Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jan. 01, 2022	Oct. 02, 2021	Jan. 02, 2021	Oct. 03, 2020	Jan. 01, 2022	Jan. 02, 2021
Numerator:
Net income	$ 150,821	$ 111,318	$ 19,163	$ (18,889)	$ 262,139	$ 274
Denominator:
Weighted average common shares for basic earnings per share	99,032		98,937		99,340	98,917
Net effect of dilutive stock based compensation awards	1,254		995		1,361	980
Weighted average common shares for diluted earnings per share	100,286		99,932		100,701	99,897
Basic earnings per share	$ 1.52		$ 0.19		$ 2.64	$ 0.00
Diluted earnings per share	$ 1.50		$ 0.19		$ 2.60	$ 0.00
Stock Options
Denominator:
antidilutive Securities	927		1,046		880	1,237