Segment And Geographic Information (Schedule Of Geographic Net Sales And Long-Lived Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Geographic net sales	$ 601,602	$ 660,591	$ 1,204,422	$ 1,268,727
Long-lived assets	375,683		375,683		$ 301,589
United States [Member]
Segment Reporting Information [Line Items]
Geographic net sales	416,465	449,598	834,829	841,565
Long-lived assets	248,272		248,272		190,056
Asia [Member]
Segment Reporting Information [Line Items]
Geographic net sales	91,745	115,914	178,369	222,905
Long-lived assets	79,193		79,193		79,051
Europe [Member]
Segment Reporting Information [Line Items]
Geographic net sales	65,048	73,040	138,393	153,581
Long-lived assets	21,220		21,220		9,537
Other Foreign [Member]
Segment Reporting Information [Line Items]
Geographic net sales	28,344	$ 22,039	52,831	$ 50,676
Long-lived assets	$ 26,998		$ 26,998		$ 22,945