Goodwill and intangible assets Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Jun. 29, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 345,529	$ 283,604
Accumulated Amortization	(147,700)	(111,392)
Net Book Value	197,829	172,212
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	338,506	276,107
Accumulated Amortization	(145,469)	(109,946)
Net Book Value	193,037	166,161
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,147	3,320
Accumulated Amortization	(1,084)	(480)
Net Book Value	2,063	2,840
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,876	4,177
Accumulated Amortization	(1,147)	(966)
Net Book Value	$ 2,729	$ 3,211