Condensed Consolidated Statements Of Comprehensive Income (Loss) - 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 Comprehensive Income (Loss) [Abstract]
Net income	$ 14,914	$ 13,210	$ 25,883	$ 38,197
Other comprehensive income (loss), net of income tax:
Foreign currency translation income (loss)	13,831	(10,966)	(678)	(3,585)
Cash flow hedging instruments, unrealized income (loss)	269	(1,644)	(10,331)	(13,307)
Other comprehensive income (loss), net of income tax	14,100	(12,610)	(11,009)	(16,892)
Total comprehensive income	29,014	600	14,874	21,305
Less: Comprehensive income attributable to noncontrolling interests	197	146	453	648
Comprehensive income attributable to Ferro Corporation	$ 28,817	$ 454	$ 14,421	$ 20,657