Fair Value Disclosures [Abstract] |
Schedule of Interest Rate Derivatives [Table Text Block] | As of March 31, 2018, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:
Interest Rate Derivative |  | Number of Instruments |  | Notional Amount
Interest Rate Cap |  | 1 |  | $ | 25,000,000 |
Interest Rate Swaps(1) |  | 12 |  | $ | 550,000,000 |
Derivative Instruments, Gain (Loss) [Table Text Block] | 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 months ended March 31, 2018 and 2017 (dollars in thousands):
Derivatives in Cash Flow Hedging Relationships |  | Amount of Gain Recognized in OCI on Derivative (Effective Portion) |  | Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |  | Amount of Gain (Loss) Reclassified from Accumulated OCI into Interest Expense (Effective Portion)
Three months ended March 31, |  | 2018 |  | 2017 |  |  | 2018 |  | 2017
Interest rate contracts |  | $ | 832 |  |  | $ | 2,520 |  |  | Interest Expense |  | $ | 193 |  |  | $ | (672 | )
Derivatives Not Designated as Hedging Instruments |  | Location of (Loss) Gain Recognized in Income on Derivative |  | Amount of (Loss) Gain Recognized in Earnings on Derivative
For the three months ended March 31, |  |  | 2018 |  | 2017
Preferred stock embedded derivative |  | Non-operating (expense) income |  | $ | (2,644 | ) |  | $ | 2,353 |
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income | Changes in Accumulated Other Comprehensive Income The Company's other comprehensive income consists entirely of gains and losses attributable to the effective portion of its cash flow hedges. The table below reflects the change in the balance for the three months ended March 31, 2018 and 2017 (dollars in thousands):
|  | Affected Line Item in the Condensed Consolidated Statements Of Operations |  | Three months ended March 31,
|  |  | 2018 |  | 2017
Beginning balance |  |  |  | $ | 2,157 |  |  | $ | 1,144 |
Other comprehensive income before reclassifications |  |  |  | 832 |  |  | 2,520 |
Amounts reclassified from Accumulated other comprehensive income - interest rate contracts |  | Interest expense |  | (193 | ) |  | 672 |
Net current period other comprehensive income attributable to noncontrolling interests |  |  |  | (29 | ) |  | (113 | )
Cumulative adjustment due to adoption of ASU 2017-12 |  |  |  | 233 |  |  | — |
Change in Accumulated other comprehensive income attributable to MAA |  |  |  | 843 |  |  | 3,079 |
Ending balance |  |  |  | $ | 3,000 |  |  | $ | 4,223 |

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 + Details
Name: | us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
Name: | us-gaap_ScheduleOfInterestRateDerivativesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration