Goodwill

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

Changes in the carrying value of goodwill for each reporting unit are as follows (in thousands):

	Energy Chemistry Technologies		Consumer and Industrial Chemistry Technologies		Total
Balance at December 31, 2016	$	37,180	$	19,480	$	56,660
Goodwill impairment recognized	—		—		—
Balance at March 31, 2017	$	37,180	$	19,480	$	56,660

During the three months ended March 31, 2017 and 2016, no impairments of goodwill were recognized.