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Restructuring Plans - (Additional Information) (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 30, 2018 USD ($) | Sep. 30, 2018 USD ($) Employee | Dec. 31, 2017 USD ($) | Dec. 30, 2018 USD ($) Employee | Dec. 31, 2017 USD ($) | Mar. 31, 2018 USD ($) Employee | Mar. 31, 2017 USD ($) Employee
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  | $ 4,498 | $ 210 |  |
Restructuring and other exit (credits) | $ 5,392 |  | $ 1,808 | 8,252 | $ 4,417 |  |
Restructuring costs incurred |  |  |  | 4,473 |  |  |
Restructuring reserve | 2,433 |  |  | 2,433 |  | $ 2,909 |
Restructuring Related To Sale Of Geräte- und Akkumulatorenwerk Zwickau GmbH |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Restructuring and other exit (credits) | 3,521 |  |  |  |  |  |
EMEA | Restructurings Related to Improving Efficiency Related to Motive Power Assembly and Distribution Center |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  |  |  |  | $ 4,700
Expected reduction in number of employees | Employee |  |  |  |  |  |  | 45
Restructuring and other exit (credits) |  |  |  |  |  | 1,610 | $ 3,104
Restructuring costs incurred |  |  |  | 1,414 |  | 2,403 | $ 749
Restructuring reserve | 270 |  |  | 270 |  |  |
EMEA | Restructurings Related to Improving Efficiency Related to Supply Chain and General Operations |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  |  |  | $ 7,700 |
Expected reduction in number of employees | Employee |  |  |  |  |  | 75 |
Restructuring and other exit (credits) |  |  |  | 2,971 |  |  |
Restructuring costs incurred |  |  |  | 1,730 |  | $ 1,350 |
Restructuring reserve | 2,072 |  |  | 2,072 |  |  |
Expected additional restructuring charges | 2,300 |  |  | 2,300 |  |  |
EMEA | Restructurings Related to Improving Efficiency Related to Supply Chain and General Operations | Non-cash charges |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Restructuring and other exit (credits) |  |  |  |  |  | 69 |
EMEA | Restructurings Related to Improving Efficiency Related to Supply Chain and General Operations | Cash charges |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Restructuring and other exit (credits) |  |  |  |  |  | 2,260 |
EMEA | Restructurings Related to Improving Efficiencies of Reserve Power Operations in EMEA |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  | $ 150 |  |  |
Expected reduction in number of employees | Employee |  |  |  | 2 |  |  |
Restructuring and other exit (credits) |  |  |  | $ 121 |  |  |
Restructuring costs incurred |  |  |  | 34 |  |  |
Restructuring reserve | 87 |  |  | 87 |  |  |
Americas | Restructurings Related to Improving Efficiencies of General Operations in the Americas, 2018 Plan |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  | $ 960 |  |  |  |  |
Expected reduction in number of employees | Employee |  | 60 |  |  |  |  |
Restructuring and other exit (credits) |  |  |  |  |  | 960 |
Restructuring costs incurred |  |  |  | 207 |  | $ 755 |
Americas | Restructurings Related to Improving Efficiencies of Operations in the Americas, 2019 Plan |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  | $ 630 |  |  |
Expected reduction in number of employees | Employee |  |  |  | 15 |  |  |
Restructuring and other exit (credits) |  |  |  | $ 626 |  |  |
Restructuring costs incurred |  |  |  | 626 |  |  |
Restructuring reserve | 0 |  |  | 0 |  |  |
Asia | Restructuring Program to Improve Efficiencies of Operations in Asia and Conversion of India Operations |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  | $ 3,600 |  |  |
Expected reduction in number of employees | Employee |  |  |  | 150 |  |  |
Restructuring and other exit (credits) |  |  |  | $ 466 |  |  |
Restructuring costs incurred |  |  |  | 462 |  |  |
Restructuring reserve | $ 4 |  |  | 4 |  |  |
Asia | Restructuring Related to Improving Profitability in India |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Write-off of assets relating to exit activities |  |  |  | 547 |  |  |
Restructuring and other exit (credits) |  |  |  | 114 |  |  |
Cost of Sales | Asia | Restructuring Related to Improving Profitability in India | Non-cash charges |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |
Restructuring and other exit (credits) |  |  |  | $ 526 |  |  |

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