Commitments and contingencies Litigation settlement (Details Textuals 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Mar. 29, 2014	Sep. 28, 2013	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Litigation Settlement [Abstract]
Gain on legal settlement, bargain purchase and other	$ 2,965	$ 19,100	$ 0	$ 22,102	$ 31,350