Nature of Business and Financial Statement Presentation - Non-cash Investing and Financing Activities (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Other Significant Noncash Transactions [Line Items]
Dividends declared, but not paid	$ 44,643	$ 45,400	$ 45,262
Accounts payable related to construction in progress	14,900	8,200
Receivable and reduction of real estate assets, net - related to hurricane	0	7,800
Conversion of Operating Partnership Units	0	900
Retail Value Inc. [Member]
Other Significant Noncash Transactions [Line Items]
Contribution of net assets to RVI	0	663,400
Building [Member]
Other Significant Noncash Transactions [Line Items]
Assumption of building due to ground lease termination	$ 0	$ 2,200