CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Rental revenues and other property income	$ 449,755	$ 441,582	$ 899,544	$ 877,082
Expenses:
Property operating and maintenance	167,002	166,574	333,918	326,920
Property management expense	14,529	16,021	28,901	31,181
General and administrative	14,426	15,956	28,654	42,494
Interest expense	86,071	95,706	170,828	189,689
Depreciation and amortization	137,266	133,031	272,293	266,640
Impairment and other	(180)	1,671	2,947	7,063
Total expenses	419,114	428,959	837,541	863,987
Other, net	1,370	610	5,084	3,735
Gain on sale of property, net of tax	11,167	26,172	26,367	43,744
Net income	43,178	39,405	93,454	60,574
Net income attributable to non-controlling interests	(275)	(463)	(595)	(810)
Net income attributable to common stockholders	42,903	38,942	92,859	59,764
Net income available to participating securities	(119)	(109)	(221)	(215)
Net income available to common stockholders — basic and diluted (Note 12)	$ 42,784	$ 38,833	$ 92,638	$ 59,549
Weighted average common shares outstanding — basic	548,811,968	525,070,036	545,680,740	523,265,455
Weighted average common shares outstanding — diluted	549,920,213	525,933,643	546,836,809	524,190,469
Net income per common share — basic	$ 0.08	$ 0.07	$ 0.17	$ 0.11
Net income per common share — diluted	$ 0.08	$ 0.07	$ 0.17	$ 0.11