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Unconsolidated Joint Venture - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%		50.00%
Title Insurance Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Earnings from the unconsolidated joint venture	$ 10	$ 35	$ 68	$ 49
Collected total distributions from joint venture	$ 56	$ 13	$ 114	$ 23

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Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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