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Commitments And Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract] |
Capital Commitments | The following table summarizes the cumulative amount of contractual payments made as of December 31, 2015 for our rigs under construction and estimated timing of our remaining contractual payments (in millions):
|  | Cumulative Paid(1) |  | 2016 |  | 2017 |  | 2018 |  | Total(2)
ENSCO DS-10 |  | $ | 236.2 |  |  | $ | 9.3 |  |  | $ | 310.5 |  |  | $ | — |  |  | $ | 556.0 |
ENSCO 123 |  | 53.5 |  |  | 3.2 |  |  | 9.5 |  |  | 215.4 |  |  | 281.6 |
ENSCO 140 |  | 156.8 |  |  | 39.9 |  |  | — |  |  | — |  |  | 196.7 |
ENSCO 141 |  | 78.4 |  |  | 117.2 |  |  | — |  |  | — |  |  | 195.6 |
|  | $ | 524.9 |  |  | $ | 169.6 |  |  | $ | 320.0 |  |  | $ | 215.4 |  |  | $ | 1,229.9 |
(1) | Cumulative paid represents the aggregate amount of contractual payments made from commencement of the construction agreement through December 31, 2015.
(2) | Total commitments are based on fixed-price shipyard construction contracts, exclusive of costs associated with commissioning, systems integration testing, project management and capitalized interest.

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