Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2018

Balance Sheet Related Disclosures [Abstract]

Summary of Property and Equipment, Net

Property and equipment, net consists of the following:

	December 31,
	2018			2017
	(in thousands)
Computer hardware and software	$	2,148		$	1,090
Furniture and equipment		1,002			1,029
Leasehold improvements		4,709			2,967
		7,859			5,086
Less: Accumulated depreciation		(2,216	)		(1,073	)
	$	5,643		$	4,013

Summary of Accrued Expenses

Accrued expenses consist of the following:

	December 31,
	2018		2017
	(in thousands)
Development costs	$	21,216	$	23,473
Employee-related expenses		19,638		15,838
Professional services		10,903		3,166
Other accrued expenses		237		124
	$	51,994	$	42,601