Investments in Unconsolidated Real Estate Ventures - New Unconsolidated Joint Ventures (Details) $ in Thousands	12 Months Ended
Dec. 31, 2018 USD ($) store JointVenture	Dec. 31, 2017 USD ($) store	Dec. 31, 2016 USD ($) store
Schedule of Equity Method Investments [Line Items]
Number of Stores \| store	28	39	8
Investment in new stores	$ 63,723	$ 13,341	$ 26,387
Number of new joint ventures with preferred equity investment \| JointVenture	2
Minimum
Schedule of Equity Method Investments [Line Items]
Equity ownership %	10.00%	10.00%	20.00%
Maximum
Schedule of Equity Method Investments [Line Items]
Equity ownership %	50.00%	25.00%	50.00%
WICNN JV LLC
Schedule of Equity Method Investments [Line Items]
Equity ownership %	10.00%
Joint venture preferred equity investment	$ 22,734
Joint venture preferred equity investment return percentage	8.00%
GFV JV, LLC
Schedule of Equity Method Investments [Line Items]
Joint venture preferred equity investment	$ 8,720
Joint venture preferred equity investment return percentage	8.00%

Equity Method Investment, New Unconsolidated Joint Ventures With Preferred Equity Interest, Number

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Equity Method Investment, Preferred Equity Interest

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Number Of Operating Stores Owned

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Preferred Equity In Joint Venture Annual Rate Of Return

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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