Goodwill and intangible assets (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 29, 2013	Jun. 30, 2012
Goodwill [Line Items]
Gross Carrying Amount	$ 283,604	$ 260,667
Accumulated Amortization	(111,392)	(79,328)
Net Book Value	172,212	181,339
Customer Relationships [Member]
Goodwill [Line Items]
Gross Carrying Amount	272,312	248,105
Accumulated Amortization	(107,636)	(76,645)
Net Book Value	164,676	171,460
Customer Lists [Member]
Goodwill [Line Items]
Gross Carrying Amount	3,795	3,690
Accumulated Amortization	(2,310)	(1,279)
Net Book Value	1,485	2,411
Trade Names [Member]
Goodwill [Line Items]
Gross Carrying Amount	3,320	3,820
Accumulated Amortization	(480)	(970)
Net Book Value	2,840	2,850
Other [Member]
Goodwill [Line Items]
Gross Carrying Amount	4,177	5,052
Accumulated Amortization	(966)	(434)
Net Book Value	$ 3,211	$ 4,618