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Segment Information (Schedule of Segment Revenue from Product Lines) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 26, 2016	Mar. 28, 2015	Mar. 29, 2014
Segment Reporting Information [Line Items]
Net sales	$ 231,999	$ 347,863	$ 306,756	$ 282,633	$ 255,183	$ 298,606	$ 210,214	$ 152,565	$ 1,169,251	$ 916,568	$ 714,338
Audio Products [Member]
Segment Reporting Information [Line Items]
Net sales									989,101	740,301	562,718
Non-Portable Audio and Other Products [Member]
Segment Reporting Information [Line Items]
Net sales									$ 180,150	$ 176,267	$ 151,620

X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Details

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