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Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue by Product Group
The following table presents the Company's revenues, disaggregated by product group. Substantially all of the Company's revenues are derived from contracts with customers where performance obligations are satisfied at a point-in-time.
December 31,
(in thousands)20202019
Specialty chemicals$51,541 $54,090 
Stainless steel pipe and tube154,974 167,907 
Heavy wall seamless carbon steel pipe and tube23,670 30,607 
Fiberglass and steel liquid storage tanks and separation equipment5,503 28,722 
Galvanized pipe and tube20,312 23,842 
Net sales$256,000 $305,168