Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property Plant And Equipment [Abstract]

Property and Equipment

Property and equipment consists of the following:

	Estimated Useful Life	December 31, 2015			December 31, 2014
			(in thousands)
Laboratory equipment	5 years	$	—		$	7,671
Computer equipment and software	3 years		187			3,913
Office furniture	5 years		—			893
Leasehold improvements	Shorter of asset’s useful life or remaining term of lease		—			14,433
			187			26,910
Less accumulated depreciation and amortization			(164	)		(15,615	)
Property and equipment, net		$	23		$	11,295