Earnings per share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
Numerator:
Net income	$ 127,946	$ 120,624
Denominator:
Weighted average common shares for basic earnings per share	138,309,000	137,414,000
Net effect of dilutive stock option, restricted stock and performance share awards	2,541,000	2,310,000
Weighted average common shares for diluted earnings per share	140,850,000	139,724,000
Basic earnings per share	$ 0.93	$ 0.88
Diluted earnings per share	$ 0.91	$ 0.86
Stock options excluded from earnings per share calculation due to anti-dilutive effect	0	417,692