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Derivatives and Hedging Activities (Tables) | 9 Months Ended
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Sep. 30, 2017
Notes To Financial Statements [Abstract] |
Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk | As of September 30, 2017, we 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 Caps |  | 2 |  | $ | 50,000,000 |
Interest Rate Swaps |  | 10 |  | $ | 550,000,000 |
Effect of Derivative Instruments on Consolidated Statement of Operations | Tabular Disclosure of the Effect of Derivative Instruments on the Condensed Consolidated Statements of Operations The table below presents the effect of our derivative financial instruments on the Condensed Consolidated Statements of Operations for the three and nine months ended September 30, 2017 and 2016 (dollars in thousands):
Derivatives in Cash Flow Hedging Relationships |  | Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion) |  | Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |  | Amount of Gain or (Loss) Reclassified from Accumulated OCI into Interest Expense (Effective Portion) |  | Location of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing) |  | Amount of Gain or (Loss) Recognized in Interest Expense (Ineffective Portion and Amount Excluded from Effectiveness Testing)
Three months ended September 30, |  | 2017 |  | 2016 |  |  | 2017 |  | 2016 |  |  | 2017 |  | 2016
Interest rate contracts |  | $ | 90 |  |  | $ | 1,179 |  |  | Interest Expense |  | $ | 33 |  |  | $ | (1,042 | ) |  | Interest Expense |  | $ | (3 | ) |  | $ | 96 |
Nine months ended September 30, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contracts |  | $ | (1,252 | ) |  | $ | (3,840 | ) |  | Interest Expense |  | $ | (884 | ) |  | $ | (3,359 | ) |  | Interest Expense |  | $ | (17 | ) |  | $ | (67 | )
Derivatives Not Designated as Hedging Instruments |  |  |  |  |  |  |  |  |  |  |  | Location of Gain Recognized in Income on Derivative |  | Amount of Gain Recognized in Income on Derivative
Three months ended September 30, |  |  |  |  |  |  |  |  |  |  |  |  | 2017 |  | 2016
Preferred stock embedded derivative |  |  |  |  |  |  |  |  |  |  |  | Interest and other non-property income |  | $ | 4,107 |  |  | $ | — |
Nine months ended September 30, |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock embedded derivative |  |  |  |  |  |  |  |  |  |  |  | Interest and other non-property income |  | $ | 5,827 |  |  | $ | — |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Other Comprehensive Income MAA's other comprehensive income consists entirely of gains and losses attributable to the effective portion of our cash flow hedges. The chart below shows the change in the balance for the nine months ended September 30, 2017 and 2016 (dollars in thousands):
Changes in Accumulated Other Comprehensive Income (Loss) by Component
|  | Affected Line Item in the Condensed Consolidated Statements Of Operations |  | Gains and Losses on Cash Flow Hedges
For the nine months ended September 30, |  |  | 2017 |  | 2016
Beginning balance |  |  |  | $ | 1,144 |  |  | $ | (1,589 | )
Other comprehensive income (loss) before reclassifications |  |  |  | (1,252 | ) |  | (3,840 | )
Amounts reclassified from accumulated other comprehensive income (interest rate contracts) |  | Interest expense |  | 884 |  |  | 3,359 |
Net current-period other comprehensive loss attributable to noncontrolling interests |  |  |  | 14 |  |  | 25 |
Net current-period other comprehensive loss attributable to MAA |  |  |  | (354 | ) |  | (456 | )
Ending balance |  |  |  | $ | 790 |  |  | $ | (2,045 | )

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- 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
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- 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
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- 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
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