CASH, CASH EQUIVALENTS, AND SHORT-TERM INVESTMENTS (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Jan. 31, 2024
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, cost basis	$ 236,592	$ 260,719	$ 241,400
Cash and cash equivalents, fair value	236,592		241,400
Proceeds from maturities and sales of short-term investments	200	$ 200
Bank time deposits
Cash and Cash Equivalents [Line Items]
Cost Basis	785		686
Gross Unrealized Gains	0		0
Gross Unrealized Losses	0		0
Estimated Fair Value	785		686
Total short-term investments
Cash and Cash Equivalents [Line Items]
Cost Basis	785		686
Gross Unrealized Gains	0		0
Gross Unrealized Losses	0		0
Estimated Fair Value	785		686
Cash and bank time deposits
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, cost basis	184,041		155,504
Cash and cash equivalents, fair value	184,041		155,504
Money market funds
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, cost basis	52,053		85,647
Cash and cash equivalents, fair value	52,053		85,647
U.S. Treasury bills
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, cost basis	498		249
Cash and cash equivalents, fair value	$ 498		$ 249