Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2019

Payables And Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consist of the following (in thousands):

	As of  December 31,
	2019		2018
Payroll and employee-related costs	$	15,229	$	7,321
Research costs		9,434		7,973
Licensing fees		750		625
Professional fees		2,040		1,848
Intellectual property costs		2,311		2,193
Accrued property and equipment		407		294
Other		9		598
Total	$	30,180	$	20,852