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Goodwill and Other Intangible Assets - (Goodwill) (Details) $ in Thousands	9 Months Ended
	Dec. 29, 2024 USD ($)
Goodwill [Roll Forward]
Balance at March 31, 2024	$ 682,934
Acquisitions during the year	51,540
Foreign currency translation adjustment	(18,900)
Balance as of December 29, 2024	715,574
Energy Systems
Goodwill [Roll Forward]
Balance at March 31, 2024	259,369
Acquisitions during the year	0
Foreign currency translation adjustment	(15,783)
Balance as of December 29, 2024	243,586
Motive Power
Goodwill [Roll Forward]
Balance at March 31, 2024	326,359
Acquisitions during the year	0
Foreign currency translation adjustment	(2,677)
Balance as of December 29, 2024	323,682
Specialty
Goodwill [Roll Forward]
Balance at March 31, 2024	97,206
Acquisitions during the year	51,540
Foreign currency translation adjustment	(440)
Balance as of December 29, 2024	$ 148,306

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