Investments in Unconsolidated Entities - Aggregated Assets, Liabilities and Operating Results of Entities as Equity-Method Investments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Assets
Total assets	$ 133,393	$ 118,686
Liabilities and equity
Accounts payable and other liabilities	11,009	11,631
Company’s equity	11,745	5,410
Outside interests’ equity	110,639	101,645
Total liabilities and equity	133,393	118,686
Net sales	30,691	28,745	$ 24,247
Other operating expense	(16,981)	(17,447)	(13,904)
Other income	175	97	120
Net income	13,885	11,395	10,463
Company’s equity in income (loss) of unconsolidated entities	9,264	8,124	$ (5,007)
Cash
Assets
Total assets	8,537	13,337
Receivables
Assets
Total assets	7,393	4,674
Real estate inventories
Assets
Total assets	116,760	99,864
Other assets
Assets
Total assets	$ 703	$ 811