Business Segments - Revenues (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | $ 492,297 | $ 598,452 | $ 675,765 | $ 704,171 | $ 795,937 | $ 867,478 | $ 854,418 | $ 809,164 | $ 2,470,685 | $ 3,326,997 | $ 2,356,684 | ||||
Contract Drilling | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 1,308,350 | 1,430,492 | 1,040,033 | ||||||||||||
Pressure Pumping | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 868,694 | 1,573,396 | 1,200,311 | ||||||||||||
Directional Drilling | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 188,786 | 209,275 | 45,580 | ||||||||||||
Operating Segments | Contract Drilling | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 1,309,988 | 1,432,012 | 1,041,492 | ||||||||||||
Operating Segments | Pressure Pumping | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 868,694 | 1,573,396 | 1,200,311 | ||||||||||||
Operating Segments | Directional Drilling | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | 188,786 | 209,275 | 45,580 | ||||||||||||
Other Operations | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | [1] | 122,885 | 131,028 | 76,781 | |||||||||||
Intersegment Elimination | |||||||||||||||
Segment Reporting Revenue Reconciling Item [Line Items] | |||||||||||||||
Total revenues | [2] | $ (19,668) | $ (18,714) | $ (7,480) | |||||||||||
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