Property and Equipment, net - Components of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Line Items]
Total property and equipment	$ 124,365	$ 57,210
Less accumulated depreciation and amortization	(14,641)	(8,014)
Property and equipment, net	109,724	49,196
Computer software and equipment
Property Plant And Equipment [Line Items]
Total property and equipment	13,498	4,845
Furniture, fixtures and equipment
Property Plant And Equipment [Line Items]
Total property and equipment	8,477	4,535
Vehicles
Property Plant And Equipment [Line Items]
Total property and equipment	1,153	834
Equipment under capital lease
Property Plant And Equipment [Line Items]
Total property and equipment	1,498	1,777
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment	15,671	3,538
Construction in progress
Property Plant And Equipment [Line Items]
Total property and equipment	17,424	19,410
Building
Property Plant And Equipment [Line Items]
Total property and equipment	53,264	19,733
Land
Property Plant And Equipment [Line Items]
Total property and equipment	$ 13,380	$ 2,538