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Segment Information
 6 Months Ended
Jun. 30, 2018
Segment Reporting Information, Revenue for Reportable Segment [Abstract]  
Segment Information
SEGMENT INFORMATION

Gross profit is Centrus’ measure for segment reporting. There were no intersegment sales in the periods presented. Refer to Note 2, Revenue Recognition and Contracts with Customers, for additional details on revenue for each segment.
 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2018
 
2017
 
2018
 
2017
 
(in millions)
Revenue
 
 
 
 
 
 
 
LEU Segment:
 
 
 
 
 
 
 
Separative work units
$
32.9

 
$
37.9

 
$
50.6

 
$
38.7

Uranium
—

 
—

 
3.6

 
—

 
32.9

 
37.9

 
54.2

 
38.7

Contract Services Segment
6.5

 
6.1

 
20.9

 
12.5

Revenue
$
39.4

 
$
44.0

 
$
75.1

 
$
51.2

 
 
 
 
 
 
 
 
Segment Gross Profit (Loss)
 
 
 
 
 
 
 
LEU Segment
$
(10.0
)
 
$
(4.6
)
 
$
(23.5
)
 
$
(6.5
)
Contract Services Segment
(0.7
)
 
(0.1
)
 
7.5

 
(1.1
)
Gross loss
$
(10.7
)
 
$
(4.7
)
 
$
(16.0
)
 
$
(7.6
)