Property and Equipment, Net

6 Months Ended

Jun. 30, 2018

Property Plant And Equipment [Abstract]

Property and Equipment, Net

5. Property and Equipment, Net

Property and equipment, net consisted of the following:

	June 30, 2018			December 31, 2017
Laboratory equipment	$	13,988			13,181
Computer equipment		2,852			2,832
Furniture and office equipment		1,033			1,033
Leasehold improvements		27,977			27,963
Construction in progress		388			361
		46,238			45,370
Less: Accumulated depreciation and amortization	$	(16,334	)	$	(12,439	)
	$	29,904		$	32,931

Depreciation and amortization expense was $1,954, $ 3,895, $1,760 and $3,490 for the three and six months ended June 30, 2018  and 2017, respectively.