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Revenue
3 Months Ended
Mar. 31, 2020
Revenue Recognition and Deferred Revenue [Abstract]  
Revenue
Revenue

We disaggregate our revenue by geographical region as follows:
Net Sales
 
Three months ended March 31,
 
 
2020
 
2019
United States
 
$
274.1

 
$
325.2

Iceland
 
147.1

 
164.8

Total
 
$
421.2

 
$
490.0


Trade accounts receivable - net as of March 31, 2020 decreased by $17.3 million from December 31, 2019 due to a decrease in sales resulting from lower realized LME prices and timing of receivable collections.