ACCRUED EXPENSES

6 Months Ended

Jun. 30, 2021

Payables And Accruals [Abstract]

ACCRUED EXPENSES

10. ACCRUED EXPENSES

The following table summarizes the Company’s accrued expenses for each of the periods indicated: 

	As of June 30, 2021		As of December 31, 2020
	(in thousands)
Accrued contract manufacturing costs	$	70,453	$	36,543
Product revenue related reserves		49,153		42,618
Accrued milestone and license expense		38,109		9,380
Accrued employee compensation costs		31,222		50,803
Accrued clinical and pre-clinical costs		25,284		22,169
Accrued royalties		9,201		7,793
Accrued professional fees		8,648		10,221
Accrued collaboration cost sharing		1,494		3,516
Accrued property and equipment		1,186		4,993
Accrued interest expense		1,045		1,045
Other		4,346		4,472
Total accrued expenses	$	240,141	$	193,553