Acquisitions and divestitures (Details Textuals) (USD $)	9 Months Ended			3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 30, 2013 Internix, inc [Member]	Mar. 29, 2014 Electronics Marketing [Member]	Mar. 29, 2014 Technology Solutions [Member]	Mar. 30, 2013 TS Asia [Member]
Business Acquisition [Line Items]
Goodwill	$ 61,187,000			$ 50,600,000	$ 10,600,000
Number of businesses acquired	3
Aggregate annualized revenue of acquired businesses	490,000,000
Cash paid for acquistions, net of cash acquired	116,882,000	244,062,000
Aggregate consideration for acquisitions	219,726,000
Contingent consideration, maximum additional payment	50,000,000
Gain on bargain purchase	0	31,350,000	33,000,000
Gain on bargain purchase per share on a diluted basis			$ 0.23
Gain (Loss) on disposition of business						1,700,000
Gain (Loss) on sale of business per share on a diluted basis						$ 0.01
Bargain purchase gain recognized		31,400,000
Divestiture of business, proceeds received from earn-out	$ 0	$ 3,613,000