XML 41 R26.htm IDEA: XBRL DOCUMENT
v3.21.2

MAALP Capital (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
M A A L P Capital [Abstract] |
Summary of Changes in Total Capital and its Components | Changes in MAALP’s total capital and its components for the three months ended June 30, 2021 and 2020 were as follows (dollars in thousands):
|  | Mid-America Apartments, L.P. Unitholders’ Capital |  |  |  |  |  |  |  |  |
|  | Limited Partners |  |  | General Partner |  |  | Preferred Units |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Partnership Capital |
CAPITAL BALANCE MARCH 31, 2021 |  | $ | 204,336 |  |  | $ | 5,750,074 |  |  | $ | 66,840 |  |  | $ | (12,217 | ) |  | $ | 10,481 |  |  | $ | 6,019,514 |
Net income |  |  | 7,397 |  |  |  | 215,556 |  |  |  | 922 |  |  |  | — |  |  |  | — |  |  |  | 223,875 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 278 |  |  |  | — |  |  |  | 278 |
Issuance of units |  |  | — |  |  |  | (467 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (467 | )
Units repurchased and retired |  |  | — |  |  |  | (7,313 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (7,313 | )
General partnership units issued in exchange for limited partnership units |  |  | (21,932 | ) |  |  | 21,932 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Redeemable units fair market value adjustment |  |  | — |  |  |  | (3,031 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,031 | )
Adjustment for limited partners’ capital at redemption value |  |  | (765 | ) |  |  | 765 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | 4,151 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4,151 |
Distributions to preferred unitholders |  |  | — |  |  |  | — |  |  |  | (922 | ) |  |  | — |  |  |  | — |  |  |  | (922 | )
Distributions to common unitholders ($1.0250 per unit) |  |  | (3,696 | ) |  |  | (117,872 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (121,568 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 6,131 |  |  |  | 6,131 |
CAPITAL BALANCE JUNE 30, 2021 |  | $ | 185,340 |  |  | $ | 5,863,795 |  |  | $ | 66,840 |  |  | $ | (11,939 | ) |  | $ | 16,612 |  |  | $ | 6,120,648 |
|  | Mid-America Apartments, L.P. Unitholders’ Capital |  |  |  |  |  |  |  |  |
|  | Limited Partners |  |  | General Partner |  |  | Preferred Units |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Partnership Capital |
CAPITAL BALANCE MARCH 31, 2020 |  | $ | 211,498 |  |  | $ | 5,943,891 |  |  | $ | 66,840 |  |  | $ | (13,331 | ) |  | $ | 6,648 |  |  | $ | 6,215,546 |
Net income |  |  | 2,666 |  |  |  | 74,140 |  |  |  | 922 |  |  |  | — |  |  |  | — |  |  |  | 77,728 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 278 |  |  |  | — |  |  |  | 278 |
Issuance of units |  |  | — |  |  |  | (416 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (416 | )
Units repurchased and retired |  |  | — |  |  |  | (3,930 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (3,930 | )
Redeemable units fair market value adjustment |  |  | — |  |  |  | (1,297 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,297 | )
Adjustment for limited partners’ capital at redemption value |  |  | (211 | ) |  |  | 211 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | 2,864 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,864 |
Distributions to preferred unitholders |  |  | — |  |  |  | — |  |  |  | (922 | ) |  |  | — |  |  |  | — |  |  |  | (922 | )
Distributions to common unitholders ($1.0000 per unit) |  |  | (4,059 | ) |  |  | (114,435 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (118,494 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 201 |  |  |  | 201 |
CAPITAL BALANCE JUNE 30, 2020 |  | $ | 209,894 |  |  | $ | 5,901,028 |  |  | $ | 66,840 |  |  | $ | (13,053 | ) |  | $ | 6,849 |  |  | $ | 6,171,558 |
Changes in MAALP’s total capital and its components for the six months ended June 30, 2021 and 2020 were as follows (dollars in thousands):
|  | Mid-America Apartments, L.P. Unitholders’ Capital |  |  |  |  |  |  |  |  |
|  | Limited Partners |  |  | General Partner |  |  | Preferred Units |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Partnership Capital |
