MAALP Condensed Consolidated Balance Sheets - Limited Partner [Member] - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets:
Land	$ 1,836,417	$ 1,836,417
Buildings, Improvements, and Other	11,363,738	11,281,504
Development and capital improvements in progress	93,089	116,833
Real Estate Investment Property, at Cost	13,293,244	13,234,754
Less accumulated depreciation	(2,194,915)	(2,075,071)
Real Estate Investment Property, Net	11,098,329	11,159,683
Undeveloped land	50,198	57,285
Investments in real estate joint ventures	45,000	44,956
Real estate assets, net	11,193,527	11,261,924
Cash and cash equivalents	59,706	10,750
Restricted Cash	22,404	78,117
Other assets	135,039	135,807
Real Estate Held-for-sale	6,700	5,321
Total assets	11,417,376	11,491,919
Liabilities:
Unsecured notes payable	3,566,664	3,525,765
Secured notes payable	932,187	976,292
Accrued expenses and other liabilities	390,380	405,560
Due to general partner	19	19
Total liabilities	4,889,250	4,907,636
Redeemable units	7,782	10,408
Capital [Abstract]
Preferred Units, Preferred Partners' Capital Accounts	66,840	66,840
General Partners' Capital Account	6,221,216	6,270,758
Limited Partners' Capital Account	226,815	231,676
Accumulated other comprehensive income (losses)	3,167	2,295
Capital	6,518,038	6,571,569
Noncontrolling Interest in Joint Ventures	2,306	2,306
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	6,520,344	6,573,875
Total Liabilities and Capital	$ 11,417,376	$ 11,491,919
Redeemable units, units issued and outstanding	85,289	103,504