Consolidated Statements of Income - USD ($)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Rental and related revenues		$ 436,893,000	$ 418,190,000	$ 404,379,000
Interest income on real estate loans and other		20,806,000	19,315,000	10,902,000
Total revenues		457,699,000	437,505,000	415,281,000
Expenses:
Interest expense		60,136,000	57,179,000	65,022,000
General and administrative		37,757,000	33,763,000	33,099,000
Operating expenses		137,408,000	128,198,000	124,819,000
Depreciation and amortization		157,870,000	149,590,000	146,436,000
Impairment loss		340,000	4,872,000	0
Total expenses		393,511,000	373,602,000	369,376,000
Income before equity in loss of unconsolidated entities and gain on sale of investment properties, net:		64,188,000	63,903,000	45,905,000
Equity in loss of unconsolidated entities		(1,570,000)	(1,257,000)	(28,000)
Gain on sale of investment properties, net		24,165,000	5,842,000	31,309,000
Net income		86,783,000	68,488,000	77,186,000
Net income attributable to noncontrolling interests:
Operating Partnership		(2,211,000)	(1,797,000)	(2,155,000)
Partially owned properties	[1]	(607,000)	(574,000)	(548,000)
Net income attributable to controlling interest		83,965,000	66,117,000	74,483,000
Preferred distributions		(13,000)	(1,241,000)	(1,209,000)
Net income attributable to common shareholders		$ 83,952,000	$ 64,876,000	$ 73,274,000
Net income per share:
Basic (in dollars per share)		$ 0.39	$ 0.32	$ 0.39
Diluted (in dollars per share)		$ 0.39	$ 0.32	$ 0.39
Weighted average common shares:
Basic (in shares)		216,135,385	204,243,768	185,770,251
Diluted (in shares)		223,060,556	211,145,917	191,626,320
Dividends and distributions declared per common share (in dollars per share)		$ 0.92	$ 0.92	$ 0.92

[1] Includes amounts attributable to redeemable noncontrolling interests.