CAPITAL BALANCE DECEMBER 31, 2020 |  | $ | 206,927 |  |  | $ | 5,817,270 |  |  | $ | 66,840 |  |  | $ | (12,496 | ) |  | $ | 9,848 |  |  | $ | 6,088,389 |
Net income |  |  | 9,068 |  |  |  | 261,827 |  |  |  | 1,844 |  |  |  | — |  |  |  | — |  |  |  | 272,739 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 557 |  |  |  | — |  |  |  | 557 |
Issuance of units |  |  | — |  |  |  | (333 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (333 | )
Units repurchased and retired |  |  | — |  |  |  | (9,043 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (9,043 | )
Exercise of unit options |  |  | — |  |  |  | 1,466 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,466 |
General partnership units issued in exchange for limited partnership units |  |  | (22,164 | ) |  |  | 22,164 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Redeemable units fair market value adjustment |  |  | — |  |  |  | (5,189 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (5,189 | )
Adjustment for limited partners’ capital at redemption value |  |  | (639 | ) |  |  | 639 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | 10,144 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 10,144 |
Distributions to preferred unitholders |  |  | — |  |  |  | — |  |  |  | (1,844 | ) |  |  | — |  |  |  | — |  |  |  | (1,844 | )
Distributions to common unitholders ($2.05 per unit) |  |  | (7,852 | ) |  |  | (235,150 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (243,002 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 6,764 |  |  |  | 6,764 |
CAPITAL BALANCE JUNE 30, 2021 |  | $ | 185,340 |  |  | $ | 5,863,795 |  |  | $ | 66,840 |  |  | $ | (11,939 | ) |  | $ | 16,612 |  |  | $ | 6,120,648 |
|  | Mid-America Apartments, L.P. Unitholders’ Capital |  |  |  |  |  |  |  |  |
|  | Limited Partners |  |  | General Partner |  |  | Preferred Units |  |  | Accumulated Other Comprehensive Loss |  |  | Noncontrolling Interests - Consolidated Real Estate Entities |  |  | Total Partnership Capital |
CAPITAL BALANCE DECEMBER 31, 2019 |  | $ | 214,647 |  |  | $ | 6,015,290 |  |  | $ | 66,840 |  |  | $ | (13,584 | ) |  | $ | 6,247 |  |  | $ | 6,289,440 |
Net income |  |  | 3,970 |  |  |  | 109,866 |  |  |  | 1,844 |  |  |  | — |  |  |  | — |  |  |  | 115,680 |
Other comprehensive income - derivative instruments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 531 |  |  |  | — |  |  |  | 531 |
Issuance of units |  |  | — |  |  |  | (377 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (377 | )
Units repurchased and retired |  |  | — |  |  |  | (5,657 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (5,657 | )
Exercise of unit options |  |  | — |  |  |  | 71 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 71 |
General partnership units issued in exchange for limited partnership units |  |  | (450 | ) |  |  | 450 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Redeemable units fair market value adjustment |  |  | — |  |  |  | 1,814 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,814 |
Adjustment for limited partners’ capital at redemption value |  |  | (155 | ) |  |  | 155 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortization of unearned compensation |  |  | — |  |  |  | 8,153 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 8,153 |
Distributions to preferred unitholders |  |  | — |  |  |  | — |  |  |  | (1,844 | ) |  |  | — |  |  |  | — |  |  |  | (1,844 | )
Distributions to common unitholders ($2.00 per unit) |  |  | (8,118 | ) |  |  | (228,737 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (236,855 | )
Contribution from noncontrolling interest |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 602 |  |  |  | 602 |
CAPITAL BALANCE JUNE 30, 2020 |  | $ | 209,894 |  |  | $ | 5,901,028 |  |  | $ | 66,840 |  |  | $ | (13,053 | ) |  | $ | 6,849 |  |  | $ | 6,171,558 |

X
- Definition MAALP Capital [Abstract] + References No definition available. + Details
Name: | maa_MAALPCapitalAbstract
Namespace Prefix: | maa_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Partners' Capital [Table Text Block] + References No definition available. + Details
Name: | maa_PartnersCapitalTableTextBlock
Namespace Prefix: | maa_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration