FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value

Assets and liabilities measured at fair value on a recurring basis included the following (in thousands):

	September 30, 2020								December 31, 2019
	Fair Value		Level 1		Level 2		Level 3		Fair Value		Level 1		Level 2		Level 3
Cash equivalents	$	—	$	—	$	—	$	—	$	148,089	$	148,089	$	—	$	—
Corporate bonds	—		—		—		—		122,648		—		122,648		—
Agency bonds	—		—		—		—		3,968		—		3,968		—
US treasury securities	—		—		—		—		70,089		—		70,089		—
Commercial paper	—		—		—		—		23,828		—		23,828		—
Certificate of deposit	—		—		—		—		3,937		3,937		—		—
Asset-backed securities	—		—		—		—		27,551		—		27,551		—
Foreign currency forward contracts	43		—		43		—		—		—		—		—
Total	$	43	$	—	$	43	$	—	$	400,110	$	152,026	$	248,084	$	—