Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 346,096	$ 405,500
Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	84,598	108,377
Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	129,591	157,017
Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	52,645	56,543
Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	24,174	26,057
Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	27,951	30,883
Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	27,137	26,623
Electronics Segment
Disaggregation of Revenue [Line Items]
Net sales	214,189	265,394
Electronics Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	84,598	108,377
Electronics Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	129,591	157,017
Electronics Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Electronics Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0
Electronics Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Electronics Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Automotive Segment
Disaggregation of Revenue [Line Items]
Net sales	104,770	113,483
Automotive Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0
Automotive Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	0	0
Automotive Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	52,645	56,543
Automotive Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	24,174	26,057
Automotive Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	27,951	30,883
Automotive Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment
Disaggregation of Revenue [Line Items]
Net sales	27,137	26,623
Industrial Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment | Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	0	0
Industrial Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	$ 27,137	$ 26,623