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Acquisitions - Additional Information (Detail) shares in Thousands |  | 2 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Apr. 20, 2017 USD ($) Rigs hp shares | Jun. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Pretax loss |  |  | $ 148,538,000 | $ 134,893,000 | $ 249,024,000 | $ 240,826,000
Merger related costs |  |  | 51,193,000 |  | $ 56,349,000 |
Seventy Seven Energy Inc. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Shares of common stock exchange in business acquisition | shares | 46,298 |  |  |  |  |
Repayment of outstanding debt | $ 472,000,000 |  |  |  |  |
Merger date |  |  |  |  | Apr. 20, 2017 |
Total fair value of the consideration transferred | $ 1,511,396,000 |  |  |  |  |
Number of drilling rigs acquired | Rigs | 91 |  |  |  |  |
Number of horsepower of modern, efficient fracturing equipment | hp | 500,000 |  |  |  |  |
Goodwill deductible for tax purposes | $ 0 |  |  |  |  |
Revenues |  | $ 190,000,000 |  |  |  |
Pretax loss |  | $ 16,900,000 |  |  |  |
Merger related costs |  |  | $ 28,900,000 |  | $ 36,700,000 |
Seventy Seven Energy Inc. | APEX Class Rigs |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of rigs | Rigs | 36 |  |  |  |  |

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