Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Net income (loss)	$ (69,818)	$ 28,156	$ 96,847
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(16,839)	6,815	(17,950)
Adjustments related to postretirement benefits	518	(2,375)	5,894
Change in unrealized gain/loss on investments	(55)	793	(694)
Other comprehensive income (loss), net of tax	(16,376)	5,233	(12,750)
Comprehensive income (loss)	$ (86,194)	$ 33,389	$ 84,097