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Segment Information (Tables)
3 Months Ended
Mar. 31, 2019
Segment Reporting Information, Revenue for Reportable Segment [Abstract]  
Revenue from External Customers by Geographic Areas
The following table presents revenue from separative work units (“SWU”) and uranium sales disaggregated by geographical region based on the billing addresses of customers (in millions):
 
Three Months Ended 
 March 31,
 
2019
 
2018
United States
$
35.1

 
$
21.1

Foreign

 
0.2

Revenue - SWU and uranium
$
35.1

 
$
21.3

Segment Reporting Information
The following table presents the Company’s segment information (in millions):

 
Three Months Ended March 31,
 
2019
 
2018
Revenue
 
 
 
LEU segment:
 
 
 
Separative work units
$
12.4

 
$
17.7

Uranium
22.7

 
3.6

Total
35.1

 
21.3

Contract services segment
3.6

 
14.4

Total revenue
$
38.7

 
$
35.7

 
 
 
 
Segment Gross Profit (Loss)
 
 
 
LEU segment
$
(3.2
)
 
$
(13.5
)
Contract services segment
(2.3
)
 
7.9

Gross profit (loss)
$
(5.5
)
 
$
(5.6
)