CASH, CASH EQUIVALENTS, AND SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Thousands |
3 Months Ended |
|
Apr. 30, 2022 |
Apr. 30, 2021 |
Jan. 31, 2022 |
| Schedule of Available-for-sale Securities |
|
|
|
| Cash and cash equivalents, cost basis |
$ 285,046
|
$ 359,418
|
$ 358,805
|
| Cash and cash equivalents, fair value |
285,046
|
|
358,805
|
| Maturities and sales of investments |
300
|
$ 45,600
|
|
| Bank time deposits |
|
|
|
| Schedule of Available-for-sale Securities |
|
|
|
| Cost Basis |
745
|
|
765
|
| Gross Unrealized Gains |
0
|
|
0
|
| Gross Unrealized Losses |
0
|
|
0
|
| Estimated Fair Value |
745
|
|
765
|
| Total short-term investments |
|
|
|
| Schedule of Available-for-sale Securities |
|
|
|
| Cost Basis |
745
|
|
765
|
| Gross Unrealized Gains |
0
|
|
0
|
| Gross Unrealized Losses |
0
|
|
0
|
| Estimated Fair Value |
745
|
|
765
|
| Cash and bank time deposits |
|
|
|
| Schedule of Available-for-sale Securities |
|
|
|
| Cash and cash equivalents, cost basis |
184,944
|
|
201,769
|
| Cash and cash equivalents, fair value |
184,944
|
|
201,769
|
| Money market funds |
|
|
|
| Schedule of Available-for-sale Securities |
|
|
|
| Cash and cash equivalents, cost basis |
25,135
|
|
127,041
|
| Cash and cash equivalents, fair value |
25,135
|
|
127,041
|
| Commercial paper |
|
|
|
| Schedule of Available-for-sale Securities |
|
|
|
| Cash and cash equivalents, cost basis |
74,967
|
|
29,995
|
| Cash and cash equivalents, fair value |
$ 74,967
|
|
$ 29,995
|