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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

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