Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues:
Rental revenues	$ 395,121,000	$ 323,252,000	$ 231,895,000
Other property revenues	11,795,000	8,213,000	4,958,000
Interest income on loan and note receivable	49,542,000	50,190,000	35,948,000
Revenue from Related Parties	11,946,000	15,616,000	21,204,000
miscellaneous revenues	2,023,000	0	0
Total revenues	470,427,000	397,271,000	294,005,000
Operating expenses:
Property operating and maintenance	52,911,000	44,065,000	29,903,000
property salaries related party	20,693,000	17,766,000	13,272,000
Property management fees	13,981,000	11,681,000	8,329,000
Real estate taxes	50,298,000	42,035,000	31,281,000
General and administrative	8,541,000	8,224,000	6,490,000
Share-based Compensation	1,223,000	1,703,000	3,470,000
Depreciation and amortization	185,065,000	171,136,000	116,777,000
Management fees	33,516,000	27,541,000	20,226,000
Loans and Leases Receivable, Allowance	2,038,000	2,533,000	0
Allowance for Loan and Lease Losses, Loans Acquired	(2,038,000)	(2,533,000)	0
Other Expenses	13,687,000	7,166,000	6,598,000
Total operating expenses	381,953,000	333,850,000	236,346,000
manager's fees deferred	(11,764,000)	(6,656,000)	(1,729,000)
Operating Expenses	370,189,000	327,194,000	234,617,000
Operating Income (Loss)	101,805,000	139,782,000	97,023,000
Interest Expense	111,964,000	95,564,000	67,468,000
Gain (Loss) on Extinguishment of Debt	84,000	0	888,000
Gain (Loss) on Sales of Loans, Net	954,000	0	0
Income (Loss) before Gain (Loss) on Sale of Properties	100,238,000	70,077,000	59,388,000
Gains (Losses) on Sales of Investment Real Estate	1,567,000	69,705,000	37,635,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(7,458,000)	44,538,000	28,667,000
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	(7,458,000)	44,538,000	28,667,000
net loss attributable to non-controlling interests	214,000	(1,071,000)	(986,000)
Net loss attributable to the Company	(7,244,000)	43,467,000	27,681,000
Dividends to preferred stockholders	(113,772,000)	(86,741,000)	(63,651,000)
Deemed noncash dividend	768,000	229,000	63,000
NetIncomeAllocatedToUnvestedRestrictedShares	(17,000)	(16,000)	(15,000)
Net Income (Loss) Available to Common Stockholders, Basic	$ (121,033,000)	$ (43,290,000)	$ (35,985,000)
Earnings Per Share, Basic	$ (2.73)	$ (1.08)	$ (1.13)
Dividends, Common Stock, Cash	$ 46,755,000	$ 41,129,000	$ 31,244,000
Common Stock, Dividends, Per Share, Declared	$ 1.0475	$ 1.02	$ 0.94
Weighted Average Number of Shares Outstanding, Diluted	44,265	40,032	31,926
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	$ 1,831,000	$ 320,000	$ 0