Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Numerator:
Income from continuing operations	$ 56,794	$ 32,465	$ 114,976	$ 100,153
Income (loss) from discontinued operations	(10,070)	70,753	(9,949)	71,908
Net income	$ 46,724	$ 103,218	$ 105,027	$ 172,061
Denominator:
Weighted average common shares for basic earnings per share	120,400	127,901	121,543	127,716
Net effect of dilutive stock based compensation awards	1,349	2,446	1,324	2,339
Weighted average common shares for diluted earnings per share	121,749	130,347	122,867	130,055
Basic earnings per share-continuing operations	$ 0.47	$ 0.25	$ 0.94	$ 0.78
Basic earnings (loss) per share-discontinued operations	(0.08)	0.55	(0.08)	0.56
Basic earnings per share	0.39	0.80	0.86	1.34
Diluted earnings per share-continuing operations	0.47	0.25	0.93	0.77
Diluted earnings (loss) per share-discontinued operations	(0.08)	0.54	(0.08)	0.55
Diluted earnings per share	$ 0.39	$ 0.79	$ 0.85	$ 1.32
Stock options excluded from earnings per share calculation due to antidilutive effect	1,508	7	1,508	7