Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 28, 2024	Sep. 28, 2024	Dec. 30, 2023	Sep. 30, 2023	Dec. 28, 2024	Dec. 30, 2023
Numerator:
Net income	$ 87,253	$ 58,956	$ 117,931	$ 209,268	$ 146,209	$ 327,199
Denominator:
Weighted average common shares for basic earnings per share	86,846		90,253		87,469	90,874
Net effect of dilutive stock based compensation awards	1,481		1,539		1,390	1,611
Weighted average common shares for diluted earnings per share	88,327		91,792		88,859	92,485
Basic earnings per share	$ 1		$ 1.31		$ 1.67	$ 3.6
Diluted earnings per share	$ 0.99		$ 1.28		$ 1.65	$ 3.54
Stock Options
Denominator:
antidilutive Securities			122			122