Segment Information - Revenues and Long-lived Assets by Geographical Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024	Dec. 28, 2024
Segment Reporting Information
Net sales	$ 624,640	$ 567,390	$ 1,792,360	$ 1,661,263
Long-lived assets	513,965		513,965		$ 477,068
Additions to long-lived assets			45,086	50,091
United States
Segment Reporting Information
Net sales	218,532	211,940	636,390	604,198
Long-lived assets	73,367		73,367		74,698
Additions to long-lived assets			8,724	9,591
China
Segment Reporting Information
Net sales	146,045	133,051	421,782	379,730
Long-lived assets	128,559		128,559		132,504
Additions to long-lived assets			8,385	10,681
Mexico
Segment Reporting Information
Long-lived assets	85,471		85,471		89,558
Additions to long-lived assets			4,953	8,875
Germany
Segment Reporting Information
Long-lived assets	106,272		106,272		58,758
Additions to long-lived assets			14,958	12,160
Philippines
Segment Reporting Information
Long-lived assets	61,929		61,929		66,174
Additions to long-lived assets			3,266	3,025
Other countries
Segment Reporting Information
Net sales	260,063	$ 222,399	734,188	677,335
Long-lived assets	$ 58,367		58,367		$ 55,376
Additions to long-lived assets			$ 4,800	$ 5,759