Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Numerator:
Income (loss) from continuing operations	$ 94,935	$ (315,604)	$ 215,239	$ (200,628)
Loss from discontinued operations	(6,887)	(4,462)	(7,066)	(14,411)
Net income (loss)	$ 88,048	$ (320,066)	$ 208,173	$ (215,039)
Denominator:
Weighted average common shares for basic earnings per share	108,074	119,601	111,222	120,895
Net effect of dilutive stock based compensation awards	748		1,030
Weighted average common shares for diluted earnings per share	108,822	119,601	112,252	120,895
Basic earnings (loss) per share - continuing operations	$ 0.87	$ (2.64)	$ 1.93	$ (1.66)
Basic loss per share-discontinued operations	(0.06)	(0.04)	(0.06)	(0.12)
Basic earnings (loss) per share	0.81	(2.68)	1.87	(1.78)
Diluted earnings (loss) per share - continuing operations	0.87	(2.64)	1.91	(1.66)
Diluted loss per share-discontinued operations	(0.06)	(0.04)	(0.06)	(0.12)
Diluted earnings (loss) per share	$ 0.81	$ (2.68)	$ 1.85	$ (1.78)
Stock Options
Denominator:
antidilutive Securities	528	1,591	410	1,591