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Business Segments - Revenues (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | $ 246,887 | $ 206,133 | $ 193,907 | $ 268,939 | $ 338,566 | $ 422,251 | $ 472,761 | $ 657,699 | $ 915,866 | $ 1,891,277 | $ 3,182,291
Other Operations |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [1] |  |  |  |  |  |  |  |  | 18,299 | 24,931 | 50,196
Operating Segments | Contract Drilling |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 544,196 | 1,155,565 | 1,843,707
Operating Segments | Pressure Pumping |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  |  | 354,070 | 712,454 | 1,294,569
Intersegment Elimination |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Revenue Reconciling Item [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | [2] |  |  |  |  |  |  |  |  | $ (699) | $ (1,673) | $ (6,181)
[1] | Other operations includes the Company’s pipe handling components and related technology business, the oil and natural gas working interests and the Middle East/North Africa business.
[2] | Consists of contract drilling and, in 2016, intercompany revenues between the pipe handling component manufacturer and the pipe handling component service provider, and in 2014, pressure pumping intercompany revenues for services provided to the oil and natural gas exploration and production segment.

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