Warranties (Activity for Estimated Warranty Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Product Warranties Disclosures [Abstract]
Product Warranty Accrual, Additions from Business Acquisition	$ 0	$ 0	$ 838	$ 0
Accrual for estimated warranties
Balance at beginning of period	16,470	14,046	15,479	13,371
Charged to costs and expenses	5,907	6,030	18,529	18,310
Payments and deductions	(6,337)	(4,675)	(18,806)	(16,280)
Balance at end of period	$ 16,040	$ 15,401	$ 16,040	$ 15,401