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Segment Information (Tables)
3 Months Ended
Mar. 31, 2018
Segment Reporting [Abstract]  
Schedule of Segment Information
Segment results are presented below (in millions):
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Three months ended March 31,
 
Deepwater
 
Jack-ups
 
ARO
 
Unallocated and other
 
Reportable segments total
 
Eliminations and adjustments
 
Consolidated
2018
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenue
$
52.1

 
$
150.1

 
$
58.3

 
$
9.0

 
$
269.5

 
$
(58.3
)
 
$
211.2

Operating expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
Direct operating costs (excluding items below)
29.0

 
128.4

 
33.4

 

 
190.8

 
(33.4
)
 
157.4

Depreciation and amortization
26.9

 
70.3

 
16.6

 
0.7

 
114.5

 
(16.6
)
 
97.9

Selling, general and administrative

 

 
6.4

 
25.6

 
32.0

 
(6.4
)
 
25.6

Other operating items - expense

 
1.3

 
0.1

 

 
1.4

 
(0.1
)
 
1.3

Equity in losses of unconsolidated subsidiary

 

 

 

 

 
(1.3
)
 
(1.3
)
Income (loss) from operations
$
(3.8
)
 
$
(49.9
)
 
$
1.8

 
$
(17.3
)
 
$
(69.2
)
 
$
(3.1
)
 
$
(72.3
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2017
(As adjusted)
Revenue
$
160.7

 
$
213.6

 
$

 
$

 
$
374.3

 
$

 
$
374.3

Operating expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
Direct operating costs (excluding items below)
44.9

 
126.4

 

 

 
171.3

 

 
171.3

Depreciation and amortization
28.3

 
70.1

 

 
0.7

 
99.1

 

 
99.1

Selling, general and administrative

 

 

 
24.2

 
24.2

 

 
24.2

Other operating items - expense

 
3.4

 

 

 
3.4

 

 
3.4

Income (loss) from operations
$
87.5

 
$
13.7

 
$

 
$
(24.9
)
 
$
76.3

 
$

 
$
76.3

Revenue from External Customers by Products and Services [Table Text Block]
The classifications of revenue among geographic areas in the tables which follow (in millions) were determined based on segment and physical location of assets. Because the Company evaluates performance primarily based on income from operations and the Company’s offshore drilling rigs are mobile, classifications by area are dependent on the rigs’ location at the time revenue is earned and may vary from one period to the next.
 
Three months ended March 31,
 
2018
 
2017
Deepwater Revenue:
 
 
 
United States
$
52.1

 
$
160.7

Total
$
52.1

 
$
160.7

 
Three months ended March 31,
 
2018
 
2017
Jack-ups Revenue:
 
 
 
Saudi Arabia
$
87.9

 
$
94.2

Norway
38.8

 
51.2

Trinidad
11.6

 
41.4

United Kingdom
10.4

 
15.5

United States
1.4

 
10.8

Other

 
0.5

Total
$
150.1

 
$
213.6

 
Three months ended March 31,
 
2018
 
2017
Unallocated and Other Revenue:
 
 
 
Saudi Arabia
$
9.0

 
$

Total
$
9.0

 
$