Transactions with Affiliates - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Related Party Transactions [Abstract]
Professional services and general and administrative expenses to affiliates	$ 30,118	$ 29,705
Professional services and general and administrative expenses to affiliates, unpaid amount	10,887		$ 16,190
Payment to affiliates to develop real estate assets	0	1,289
Land operating expenses to affiliates	1,154	$ 411
Land operating expenses to affiliates unpaid amount	$ 1,280		$ 1,200