Restructuring, Exit and Other Charges - Acquisition and Non-Acquisition Related Restructuring Reserve (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring and other exit charges	$ 14,428	$ 28,103	$ 16,439
Restructuring Reserve [Roll Forward]
Beginning balance	2,408	445	1,030
Accrued	6,974	8,006	1,687
Costs incurred	(8,292)	6,064	2,224
Foreign currency impact and other	(11)	21	(48)
Ending balance	$ 1,079	$ 2,408	$ 445
Accrued Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag	Accrued	Accrued	Accrued
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 6,974	$ 8,006	$ 1,687
Exit charges	7,454	20,097	14,752
Restructuring and other exit charges	14,428	28,103	16,439
Employee Severance | Energy Systems
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5,001	4,526	1,318
Exit charges	993	4,312	123
Restructuring and other exit charges	5,994	8,838	1,441
Employee Severance | Motive Power
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,575	3,445	327
Exit charges	4,144	8,253	12,537
Restructuring and other exit charges	5,719	11,698	12,864
Employee Severance | Specialty
Restructuring Cost and Reserve [Line Items]
Restructuring charges	398	35	42
Exit charges	2,317	7,532	2,092
Restructuring and other exit charges	$ 2,715	$ 7,567	$ 2,134