CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 24, 2022	Jun. 25, 2021	Jun. 26, 2020
Income Statement [Abstract]
Revenues	$ 2,262,224	$ 1,879,350	$ 1,641,836
Cost of revenues	(1,983,630)	(1,657,987)	(1,455,731)
Gross profit	278,594	221,363	186,105
Selling, general and administrative expenses	(73,941)	(70,567)	(68,374)
Expenses related to reduction in workforce	(135)	(43)	(329)
Operating income	204,518	150,753	117,402
Interest income	2,205	3,783	7,592
Interest expense	(432)	(1,100)	(3,044)
Foreign exchange gain (loss), net	2,302	508	(3,797)
Other income (expense), net	(1,627)	(3,460)	1,089
Income before income taxes	206,966	150,484	119,242
Income tax expense	(6,586)	(2,143)	(5,763)
Net income	200,380	148,341	113,479
Other comprehensive income (loss), net of tax:
Change in net unrealized gain (loss) on available-for-sale securities	(6,326)	(1,182)	538
Change in net unrealized gain (loss) on derivative instruments	(578)	(5,106)	570
Change in retirement benefit plan – prior service cost	622	584	528
Change in foreign currency translation adjustment	(245)	585	(397)
Total other comprehensive income (loss), net of tax	(6,527)	(5,119)	1,239
Net comprehensive income	$ 193,853	$ 143,222	$ 114,718
Earnings per share
Basic earnings per share (in USD per share)	$ 5.43	$ 4.02	$ 3.07
Diluted earnings per share (in USD per share)	$ 5.36	$ 3.95	$ 3.01
Weighted average number of ordinary shares outstanding (thousands of shares)
Weighted average number of ordinary shares outstanding, basic (in shares)	36,876	36,872	36,908
Weighted average number of ordinary shares outstanding, diluted (in shares)	37,394	37,555	37,665