Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Disaggregation of Revenue
Net sales	$ 307,337	$ 397,879	$ 653,433	$ 803,379
Electronics – Passive Products and Sensors
Disaggregation of Revenue
Net sales	92,846	108,481	177,444	216,858
Electronics – Semiconductor
Disaggregation of Revenue
Net sales	130,425	151,072	260,016	308,089
Passenger Car Products
Disaggregation of Revenue
Net sales	30,309	53,916	82,954	110,459
Automotive Sensors
Disaggregation of Revenue
Net sales	13,899	24,682	38,073	50,739
Commercial Vehicle Products
Disaggregation of Revenue
Net sales	17,791	30,052	45,742	60,935
Industrial Products
Disaggregation of Revenue
Net sales	22,067	29,676	49,204	56,299
Electronics Segment
Disaggregation of Revenue
Net sales	223,271	259,553	437,460	524,947
Electronics Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue
Net sales	92,846	108,481	177,444	216,858
Electronics Segment | Electronics – Semiconductor
Disaggregation of Revenue
Net sales	130,425	151,072	260,016	308,089
Electronics Segment | Passenger Car Products
Disaggregation of Revenue
Net sales	0	0	0	0
Electronics Segment | Automotive Sensors
Disaggregation of Revenue
Net sales	0	0	0	0
Electronics Segment | Commercial Vehicle Products
Disaggregation of Revenue
Net sales	0	0	0	0
Electronics Segment | Industrial Products
Disaggregation of Revenue
Net sales	0	0	0	0
Automotive Segment
Disaggregation of Revenue
Net sales	61,999	108,650	166,769	222,133
Automotive Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue
Net sales	0	0	0	0
Automotive Segment | Electronics – Semiconductor
Disaggregation of Revenue
Net sales	0	0	0	0
Automotive Segment | Passenger Car Products
Disaggregation of Revenue
Net sales	30,309	53,916	82,954	110,459
Automotive Segment | Automotive Sensors
Disaggregation of Revenue
Net sales	13,899	24,682	38,073	50,739
Automotive Segment | Commercial Vehicle Products
Disaggregation of Revenue
Net sales	17,791	30,052	45,742	60,935
Automotive Segment | Industrial Products
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment
Disaggregation of Revenue
Net sales	22,067	29,676	49,204	56,299
Industrial Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment | Electronics – Semiconductor
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment | Passenger Car Products
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment | Automotive Sensors
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment | Commercial Vehicle Products
Disaggregation of Revenue
Net sales	0	0	0	0
Industrial Segment | Industrial Products
Disaggregation of Revenue
Net sales	$ 22,067	$ 29,676	$ 49,204	$ 56,299