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Geographic and Segment Information
 3 Months Ended
Jun. 30, 2025
Segment Reporting [Abstract]  
Geographic and Segment Information Geographic and Segment Information
 
The Company's business is made up of two operating segments, semiconductor products and technology licensing. These segments represent management's view of the business for which separate financial information is available and evaluated regularly by the Chief Operating Decision Maker (CODM), which is the Company’s Chief Executive Officer.

In the semiconductor products segment, the Company designs, develops, manufactures and markets mixed-signal microcontrollers, development tools and analog, interface, mixed-signal, timing, wired and wireless connectivity devices, and memory products. Under the leadership of the CODM, the Company is structured and organized around standardized roles and responsibilities based on product groups and functional activities. The Company's product groups are responsible for product research, design and development. The Company's functional activities include sales, marketing, manufacturing, information technology, human resources, legal and finance. The Company's product groups have similar products, production processes, types of customers and methods for distribution. In addition, the tools and technologies used in the design and manufacture of the Company's products are shared among the various product groups. The Company's product group leaders, under the direction of the CODM, define the product roadmaps and team with sales personnel to achieve design wins and revenue and other performance targets. Product group leaders also interact with manufacturing and
operational personnel who are responsible for the production, prioritization and planning of the Company's manufacturing capabilities to help ensure the efficiency of the Company's operations and fulfillment of customer requirements.

The technology licensing segment includes sales and licensing of the Company's intellectual property.

The CODM uses segment gross profit for evaluating each segment's performance and allocating resources. The Company does not allocate operating expenses, interest income, interest expense, other income or expense, or provision for or benefit from income taxes to these segments for internal reporting purposes, as the Company does not believe that allocating these expenses is beneficial in evaluating segment performance.  Additionally, the Company does not allocate assets to segments for internal reporting purposes as it does not manage its segments by such metrics.

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 June 30, 2025
Semiconductor productsTechnology licensingTotal
Net sales$1,042.5 $33.0 $1,075.5 
Cost of sales498.8 — 498.8 
Gross profit$543.7 $33.0 $576.7 
Three Months Ended June 30, 2024
Semiconductor productsTechnology licensingTotal
Net sales$1,219.1 $22.2 $1,241.3 
Cost of sales504.4 — 504.4 
Gross profit$714.7 $22.2 $736.9