Restructuring - Restructuring charges (Details) - USD ($) $ in Thousands |
2 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 7 Months Ended | 8 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Jul. 31, 2021 |
Jan. 31, 2022 |
Oct. 31, 2021 |
Apr. 30, 2020 |
Jun. 11, 2021 |
Jan. 31, 2021 |
Aug. 27, 2020 |
Jan. 31, 2022 |
Jan. 31, 2022 |
Jan. 31, 2021 |
Jan. 31, 2020 |
|
| Restructuring | |||||||||||
| Restructuring | $ 316 | $ 2,603 | $ 777 | $ (703) | $ 4,341 | $ 1,179 | $ 3,696 | $ 1,900 | |||
| Restructuring credit | $ 700 | ||||||||||
| 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.
|
| 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
|
| X | ||||||||||
- References No definition available.
|
| 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
|