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Supplemental Balance Sheet and Income Statement Information - Other Expense (Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Other expense (income) |  |  |  |
Losses (gains) on sales, disposals and involuntary conversions of long-lived assets | $ 67,320 | $ (2,742) | $ 69,577 | $ 133
Transaction related costs | 5,894 | 1,929 | 12,938 | 1,929
Litigation expenses and reserves | 4,677 | 789 | 8,277 | 1,610
Foreign currency transaction losses (gains) | 3,758 | 1,614 | 6,280 | 2,490
(Gain) loss on debt buyback |  | 7,348 |  | 15,944
Other losses (gains) | (4,048) | 1,166 | (5,382) | 1,508
Other expense (income) | 77,601 | $ 10,104 | 91,690 | $ 23,614
Jack Up Rigs |  |  |  |
Other expense (income) |  |  |  |
Loss on sale of offshore rigs | $ (63,700) |  | $ (63,700) |

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- Definition Represents the gains (losses) on sales and retirements of long-lived assets other income expense net. + References No definition available. + Details
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- Definition Represents the gain (loss) on merger net of merger expenses. + References No definition available. + Details
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- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30700-110894 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30690-110894 + Details
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- Definition Amount of gain (loss) on sale or disposal of other assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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