Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accumulated Depreciation, Depletion and Amortization, Sale or Disposal of Property, Plant and Equipment	$ 611,111	$ 578,496
Finite-Lived Intangible Assets, Accumulated Amortization	171,608	166,214
sales inducements accumulated amortization	7,560	7,113
Below Market Lease, Accumulated Amortization	$ 37,963	36,314
Common stock, shares outstanding	62,929,382
Financing Receivable, Related Party, Allowance For Doubtful Accounts	$ 10,277	$ 9,850
Series A Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	3,050,000	3,050,000
Preferred stock, shares issued	2,226,000	2,226,000
Shares outstanding, preferred stock	1,302,000	1,321,000
Series M Preferred Stock [Member]
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	500,000	500,000
Preferred stock, shares issued	106,000	106,000
Shares outstanding, preferred stock	83,000	84,000
Common Stock [Member]
Common Stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	400,067,000	400,067,000
Common Stock, Shares, Issued	62,929,000	52,975,000
Common stock, shares outstanding	62,929,000	52,975,000
Series A1 Preferred Stock
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	247,000	247,000
Shares outstanding, preferred stock	246,000	246,000
Series M1 Preferred Stock
Series A Redeemable Preferred Stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	47,000	43,000
Shares outstanding, preferred stock	44,000	41,000
Mortgages [Member]
Deferred loan costs, accumulated amortization	$ 38,445	$ 39,288