Goodwill (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The change in the carrying amount of goodwill for the six months ended June 30, 2020 is summarized as follows:

	Refining Services		Catalysts		Performance Materials		Performance Chemicals		Total
Balance as of December 31, 2019	$	311,892	$	78,611	$	275,919	$	593,383	$	1,259,805
Goodwill recognized	—		—		7,730		—		7,730
Foreign exchange impact	—		(1,677)		(922)		(9,938)		(12,537)
Balance as of June 30, 2020	$	311,892	$	76,934	$	282,727	$	583,445	$	1,254,998