Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 361,971	$ 439,191	$ 1,165,350	$ 1,316,187
Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	94,766	124,174	311,624	366,990
Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	132,486	172,298	440,575	493,250
Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	53,889	57,761	164,348	184,922
Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	23,877	27,311	74,616	89,362
Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	26,915	29,344	87,850	93,434
Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	30,038	28,303	86,337	88,229
Electronics Segment
Disaggregation of Revenue [Line Items]
Net sales	227,252	296,472	752,199	860,240
Electronics Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	94,766	124,174	311,624	366,990
Electronics Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	132,486	172,298	440,575	493,250
Electronics Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Electronics Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Electronics Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Electronics Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Automotive Segment
Disaggregation of Revenue [Line Items]
Net sales	104,681	114,416	326,814	367,718
Automotive Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Automotive Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Automotive Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	53,889	57,761	164,348	184,922
Automotive Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	23,877	27,311	74,616	89,362
Automotive Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	26,915	29,344	87,850	93,434
Automotive Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment
Disaggregation of Revenue [Line Items]
Net sales	30,038	28,303	86,337	88,229
Industrial Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Industrial Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	$ 30,038	$ 28,303	$ 86,337	$ 88,229