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Investment in Unconsolidated Joint Ventures - Additional Information (Detail) - USD ($) $ in Thousands		12 Months Ended
	Jun. 15, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Aug. 08, 2017
Schedule of Equity Method Investments [Line Items]
Ownership interest (in percentage)					49.00%
Investments in unconsolidated joint ventures		$ 57,755	$ 53,080
Term loan issued	$ 13,800
Equity in income from unconsolidated joint ventures		4,939	3,765	$ 2,605
Adjustment depreciation		1,800	1,500	1,300
Distributions in excess of basis		4,500	3,800	5,900
Distributions, including those in excess of basis		$ 200	800
Arizona \| Voyager Investments
Schedule of Equity Method Investments [Line Items]
Ownership interest (in percentage)		50.00%
Investments in unconsolidated joint ventures		$ 3,135	3,205
Equity in income from unconsolidated joint ventures		995	891	$ 1,014
Loggerhead
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures		4,400	30,000
Lakeshore Investments
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures		$ 100
Crosswinds
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures			$ 18,800