Segment Information (Financial information for Company's segments) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | |
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014 |
Segment Reporting Information [Line Items] | | | | | |
Total revenues | $ 601,396 | $ 1,209,026 | $ 2,229,415 | $ 3,377,996 | |
Cost of services (exclusive of items shown separately below) | 420,485 | 721,692 | 1,468,264 | 2,023,590 | |
Depreciation, depletion, amortization and accretion | 146,757 | 170,154 | 467,329 | 493,437 | |
General and administrative expenses | 123,189 | 154,859 | 403,812 | 457,631 | |
Reduction in value of assets | 755,632 | | 1,563,269 | | |
Income from operations | (844,667) | 162,321 | (1,673,259) | 403,338 | |
Interest income (expense), net | (22,622) | (24,169) | (71,213) | (72,610) | |
Other Nonoperating Income (Expense) | (3,123) | (2,051) | (10,620) | (1,480) | |
Income (loss) from continuing operations before income taxes | (870,412) | 136,101 | (1,755,092) | 329,248 | |
Identifiable Assets | 5,284,388 | | 5,284,388 | | $ 7,377,389 |
Disposal Group, Including Discontinued Operation, Assets | | | | | 116,700 |
Subsea and Technical Solutions [Member] | | | | | |
Segment Reporting Information [Line Items] | | | | | |
Total revenues | 104,074 | 150,180 | 346,396 | 419,922 | |
Cost of services (exclusive of items shown separately below) | 71,284 | 79,415 | 222,841 | 223,938 | |
Depreciation, depletion, amortization and accretion | 14,063 | 22,016 | 44,701 | 54,964 | |
General and administrative expenses | 27,135 | 32,694 | 85,229 | 87,943 | |
Income from operations | (8,408) | 16,055 | (6,375) | 53,077 | |
Interest income (expense), net | 431 | 404 | 1,272 | 1,167 | |
Income (loss) from continuing operations before income taxes | (7,977) | 16,459 | (5,103) | 54,244 | |
Identifiable Assets | 888,272 | | 888,272 | | 946,813 |
Production Services [Member] | | | | | |
Segment Reporting Information [Line Items] | | | | | |
Total revenues | 164,001 | 348,793 | 624,214 | 1,013,904 | |
Cost of services (exclusive of items shown separately below) | 130,103 | 248,567 | 478,032 | 706,911 | |
Depreciation, depletion, amortization and accretion | 30,159 | 41,225 | 105,990 | 123,213 | |
General and administrative expenses | 35,268 | 45,627 | 115,385 | 138,058 | |
Reduction in value of assets | 15,632 | | 767,209 | | |
Income from operations | (47,161) | 13,374 | (842,402) | 45,722 | |
Interest income (expense), net | (845) | | (979) | | |
Income (loss) from continuing operations before income taxes | (48,006) | 13,374 | (843,381) | 45,722 | |
Identifiable Assets | 1,108,940 | | 1,108,940 | | 2,116,171 |
Onshore Completion and Workover Services [Member] | | | | | |
Segment Reporting Information [Line Items] | | | | | |
Total revenues | 202,845 | 470,849 | 780,200 | 1,258,774 | |
Cost of services (exclusive of items shown separately below) | 174,362 | 317,433 | 610,620 | 876,575 | |
Depreciation, depletion, amortization and accretion | 53,854 | 59,009 | 169,144 | 174,995 | |
General and administrative expenses | 30,321 | 39,625 | 101,644 | 114,604 | |
Reduction in value of assets | 740,000 | | 780,263 | | |
Income from operations | (795,692) | 54,782 | (881,471) | 92,600 | |
Income (loss) from continuing operations before income taxes | (795,692) | 54,782 | (881,471) | 92,600 | |
Identifiable Assets | 1,960,995 | | 1,960,995 | | 3,010,295 |
Drilling Products and Services [Member] | | | | | |
Segment Reporting Information [Line Items] | | | | | |
Total revenues | 130,476 | 239,204 | 478,605 | 685,396 | |
Cost of services (exclusive of items shown separately below) | 44,736 | 76,277 | 156,771 | 216,166 | |
Depreciation, depletion, amortization and accretion | 48,681 | 47,904 | 147,494 | 140,265 | |
General and administrative expenses | 30,465 | 36,913 | 101,554 | 117,026 | |
Reduction in value of assets | | | 15,797 | | |
Income from operations | 6,594 | 78,110 | 56,989 | 211,939 | |
Income (loss) from continuing operations before income taxes | 6,594 | 78,110 | 56,989 | 211,939 | |
Identifiable Assets | 1,326,181 | | 1,326,181 | | $ 1,304,110 |
Unallocated [Member] | | | | | |
Segment Reporting Information [Line Items] | | | | | |
Interest income (expense), net | (22,208) | (24,573) | (71,506) | (73,777) | |
Other Nonoperating Income (Expense) | (3,123) | (2,051) | (10,620) | (1,480) | |
Income (loss) from continuing operations before income taxes | $ (25,331) | $ (26,624) | $ (82,126) | $ (75,257) | |