Consolidated and Combined Statements of Operations - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUE
Property rentals	$ 123,203,000	$ 116,458,000	$ 375,094,000	$ 316,899,000
Reimbursements from Tenants	9,744,000	9,593,000	28,651,000	27,161,000
Third-party real estate services, including reimbursements	23,788,000	25,141,000	72,278,000	38,881,000
Other income	1,708,000	1,158,000	4,904,000	3,701,000
Total revenue	158,443,000	152,350,000	480,927,000	386,642,000
EXPENSES
Depreciation and amortization	46,603,000	43,951,000	143,880,000	109,726,000
Property operating	34,167,000	29,634,000	95,462,000	77,341,000
Real estate taxes	16,905,000	17,194,000	54,024,000	47,978,000
General and administrative:
Corporate and other	12,415,000	10,593,000	37,759,000	35,536,000
Third-party real estate services	20,754,000	21,178,000	64,552,000	30,362,000
Share-based compensation related to Formation Transaction	8,387,000	14,445,000	26,912,000	14,445,000
Transaction and other costs	4,126,000	104,095,000	12,134,000	115,173,000
Operating Expenses	143,357,000	241,090,000	434,723,000	430,561,000
OPERATING INCOME (LOSS)	15,086,000	(88,740,000)	46,204,000	(43,919,000)
Income (loss) from unconsolidated real estate ventures, net	13,484,000	(1,679,000)	15,418,000	(1,365,000)
Interest and other income (loss), net	4,091,000	(379,000)	5,177,000	1,366,000
Interest expense	(18,979,000)	(15,309,000)	(56,263,000)	(43,813,000)
Gains (Losses) on Sales of Investment Real Estate	11,938,000	0	45,789,000	0
Loss on extinguishment of debt	(79,000)	(689,000)	(4,536,000)	(689,000)
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Bargain Purchase, Reduction Of Gain	0	27,771,000	(7,606,000)	27,771,000
INCOME (LOSS) BEFORE INCOME TAX BENEFIT	25,541,000	(79,025,000)	44,183,000	(60,649,000)
Income tax benefit	841,000	1,034,000	1,436,000	317,000
NET INCOME (LOSS)	26,382,000	(77,991,000)	45,619,000	(60,332,000)
Net (income) loss attributable to redeemable noncontrolling interests	(3,552,000)	8,160,000	(6,532,000)	2,481,000
Net loss attributable to noncontrolling interests	0	0	(127,000)	0
NET INCOME (LOSS) ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 22,830,000	$ (69,831,000)	$ 39,214,000	$ (57,851,000)
EARNINGS (LOSS) PER COMMON SHARE:
Basic (in dollars per share)	$ 0.19	$ (0.61)	$ 0.33	$ (0.55)
Diluted (in dollars per share)	$ 0.19	$ (0.61)	$ 0.33	$ (0.55)
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING - basic and diluted (in shares)	119,835	114,744	118,588	105,347
Weighted Average Number of Shares Outstanding, Diluted	119,835	114,744	118,588	105,347