Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance at Dec. 30, 2023	$ 49,429	$ 686,146	$ 318,558	$ (34,779)	$ (69,184)	$ 950,170
Net Income (loss)	0	0	(14,635)	0	0	(14,635)
Changes in cumulative translation adjustment	0	0	0	(9,407)	0	(9,407)
Adjustments related to postretirement benefits	0	0	0	(5)	0	(5)
Changes in unrealized gains and losses on investments, net of tax	0	0	0	(96)	0	(96)
Shares issued for restricted stock units vested	0	(11,677)	0	0	11,677	0
Repurchase and retirement of stock		(85)	0	0		(4,534)
Repurchase and retirement of stock					(4,449)
Common stock repurchases	0	0	0	0	(10,764)	(10,764)
Share-based compensation expense	0	4,628	0	0	0	4,628
Balance at Mar. 30, 2024	49,429	679,012	303,923	(44,287)	(72,720)	915,357
Balance at Dec. 28, 2024	49,601	697,489	248,740	(51,155)	(87,784)	856,891	[1]
Net Income (loss)	0	0	(30,804)	0	0	(30,804)
Changes in cumulative translation adjustment	0	0	0	6,399	0	6,399
Adjustments related to postretirement benefits	0	0	0	(5)	0	(5)
Changes in unrealized gains and losses on investments, net of tax	0	0	0	4	0	4
Shares issued for restricted stock units vested	0	(10,461)	0	0	10,461	0
Repurchase and retirement of stock		1,736	0	0		(2,389)
Repurchase and retirement of stock					(4,125)
Common stock repurchases	0	0	0	0	(8,609)	(8,609)
Share-based compensation expense	0	6,230	0	0	0	6,230
Balance at Mar. 29, 2025	$ 49,601	$ 694,994	$ 217,936	$ (44,757)	$ (90,057)	$ 827,717

[1] Derived from December 28, 2024, audited financial statements