CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 29, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenues	$ 685,477	$ 655,429
Cost of revenues	(601,073)	(572,673)
Gross profit	84,404	82,756
Selling, general and administrative expenses	(20,429)	(20,565)
Operating income	63,975	62,191
Interest income	5,898	1,559
Interest expense	(45)	(391)
Foreign exchange gain (loss), net	415	2,085
Other income (expense), net	(80)	(141)
Income before income taxes	70,163	65,303
Income tax expense	(5,074)	(688)
Net income	65,089	64,615
Other comprehensive income (loss), net of tax:
Change in net unrealized gain (loss) on available-for-sale securities	948	(1,461)
Change in net unrealized gain (loss) on derivative instruments	(561)	(1,218)
Change in net retirement benefits plan – prior service cost	126	168
Change in foreign currency translation adjustment	100	246
Total other comprehensive income (loss), net of tax	613	(2,265)
Net comprehensive income	$ 65,702	$ 62,350
Earnings per share
Basic (in USD per share)	$ 1.80	$ 1.77
Diluted (in USD per share)	$ 1.78	$ 1.76
Weighted-average number of ordinary shares outstanding (thousands of shares)
Basic (in shares)	36,256	36,528
Diluted (in shares)	36,481	36,758