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Segment Information (Tables)
 3 Months Ended
Mar. 31, 2017
Segment Reporting Information, Revenue for Reportable Segment [Abstract]  
Schedule Of Segment Reporting Information

Three Months Ended March 31, 2017
 
Floaters
 
Jackups
 
Other
 
Operating Segments Total
 
Reconciling Items
 
Consolidated Total
Revenues
$
284.8

 
$
171.8

 
$
14.5

 
$
471.1

 
$
—

 
$
471.1

Operating expenses
 
 
 
 
 
 
 
 
 
 
 
Contract drilling (exclusive of depreciation)
146.4

 
118.6

 
13.1

 
278.1

 
—

 
278.1

Depreciation
72.8

 
32.1

 
—

 
104.9

 
4.3

 
109.2

General and administrative
—

 
—

 
—

 
—

 
26.0

 
26.0

Operating income
$
65.6

 
$
21.1

 
$
1.4

 
$
88.1

 
$
(30.3
)
 
$
57.8

Property and equipment, net
$
8,534.3

 
$
2,532.4

 
$
—

 
$
11,066.7

 
$
54.0

 
$
11,120.7


Three Months Ended March 31, 2016
 
Floaters
 
Jackups
 
Other
 
Operating Segments Total
 
Reconciling Items
 
Consolidated Total
Revenues
$
512.6

 
$
277.9

 
$
23.5

 
$
814.0

 
$
—

 
$
814.0

Operating expenses
 
 
 
 
 
 
 
 
 
 
 
Contract drilling (exclusive of depreciation)
211.3

 
134.5

 
17.9

 
363.7

 
—

 
363.7

Depreciation
80.3

 
28.6

 
—

 
108.9

 
4.4

 
113.3

General and administrative
—

 
—

 
—

 
—

 
23.4

 
23.4

Operating income
$
221.0

 
$
114.8

 
$
5.6

 
$
341.4

 
$
(27.8
)
 
$
313.6

Property and equipment, net
$
8,480.6

 
$
2,549.8

 
$
—

 
$
11,030.4

 
$
66.7

 
$
11,097.1
Schedule Of Geographic Distribution Of Rigs By Segment
As of March 31, 2017, the geographic distribution of our drilling rigs by reportable segment was as follows:
 
Floaters
 
Jackups
 
Total(1)
North & South America
8
 
5
 
13
Europe & Mediterranean
6
 
11
 
17
Middle East & Africa
1
 
11
 
12
Asia & Pacific Rim
4
 
6
 
10
Asia & Pacific Rim (under construction)
1
 
1
 
2
Held-for-Sale
1
 
4
 
5
Total
21
 
38
 
59


(1) 
We provide management services on two rigs owned by third-parties in the Gulf of Mexico and not included in the table above.