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Business Segments (Tables)

6 Months Ended

Sep. 28, 2025

Segment Reporting [Abstract]

Selected Financial Data for Reportable Business Segments and Product Lines

Summarized financial information related to the Company’s reportable segments at September 28, 2025 and September 29, 2024.

			Quarter ended
			September 28, 2025
			Energy Systems						Motive Power						Specialty						Total
Net Sales by segment to unaffiliated customers (1)			$	434,642					$	359,741					$	156,872					$	951,255
Net sales from corporate and other																					31
Total Net Sales																					$	951,286
Less:
Other segment items(4)			$	401,065					$	311,786					$	142,364					$	855,246
Segment income			$	33,577					$	47,955					$	14,508					$	96,040
Less:
Restructuring and other exit charges			9,262						9,331						2,365						20,958
Amortization of intangible assets			5,836						122						2,401						8,359
Other			4,051						2,221						1,760						8,032
Total operating earnings by segment			$	14,428					$	36,281					$	7,982					$	58,691
Corporate and other(3)																					$	33,341
Operating earnings(2)																					$	92,032

(1)Reportable segments do not record inter-segment revenues and accordingly there are none to report.

(2)The Company does not allocate interest expense or other (income) expense, net, to the reportable segments.

(3)     Corporate and other includes amounts managed on a company-wide basis and not directly allocated to any reportable segments, primarily relating to IRC 45X production tax credits. Also, included are start-up costs for exploration of a new lithium plant as well as start-up operating expenses from the New Ventures operating segment.

(4) Primarily includes cost of sales and operating expenses

			Quarter ended
			September 28, 2024
			Energy Systems						Motive Power						Specialty						Total
Net Sales by segment to unaffiliated customers (1)			$	382,091					$	366,744					$	134,834					$	883,669
Net sales from corporate and other
Total Net Sales																					$	883,669
Less:
Other segment items(4)			$	357,730					$	309,154					$	127,496					$	794,380
Segment income			$	24,361					$	57,590					$	7,338					$	89,289
Less:
Inventory restructuring and acquisitions			—						—						1,883						1,883
Restructuring and other exit charges			747						1,088						389						2,224
Amortization of intangible assets			6,013						187						1,952						8,152
Other			60						3						2,861						2,924
Total operating earnings by segment			$	17,541					$	56,312					$	253					$	74,106
Corporate and other(3)																					$	25,281
Operating earnings(2)																					$	99,387

(1)Reportable segments do not record inter-segment revenues and accordingly there are none to report.

(2)The Company does not allocate interest expense or other (income) expense, net, to the reportable segments.

(3)     Corporate and other includes amounts managed on a company-wide basis and not directly allocated to any reportable segments, primarily relating to IRC 45X production tax credits. Also, included are start-up costs for exploration of a new lithium plant as well as start-up operating expenses from the New Ventures operating segment.

(4) Primarily includes cost of sales and operating expenses

			Six months ended
			September 28, 2025
			Energy Systems						Motive Power						Specialty						Total
Net Sales by segment to unaffiliated customers (1)			$	826,013					$	708,819					$	305,383					$	1,840,215
Net sales from corporate and other																					4,095
Total Net Sales																					$	1,844,310
Less:
Other segment items(4)			$	765,097					$	614,196					$	281,235					$	1,664,623
Segment income			$	60,916					$	94,623					$	24,148					$	179,687
Less:
Restructuring and other exit charges			10,316						14,138						2,366						26,820
Amortization of intangible assets			11,679						243						4,794						16,716
Accelerated stock compensation expense			5,374						3,367						1,457						10,198
Other			5,237						2,828						3,305						11,370
Total operating earnings by segment			$	28,310					$	74,047					$	12,226					$	114,583
Corporate and other(3)																					$	63,929
Operating earnings(2)																					$	178,512

(1)Reportable segments do not record inter-segment revenues and accordingly there are none to report.

(2)The Company does not allocate interest expense or other (income) expense, net, to the reportable segments.

(3)     Corporate and other includes amounts managed on a company-wide basis and not directly allocated to any reportable segments, primarily relating to IRC 45X production tax credits. Also, included are start-up costs for exploration of a new lithium plant as well as start-up operating expenses from the New Ventures operating segment.

(4) Primarily includes cost of sales and operating expenses

			Six months ended
			September 28, 2024
			Energy Systems						Motive Power						Specialty						Total
Net Sales by segment to unaffiliated customers (1)			$	743,142					$	732,899					$	260,544					$	1,736,585
Net sales from corporate and other																					—
Total Net Sales																					$	1,736,585
Less:
Other segment items(4)			$	699,781					$	619,343					$	248,306					$	1,567,430
Segment income			$	43,361					$	113,556					$	12,238					$	169,155
Less:
Inventory restructuring and acquisitions			—						—						1,883						1,883
Restructuring and other exit charges			4,524						2,483						1,155						8,162
Amortization of intangible assets			12,014						370						2,654						15,038
Other			236						11						4,213						4,460
Total operating earnings by segment			$	26,587					$	110,692					$	2,333					$	139,612
Corporate and other(3)																					$	51,106
Operating earnings(2)																					$	190,718

(1)Reportable segments do not record inter-segment revenues and accordingly there are none to report.

(2)The Company does not allocate interest expense or other (income) expense, net, to the reportable segments.

(3)     Corporate and other includes amounts managed on a company-wide basis and not directly allocated to any reportable segments, primarily relating to IRC 45X production tax credits. Also, included are start-up costs for exploration of a new lithium plant as well as start-up operating expenses from the New Ventures operating segment.

(4) Primarily includes cost of sales and operating expenses

						Six months ended						Six months ended
						September 28, 2025						September 29, 2024
Capital Expenditures
Energy Systems						$	21,737					$	18,587
Motive Power						13,181						10,770
Specialty						17,175						27,775
Other						1,829						9,354
Total						$	53,922					$	66,486
Depreciation and Amortization
Energy Systems						$	26,583					$	25,147
Motive Power						13,203						11,693
Specialty						15,050						11,904
Other						53						13
Total						$	54,889					$	48,757

The Company's property, plant and equipment by reportable segments as of September 28, 2025 and September 29, 2024 are as follows:

						September 28, 2025						March 31, 2025
Property, plant and equipment, net
Energy Systems						$	203,863					$	198,841
Motive Power						132,211						144,076
Specialty						257,104						236,861
Other						14,423						12,655
Total						$	607,601					$	592,433

X

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-22

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-30

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- References

No definition available.

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