FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures Abstract

Fair value of marketable securities and investments

The fair-value hierarchy of the Company’s cash equivalents and marketable securities at June 30, 2022 and December 31, 2021, was as follows:

	Fair Value Measurement at
	June 30, 2022
			Quoted Prices in
			Active Markets for		Significant Other
			Identical Assets		Observable Inputs
(In thousands)	Total Fair Value		(Level 1)		(Level 2)
Commercial paper	$	8,795	$	—	$	8,795
Corporate securities		260,209		—		260,209
Money market funds		4,040		4,040		—
Total	$	273,044	$	4,040	$	269,004

	Fair Value Measurement at
	December 31, 2021
			Quoted Prices in
			Active Markets for		Significant Other
			Identical Assets		Observable Inputs
(In thousands)	Total Fair Value		(Level 1)		(Level 2)
Commercial paper	$	172,237	$	—	$	172,237
Corporate securities		282,540		—		282,540
Money market funds		29,793		29,793		—
Total	$	484,570	$	29,793	$	454,777