Accrued expenses and other current liabilities

9 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities

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

	As of September 30, 2020		As of December 31, 2019
Employee compensation	$	49,225	$	44,679
Manufacturing costs	22,085		23,126
Clinical and contract research organization costs	26,017		16,799
Collaboration research costs	15,723		27,142
Property, plant, and equipment	608		2,354
License and milestone fees	286		300
Professional fees	1,697		1,827
Other	22,633		25,329
Accrued expenses and other current liabilities	$	138,274	$	141,556