Operating Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 28, 2013	Dec. 29, 2012
Net revenue:
Net revenue	$ 288,520	$ 271,213	$ 892,232	$ 683,544
Income (loss) from operations:
Income (loss) from operations	15,392	5,680	28,083	(17,337)
Interest expense	(1,469)	(1,368)	(4,381)	(5,086)
Interest income	46	52	128	195
Loss on retirement of convertible subordinated notes	0	0	0	(2,756)
Other income	427	143	1,198	22
Income (loss) before income taxes	14,396	4,507	25,028	(24,962)
CPG [Member]
Net revenue:
Net revenue	238,688	222,662	731,876	535,687
Income (loss) from operations:
Income (loss) from operations	32,806	25,689	83,838	36,149
MPG [Member]
Net revenue:
Net revenue	49,831	48,551	160,347	147,857
Income (loss) from operations:
Income (loss) from operations	8,028	1,885	23,759	6,224
Other operating segment [Member]
Net revenue:
Net revenue	1	0	9	0
Income (loss) from operations:
Income (loss) from operations	(849)	(750)	(2,423)	(2,014)
All other [Member]
Income (loss) from operations:
Income (loss) from operations	$ (24,593)	$ (21,144)	$ (77,091)	$ (57,696)