Earnings per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2022	Oct. 01, 2022	Jan. 01, 2022	Oct. 02, 2021	Dec. 31, 2022	Jan. 01, 2022
Numerator:
Net income	$ 243,886	$ 184,261	$ 150,821	$ 111,318	$ 428,147	$ 262,139
Denominator:
Weighted average common shares for basic earnings per share	91,192		99,032		92,621	99,340
Net effect of dilutive stock based compensation awards	1,563		1,254		1,574	1,361
Weighted average common shares for diluted earnings per share	92,755		100,286		94,195	100,701
Basic earnings per share	$ 2.67		$ 1.52		$ 4.62	$ 2.64
Diluted earnings per share	$ 2.63		$ 1.50		$ 4.55	$ 2.60
Stock Options
Denominator:
antidilutive Securities	174		927		174	880