Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Financial Assets Measured on Recurring Basis

The following table sets forth the fair value of the Company’s financial assets and liabilities measured on a recurring basis by level within the fair value hierarchy:

	December 31, 2018
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial Assets
Money market funds	$	105,224	$	—	$	—	$	105,224
Restricted money market funds		300		—		—		300
Total financial assets	$	105,524	$	—	$	—	$	105,524

	December 31, 2017
	Level 1		Level 2		Level 3		Total
	(in thousands)
Financial Assets
Money market funds	$	99,792	$	—	$	—	$	99,792
Restricted money market funds		188		—		—		188
Total financial assets	$	99,980	$	—	$	—	$	99,980