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Related Party Transactions and Arrangements - Additional Information (Detail)		3 Months Ended		6 Months Ended
	Oct. 05, 2016 shares	Jun. 30, 2017 USD ($) Property	Jun. 30, 2016 USD ($) Property	Jun. 30, 2017 USD ($) Property shares	Jun. 30, 2016 USD ($) Property	Dec. 31, 2016 USD ($)
Related Party Transaction [Line Items]
Dividends paid, common stock				$ 24,895,000
Number of property dispositions | Property		3		3
Number of property acquired | Property		704		704
Acquisition of real estate properties				$ 84,417,000
Common Shares
Related Party Transaction [Line Items]
Common stock repurchased and retired shares | shares				60,024
R A I T Financial Trust
Related Party Transaction [Line Items]
Dividends paid, common stock		$ 0	$ 1,308,000	$ 0	$ 2,617,000
Repayment of term loan facility			$ 38,075,000
Number of property dispositions | Property			2		2
Former Advisor
Related Party Transaction [Line Items]
Asset management fees earned		0	$ 1,784,000	0	$ 3,415,000
Incentive fee earned by the former advisor		0	79,000	0	144,000
Former Advisor | Shared Services Agreement
Related Party Transaction [Line Items]
Cost incurred for service provided		340,000	0	727,000	0
Former Advisor | Incentive Fees
Related Party Transaction [Line Items]
Former advisor and management fees payable		0		0		$ 0
Property Manager
Related Party Transaction [Line Items]
Former advisor and management fees payable		0		0		$ 0
Property management and leasing fees		$ 0	1,229,000	$ 0	2,491,000
R A I T Financial Trust | Durham, NC
Related Party Transaction [Line Items]
Number of property acquired | Property		328		328
Acquisition of real estate properties				$ 42,950,000
R A I T Financial Trust | Common Shares
Related Party Transaction [Line Items]
Common stock repurchased and retired shares | shares	7,269,719
Sponsor | R A I T Financial Trust
Related Party Transaction [Line Items]
Total interest expense paid		$ 0	$ 0	$ 486,000	$ 486,000

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