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Reportable Segments - Additional Information (Detail)
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3 Months Ended | 12 Months Ended | |||
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Mar. 31, 2014
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Mar. 31, 2013
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Segment Information [Line Items] | |||||
| Number of operating segments | 5 | 5 | |||
| Number of major customer | 2 | 2 | |||
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Exxon Neftegas Limited [Member]
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| Segment Information [Line Items] | |||||
| Percentage of revenue from major customer | 17.10% | 15.10% | 15.60% | 12.00% | 16.00% |
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Exxon Neftegas Limited [Member] | International Drilling [Member]
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| Segment Information [Line Items] | |||||
| Percentage of revenue from major customer | 37.60% | 38.50% | 38.30% | 27.00% | 34.00% |
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Exxon Neftegas Limited [Member] | Technical Services [Member]
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| Segment Information [Line Items] | |||||
| Percentage of revenue from major customer | 52.40% | 33.90% | |||
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Dowell Schlumberger [Member]
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| Segment Information [Line Items] | |||||
| Percentage of revenue from major customer | 10.00% | ||||
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Dowell Schlumberger [Member] | International Drilling [Member]
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| Segment Information [Line Items] | |||||
| Percentage of revenue from major customer | 24.00% | ||||
| X | ||||||||||
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- Definition
Entity Wide Revenue Number Of Major Customer No definition available.
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- Details
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- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. No definition available.
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