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Unconsolidated Joint Venture - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%
Earnings from the unconsolidated joint venture	$ (606)	$ 0	$ (606)	$ 0
Collected total distributions from joint venture	100
Title Insurance Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Earnings from the unconsolidated joint venture	48	30	115	79
Collected total distributions from joint venture	$ 10	$ 36	$ 124	$ 59

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