Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net as of December 31, 2015 and 2014 consisted of the following:

	December 31,
(in thousands)	2015			2014
Lab equipment	$	19,305		$	16,214
IT equipment		7,742			3,113
Leasehold improvements		21,026			18,219
Furniture and fixtures		910			624
Construction in process		2,243			472
Total property and equipment, gross		51,226			38,642
Less: Accumulated depreciation		(29,311	)		(24,140	)
Total property and equipment, net	$	21,915		$	14,502