Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 319,556		$ 296,666
Facility lease obligation	248,600		231,700
Depreciation and amortization expense	1,200	$ 900
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 267,113		$ 246,669