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MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Dividends, Preferred Stock, Cash | $ (922) | $ (922) | $ (2,766) | $ (2,766)
M A A L P |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | 6,272,507 | 6,479,461 | 6,372,170 | 6,573,875
Net Income Available for Common Unitholders | 81,459 | 54,704 | 211,558 | 167,505
Other comprehensive (loss) income - derivatives instruments (cash flow hedges) | (5,973) | 3,697 | (15,178) | 9,501
Issuance of units | 140 | (35) | 750 | (271)
Units repurchased and retired |  |  | (3,724) | (2,912)
Exercise of unit options | (204) | 291 | 1,036 | 916
Units issued in exchange for redeemable units |  |  | 575 | 1,915
Redeemable stock fair market value adjustment | (1,269) | 48 | (3,455) | 121
Amortization of unearned compensation | 3,313 | 2,890 | 11,550 | 9,877
Dividends, Preferred Stock, Cash | (922) | (922) | (2,766) | (2,766)
Distributions | (113,415) | (108,599) | (340,230) | (326,226)
Contribution from noncontrolling interest | 955 |  | 4,305 |
Ending Balance | 6,236,591 | 6,431,535 | 6,236,591 | 6,431,535
M A A L P | Limited Partner [Member] |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | 215,404 | 224,813 | 220,043 | 231,676
Net income | 2,814 | 1,913 | 7,336 | 5,888
General partnership units issued in exchange for limited partnership units | (836) | (1,165) | (1,993) | (4,283)
Adjustment for limited partners' capital at redemption value | 77 | (139) | (61) | (226)
Distributions | (3,912) | (3,581) | (11,778) | (11,214)
Ending Balance | 213,547 | 221,841 | 213,547 | 221,841
M A A L P | General Partners' Capital Account [Member] |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | 5,993,973 | 6,177,170 | 6,083,142 | 6,270,758
Net Income Allocated to General Partners | 77,723 | 51,869 | 201,456 | 158,851
Issuance of units | 140 | (35) | 750 | (271)
Units repurchased and retired |  |  | (3,724) | (2,912)
Exercise of unit options | (204) | 291 | 1,036 | 916
General partnership units issued in exchange for limited partnership units | 836 | 1,165 | 1,993 | 4,283
Units issued in exchange for redeemable units |  |  | 575 | 1,915
Redeemable stock fair market value adjustment | (1,269) | 48 | (3,455) | 121
Adjustment for limited partners' capital at redemption value | (77) | 139 | 61 | 226
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  |  |  | (233)
Amortization of unearned compensation | 3,313 | 2,890 | 11,550 | 9,877
Distributions | (109,503) | (105,018) | (328,452) | (315,012)
Ending Balance | 5,964,932 | 6,128,519 | 5,964,932 | 6,128,519
M A A L P | Accumulated Distributions in Excess of Net Income [Member] |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | 66,840 | 66,840 | 66,840 | 66,840
Net income | 922 | 922 | 2,766 | 2,766
Dividends, Preferred Stock, Cash | (922) | (922) | (2,766) | (2,766)
Ending Balance | 66,840 | 66,840 | 66,840 | 66,840
M A A L P | AOCI Attributable to Noncontrolling Interest [Member] |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | (9,366) | 8,332 | (161) | 2,295
Other comprehensive (loss) income - derivatives instruments (cash flow hedges) | (5,973) | 3,697 | (15,178) | 9,501
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  |  |  | 233
Ending Balance | (15,339) | 12,029 | (15,339) | 12,029
M A A L P | Noncontrolling Interests-Consolidated Real Estate Entities [Member] |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |
Beginning Balance | 5,656 | 2,306 | 2,306 | 2,306
Contribution from noncontrolling interest | 955 |  | 4,305 |
Ending Balance | $ 6,611 | $ 2,306 | $ 6,611 | $ 2,306

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