Summary of Significant Accounting Policies - Disaggregated Revenue (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
Electronic Systems
Disaggregation of Revenue [Line Items]
Total net revenues	123,082	115,412	343,056	324,391
Structural Systems
Disaggregation of Revenue [Line Items]
Total net revenues	89,476	86,000	265,876	264,868
Military and space
Disaggregation of Revenue [Line Items]
Total net revenues	125,569	111,402	356,141	310,869
Military and space | Electronic Systems
Disaggregation of Revenue [Line Items]
Total net revenues	93,639	85,433	262,201	227,925
Military and space | Structural Systems
Disaggregation of Revenue [Line Items]
Total net revenues	31,930	25,969	93,940	82,944
Commercial aerospace
Disaggregation of Revenue [Line Items]
Total net revenues	76,539	84,626	225,914	251,186
Commercial aerospace | Electronic Systems
Disaggregation of Revenue [Line Items]
Total net revenues	18,993	24,595	53,978	69,262
Commercial aerospace | Structural Systems
Disaggregation of Revenue [Line Items]
Total net revenues	57,546	60,031	171,936	181,924
Industrial
Disaggregation of Revenue [Line Items]
Total net revenues	10,450	5,384	26,877	27,204
Industrial | Electronic Systems
Disaggregation of Revenue [Line Items]
Total net revenues	$ 10,450	$ 5,384	$ 26,877	$ 27,204