Geographic and Segment Information (Notes)

12 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

GEOGRAPHIC AND SEGMENT INFORMATION

The Company's reporting segments include 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 revenues and gross profit for each segment (amounts in thousands):

	Years ended March 31,
	2016				2015				2014
	Net Sales		Gross Profit		Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	2,084,210	$	1,116,340	$	2,057,443	$	1,139,971	$	1,836,639	$	1,034,165
Technology licensing	89,124		89,124		89,593		89,593		94,578		94,578
Total	$	2,173,334	$	1,205,464	$	2,147,036	$	1,229,564	$	1,931,217	$	1,128,743

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 (amounts in thousands):

	March 31,
	2016		2015
United States	$	373,860	$	331,372
Thailand	182,813		197,981
Various other countries	52,723		52,219
Total long-lived assets	$	609,396	$	581,572

Sales to unaffiliated customers located outside the U.S., primarily in Asia and Europe, aggregated approximately 84% of consolidated net sales for each of fiscal 2016, 2015 and 2014.  Sales to customers in Europe represented approximately 22% of consolidated net sales for fiscal 2016 and approximately 21% of consolidated net sales for each of fiscal 2015 and 2014.  Sales to customers in Asia represented approximately 59% of consolidated net sales for each of fiscal 2016 and 2015, and approximately 60% of consolidated net sales for fiscal 2014.  Within Asia, sales into China, including Hong Kong, represented approximately 30%, 28% and 29% of consolidated net sales for fiscal 2016, 2015 and 2014, respectively. Sales into Taiwan represented approximately 12%, 14% and 13% of consolidated net sales for fiscal 2016, 2015 and 2014, 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.

No single end customer or distributor accounted for 10% or more of the Company's net sales during fiscal 2016, 2015 or 2014.