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Stockholders' Equity - Additional Information (Detail) - USD ($) |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 06, 2019 | Apr. 20, 2017 | Jan. 27, 2017 | Dec. 31, 2017 | Dec. 31, 2018 | Jul. 25, 2018 | Sep. 06, 2013
2013 program |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Amount approved for repurchases under stock buyback program |  |  |  |  |  | $ 250,000,000 |
Remaining amount approved for repurchases under stock buyback program |  |  |  |  | $ 150,000,000 |  |
2013 program | Maximum |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Amount approved for repurchases under stock buyback program |  |  |  |  |  |  | $ 200,000,000
Subsequent Event |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Amount approved for repurchases under stock buyback program | $ 250,000,000 |  |  |  |  |  |
Subsequent Event | Dividend Declared |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Dividend declaration date | Feb. 06, 2019 |  |  |  |  |  |
Dividend per share, declared | $ 0.04 |  |  |  |  |  |
Dividend payment date | Mar. 21, 2019 |  |  |  |  |  |
Dividend record date | Mar. 07, 2019 |  |  |  |  |  |
Seventy Seven Energy Inc. |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Repayment of outstanding debt |  | $ 472,000,000 | $ 472,000,000 |  |  |  |
Common Stock |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Common stock offering |  |  |  | 18,170,000 |  |  |
Common Stock | Seventy Seven Energy Inc. |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |
Common stock offering |  |  | 18,200,000 |  |  |  |
Net proceeds from common stock offering |  |  | $ 472,000,000 |  |  |  |

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