Summary of Significant Accounting Policies - Estimates at Completion (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Disaggregation of Revenue [Line Items]
Total net revenues	$ 212,558	$ 201,412	$ 608,932	$ 589,259
Operating income	(80,050)	15,266	(46,302)	41,812
EAC adjustment
Disaggregation of Revenue [Line Items]
Total net revenues	(515)	(1,054)	(640)	(2,602)
Operating income	$ (515)	$ (1,054)	$ (640)	$ (2,602)