Segment Information (Schedule of Segment Revenue from Product Lines) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 27, 2014	Dec. 28, 2013
Segment Reporting Information [Line Items]
Net sales	$ 298,606	$ 218,883	$ 661,385	$ 564,679
Portable Audio Products [Member]
Segment Reporting Information [Line Items]
Net sales	253,355	181,749	529,487	449,305
Non-Portable Audio and Other Products [Member]
Segment Reporting Information [Line Items]
Net sales	$ 45,251	$ 37,134	$ 131,898	$ 115,374