CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

9 Months Ended

Sep. 30, 2021

Cash And Cash Equivalents [Abstract]

Schedule of Cash, Cash Equivalents

The following table provides details regarding the Company’s portfolio of cash and cash equivalents (in thousands):

	Amortized		Unrealized					Aggregate Fair
Cash and Cash Equivalents Classification	Cost		Gains		(Losses)			Market Value
September 30, 2021
Cash accounts in banking institutions	$	222,833	$	—	$	—		$	222,833
Money market accounts		17,339		—		—			17,339
U.S. Government bonds		294,988		—		(3	)		294,985
	$	535,160	$	—	$	(3	)	$	535,157
December 31, 2020
Cash accounts in banking institutions	$	163,779	$	—	$	—		$	163,779
Money market accounts		17,261		—		—			17,261
U.S. Government bonds		448,970		6		(4	)		448,972
	$	630,010	$	6	$	(4	)	$	630,012

Schedule of Short-Term Investments

The following table provides details regarding the Company’s portfolio of short-term investments (in thousands):

	Amortized		Unrealized					Aggregate Fair
Short-term Investments Classification	Cost		Gains		(Losses)			Market Value
September 30, 2021
Certificates of deposit	$	480	$	—	$	—		$	480
Corporate bonds		253,279		43		(16	)		253,306
	$	253,759	$	43	$	(16	)	$	253,786
December 31, 2020
U.S. Government bonds	$	99,929	$	67	$	—		$	99,996
	$	99,929	$	67	$	—		$	99,996