Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017
Numerator:
Income (loss) from continuing operations	$ 180,111	$ (142,889)	$ 263,351
Income (loss) from discontinued operations	(3,774)	(13,535)	261,927
Net income (loss)	$ 176,337	$ (156,424)	$ 525,278
Denominator:
Weighted average common shares for basic earnings per share	109,820	119,909	127,032
Net effect of dilutive stock based compensation awards	978		1,619
Weighted average common shares for diluted earnings per share	110,798	119,909	128,651
Basic earnings (loss) per share - continuing operations	$ 1.64	$ (1.19)	$ 2.07
Basic earnings (loss) per share-discontinued operations	(0.03)	(0.11)	2.06
Basic earnings (loss) per share	1.61	(1.30)	4.13
Diluted earnings (loss) per share - continuing operations	1.63	(1.19)	2.05
Diluted earnings (loss) per share-discontinued operations	(0.04)	(0.11)	2.03
Diluted earnings (loss) per share	$ 1.59	$ (1.30)	$ 4.08
Stock Options
Denominator:
antidilutive Securities	410	1,495	1,038