Supplemental Disclosures (Tables)

3 Months Ended

Mar. 31, 2022

Payables And Accruals [Abstract]

Schedules of Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

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

	March 31, 2022		December 31, 2021
Accrued income taxes payable	$	12,672	$	11,325
Accrued external research and development expenses		10,855		11,783
Accrued sublicense fees and royalties		9,057		23,483
Accrued personnel costs		7,852		19,849
Accrued purchases of property and equipment		4,042		5,285
Accrued external general and administrative expenses		3,607		3,642
Other accrued expenses and current liabilities		338		744
	$	48,423	$	76,111