Goodwill And Other Intangible Assets (Details And Activity Of Goodwill By Segment) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2019 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net, beginning balance	$ 216,464
Impairments	(9,020)
Foreign currency adjustments	(3,849)
Goodwill, net, ending balance	203,595
Performance Coatings [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net, beginning balance	44,352
Impairments	(9,020)
Foreign currency adjustments	(1,926)
Goodwill, net, ending balance	33,406
Color Solutions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net, beginning balance	50,545
Impairments
Foreign currency adjustments	(809)
Goodwill, net, ending balance	49,736
Performance Colors And Glass [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, net, beginning balance	121,567
Impairments
Foreign currency adjustments	(1,114)
Goodwill, net, ending balance	$ 120,453