CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 24, 2022	Jun. 25, 2021
Income Statement [Abstract]
Revenues	$ 2,645,237	$ 2,262,224	$ 1,879,350
Cost of revenues	(2,308,964)	(1,983,630)	(1,657,987)
Gross profit	336,273	278,594	221,363
Selling, general and administrative expenses	(77,673)	(73,941)	(70,567)
Restructuring and other related costs	(6,896)	(135)	(43)
Operating income	251,704	204,518	150,753
Interest income	11,234	2,205	3,783
Interest expense	(1,472)	(432)	(1,100)
Foreign exchange gain (loss), net	(1,211)	2,302	508
Other income (expense), net	(159)	(1,627)	(3,460)
Income before income taxes	260,096	206,966	150,484
Income tax expense	(12,183)	(6,586)	(2,143)
Net income	247,913	200,380	148,341
Other comprehensive income (loss), net of tax
Change in net unrealized gain (loss) on available-for-sale securities	2,739	(6,326)	(1,182)
Change in net unrealized gain (loss) on derivative instruments	1,541	(578)	(5,106)
Change in net retirement benefits plan – prior service cost	473	622	584
Change in foreign currency translation adjustment	(75)	(245)	585
Total other comprehensive income (loss), net of tax	4,678	(6,527)	(5,119)
Net comprehensive income	$ 252,591	$ 193,853	$ 143,222
Earnings per share
Basic earnings per share (in USD per share)	$ 6.79	$ 5.43	$ 4.02
Diluted earnings per share (in USD per share)	$ 6.73	$ 5.36	$ 3.95
Weighted average number of ordinary shares outstanding (thousands of shares)
Weighted average number of ordinary shares outstanding, basic (in shares)	36,515	36,876	36,872
Weighted average number of ordinary shares outstanding, diluted (in shares)	36,855	37,394	37,555