CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Rental revenue	$ 323,182,000	$ 278,806,000
Rental revenue			$ 257,308,000
Total revenues	699,489,000	1,300,539,000	1,064,537,000
EXPENSES
Operating costs	226,791,000	294,486,000	248,029,000
Rental property real estate taxes	52,815,000	36,861,000	32,183,000
Provision for (recovery of) doubtful accounts	6,009,000	(414,000)	6,078,000
Demolition costs	0	855,000	17,329,000
Development-related marketing costs	8,166,000	23,067,000	29,249,000
General and administrative	109,402,000	162,506,000	110,582,000
Depreciation and amortization	217,467,000	155,798,000	126,565,000
Total expenses	830,384,000	1,184,770,000	956,791,000
OTHER
Provision for impairment	(48,738,000)	0	0
Gain (loss) on sale or disposal of real estate and other assets, net	59,942,000	22,362,000	(4,000)
Other income (loss), net	130,000	12,179,000	(936,000)
Total other	11,334,000	34,541,000	(940,000)
Operating income (loss)	(119,561,000)	150,310,000	106,806,000
Selling profit from sales-type leases	0	13,537,000
Interest income	2,368,000	9,797,000	8,486,000
Interest expense	(132,257,000)	(105,374,000)	(82,028,000)
Gain (loss) on extinguishment of debt	(13,169,000)	4,641,000	0
Equity in earnings (losses) from real estate and other affiliates	271,099,000	30,629,000	39,954,000
Income (loss) before income taxes	8,480,000	103,540,000	73,218,000
Income tax expense (benefit)	11,653,000	29,245,000	15,492,000
Net income (loss)	(3,173,000)	74,295,000	57,726,000
Net (income) loss attributable to noncontrolling interests	(22,981,000)	(339,000)	(714,000)
Net income (loss) attributable to common stockholders	$ (26,154,000)	$ 73,956,000	$ 57,012,000
Basic income per share: (in dollars per share)	$ (0.50)	$ 1.71	$ 1.32
Diluted income per share: (in dollars per share)	$ (0.50)	$ 1.71	$ 1.32
Condominium rights and unit sales
Revenues:
Revenue	$ 1,143,000	$ 448,940,000	$ 357,720,000
EXPENSES
Cost of goods and services sold	108,229,000	369,759,000	262,562,000
Master Planned Communities land sales
Revenues:
Revenue	233,044,000	330,146,000	261,905,000
EXPENSES
Cost of goods and services sold	101,505,000	141,852,000	124,214,000
Other land, rental and property revenues
Revenues:
Revenue	105,048,000	206,966,000	160,519,000
Builder price participation
Revenues:
Revenue	$ 37,072,000	$ 35,681,000	$ 27,085,000