Summary of Significant Accounting Policies - Cash, Cash Equivalents and Restricted Stock (Details) $ in Thousands |
12 Months Ended | ||||
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Jan. 31, 2022
USD ($)
item
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Jun. 11, 2021
USD ($)
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Jan. 31, 2021
USD ($)
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Aug. 27, 2020
USD ($)
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Jan. 31, 2020
USD ($)
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| Summary of Significant Accounting Policies | |||||
| Cash and cash equivalents | $ 154,672 | $ 117,299 | $ 71,479 | $ 92,009 | $ 18,799 |
| Restricted cash | $ 14,251 | $ 2,964 | $ 10,306 | ||
| Number of accounts considered as restricted | item | 3 | ||||
| Interest rate period of interest reserve account | 3 months | ||||
| Facility balance floor | $ 10,000 |
| X | ||||||||||
- Definition The amount of facility balance floor under interest reserve account. No definition available.
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| X | ||||||||||
- Definition Interest rate period under interest reserve account. No definition available.
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| X | ||||||||||
- Definition Number of accounts considered restricted by the company. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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