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Restructuring and other Exit Charges - (Additional Information) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 02, 2022 USD ($) | Jul. 04, 2021 USD ($) | Jan. 03, 2021 USD ($) | Jan. 02, 2022 USD ($) | Jan. 03, 2021 USD ($) | Mar. 31, 2021 USD ($) Employee | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Expected remaining cost | $ 1,901 |  |  | $ 1,901 |  |  |  |
Restructuring and other exit charges | 2,472 |  | $ 15,196 | 13,161 | $ 19,702 |  |  |
Inventory adjustment relating to exit activities |  |  |  | 960 | 0 |  |  |
Proceeds from disposal of facility |  |  |  | 3,268 | $ 0 |  |  |
Employee Severance |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges | 979 |  |  | 3,318 |  |  |  |
Exit charges | 1,493 |  |  | 9,843 |  |  |  |
Restructuring and other exit charges | 2,472 |  |  | 13,161 |  |  |  |
Restructuring costs incurred |  |  |  | 4,689 |  |  |  |
Employee Severance | Energy Systems |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges | 682 |  |  | 1,701 |  |  |  |
Exit charges | 0 |  |  | (370) |  |  |  |
Restructuring and other exit charges | 682 |  |  | 1,331 |  |  |  |
Employee Severance | Motive Power |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges | 261 |  |  | 1,542 |  |  |  |
Exit charges | 1,418 |  |  | 11,346 |  |  |  |
Restructuring and other exit charges | 1,679 |  |  | 12,888 |  |  |  |
Employee Severance | Specialty |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges | 36 |  |  | 75 |  |  |  |
Exit charges | 75 |  |  | (1,133) |  |  |  |
Restructuring and other exit charges | 111 |  |  | (1,058) |  |  |  |
Closure of Facility in Hagen, Germany |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Expected additional restructuring charges |  |  |  |  |  | $ 60,000 |  |
Estimated number of positions eliminated | Employee |  |  |  |  |  | 200 |  |
Inventory adjustment relating to exit activities |  |  |  | 960 |  |  |  |
Closure of Facility in Hagen, Germany | Cash charges |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Expected additional restructuring charges |  |  |  |  |  | $ 40,000 |  |
Closure of Facility in Hagen, Germany | Severance, Cash Charges |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  | 23,331 |  |
Closure of Facility in Hagen, Germany | Non Cash Charges |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Expected additional restructuring charges |  |  |  |  |  | 20,000 |  |
Closure of Facility in Hagen, Germany | Severance, Non Cash Charges |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges |  |  |  | 3,801 |  | 7,946 |  |
Closure of Facility in Hagen, Germany | Employee Severance |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring charges |  |  |  | 7,915 |  |  |  |
Closure Of Facility In Targovishte Bulgaria |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Expected remaining cost |  |  |  |  |  |  |  | $ 26,000
Restructuring and other exit charges |  |  |  |  |  | 220 | $ 5,123 | $ 20,242
Proceeds from disposal of facility |  |  |  | 1,489 |  |  |  |
Gain on disposal of facility |  |  |  | 1,208 |  |  |  |
Closure of Facility in Zamudio, Spain |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Gain on disposal of facility |  | $ 1,779 |  |  |  |  |  |
Proceeds for sale of certain licenses and assets |  | $ 740 |  |  |  |  |  |
Richmond Kentucky Battery Formation Area Fire |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Prepaid Insurance | $ 18,408 |  |  | 18,408 |  |  |  |
Richmond Kentucky Battery Formation Area Fire | Cleanup |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring and other exit charges |  |  |  | 16,577 |  |  |  |
Richmond Kentucky Battery Formation Area Fire | Business Interruption |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Restructuring costs incurred |  |  |  | $ 7,500 |  |  |  |
Closure Of Facility In Vijayawada India |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Exit charges |  |  |  |  |  | $ 1,509 |  |

X
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