OTHER ASSETS

3 Months Ended

Mar. 31, 2021

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

OTHER ASSETS

9. OTHER ASSETS

The following table summarizes the Company’s other current assets for each of the periods indicated:

	As of March 31, 2021		As of December 31, 2020
	(in thousands)
Manufacturing-related deposits and prepaids	$	114,659	$	134,430
Prepaid clinical and pre-clinical expenses		17,539		16,224
Collaboration receivable		15,105		34,184
Prepaid maintenance services		8,063		6,411
Prepaid research expenses		4,620		5,854
Prepaid income tax		3,930		4,939
Leasehold improvement receivable		3,059		3,059
Prepaid insurance		2,637		4,158
Other		5,369		4,065
Total other current assets	$	174,981	$	213,324

The following table summarizes the Company’s other non-current assets for each of the periods indicated:

	As of March 31, 2021		As of December 31, 2020
	(in thousands)
Manufacturing-related deposits and prepaids	$	156,413	$	148,525
Strategic investments		40,640		38,799
Restricted cash and investments		9,315		9,315
Prepaid clinical expenses		2,124		3,395
Other		3,092		3,669
Total other non-current assets	$	211,584	$	203,703