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Goodwill and Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The carrying amounts of goodwill are as follows:
(in thousands)Metals SegmentChemicals Segment
Balance at December 31, 2019$16,203 $1,355 
Impairment charges(10,748)— 
Balance at September 30, 2020$5,455 $1,355 
Schedule of Intangible Assets Subject to Amortization
The balance of intangible assets subject to amortization are as follows:
(in thousands)September 30, 2020December 31, 2019
Intangible assets, gross$30,866 $32,126 
Accumulated amortization of intangible assets(18,735)(16,412)
Intangible assets, net$12,131 $15,714 
Schedule of Estimated Amortization Expense
Estimated amortization expense related to intangible assets for the next five years are as follows (in thousands):
Remainder of 2020$705 
20212,721 
20222,501 
20231,050 
2024952 
2025855 
Thereafter3,347