Fair Value Measurements (Details) - USD ($) $ in Thousands	May 31, 2022	Feb. 28, 2022
Marketable Securities [Abstract]
Convertible senior notes	$ 185,265
Money Market Funds
Cash equivalents:
Fair value	98,800	$ 131,527
Money Market Funds \| Level 1
Cash equivalents:
Fair value	98,800	131,527
United States treasury bills
Marketable Securities [Abstract]
Fair value	144,959	99,999
United States treasury bills \| Level 1
Marketable Securities [Abstract]
Fair value	$ 144,959	$ 99,999

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant