Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 273,742	$ 241,853
Less accumulated depreciation and amortization	(41,479)	(38,826)
Property plant and equipment, net	232,263	203,027
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	23,149	22,315
Construction in progress
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	225,941	196,027
Equipment and furniture
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 24,652	$ 23,511