Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 405,500	$ 417,813
Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	108,377	114,495
Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	157,017	149,916
Passenger Car Products
Disaggregation of Revenue [Line Items]
Net sales	56,543	63,580
Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	26,057	31,323
Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	30,883	31,228
Industrial Products
Disaggregation of Revenue [Line Items]
Net sales	26,623	27,271
Electronics Segment
Disaggregation of Revenue [Line Items]
Net sales	265,394	264,411
Electronics Segment | Electronics – Passive Products and Sensors
Disaggregation of Revenue [Line Items]
Net sales	108,377	114,495
Electronics Segment | Electronics – Semiconductor
Disaggregation of Revenue [Line Items]
Net sales	157,017	149,916
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
Automotive Segment
Disaggregation of Revenue [Line Items]
Net sales	113,483	126,131
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	56,543	63,580
Automotive Segment | Automotive Sensors
Disaggregation of Revenue [Line Items]
Net sales	26,057	31,323
Automotive Segment | Commercial Vehicle Products
Disaggregation of Revenue [Line Items]
Net sales	30,883	31,228
Automotive Segment | Industrial Products
Disaggregation of Revenue [Line Items]
Net sales
Industrial Segment
Disaggregation of Revenue [Line Items]
Net sales	26,623	27,271
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	$ 26,623	$ 27,271