Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2019

Balance Sheet Related Disclosures [Abstract]

Summary of Property and Equipment, Net

Property and equipment, net consists of the following:

	December 31,
	2019			2018
	(in thousands)
Computer hardware and software	$	2,830		$	2,148
Furniture and equipment		1,828			1,002
Leasehold improvements		8,967			4,709
		13,625			7,859
Less: Accumulated depreciation		(4,499	)		(2,216	)
	$	9,126		$	5,643

Summary of Accrued Expenses

Accrued expenses consist of the following:

	December 31,
	2019		2018
	(in thousands)
Accrued research and development costs	$	46,940	$	21,216
Employee-related expenses		22,011		19,638
Professional services		16,720		10,903
Other		947		237
	$	86,618	$	51,994