OTHER ASSETS

12 Months Ended

Dec. 31, 2019

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 December 31,
	2019		2018
	(in thousands)
Manufacturing-related deposits and prepaids	$	54,276	$	39,036
Prepaid clinical and pre-clinical expenses		8,263		9,706
Prepaid maintenance services		4,366		2,994
Leasehold improvement receivable		3,059		13,474
Prepaid insurance		2,573		1,006
Prepaid income tax		2,114		2,130
Prepaid research expenses		2,007		1,932
Other		5,249		7,504
Total other current assets	$	81,907	$	77,782

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

	As of December 31,
	2019		2018
	(in thousands)
Manufacturing-related deposits and prepaids	$	122,091	$	62,821
Strategic investments		31,937		31,739
Restricted cash and investments		9,566		1,001
Prepaid clinical expenses		4,665		7,541
Alternative minimum tax credit		3,367		3,367
Other		2,233		825
Total other non-current assets	$	173,859	$	107,294