MAALP Capital - Summary of Changes in Total Capital and its Components (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Increase (Decrease) in Partners' Capital [Roll Forward]
Dividends on preferred stock	$ (922)	$ (922)	$ (2,766)	$ (2,766)
M A A L P
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	6,120,648	6,171,558	6,088,389	6,289,440
Net Income Available for Common Unitholders	87,047	62,036	359,786	177,716
Other comprehensive income - derivative instruments		279	835	810
Issuance of units	(103)	33	(436)	(344)
Units repurchased and retired			(9,043)	(5,657)
Exercise of unit options	12		1,478	71
Redeemable stock fair market value adjustment	(2,356)	(155)	(7,545)	1,659
Amortization of unearned compensation	4,007	4,380	14,151	12,533
Dividends on preferred stock	(922)	(922)	(2,766)	(2,766)
Distributions	(121,504)	(118,235)	(364,506)	(355,090)
Contribution from noncontrolling interest	3,204	262	9,968	864
Ending Balance	6,090,311	6,119,236	6,090,311	6,119,236
M A A L P | Limited Partner [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	185,340	209,894	206,927	214,647
Net income	2,568	2,126	11,636	6,096
General partnership units issued in exchange for limited partnership units	(11,108)	(21)	(33,272)	(471)
Adjustment for limited partners’ capital at redemption value	(52)	(61)	(587)	(216)
Distributions	(3,486)	(3,866)	(11,338)	(11,984)
Ending Balance	173,366	208,072	173,366	208,072
M A A L P | General Partners' Capital Account [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	5,863,795	5,901,028	5,817,270	6,015,290
Net Income Allocated to General Partners	83,557	58,988	345,384	168,854
Issuance of units	(103)	33	(436)	(344)
Units repurchased and retired			(9,043)	(5,657)
Exercise of unit options	12		1,478	71
General partnership units issued in exchange for limited partnership units	11,108	21	33,272	471
Redeemable stock fair market value adjustment	(2,356)	(155)	(7,545)	1,659
Adjustment for limited partners’ capital at redemption value	52	61	587	216
Amortization of unearned compensation	4,007	4,380	14,151	12,533
Dividends on preferred stock			0
Distributions	(118,018)	(114,369)	(353,168)	(343,106)
Ending Balance	5,841,950	5,849,987	5,841,950	5,849,987
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 on preferred stock	(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	(11,939)	(13,053)	(12,496)	(13,584)
Other comprehensive income - derivative instruments		279	835	810
Ending Balance	(11,661)	(12,774)	(11,661)	(12,774)
M A A L P | Noncontrolling Interests-Consolidated Real Estate Entities [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning Balance	16,612	6,849	9,848	6,247
Contribution from noncontrolling interest	3,204	262	9,968	864
Ending Balance	$ 19,816	$ 7,111	$ 19,816	$ 7,111