Property and Equipment, Net (Tables)

3 Months Ended

Mar. 31, 2019

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment, net consists of the following:

	As of
	March 31, 2019			December 31, 2018
	(in thousands)
Laboratory equipment	$	10,051		$	9,309
Manufacturing equipment		1,113			—
Computers and purchased software		487			248
Furniture and fixtures		1,236			1,066
Leasehold improvements		29,160			24,520
Assets not yet in service		2,311			2,602
		44,358			37,745
Less: accumulated depreciation and amortization		(3,374	)		(2,108	)
Total property and equipment, net	$	40,984		$	35,637