Condensed Combined Balance Sheets of Limited Liabilities Accounted for under Equity Method (Detail) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Equity Method Investments And Joint Ventures [Abstract]
Net property, including CIP		$ 60,970	$ 61,668
Other assets		4,598	5,264
Total assets		65,568	66,932
Other liabilities		3,334	2,538
Mortgage notes payable, non-recourse to us		28,367	28,895
Advances payable to us	[1]	21,638	22,489
Equity		12,229	13,010
Total liabilities and equity		65,568	66,932
Our share of equity in and advances to LLCs reflected as:
Investments in LLCs		13,955	9,108
Advances to LLCs		21,638	22,489
Investments in and advances to LLCs before amounts included in accrued expenses and other liabilities		35,593	31,597
Amounts included in accrued expenses and other liabilities		(1,862)	(1,105)
Our share of equity in and advances to LLCs, net		$ 33,731	$ 30,492

[1] Consists of a 5.29% member loan which is scheduled to mature in January, 2018.