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Geographic and Segment Information - Long-Lived Assets and Concentration Risk (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Total long-lived assets	$ 1,330.0	$ 1,350.9
Sales | Customer Concentration Risk | Arrow Electronics
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	10.00%	12.00%	11.00%
United States
Segment Reporting Information [Line Items]
Total long-lived assets	$ 869.3	$ 826.8
Thailand
Segment Reporting Information [Line Items]
Total long-lived assets	123.7	152.2
Various other countries
Segment Reporting Information [Line Items]
Total long-lived assets	$ 337.0	$ 371.9
Located outside US, in aggregate | Sales | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	75.00%	75.00%	78.00%
Europe | Sales | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	20.00%	24.00%	21.00%
Asia | Sales | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	50.00%	47.00%	53.00%
China | Sales | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	17.00%	18.00%	21.00%
Taiwan | Sales | Geographic Concentration Risk
Segment Reporting Information [Line Items]
Percentage of net sales to unaffiliated customers	16.00%	12.00%	14.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

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