Shareholders' equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 24, 2022	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2020	May 31, 2019	Feb. 28, 2018	Aug. 31, 2017
Shareholders Equity [Line Items]
Ordinary shares, shares authorized (in shares)	500,000,000	500,000,000
Ordinary shares, par value (in USD per share)	$ 0.01	$ 0.01
Preferred shares, shares authorized (in shares)	5,000,000	5,000,000
Preferred shares, par value (in USD per share)	$ 0.01	$ 0.01
Share repurchase program, approved amount									$ 30,000
Share repurchase program, increase in shares authorized for repurchase				$ 47,600	$ 78,700	$ 58,500	$ 50,000	$ 30,000
Treasury stock, carrying basis	$ 60,500					$ 294,800
Repurchased shares (in shares)	211,726	488,477	628,428
Treasury stock shares repurchased average price (in USD per share)	$ 186.49
Treasury stock shares repurchased value	$ 39,490	$ 47,575	$ 59,915
Equity Incentive Plans
Shareholders Equity [Line Items]
Ordinary shares issued upon vesting of restricted shares (in shares)	173,286	235,476	299,655