Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property and Equipment, Net

Property and Equipment, Net

Property and equipment, net consists of the following (in thousands):

	As of December 31,
	2019		2018
Lab equipment	$	21,846	$	14,352
Leasehold improvements	34,563		22,288
Computers equipment and purchased software	1,156		458
Furniture and fixtures	1,440		74
Total property and equipment	59,005		37,172
Less: accumulated depreciation	(12,273)		(12,010)
Total property and equipment, net	$	46,732	$	25,162

Schedule of Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consists of the following (in thousands):

	As of December 31,
	2019		2018
Accrued compensation	$	8,739	$	9,952
Accrued clinical costs	5,042		2,091
Accrued manufacturing and other research & development costs	5,251		4,179
Accrued general, administrative and shared costs	1,310		2,250
Deferred rent, current	—		616
Operating lease liability, current	3,665		—
Other current liabilities	8		380
Total accrued expenses and other current liabilities	$	24,015	$	19,468