Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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Percentage of vesting of award under share-based payment arrangement.

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Stock-Based Compensation - Milestone Options Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 30, 2021	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense		$ 27,362	$ 4,595	$ 62,192	$ 9,834
Milestone Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	1,404,605
Vesting percentage	100.00%
Share-based payment arrangement, expense		900		2,100
Cost not yet recognized, amount		$ 17,200		$ 17,200
Cost not yet recognized, period for recognition				4 years 9 months 18 days