Restructuring (table) (detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Restructuring Cost and Reserve [Line Items]
Balance			$ 1,501		$ 1,501	$ 37
Plant Restructuring	0	347	154	2,510	501	2,510
Cash payments/write offs					(408)	(15)
Balance	1,594			2,532	1,594	2,532
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Balance			20		20	37
Cash payments/write offs					(8)	(15)
Balance	12			22	12	22
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Balance			307		307
Plant Restructuring		6	154	1,403
Cash payments/write offs					(400)
Balance	67			1,403	67	1,403
Long Lived Asset Charges [Member]
Restructuring Cost and Reserve [Line Items]
Balance			1,174		1,174
Plant Restructuring		341		1,107
Cash payments/write offs					0
Balance	$ 1,515			$ 1,107	$ 1,515	$ 1,107