Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 30, 2024	Dec. 30, 2023	Sep. 30, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Mar. 30, 2024	Apr. 01, 2023
Numerator:
Net income	$ 88,834	$ 117,931	$ 209,268	$ 187,426	$ 243,886	$ 184,261	$ 416,033	$ 615,572
Denominator:
Weighted average common shares for basic earnings per share	90,430			91,436			90,726	92,226
Net effect of dilutive stock based compensation awards	826			1,020			1,349	1,390
Weighted average common shares for diluted earnings per share	91,256			92,456			92,075	93,616
Basic earnings per share	$ 0.98			$ 2.05			$ 4.59	$ 6.67
Diluted earnings per share	$ 0.97			$ 2.03			$ 4.52	$ 6.58
Stock Options
Denominator:
antidilutive Securities	122			128			122	146