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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Mar. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule Of Company's Other Intangible Assets
Information regarding the Company’s other intangible assets are as follows:
 March 31,
 20252024
 Gross
Amount 		Accumulated
Amortization		Net
Amount		Gross
Amount		Accumulated
Amortization		Net
Amount
Indefinite-lived intangible assets:
Trademarks$129,210 $(953)$128,257 $131,167 $(953)$130,214 
Finite-lived intangible assets:
Customer relationships356,800 (168,932)187,868 295,215 (147,833)147,382 
Non-compete2,825 (2,825)— 2,825 (2,825)— 
Technology119,645 (65,160)54,485 96,708 (55,969)40,739 
Trademarks14,815 (9,995)4,820 9,554 (8,482)1,072 
Licenses1,196 (1,196)— 1,196 (1,196)— 
Total$624,491 $(249,061)$375,430 $536,665 $(217,258)$319,407 
Schedule Of Changes In The Carrying Amount Of Goodwill By Business Segment
The following table presents the changes in the carrying amount of goodwill by segment during fiscal 2024 and 2025:

 Energy SystemsMotive PowerSpecialtyTotal
Balance at March 31, 2023$258,204 $321,530 $96,981 $676,715 
Acquisitions— 4,390 — 4,390 
Foreign currency translation adjustment807 798 224 1,829 
Balance at March 31, 2024$259,011 $326,718 $97,205 $682,934 
Acquisitions— — 50,821 50,821 
Foreign currency translation adjustment(13,264)328 254 (12,682)
Balance at March 31, 2025$245,747 $327,046 $148,280 $721,073