Investments - Equity Investments Realized and Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 31, 2022 |
Oct. 31, 2021 |
Oct. 31, 2022 |
Oct. 31, 2021 |
|
| Investments, Debt and Equity Securities [Abstract] | ||||
| Net realized gains (losses) recognized on equity investments sold | $ 4,514 | $ 11,759 | $ (365) | $ 4,236 |
| Net unrealized gains (losses) recognized on equity investments held as of the end of the period | (155) | 13,448 | (19,121) | 121,167 |
| Total net gains (losses) recognized in Other income (expense), net | $ 4,359 | $ 25,207 | $ (19,486) | $ 125,403 |