Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 29,861	$ 21,229	$ 53,459	$ 43,350
Other comprehensive income, net of income tax:
Foreign currency translation (loss) income	(30,315)	13,866	(24,528)	21,077
Cash flow hedging instruments, unrealized (loss) gain	(1,336)		(22)
Postretirement benefit liabilities (loss) gain	10	16	17	12
Other comprehensive (loss) income, net of income tax	(31,641)	13,882	(24,533)	21,089
Total comprehensive (loss) income	(1,780)	35,111	28,926	64,439
Less: Comprehensive (loss) income attributable to noncontrolling interests	(114)	280	221	543
Comprehensive (loss) income attributable to Ferro Corporation	$ (1,666)	$ 34,831	$ 28,705	$ 63,896