401(k) Plan (Details) - USD ($) |
12 Months Ended | ||
---|---|---|---|
Jan. 31, 2023 |
Jan. 31, 2022 |
Jan. 31, 2021 |
|
Defined Contribution Plan Disclosure [Line Items] | |||
Total expense related defined benefit plan | $ 8,000,000 | $ 7,000,000 | $ 6,000,000 |
401(k) plan | |||
Defined Contribution Plan Disclosure [Line Items] | |||
Employer maximum matching contribution amount per employee per year | 2,000 | ||
RRSP | CANADA | |||
Defined Contribution Plan Disclosure [Line Items] | |||
Employer maximum matching contribution amount per employee per year | $ 2,000 |