Restructuring and Cost Reduction Programs (Summary of Charges Associated with Restructuring Programs by Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	$ 5,654
Restructuring charges incurred	14,410	$ 17,425	$ 10,955
Cumulative Charges To Date	42,790
Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	268
Restructuring charges incurred	106	128	119
Cumulative Charges To Date	353
Functional Coatings | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	169
Restructuring charges incurred	0	27	(5)
Cumulative Charges To Date	22
Color Solutions | Operating Segments
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	99
Restructuring charges incurred	106	101	124
Cumulative Charges To Date	331
Corporate Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Total Expected Charges	5,386
Restructuring charges incurred	14,304	$ 17,297	$ 10,836
Cumulative Charges To Date	$ 42,437