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Unconsolidated Joint Venture - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Schedule of Equity Method Investments [Line Items]
Change in fair value			$ (93)	$ (47)
Distributions from equity method investments carried at fair value			717	0
Title Insurance Joint Venture
Schedule of Equity Method Investments [Line Items]
Change in fair value	$ 18	$ 10	15	68
Distributions from equity method investments carried at fair value		56	108	114
Title Insurance Joint Venture | Other Income
Schedule of Equity Method Investments [Line Items]
Change in fair value	18	$ 10	15	$ 68
Title Insurance Joint Venture | Prepaid and Other Assets, Net
Schedule of Equity Method Investments [Line Items]
Investment in unconsolidated joint venture	$ 32		$ 32		$ 125

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