Note 14. Stock Based Compensation (Detail) - Summary of Unrecognized Stock-Based Compensation Expense Related to Stock Options and RSUs (USD $) In Thousands, unless otherwise specified	1 Months Ended				12 Months Ended
Oct. 23, 2008	Mar. 31, 2013	Apr. 01, 2012	Mar. 27, 2011	Mar. 31, 2013 Stock Options [Member]	Apr. 01, 2012 Stock Options [Member]	Mar. 27, 2011 Stock Options [Member]	Mar. 31, 2013 Restricted Stock Units (RSUs) [Member]	Apr. 01, 2012 Restricted Stock Units (RSUs) [Member]	Mar. 27, 2011 Restricted Stock Units (RSUs) [Member]
Amount		$ 10,142	$ 11,656	$ 9,626	$ 6,771	$ 8,119	$ 7,290	$ 3,371	$ 3,537	$ 2,336
Weighted Average Remaining Recognition Period	2 years				2 years 292 days	2 years 292 days	2 years 146 days	2 years 6 months	3 years 73 days	1 year 292 days

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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