MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Increase (Decrease) in Partners' Capital [Roll Forward]
Dividends, Preferred Stock, Cash	$ (922)	$ (922)
M A A L P
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,289,440	6,372,170
Net Income Available for Common Unitholders	37,952	65,958
Other comprehensive income (loss) - derivatives instruments (cash flow hedges)	253	(3,201)
Issuance of units	39	1,129
Units repurchased and retired	(1,727)	(3,023)
Exercise of unit options	71	208
Redeemable stock fair market value adjustment	3,111	(1,351)
Amortization of unearned compensation	5,289	4,785
Dividends, Preferred Stock, Cash	(922)	(922)
Distributions	(118,361)	(113,333)
Contribution from noncontrolling interest	401	2,860
Ending Balance	6,215,546	6,325,280
M A A L P \| Limited Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	214,647	220,043
Net income	1,304	2,298
General partnership units issued in exchange for limited partnership units	(450)	(336)
Adjustment for limited partners’ capital at redemption value	56	(53)
Distributions	(4,059)	(3,941)
Ending Balance	211,498	218,011
M A A L P \| General Partners' Capital Account [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,015,290	6,083,142
Net Income Allocated to General Partners	35,726	62,738
Issuance of units	39	1,129
Units repurchased and retired	(1,727)	(3,023)
Exercise of unit options	71	208
General partnership units issued in exchange for limited partnership units	450	336
Redeemable stock fair market value adjustment	3,111	(1,351)
Adjustment for limited partners’ capital at redemption value	(56)	53
Amortization of unearned compensation	5,289	4,785
Distributions	(114,302)	(109,392)
Ending Balance	5,943,891	6,038,625
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
Net income	922	922
Dividends, Preferred Stock, Cash	(922)	(922)
Ending Balance	66,840	66,840
M A A L P \| AOCI Attributable to Noncontrolling Interest [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	(13,584)	(161)
Other comprehensive income (loss) - derivatives instruments (cash flow hedges)	253	(3,201)
Ending Balance	(13,331)	(3,362)
M A A L P \| Noncontrolling Interests-Consolidated Real Estate Entities [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,247	2,306
Contribution from noncontrolling interest	401	2,860
Ending Balance	$ 6,648	$ 5,166

Adjustment for limited partners' capital at redemption value.

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General Partnership Units Issued in Exchange for Limited Partnership Units

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Net Income Available for Common Unitholders

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Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Aggregate amount of net income allocated to general partners.

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The amount of ownership interest of different classes of partners in limited partnership.

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