MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Increase (Decrease) in Partners' Capital [Roll Forward]
Dividends, Preferred Stock, Cash	$ (922)	$ (922)	$ (1,844)	$ (1,844)
M A A L P
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,019,514	6,215,546	6,088,389	6,289,440
Net Income Available for Common Unitholders	223,875	77,728	272,739	115,680
Other comprehensive income (loss) - derivatives instruments (cash flow hedges)	278	278	557	531
Issuance of units	(467)	(416)	(333)	(377)
Units repurchased and retired	(7,313)	(3,930)	(9,043)	(5,657)
Exercise of unit options			1,466	71
Redeemable stock fair market value adjustment	(3,031)	(1,297)	(5,189)	1,814
Amortization of unearned compensation	4,151	2,864	10,144	8,153
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
Distributions	(121,568)	(118,494)	(243,002)	(236,855)
Contribution from noncontrolling interest	6,131	201	6,764	602
Ending Balance	6,120,648	6,171,558	6,120,648	6,171,558
M A A L P | Limited Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	204,336	211,498	206,927	214,647
Net income	7,397	2,666	9,068	3,970
General partnership units issued in exchange for limited partnership units	(21,932)		(22,164)	(450)
Adjustment for limited partners’ capital at redemption value	(765)	(211)	(639)	(155)
Distributions	(3,696)	(4,059)	(7,852)	(8,118)
Ending Balance	185,340	209,894	185,340	209,894
M A A L P | General Partners' Capital Account [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	5,750,074	5,943,891	5,817,270	6,015,290
Net Income Allocated to General Partners	215,556	74,140	261,827	109,866
Issuance of units	(467)	(416)	(333)	(377)
Units repurchased and retired	(7,313)	(3,930)	(9,043)	(5,657)
Exercise of unit options			1,466	71
General partnership units issued in exchange for limited partnership units	21,932		22,164	450
Redeemable stock fair market value adjustment	(3,031)	(1,297)	(5,189)	1,814
Adjustment for limited partners’ capital at redemption value	765	211	639	155
Amortization of unearned compensation	4,151	2,864	10,144	8,153
Distributions	(117,872)	(114,435)	(235,150)	(228,737)
Ending Balance	5,863,795	5,901,028	5,863,795	5,901,028
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	1,844	1,844
Dividends, Preferred Stock, Cash	(922)	(922)	(1,844)	(1,844)
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	(12,217)	(13,331)	(12,496)	(13,584)
Other comprehensive income (loss) - derivatives instruments (cash flow hedges)	278	278	557	531
Ending Balance	(11,939)	(13,053)	(11,939)	(13,053)
M A A L P | Noncontrolling Interests-Consolidated Real Estate Entities [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	10,481	6,648	9,848	6,247
Contribution from noncontrolling interest	6,131	201	6,764	602
Ending Balance	$ 16,612	$ 6,849	$ 16,612	$ 6,849