Property and Equipment, Net - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property Plant And Equipment [Line Items]
Accumulated computer software amortization	$ 2,803
Computer software amortization	250
Property and Equipment
Property Plant And Equipment [Line Items]
Depreciation expense	$ 1,348	$ 886	$ 520