Property and Equipment, Net

12 Months Ended

Dec. 31, 2016

Property Plant And Equipment [Abstract]

Property and Equipment, Net

5. Property and Equipment, Net

Property and equipment, net consisted of the following:

	December 31, 2016			December 31, 2015
Laboratory equipment	$	10,711		$	4,370
Computer equipment		1,335			408
Furniture and office equipment		1,010			285
Leasehold improvements		27,807			1,856
Construction in progress		442			1,843
		41,305			8,762
Less: Accumulated depreciation and amortization		(5,180	)		(1,011	)
	$	36,125		$	7,751

Depreciation and amortization expense was $4,205, $728 and $190 for the years ended December 31, 2016, 2015 and 2014, respectively.