CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)

6 Months Ended

Jul. 31, 2024

CASH, CASH EQUIVALENTS AND INVESTMENTS

Investments

	July 31,		January 31,
	2024		2024
Short-term investments	$	69,292	$	109,489
Available-for-sale securities		182,705		105,884
Total investments	$	251,997	$	215,373

Schedule of available-for-sale securities

	July 31, 2024
			Allowance for		Gross		Gross		Estimated
	Amortized		Credit		Unrealized		Unrealized		Fair
	Cost		Losses		Gains		Losses		Value
U.S. Treasury notes:
Due within one year	$	25,200	$	—	$	3	$	94	$	25,109
Due in one to three years		91,045		—		449		202		91,292
Due in three to five years		55,502		—		755		—		56,257
U.S. corporate debt security:
Due in one to three years		10,046		—		1		—		10,047
Totals	$	181,793	$	—	$	1,208	$	296	$	182,705

	January 31, 2024
			Allowance for		Gross		Gross		Estimated
	Amortized		Credit		Unrealized		Unrealized		Fair
	Cost		Losses		Gains		Losses		Value
U.S. Treasury notes:
Due in one to three years	$	96,217	$	—	$	568	$	230	$	96,555
U.S. corporate debt security:
Due in one to three years		9,406		—		—		77		9,329
Totals	$	105,623	$	—	$	568	$	307	$	105,884