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Geographic and Segment Information | 12 Months Ended
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Mar. 31, 2019
Segment Reporting [Abstract] |
Geographic and Segment Information | Geographic and Segment Information The Company's reportable segments are semiconductor products and technology licensing. 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 following table represents net sales and gross profit for each segment (in millions):
| Years ended March 31,
| 2019 |  | 2018 |  | 2017
| Net Sales |  | Gross Profit |  | Net Sales |  | Gross Profit |  | Net Sales |  | Gross Profit
Semiconductor products | $ | 5,217.1 |  |  | $ | 2,798.9 |  |  | $ | 3,876.0 |  |  | $ | 2,315.9 |  |  | $ | 3,316.6 |  |  | $ | 1,666.0 |
Technology licensing | 132.4 |  |  | 132.4 |  |  | 104.8 |  |  | 104.8 |  |  | 91.2 |  |  | 91.2 |
Total | $ | 5,349.5 |  |  | $ | 2,931.3 |  |  | $ | 3,980.8 |  |  | $ | 2,420.7 |  |  | $ | 3,407.8 |  |  | $ | 1,757.2 |
The Company sells its products to distributors and original equipment manufacturers (OEMs) in a broad range of market segments, performs on-going credit evaluations of its customers and, as deemed necessary, may require collateral, primarily letters of credit. The Company's operations outside the U.S. consist of product assembly and final test facilities in Thailand, and sales and support centers and design centers in certain foreign countries. Domestic operations are responsible for the design, development and wafer fabrication of products, as well as the coordination of production planning and shipping to meet worldwide customer commitments. The Company's Thailand assembly and test facility is reimbursed in relation to value added with respect to assembly and test operations and other functions performed, and certain foreign sales offices receive compensation for sales within their territory. Accordingly, for financial statement purposes, it is not meaningful to segregate sales or operating profits for the assembly and test and foreign sales office operations. Identifiable long-lived assets (consisting of property, plant and equipment net of accumulated amortization) by geographic area are as follows (in millions):
| March 31,
| 2019 |  | 2018
United States | $ | 521.1 |  |  | $ | 393.3 |
Thailand | 209.3 |  |  | 215.5 |
Various other countries | 266.3 |  |  | 159.1 |
Total long-lived assets | $ | 996.7 |  |  | $ | 767.9 |
Sales to unaffiliated customers located outside the U.S., primarily in Asia and Europe, aggregated approximately 80% of consolidated net sales for fiscal 2019 and approximately 85% and 84% of net sales during fiscal 2018 and fiscal 2017, respectively. Sales to customers in Europe represented approximately 23% of consolidated net sales for fiscal 2019 and approximately 24% of consolidated net sales for each of fiscal 2018 and fiscal 2017. Sales to customers in Asia represented approximately 52% of consolidated net sales for fiscal 2019 and approximately 58% of consolidated net sales for each of fiscal 2018 and 2017. Within Asia, sales into China represented approximately 22%, 30% and 32% of consolidated net sales for fiscal 2019, 2018 and 2017, respectively. Sales into Taiwan represented approximately 13%, 11% and 9% of consolidated net sales for fiscal 2019, 2018 and 2017, respectively. Sales into any other individual foreign country did not exceed 10% of the Company's net sales for any of the three years presented. With the exception of Arrow Electronics, the Company's largest distributor, which made up 10% of net sales, no other distributor or end customer accounted for more than 10% of net sales in fiscal 2019. In fiscal 2018 and fiscal 2017, no distributor or end customer accounted for more than 10% of net sales.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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