Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 241,877	$ 245,339	$ 699,004	$ 769,679
Cost of sales	171,711	169,277	484,356	536,628
Gross profit	70,166	76,062	214,648	233,051
Selling, general and administrative expenses	47,820	47,543	154,407	157,723
Restructuring and impairment charges	2,447	2,065	12,231	7,862
Other expense (income):
Interest expense	4,767	6,002	16,474	18,578
Interest earned	(474)	(813)	(1,035)	(2,456)
Foreign currency losses, net	1,450	3,655	1,278	7,662
Miscellaneous expense (income), net	(438)	(2,467)	(2,604)	(2,103)
Income before income taxes	14,594	20,077	33,897	45,785
Income tax expense	5,047	3,347	10,364	8,893
Income from continuing operations	9,547	16,730	23,533	36,892
Income (loss) from discontinued operations, net of income taxes	5,367	(3,520)	2,350	1,305
Net income	14,914	13,210	25,883	38,197
Less: Net income attributable to noncontrolling interests	440	390	826	902
Net income attributable to Ferro Corporation common shareholders	$ 14,474	$ 12,820	$ 25,057	$ 37,295
Basic earnings (loss):
Continuing operations	$ 0.11	$ 0.20	$ 0.28	$ 0.44
Discontinued operations	0.07	(0.04)	0.03	0.01
Basic earnings	0.18	0.16	0.31	0.45
Diluted earnings (loss):
Continuing operations	0.11	0.20	0.27	0.44
Discontinued operations	0.06	(0.04)	0.03	0.01
Diluted earnings	$ 0.17	$ 0.16	$ 0.30	$ 0.45