Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details)

v3.8.0.1
Goodwill (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Goodwill  
Beginning balance $ 1,305,956
Goodwill adjustments (34,811)
Foreign exchange impact 2,444
Ending balance 1,273,589
Performance Materials & Chemicals  
Goodwill  
Beginning balance 914,623
Goodwill adjustments (34,811)
Foreign exchange impact 1,404
Ending balance 881,216
Environmental Catalysts & Services  
Goodwill  
Beginning balance 391,333
Goodwill adjustments 0
Foreign exchange impact 1,040
Ending balance $ 392,373