OTHER ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Summary of Other Current Assets

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

	As of December 31,
	2023		2022
	(in thousands)
Manufacturing-related deposits and prepaids	$	102,181	$	66,455
Collaboration and other receivables		29,786		41,758
Prepaid maintenance services		11,281		9,815
Prepaid clinical and pre-clinical expenses		10,280		11,237
Tax-related receivables and prepaids		6,862		1,903
Prepaid insurance		3,352		3,717
Interest receivable		2,731		3,311
Prepaid commercial expenses		2,729		2,947
Prepaid research expenses		2,512		1,927
Other		8,181		6,821
Total other current assets	$	179,895	$	149,891

Summary of Other Non-current Assets

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

	As of December 31,
	2023		2022
	(in thousands)
Manufacturing-related deposits and prepaids	$	74,204	$	97,409
Intangible assets, net		29,620		7,578
Restricted cash*		15,579		19,024
Strategic investments		6,527		31,321
Prepaid maintenance services		5,466		3,403
Prepaid clinical expenses		2,133		2,150
Other		3,242		2,084
Total other non-current assets	$	136,771	$	162,969

* The Company had approximately $15.6 million and $19.0 million in restricted cash included in other non-current assets on the Company's consolidated balance sheets as of December 31, 2023 and 2022, respectively. Restricted cash for both years relates to (i) letters of credit established under the Company's various property leases that serve as security for potential future default of lease payments, (ii) a letter of credit established under a certain commercial supply agreement and (iii) collateralized cash for the Company's credit cards. The restricted cash is unavailable for withdrawal or use for general obligations.