Accrued expenses and other current liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Payables and Accruals [Abstract]

Summary of accrued expenses and other current liabilities

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

	As of December 31,
	2020		2019
Employee compensation	$	55,802	$	44,679
Manufacturing costs	22,571		23,126
Clinical and contract research organization costs	23,766		16,799
Collaboration research costs	20,004		27,142
Property, plant, and equipment	789		2,354
License and milestone fees	278		300
Professional fees	1,541		1,827
Other	20,655		25,329
Total accrued expenses and other current liabilities	$	145,406	$	141,556