CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 24, 2022
Income Statement [Abstract]
Revenues	$ 2,882,967	$ 2,645,237	$ 2,262,224
Cost of revenues	(2,526,849)	(2,308,964)	(1,983,630)
Gross profit	356,118	336,273	278,594
Selling, general and administrative expenses	(78,481)	(77,673)	(73,941)
Restructuring and other related costs	(32)	(6,896)	(135)
Operating income	277,605	251,704	204,518
Interest income	33,204	11,234	2,205
Interest expense	(124)	(1,472)	(432)
Foreign exchange gain (loss), net	382	(1,211)	2,302
Other income (expense), net	287	(159)	(1,627)
Income before income taxes	311,354	260,096	206,966
Income tax expense	(15,173)	(12,183)	(6,586)
Net income	296,181	247,913	200,380
Other comprehensive income (loss), net of tax
Change in net unrealized gain (loss) on available-for-sale securities	2,100	2,739	(6,326)
Change in net unrealized gain (loss) on derivative instruments	2,561	1,541	(578)
Change in net retirement benefits plan – prior service cost	330	473	622
Change in foreign currency translation adjustment	(17)	(75)	(245)
Total other comprehensive income (loss), net of tax	4,974	4,678	(6,527)
Net comprehensive income	$ 301,155	$ 252,591	$ 193,853
Earnings per share
Basic earnings per share (in USD per share)	$ 8.17	$ 6.79	$ 5.43
Diluted earnings per share (in USD per share)	$ 8.10	$ 6.73	$ 5.36
Weighted average number of ordinary shares outstanding (thousands of shares)
Weighted average number of ordinary shares outstanding, basic (in shares)	36,246	36,515	36,876
Weighted average number of ordinary shares outstanding, diluted (in shares)	36,564	36,855	37,394