Note 1 - Summary of Significant Accounting Policies and Other Information - Revenue Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Revenue	$ 459,183	$ 313,355	$ 876,996	$ 598,797
Electronics - Passive Products and Sensors [Member]
Revenue	128,321		242,816
Electronics - Semiconductor [Member]
Revenue	171,036		320,952
Passenger Car Products [Member]
Revenue	63,581		127,160
Automotive Sensors [Member]
Revenue	30,729		62,052
Commercial Vehicle Products [Member]
Revenue	32,862		64,090
Industrial Products [Member]
Revenue	32,654		59,926
Electronics [Member]
Revenue	299,357	169,387	563,768	323,154
Electronics [Member] | Electronics - Passive Products and Sensors [Member]
Revenue	128,321		242,816
Electronics [Member] | Electronics - Semiconductor [Member]
Revenue	171,036		320,952
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	127,172	116,457	253,302	224,297
Automotive [Member] | Electronics - Passive Products and Sensors [Member]
Revenue
Automotive [Member] | Electronics - Semiconductor [Member]
Revenue
Automotive [Member] | Passenger Car Products [Member]
Revenue	63,581		127,160
Automotive [Member] | Automotive Sensors [Member]
Revenue	30,729		62,052
Automotive [Member] | Commercial Vehicle Products [Member]
Revenue	32,862		64,090
Automotive [Member] | Industrial Products [Member]
Revenue
Industrial [Member]
Revenue	32,654	$ 27,511	59,926	$ 51,346
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	$ 32,654		$ 59,926