Warranties (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Accrual for estimated warranties
Balance at beginning of period	$ 8,782	$ 10,809	$ 9,456	$ 9,371
Liability assumed with Palm Harbor transaction				1,932
Charged to costs and expenses	2,588	1,797	8,033	7,259
Payments and deductions	(2,838)	(2,707)	(8,957)	(8,663)
Balance at end of period	$ 8,532	$ 9,899	$ 8,532	$ 9,899