Segment Information (Schedule of Segment Revenue from Product Lines) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	$ 306,756	$ 210,214	$ 589,389	$ 362,779
Portable Audio Products [Member]
Segment Reporting Information [Line Items]
Net sales	257,152	163,563	493,018	276,132
Non-Portable Audio and Other Products [Member]
Segment Reporting Information [Line Items]
Net sales	$ 49,604	$ 46,651	$ 96,371	$ 86,647

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.

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

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration