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Unaudited Quarterly Financial Information (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Jun. 30, 2012
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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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| Unaudited Quarterly Financial Information | ||||||||||||
| Operating revenues and Earnings (losses) from unconsolidated affiliates from continuing operations | $ 1,605,390 | $ 1,548,965 | $ 1,459,326 | $ 1,538,373 | $ 1,571,745 | $ 1,630,380 | $ 1,541,841 | $ 1,810,367 | $ 6,152,054 | $ 6,554,333 | $ 6,098,928 | |
| Income (loss) from continuing operations, net of tax | 128,516 | (90,510) | 28,128 | 92,207 | 131,656 | 64,489 | (121,626) | 158,546 | 36,920 | 158,341 | 232,974 | 347,170 |
| Income (loss) from discontinued operations, net of tax | 23,113 | (14,430) | (26,873) | 7,011 | (103,414) | 12,155 | 26,710 | (2,977) | (11,179) | (67,526) | (97,601) | |
| Less: Net (income) loss attributable to noncontrolling interest | (1,026) | (441) | (5,616) | (97) | (1,074) | (988) | 1,174 | 267 | (7,180) | (621) | (1,045) | |
| Net income (loss) attributable to Nabors | 150,603 | (105,381) | (4,361) | 99,121 | 27,077 | 75,656 | (93,742) | 155,836 | 62,094 | 139,982 | 164,827 | 248,524 |
| Earnings (losses) per share: | ||||||||||||
| Basic from continuing operations (in dollars per share) | $ 0.43 | $ (0.30) | $ 0.08 | $ 0.31 | $ 0.45 | $ 0.22 | $ (0.41) | $ 0.55 | $ 0.13 | $ 0.51 | $ 0.80 | $ 1.21 |
| Basic from discontinued operations (in dollars per share) | $ 0.07 | $ (0.05) | $ (0.09) | $ 0.03 | $ (0.36) | $ 0.04 | $ 0.09 | $ (0.01) | $ (0.04) | $ (0.23) | $ (0.34) | |
| Total Basic (in dollars per share) | $ 0.50 | $ (0.35) | $ (0.01) | $ 0.34 | $ 0.09 | $ 0.26 | $ (0.32) | $ 0.54 | $ 0.21 | $ 0.47 | $ 0.57 | $ 0.87 |
| Diluted from continuing operations (in dollars per share) | $ 0.42 | $ (0.30) | $ 0.08 | $ 0.31 | $ 0.45 | $ 0.22 | $ (0.41) | $ 0.54 | $ 0.13 | $ 0.51 | $ 0.79 | $ 1.18 |
| Diluted from discontinued operations (in dollars per share) | $ 0.08 | $ (0.05) | $ (0.09) | $ 0.02 | $ (0.36) | $ 0.04 | $ 0.09 | $ (0.01) | $ (0.04) | $ (0.23) | $ (0.33) | |
| Total Diluted (in dollars per share) | $ 0.50 | $ (0.35) | $ (0.01) | $ 0.33 | $ 0.09 | $ 0.26 | $ (0.32) | $ 0.53 | $ 0.21 | $ 0.47 | $ 0.56 | $ 0.85 |
| Additional disclosure | ||||||||||||
| Earnings (losses) from unconsolidated affiliates | $ (1,600) | $ (2,600) | $ 1,400 | $ 2,900 | $ 1,200 | $ (99,500) | $ (156,063) | $ (34,321) | $ (190,384) | $ 39 | $ (288,718) | $ 85,448 |