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Unconsolidated Joint Venture - Additional Information (Detail) - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]
(Loss) on equity method investments carried at fair value	$ (560)	$ (560)	$ 0
Distribution from equity method investment	1,525
Title Insurance Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
(Loss) on equity method investments carried at fair value		222	137
Distribution from equity method investment		172	89
Title Insurance Joint Venture [Member] | Prepaid and Other Assets, Net [Member]
Schedule Of Equity Method Investments [Line Items]
Investment in unconsolidated joint venture	$ 125	$ 125	$ 72

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