Earnings Per Share (Calculations Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Basic earnings per share computation:
Net income attributable to Ferro Corporation common shareholders	$ 6,599	$ 9,959	$ 17,569	$ 27,164
Adjustment for loss (income) from discontinued operations	5,646	3,520	9,602	(3,064)
Total	$ 12,245	$ 13,479	$ 27,171	$ 24,100
Weighted-average common shares outstanding	87,264	86,936	87,189	86,857
Basic earnings per share from continuing operations attributable to Ferro Corporation common shareholders	$ 0.14	$ 0.15	$ 0.31	$ 0.28
Diluted earnings per share computation:
Net income attributable to Ferro Corporation common shareholders	$ 6,599	$ 9,959	$ 17,569	$ 27,164
Adjustment for loss (income) from discontinued operations	5,646	3,520	9,602	(3,064)
Total	$ 12,245	$ 13,479	$ 27,171	$ 24,100
Weighted-average common shares outstanding	87,264	86,936	87,189	86,857
Assumed exercise of stock options	552	522	547	544
Assumed satisfaction of deferred stock unit conditions	108		87	45
Assumed satisfaction of restricted stock unit conditions	300	207	264	222
Assumed satisfaction of performance stock unit conditions	576	650	569	625
Assumed satisfaction of restricted share conditions				16
Weighted-average diluted shares outstanding	88,800	88,315	88,656	88,309
Diluted earnings per share from continuing operations attributable to Ferro Corporation common shareholders	$ 0.14	$ 0.15	$ 0.31	$ 0.27