Note 1 - Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017
Revenue	$ 417,813	$ 285,441
Electronics - Passive Products and Sensors [Member]
Revenue	114,495
Electronics - Semiconductor [Member]
Revenue	149,916
Passenger Car Products [Member]
Revenue	63,580
Automotive Sensors [Member]
Revenue	31,323
Commercial Vehicle Products [Member]
Revenue	31,228
Industrial Products [Member]
Revenue	27,271
Electronics [Member]
Revenue	264,411	153,767
Electronics [Member] | Electronics - Passive Products and Sensors [Member]
Revenue	114,495
Electronics [Member] | Electronics - Semiconductor [Member]
Revenue	149,916
Electronics [Member] | Passenger Car Products [Member]
Revenue
Electronics [Member] | Automotive Sensors [Member]
Revenue
Electronics [Member] | Commercial Vehicle Products [Member]
Revenue
Electronics [Member] | Industrial Products [Member]
Revenue
Automotive [Member]
Revenue	126,131	107,839
Automotive [Member] | Electronics - Passive Products and Sensors [Member]
Revenue
Automotive [Member] | Electronics - Semiconductor [Member]
Revenue
Automotive [Member] | Passenger Car Products [Member]
Revenue	63,580
Automotive [Member] | Automotive Sensors [Member]
Revenue	31,323
Automotive [Member] | Commercial Vehicle Products [Member]
Revenue	31,228
Automotive [Member] | Industrial Products [Member]
Revenue
Industrial [Member]
Revenue	27,271	$ 23,835
Industrial [Member] | Electronics - Passive Products and Sensors [Member]
Revenue
Industrial [Member] | Electronics - Semiconductor [Member]
Revenue
Industrial [Member] | Passenger Car Products [Member]
Revenue
Industrial [Member] | Automotive Sensors [Member]
Revenue
Industrial [Member] | Commercial Vehicle Products [Member]
Revenue
Industrial [Member] | Industrial Products [Member]
Revenue	$ 27,271