Fair Value Measurements (Details) - USD ($) $ in Thousands |
Aug. 31, 2020 |
Feb. 29, 2020 |
|---|---|---|
| Money Market Funds | ||
| Cash equivalents: | ||
| Fair value | $ 212,221 | $ 21,332 |
| Money Market Funds | Level 1 | ||
| Cash equivalents: | ||
| Fair value | $ 212,221 | 21,332 |
| Certificates of Deposit | ||
| Cash equivalents: | ||
| Fair value | 5,000 | |
| Certificates of Deposit | Level 1 | ||
| Cash equivalents: | ||
| Fair value | $ 5,000 |