Shareholders' equity (Share repurchase program textuals) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Nov. 25, 2023	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2023	Dec. 31, 2022
Shareholders' equity
Shares repurchased during period (in shares)		1.3
Cost of repurchase		$ 59,900
Remaining authorized repurchase amount		$ 232,500		$ 232,500
Common Stock, Dividends, Per Share, Declared	$ 0.31
Cash dividend paid per share		$ 0.31	$ 0.29	$ 0.62	$ 0.58
Dividends paid on common stock		$ 27,800		$ 56,138	$ 53,304