Restructuring - Restructuring charges (Details) - USD ($) $ in Thousands |
3 Months Ended | 4 Months Ended | 5 Months Ended | 7 Months Ended | 8 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|---|---|---|
Apr. 30, 2020 |
Jun. 11, 2021 |
Jan. 31, 2021 |
Aug. 27, 2020 |
Jan. 31, 2022 |
Jan. 31, 2022 |
Jan. 31, 2021 |
Jan. 31, 2020 |
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| Restructuring Cost and Reserve [Line Items] | ||||||||
| Restructuring | $ (576) | $ 1,916 | $ 840 | $ 3,575 | $ 1,755 | |||
| Restructuring credit | $ 600 | |||||||
| Financial Designation, Predecessor and Successor [Fixed List] | Predecessor | Predecessor | Predecessor | Predecessor | Successor | Successor | Predecessor | Predecessor |
| X | ||||||||||
- Definition Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an acquisition adjustment. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition 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. No definition available.
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