Stock-based compensation - Assumptions for grant date fair value of the stock options (Details) - $ / shares |
1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 6 Months Ended | 12 Months Ended | ||||||
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Jun. 12, 2021 |
Jun. 11, 2021 |
Jul. 31, 2021 |
Jul. 31, 2021 |
Apr. 30, 2021 |
Jul. 31, 2020 |
Apr. 30, 2020 |
Jun. 11, 2021 |
Jul. 31, 2021 |
Jul. 31, 2020 |
Jan. 31, 2021 |
Jan. 31, 2020 |
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Assumptions for grant date fair value of the stock options | ||||||||||||
Financial Designation, Predecessor and Successor [Fixed List] | Successor | Predecessor | Successor | Successor | Predecessor | Predecessor | Predecessor | Predecessor | Successor | Predecessor | Predecessor | Predecessor |
Stock Options | ||||||||||||
Assumptions for grant date fair value of the stock options | ||||||||||||
Risk-free interest rates | 0.98% | |||||||||||
Volatility factor | 30.00% | |||||||||||
Expected lives (years) | 6 years 1 month 6 days | |||||||||||
Weighted average fair value of options granted | $ 3.34 |
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- Definition Indicates designation of financial information when substantially all business or separately identifiable line of business transfers from one entity to another entity. Acceptable values are "Predecessor" and "Successor". Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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