Goodwill

6 Months Ended

Jun. 26, 2020

Goodwill Disclosure [Abstract]

Goodwill

Goodwill

A summary of changes in goodwill by reportable segment is as follows:

(Thousands)	Performance Alloys and Composites		Advanced Materials		Precision Coatings		Total
Balance at December 31, 2019	$	1,899	$	50,190	$	26,922	$	79,011
Impairment charge	—		—		(9,053)		(9,053)
Other	—		43		—		43
Balance at June 26, 2020	$	1,899	$	50,233	$	17,869	$	70,001

Goodwill is reviewed annually for impairment or more frequently if impairment indicators arise. The Company conducts its annual goodwill impairment assessment as of the first day of the fourth quarter, or more frequently under certain circumstances. Goodwill is assigned to the reporting unit, which is the operating segment level or one level below the operating segment.