Acquisitions - Preliminary Price Allocation (Details) - USD ($) $ in Thousands		9 Months Ended
	Dec. 31, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024
Total purchase consideration:
Cash, net of cash acquired		$ 57,417	$ 0
Allocation of consideration to assets acquired and liabilities assumed:
Goodwill		$ 1,356,038		$ 1,228,502
Dortmund Fab
Total purchase consideration:
Cash, net of cash acquired	$ 95,942
Allocation of consideration to assets acquired and liabilities assumed:
Trade receivables	5,985
Inventories	6,600
Other current assets	8,278
Property, plant, and equipment	30,132
Intangible assets	1,800
Goodwill	57,321
Other long-term assets	8,579
Current liabilities	(7,464)
Other long-term liabilities	(15,289)
Assets acquired and liabilities assumed	$ 95,942