Goodwill and intangible assets Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Jun. 29, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 343,737	$ 283,604
Accumulated Amortization	(134,661)	(111,392)
Net Book Value	209,076	172,212
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	324,011	276,107
Accumulated Amortization	(132,173)	(109,946)
Net Book Value	191,838	166,161
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,917	3,320
Accumulated Amortization	(1,191)	(480)
Net Book Value	4,726	2,840
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,809	4,177
Accumulated Amortization	(1,297)	(966)
Net Book Value	$ 12,512	$ 3,211