Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 142,020	$ 116,628	$ 274,753	$ 233,830
Expenses:
Rental property operating expenses	46,705	40,731	90,192	80,922
Reimbursed expenses	1,047	860	1,979	1,802
General and administrative expenses	8,374	8,071	19,834	14,880
Interest expense	12,059	9,714	22,879	19,492
Depreciation and amortization	50,904	45,675	96,765	90,768
Transaction costs	49,827	137	49,830	228
Other	624	44	804	364
Total costs and expenses	169,540	105,232	282,283	208,456
Income from unconsolidated joint ventures	3,634	5,036	6,538	7,921
Gain on sale of investment properties	1,304	5,317	14,415	4,945
Loss on extinguishment of debt	0	0	0	(85)
Net income (loss)	(22,582)	21,749	13,423	38,155
Net (income) loss attributable to noncontrolling interests	173	(473)	(491)	(836)
Net income (loss) available to common stockholders	$ (22,409)	$ 21,276	$ 12,932	$ 37,319
Net income (loss) per common share — basic and diluted (in usd per share)	$ (0.20)	$ 0.20	$ 0.12	$ 0.36
Weighted average shares — basic (in shares)	112,926	105,073	109,049	105,056
Weighted average shares — diluted (in shares)	114,670	106,875	110,822	106,861
Rental property revenues
Revenues:
Revenues	$ 134,933	$ 114,337	$ 258,798	$ 228,045
Fee income
Revenues:
Revenues	7,076	1,798	15,804	4,692
Other
Revenues:
Revenues	$ 11	$ 493	$ 151	$ 1,093