Investments in and Advances to Unconsolidated Affiliates - Schedule of Net Income (Loss) from Unconsolidated Affiliates (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Equity Method Investments And Joint Ventures [Abstract]
Income from unconsolidated affiliates	$ 39,703	$ 14,702
Preopening and start-up expenses	0	(2,282)
Non-operating items from unconsolidated affiliates	(6,921)	(18,212)
Net income (loss) from unconsolidated affiliates	$ 32,782	$ (5,792)