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Geographic and Segment Information (Tables) | 6 Months Ended
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Sep. 30, 2025
Segment Reporting [Abstract] |
Schedule of Net Sales and Gross Profit for Each Segment | The information that is regularly provided to the Company's CODM includes net sales, cost of sales and gross profit for each segment. The following tables include net sales, cost of sales and gross profit for each segment (in millions):
| Three Months Ended September 30, 2025 |  | Six Months Ended September 30, 2025
| Semiconductor products |  | Technology licensing |  | Total |  | Semiconductor products |  | Technology licensing |  | Total
Net sales | $ | 1,108.0 |  |  | $ | 32.4 |  |  | $ | 1,140.4 |  |  | $ | 2,150.5 |  |  | $ | 65.4 |  |  | $ | 2,215.9 |
Cost of sales | 502.5 |  |  | — |  |  | 502.5 |  |  | 1,001.3 |  |  | — |  |  | 1,001.3 |
Gross profit | $ | 605.5 |  |  | $ | 32.4 |  |  | $ | 637.9 |  |  | $ | 1,149.2 |  |  | $ | 65.4 |  |  | $ | 1,214.6 |
| Three Months Ended September 30, 2024 |  | Six Months Ended September 30, 2024
| Semiconductor products |  | Technology licensing |  | Total |  | Semiconductor products |  | Technology licensing |  | Total
Net sales | $ | 1,125.0 |  |  | $ | 38.8 |  |  | $ | 1,163.8 |  |  | $ | 2,344.1 |  |  | $ | 61.0 |  |  | $ | 2,405.1 |
Cost of sales | 495.3 |  |  | — |  |  | 495.3 |  |  | 999.7 |  |  | — |  |  | 999.7 |
Gross profit | $ | 629.7 |  |  | $ | 38.8 |  |  | $ | 668.5 |  |  | $ | 1,344.4 |  |  | $ | 61.0 |  |  | $ | 1,405.4 |

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- 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 + Details
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