Short-Term Investments (Tables)

6 Months Ended

Jul. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Short-Term Investments

Short-term investments consisted of the following:

	July 31, 2022
	(in thousands)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. Treasury Securities	$	282,577	$	—	$	(1,303)	$	283,880
	$	282,577	$	—	$	(1,303)	$	283,880