Business Segments - (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2023	Jan. 01, 2023
Segment Reporting Information [Line Items]
Net sales	$ 861,548	$ 920,227	$ 2,671,150	$ 2,718,635
Operating earnings by segment	92,597	78,530	270,656	182,928
Inventory adjustment relating to exit activities - Specialty	(16,067)	863	(19,165)	(681)
Restructuring and other exit charges	(6,070)	(801)	(19,613)	(12,394)
Amortization			(68,304)	(68,998)
Americas | Inventory Adjustment
Segment Reporting Information [Line Items]
Restructuring and other exit charges	(6,020)	0	(6,020)	0
Energy Systems | Americas
Segment Reporting Information [Line Items]
Net sales	373,573	434,310	1,220,587	1,279,913
Operating earnings by segment	14,309	27,654	69,521	60,435
Restructuring and other exit charges	(2,358)	(158)	(5,073)	(1,097)
Other	(2,449)	(90)	(3,508)	(251)
Amortization	(6,047)	(6,941)	(18,483)	(21,348)
Energy Systems | EMEA
Segment Reporting Information [Line Items]
Inventory adjustment relating to exit activities - Specialty	(16,067)	211	(16,067)	211
Motive Power | EMEA
Segment Reporting Information [Line Items]
Net sales	355,396	361,788	1,061,383	1,067,632
Operating earnings by segment	52,715	47,214	156,531	129,501
Inventory adjustment relating to exit activities - Specialty	0	652	0	(892)
Restructuring and other exit charges	(2,909)	(650)	(7,947)	(11,304)
Other	(122)	(135)	(712)	(235)
Amortization	(170)	(110)	(512)	(330)
Specialty | Asia
Segment Reporting Information [Line Items]
Net sales	132,579	124,129	389,180	371,090
Operating earnings by segment	7,496	11,609	22,900	30,431
Inventory adjustment relating to exit activities - Specialty	0	0	(3,098)	0
Restructuring and other exit charges	(803)	7	(6,593)	7
Other	(34)	0	(232)	0
Amortization	(702)	(733)	(2,106)	(2,200)
Corporate and other
Segment Reporting Information [Line Items]
Operating earnings by segment	$ 55,758	$ 0	$ 92,055	$ 0