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Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | $ 2,017,548 | $ 2,134,043 | $ 3,043,383
UNITED STATES |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 804,807 | 841,531 | 1,554,442
Saudi Arabia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 645,000 | 642,700 | 696,400
Operating Segments | Lower 48 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 679,484 | 691,963 | 1,365,077
Operating Segments | U.S. Offshore Gulf Of Mexico |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 137,110 | 135,601 | 170,262
Operating Segments | Alaska |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 29,265 | 39,221 | 67,899
Operating Segments | CANADA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 45,057 | 59,461 | 78,875
Operating Segments | Middle East & Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 807,078 | 827,501 | 865,889
Operating Segments | Latin America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 273,485 | 235,685 | 373,065
Operating Segments | Europe, Africa & CIS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 102,456 | 191,440 | 225,301
Operating Segments | US Segment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 669,656 | 713,057 | 1,240,936
Operating Segments | US Segment | Lower 48 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 512,880 | 548,859 | 1,021,879
Operating Segments | US Segment | U.S. Offshore Gulf Of Mexico |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 128,323 | 126,292 | 156,931
Operating Segments | US Segment | Alaska |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 28,453 | 37,906 | 62,126
Operating Segments | Canada Segment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 39,336 | 54,753 | 68,274
Operating Segments | Canada Segment | CANADA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 39,336 | 54,753 | 68,274
Operating Segments | International Excluding Canada |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 1,043,197 | 1,131,673 | 1,324,142
Operating Segments | International Excluding Canada | Middle East & Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 706,267 | 728,983 | 765,493
Operating Segments | International Excluding Canada | Latin America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 251,153 | 228,930 | 355,189
Operating Segments | International Excluding Canada | Europe, Africa & CIS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 85,777 | 173,760 | 203,460
Operating Segments | Drilling Solutions |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 172,473 | 149,834 | 252,790
Operating Segments | Drilling Solutions | Lower 48 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 97,354 | 88,919 | 170,639
Operating Segments | Drilling Solutions | U.S. Offshore Gulf Of Mexico |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 8,787 | 9,309 | 13,331
Operating Segments | Drilling Solutions | Alaska |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 753 | 1,296 | 4,787
Operating Segments | Drilling Solutions | CANADA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 1,342 | 1,137 | 1,749
Operating Segments | Drilling Solutions | Middle East & Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 40,492 | 40,255 | 43,941
Operating Segments | Drilling Solutions | Latin America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 22,104 | 6,578 | 15,558
Operating Segments | Drilling Solutions | Europe, Africa & CIS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 1,641 | 2,340 | 2,785
Operating Segments | Rig Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 149,273 | 131,555 | 260,226
Operating Segments | Rig Services | Lower 48 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 69,250 | 54,185 | 172,559
Operating Segments | Rig Services | Alaska |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 59 | 19 | 986
Operating Segments | Rig Services | CANADA |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 4,379 | 3,571 | 8,852
Operating Segments | Rig Services | Middle East & Asia |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 60,319 | 58,263 | 56,455
Operating Segments | Rig Services | Latin America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 228 | 177 | 2,318
Operating Segments | Rig Services | Europe, Africa & CIS |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | 15,038 | 15,340 | 19,056
Intersegment Eliminations |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | (56,387) | (46,829) | (102,985)
Intersegment Eliminations | Other. |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Operating revenues | $ (56,387) | $ (46,829) | $ (102,985)

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