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Assets Held for Sale - Additional Information (Detail) (USD $)
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3 Months Ended | 6 Months Ended | |
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Jun. 30, 2013
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Jun. 30, 2013
rig
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Dec. 31, 2012
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| Property, Plant and Equipment [Abstract] | |||
| Assets held for sale | $ 8,656,000 | $ 8,656,000 | $ 6,800,000 |
| Number of Land Rigs impacting assets held for sale | 2 | ||
| Number of Land Rigs impacting assets held for sale in future | 3 | ||
| Additional depreciation recorded during period | $ 700,000 |
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- Definition
Number of land rigs and related equipment sold. No definition available.
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- Definition
Number of land rigs impacting assets held for sale. No definition available.
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- Definition
Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
For the asset that is reclassified back to held and use from held-for-sale, the depreciation expense recognized when the asset is reclassified. This represents the difference between the carrying value at the time the decision to reclassify is made and the carrying amount that the asset would have had if it had never been classified as held for sale (including consideration of depreciation expense). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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