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Segment Information (Tables) | 9 Months Ended
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Sep. 30, 2018
Segment Reporting Information, Revenue for Reportable Segment [Abstract] |
Schedule Of Segment Reporting Information | Three Months Ended September 30, 2018
| Floaters |  | Jackups |  | Other |  | Operating Segments Total |  | Reconciling Items |  | Consolidated Total
Revenues | $ | 241.8 |  |  | $ | 173.3 |  |  | $ | 15.8 |  |  | $ | 430.9 |  |  | $ | — |  |  | $ | 430.9 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Contract drilling (exclusive of depreciation) | 175.6 |  |  | 136.4 |  |  | 15.1 |  |  | 327.1 |  |  | — |  |  | 327.1 |
Depreciation | 77.8 |  |  | 39.3 |  |  | — |  |  | 117.1 |  |  | 3.5 |  |  | 120.6 |
General and administrative | — |  |  | — |  |  | — |  |  | — |  |  | 25.1 |  |  | 25.1 |
Operating income (loss) | $ | (11.6 | ) |  | $ | (2.4 | ) |  | $ | 0.7 |  |  | $ | (13.3 | ) |  | $ | (28.6 | ) |  | $ | (41.9 | )
Property and equipment, net | $ | 9,501.7 |  |  | $ | 3,190.2 |  |  | $ | — |  |  | $ | 12,691.9 |  |  | $ | 39.7 |  |  | $ | 12,731.6 |
Three Months Ended September 30, 2017
| Floaters |  | Jackups |  | Other |  | Operating Segments Total |  | Reconciling Items |  | Consolidated Total
Revenues | $ | 291.9 |  |  | $ | 153.1 |  |  | $ | 15.2 |  |  | $ | 460.2 |  |  | $ | — |  |  | $ | 460.2 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Contract drilling (exclusive of depreciation) | 139.1 |  |  | 132.9 |  |  | 13.8 |  |  | 285.8 |  |  | — |  |  | 285.8 |
Depreciation | 72.7 |  |  | 31.6 |  |  | — |  |  | 104.3 |  |  | 3.9 |  |  | 108.2 |
General and administrative | — |  |  | — |  |  | — |  |  | — |  |  | 30.4 |  |  | 30.4 |
Operating income (loss) | $ | 80.1 |  |  | $ | (11.4 | ) |  | $ | 1.4 |  |  | $ | 70.1 |  |  | $ | (34.3 | ) |  | $ | 35.8 |
Property and equipment, net | $ | 8,545.5 |  |  | $ | 2,502.4 |  |  | $ | — |  |  | $ | 11,047.9 |  |  | $ | 48.5 |  |  | $ | 11,096.4 |
Nine Months Ended September 30, 2018
| Floaters |  | Jackups |  | Other |  | Operating Segments Total |  | Reconciling Items |  | Consolidated Total
Revenues | $ | 785.7 |  |  | $ | 475.4 |  |  | $ | 45.3 |  |  | $ | 1,306.4 |  |  | $ | — |  |  | $ | 1,306.4 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Contract drilling (exclusive of depreciation) | 564.4 |  |  | 390.1 |  |  | 42.1 |  |  | 996.6 |  |  | — |  |  | 996.6 |
Depreciation | 233.9 |  |  | 112.3 |  |  | — |  |  | 346.2 |  |  | 10.3 |  |  | 356.5 |
General and administrative | — |  |  | — |  |  | — |  |  | — |  |  | 79.1 |  |  | 79.1 |
Operating income (loss) | $ | (12.6 | ) |  | $ | (27.0 | ) |  | $ | 3.2 |  |  | $ | (36.4 | ) |  | $ | (89.4 | ) |  | $ | (125.8 | )
Property and equipment, net | $ | 9,501.7 |  |  | $ | 3,190.2 |  |  | $ | — |  |  | $ | 12,691.9 |  |  | $ | 39.7 |  |  | $ | 12,731.6 |
Nine Months Ended September 30, 2017
| Floaters |  | Jackups |  | Other |  | Operating Segments Total |  | Reconciling Items |  | Consolidated Total
Revenues | $ | 840.7 |  |  | $ | 503.8 |  |  | $ | 44.3 |  |  | $ | 1,388.8 |  |  | $ | — |  |  | $ | 1,388.8 |
Operating expenses |  |  |  |  |  |  |  |  |  |  |
Contract drilling (exclusive of depreciation) | 431.1 |  |  | 383.8 |  |  | 40.3 |  |  | 855.2 |  |  | — |  |  | 855.2 |
Depreciation | 217.5 |  |  | 95.3 |  |  | — |  |  | 312.8 |  |  | 12.5 |  |  | 325.3 |
General and administrative | — |  |  | — |  |  | — |  |  | — |  |  | 86.9 |  |  | 86.9 |
Operating income | $ | 192.1 |  |  | $ | 24.7 |  |  | $ | 4.0 |  |  | $ | 220.8 |  |  | $ | (99.4 | ) |  | $ | 121.4 |
Property and equipment, net | $ | 8,545.5 |  |  | $ | 2,502.4 |  |  | $ | — |  |  | $ | 11,047.9 |  |  | $ | 48.5 |  |  | $ | 11,096.4 |
Schedule Of Geographic Distribution Of Rigs By Segment | As of September 30, 2018, the geographic distribution of our drilling rigs by reportable segment was as follows:
| Floaters |  | Jackups |  | Total(1)
North & South America | 8 |  | 4 |  | 12
Europe & Mediterranean | 6 |  | 11 |  | 17
Middle East & Africa | 3 |  | 12 |  | 15
Asia & Pacific Rim | 5 |  | 7 |  | 12
Asia & Pacific Rim (under construction) | 2 |  | 1 |  | 3
Total | 24 |  | 35 |  | 59
(1) | We provide management services on two rigs owned by third-parties in the U.S. Gulf of Mexico, which are not included in the table above.

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