Warranties (Activity for Estimated Warranty Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Product Warranties Disclosures [Abstract]
Product Warranty Accrual, Additions from Business Acquisition	$ 0	$ 0	$ 1,111
Accrual for estimated warranties
Balance at beginning of period	11,057	9,388	9,953	$ 9,262
Charged to costs and expenses	5,970	3,072	10,235	6,250
Payments and deductions	(4,222)	(3,067)	(8,494)	(6,119)
Balance at end of period	$ 12,805	$ 9,393	$ 12,805	$ 9,393